How to Easily Master Format LENOVO A850 with Safety Hard Reset?

Tips and tricks for solving LENOVO A850 / A850+ problem. When we need Android smartphone with big LCD screen and reasonable price, then LENOVO A850 is the answer. Because LENOVO A850 have 5.5 inches LCD screen width IPS capacitive touch screen. If we like to take pictures a lot, LENOVO A850 will help you to fulfill that need by using 5 megapixel digital camera and also have LED flash to help taking better photo in low light conditions.

What is the different between LENOVO A850 vs LENOVO A850+ (PLUS) ?

Actually almost all specification are not different between A850 compare with A850 PLUS, except A850 PLUS using newer processor Mediatek MT6592M that can give maximum clock speed at Octa-core 1.4 GHz with faster GPU (graphic processor unit) Mali-450MP4 to play 3D HD Games without problems at the same 5.5. inches LCD screen.

What is Advantage of LENOVO A850 / A850+ (PLUS) Specifications:

GSM 3G HSDPA Dual SIM GSM-GSM
LCD 5.5 inches touch screen
Internal memory 4GB
RAM 1GB
External memory microSD, up to 32 GB
Main Camera 5 MP, 2592х1944 pixels, autofocus, LED flash
Front camera for VGA for Picture and Video conference
Processor Quad-core 1.3 GHz Cortex-A7 for LENOVO A850
Processor Quad-core 1.4 Ghz Cortex-A7 for LENOVO A850 PLUS
GPU Mali-400MP2
Operating system Android OS, v4.2.2 (Jelly Bean)
Battery Li-Ion 2250 mAh

How to Fix or Problem Solving for Recovery LENOVO A850 / A850+ (PLUS)hang or not responding or malfunctions or stuck or freezing or bricked ?

Having big LCD screen Android will make us feel so happy to play games or install other applications from Google Play Store. But we have to know that not all applications will run smooth in LENOVO A850 because some creator does not make their applications in good functions, especially for LENOVO A850. In this case, if we force to install unnecessary applications, sometime it will make our smartphone become hang or stuck or bricks or frozen or blank or LCD touch screen not responding. If we get this problem, we need to try doing soft reset or reboot or restart LENOVO A850 to delete cache and temporary files. If LENOVO A850 still get the same problem, we need to do hard reset or master format.

How to force Soft Reset or Reboot or Restart LENOVO A850 / A850+ (PLUS) ?

When we use LENOVO A850 and get hang or stuck or frozen problem in the middle of using applications, we can try to force reboot or restart LENOVO A850 by pressing POWER BUTTON for several seconds. If the POWER BUTTON can not work, then try to remove the battery of LENOVO A850 by open back case cover and unplug the battery for about 5 seconds. After that we can plug it again in the right positions and turn on LENOVO A850 to finish the restart or soft reset step. In normal situations, doing soft reset or reboot can be done by pressing POWER BUTTON for several seconds until the pop up menu appear, then choose Restart or Reboot to soft reset LENOVO A850. Doing soft reset is safe, because this step will not erase or wipe any important data like contact or photo or files from LENOVO A850.

How toHard Reset LENOVO A850 with Hardware Button key:

  1. Confirm and make sure that LENOVO A850 Battery is fully charge or not empty
  2. Turn off LENOVO A850
  3. Press together :POWER + VOLUME UPabout several second, that the warning will appear at the LENOVO A850
  4. You can also try to press POWER BUTTON until Lenovo logo appear, then continue press VOLUME UP + VOLUME DOWN together until menu appear
  5. Choose:Reset DeviceorWipe dataorClear eMMC
  6. Make sure we already sure than we know that our application and data will be loose or clear while Resetting LENOVO A850

How to Restore and Reinstall or Reformat Clean Android Operating system / firmware at LENOVO A850 / A850+ (PLUS) ?

LENOVO A850 using Android as operating system, in the first production when ship to store, LENOVO A850 use Android Jelly Bean version 2.2 which run very smooth in this smartphone. After using several month and install many applications, sometime the operating system could damage or broken. In this case maybe we need to reinstall or restore clean and factory default Android operating system or firmware. The source file of factory default Android operating system already saved inside LENOVO A850 rom. We do not need to copy any data for preparing the reinstall step. Just follow the hard reset step above, then the clean and factory default setting Android operating system will be reinstall by itself. The time to reinstall will take less than 5 minutes. Please make sure all data already backup before doing reinstall or hard reset, because all data will be wipe or removed from internal memory.

How to Unlock or Fix or Bypass or Solutions for LENOVO A850 / A850+ (PLUS)forgot password code or security lock screen pattern or pin (lost password)?

The recommended options to give security protections for LENOVO A850 is using screen lock pattern. Some user still also like to use password pin protections. We can easily choose and change how to secure our LENOVO A850 data when the phone away from us, but using screen lock pattern is faster to open then using password in some situations. The problem happen when we forget the answer of that screen lock pattern or password pin protections. We do not need to worry, because Android have option to bypass or unlock forgotten screen lock pattern or password pin protection. Please do several time wrong answer for that security protection continuously until the phone frozen or locked for several seconds. In this time, we will see Forget Password / Pattern button to help us unlock protection using Google account or Gmail account. If we can not use or Google account at this phone, then we need to do hard reset or master format.

How to Improve Performance LENOVO A850 / A850+ (PLUS)to make run more faster?

Running LENOVO A850 for Games or doing office activity will be fun if the phone does not have problem. But some user have problem with their LENOVO A850 which run more slowly then before. As far as we know, if the phone run slowly, because there are many applications run in the background and the processor LENOVO A850 performance will be working more hard when that applications doing update or work in progress. That is why we are really recommend for uninstall not use applications, especially which run in the background. If we can not find out which applications that make problem, and need to tweak LENOVO A850 performance run more faster again like beginning, then we may need to perform hard reset or master format to clean anything from our phone and run with factory default applications. After that we can carefully choose and install only specific applications that we use everyday.

Is That Any Secret Code for Doing Format LENOVO A850 / A850+ (PLUS)?

There is no secret hidden code for LENOVO A850 to make it back to factory default. Do the options above to hard reset it.

How to Upgrade or Update LENOVO A850 / A850+ (PLUS)operating system to Kitkat or Lollipop or Marshmallow or newer Android version?

By default the shipping ROM of LENOVO A850 is Jelly Bean version 4.2.2. Base on the specifications, the LENOVO A850 can be upgrade to Android Kitkat version, but unfortunately until we write this articles, there is no official upgrade for LENOVO A850 to Android Kitkat version. However, there are some other unofficial Kitkat ROM for LENOVO A850 from other community homepage, but if we are not sure how to upgrade it, please do it carefully, because it could make our LENOVO A850 broken or can not use anymore. Using official Jelly Bean at LENOVO A850 is still recommended to use everyday without problems.

This problems also happen at newer version, LENOVO A850 still can not upgrade to official Android Nougat or Android Oreo or Android Pie, because the official development for firmware upgrade at LENOVO A850 has been discontinued.

193 thoughts on “How to Easily Master Format LENOVO A850 with Safety Hard Reset?”

  1. Sir l have lenovo a850. Whenever I press *123# code it does not perform task instead makes call to *123.please send answer

    Reply
    • Hi, when you dial *123# and continue press Call icon, this process will be contact to operator directly for request USSD code from your phone operator. The answer will vary depend on each operator but the phone only wait to get reply to show at LCD screen. Try to contact other number and see weather it run or not. Also consider to open your GMS card and test at other phone and run that USSD code again.

      Reply
  2. Sir..Why is it that when I tried to make a call, the phone automatically power off?Same goes when I tried to answer a call.It will automatically power off.is there anythng that I can do to make it okay once again?

    Reply
    • Hi, if your Lenovo A850 suddenly turn off when received or make phone call, then maybe the problem comes from the battery or software. Please make sure the battery is working properly or not empty. If the battery fine, then one or some 3th party applications that you have installed could make the phone become crash when phone call active. Try to find which application related to phone call. If you can not find that, then you should try to do hard reset or master format with steps above.

      Reply
      • Hi, have you ever try to do hard reset or master format? Please try to do it and see whether the problem solve or not. You also need to make sure your battery phone is working properly.

        Reply
  3. sir, i’m using lenovo a850, i have a problem with pin password. i enter the password like previously i entered, but it come to happen wrong pin. how to solve it??

    Reply
    • Hi, you can try to fix forgotten pin protection using Gmail username and password that you have already sign-in before. Try to give several time wrong answer continuously until the phone freeze for about 30 seconds, at this time you will find Forgot Password button, press this button to unlock your phone using Gmail account. Please make sure your Internet connection active when unlock it. If you can not access Google account, then you have to do hard reset or master format with hardware button at above steps.

      Reply
  4. Sir i’m using lenovo A850i n need to now which rom suitable for this phone any suggestion.i want to know how to replace all hardware and system to the new rom and hardware.

    Reply
    • Hi, by default Lenovo A850i already have appropriate factory default operating system or firmware, it can run normally for daily activity. However, there are some other community which also give choice for flashing with custom ROM. But you should root and install with recovery mode. But you have to know that flashing or install custom ROM only suggested for special user and know that the wrong result can make the Lenovo A850 become trouble or stuck and can not use anymore. So, you should carefully doing that. Or better to keep use your factory default ROM or firmware.

      Reply
    • Hi, you can try to make sure your Android charger is working good. Please try to use different Android charger which have minimum 1mAh capacity. You also need to uninstall some battery tweak applications that you have ever downloaded from Google Play Store. If you Lenovo A850 still get the same problem, please try to do hard reset or master format after doing backup for all important data.

      Reply
    • Hi, are you ever try to download other 3th party launcher from Google Play Store, please try to uninstall other 3th prarty launcher and continue with reboot. If the problem still happen, then you need to do hard reset or master format from Setting Menu if you can. However, if you still can not access the setting menu, then you have to do hard reset using hardware button.

      Reply
    • Hi, please try to find text that have eMMC, then choose this options to finish the hard reset using hardware button. However, if your phone still can access the setting menu, then better using Setting Menu to do hard reset or master format at your Lenovo A850.

      Reply
  5. HI 🙂 . I downloaded an app and i had to reboot my lenovo a850.. then when i turned it back on it got stuck on the lenovo -for those who do- logo image..I took out the battery and tried again but still. I even followed those steps to hard resetting your phone . the reset worked but still stuck on the logo screen.. Help pls 😀

    Reply
    • Hi, basically doing hard reset is also reinstall clean factory default Android operating system to your Lenovo A850, however if your phone still got the after doing reinstall, then it might be problem with the hardware. Please try again one more time to reinstall the operating system using hardware button, but if the problem still happen, then you need to bring it to Lenovo service center for further help.

      Reply
  6. i used flash tool to try to unsoft brick my lenovo a850 by installing a official lenovo a850 update,on flash tool when update finished it showed green ring(circle)then when i tried to turn it on it didnt turn on,nothing works even the screen wont turn on at all,it was only 2 days old,can it be fixed?

    Reply
    • Hi, unfortunately we never try to use Flash Tool for re-flashing Lenovo A850 firmware. However, if you have success doing that but the phone still can not turn on, then maybe you need to make sure the phone is not at hard bricks conditions. Please also try to make sure you are using the right firmware version for your Lenovo A850.

      Reply
    • Hi, the basic steps to hard reset or reformat Lenovo A850 can be use from setting menu if you still can access that. Go to Setting > Backup & Reset > Factory Data Reset. If you can not access that setting menu or the operating system has damaged, then you need to hard reset using hardware button key like steps above. Please do it several time carefully, because sometime the hardware button reset can not run in some conditions.

      Reply
      • its in chinese characters..how will i now which one is “reset device” or “wipe data” 🙁

        pls help.. thanks

        Reply
        • Hi, first you can try to use Google Translate from different Android smartphone. Otherwise, you have to fine word with “emmc” among the Chinese language at recovery mode, then choose that menu.

          Reply
  7. Hi. I have this lenovo a850 for months now and i decided to do some cleaning. So i plugged in my phone to my laptop to save all the files that i need and deleted all the stuff in my sd card. After which i tried resetting to factory settings. When i turned it on, it just stayed on the logo and i never got into the home screen. I tried doing a hard reset as well using the power and volume up button and it says my phone is already in factory mode, which is good. Though i still cant get to my home screen. ;( Have i done something wrong or should i just waste for hours?

    Reply
    • Hi, usually this problem comes at Rooted Lenovo A850 or some other phone which using Custom ROM. Unfortunately we can not give standard advice for rooted or custom rom problems. However, if you are sure that your phone still at standard operating system, then it might get problems at the file source of operating system / firmware at your phone. You should consult with Lenovo authorize service center for further help.

      Reply
  8. hi sir, i bought a new a850+ from China, my provlem is the phone is SIM LOCK and apps-language is in Chinese. I tried to use Framaroot to roo the phone but failed. any advice pls. thanx

    Reply
    • Hi, unfortunately we does not have solutions for sim lock because usually it is about GSM protection from bundling provider. Maybe other community member or someone else will help you if they help the same problem with you.

      Reply
  9. Hi. I just bought my lenovo A850 about a month ago but now the screen flickers,jitters and it has an overlay display. I dont know how to fix it. Help me!!!

    Reply
    • Hi, first you have to make sure the screen flicker come from hardware or software. The easy steps to do is try to do reboot and if you still can see LENOVO logo without problem when your Lenovo A850 restart, then it seems the problems come with applications, and you have to do hard reset to remove all installed applications which can make this problem. You can use setting menu to hard reset if still can go there, or use hardware button key.

      Reply
    • Hi, Safe Box is an applications to keep secure our data and login account. Usually every internet user have some password for some applications or internet account, some users have problem about forgot password for some account, that is why sometime we need an applications to safe our username and password and SAFE BOX is work for safe many username and password for various account. This SAFE BOX applications have some other functions like to secure our files by encrypt selected data.

      Reply
    • Hi, unfortunately we can said that it almost imposible to recover or undelete the deleted files from internal memory at your Lenovo A850, because when doing hard reset, the system will reinstall the clean factory default Android operating system, which is also install some factory default applications, that’s why your internal memory will replace with new files that make your old deleted files can not recovery anymore.

      Reply
    • Hi, please remove the battery and wait about 5 seconds, after that plug again the battery at your Lenovo A850. Press power button to turn on your phone again. After run several minutes, try to turn off your phone agian, hopefully that factory mode does not appear anymore.

      Reply
  10. Sir , i have lost all memory during factory reset . so i want to know how to recover lost memory of aneroid LENOVO S 850 mobile.

    Reply
    • Hi, basically the undelete or recovery data at Internet memory can not be done, maybe some applications at Google Play Store give info that they can recovery it, but as far as we know, the Internal memory will be wipe and reinstall (rewrite) with clean factory default operating system, that is why some data sector in the internal memory will be replace with new one, then we can not recovery it anymore. Unless you mean the data at External memory if by accident also wipe, then you can try to recover using 3th party application or remove the SD card and use memory card reader with your computer. You can try use Recuva or similar applications to recover deleted files at external microSD.

      Reply
  11. I would like to start by saying that your customer service representatives here in the Philippines are good. It’s just that I cant stay on the line for so long.
    I have posted this issue last October 4. No, my phone is not rooted or custom rom. I’ve been having this problem for over a month now. I have problems with my phone that time thus i decided to do a factory reset. The reason perhaps that i wasnt able to go to the homescreen is that all launchers(even the lenovo launcher) is gone. Also the keypad is gone. So all i did was to go to settings/apps/all/chrome then downloaded an android keyboard apk. (I have to use the voice input to type words). Same with a launcher apk. So, yes i finally was able to get my phone working again. BUT, i cant get in to google play store, it says no connection, phone says google stops, hangouts stops, gapps whatever stops..anything related to it..searched online and everything still results to a factory reset which i have done(believe me) more than 30 times now. I even tried downloading apps from aptoide instead just to get all the apps i need to no good..most apps dont work with my data service but only works on wifi. Location services are also not working..lenovo center here is a plane away and it would cost more than what this phone costs..if you could just give me ways on how to fix this, i surely could follow.. thanks a lot!

    Reply
    • Hi, please make sure your free internal memory are more then 300 MB, otherwise you phone will said memory full when you want to update or install some applications. All applications will need free internal memory to install the applications, although we still have lot of free external memory or SDCARD external.

      Reply
  12. Hi! I’ve been having trouble wth my a850. everything just crashes. I get the message: “Unfotunately, **** had just stopped.” At first it was just the Lenovo Power that usually stops o Facebook when it crashes but this time all of my apps, as well as my system (settings;device manage,calendar,lenovo launcher,etc stops)

    i did all different steps to reset my phone. (settings and the power volume up button) it says wiping data complete but when i restart it, it’s still the same thing. im back to my previous settings on my phone and then all apps just starts crashing. PLEASE HELP.

    Reply
    • Hi, at some situations, the hard reset or reformat will not solve the problems. There are some possibility, first because your phone has been rooted or use custom ROM or have some not standard tweak. Second possibility because your hardware get some trouble. However, please consult this problems at nearest Lenovo authorize service center.

      Reply
  13. hi i have big problem with this mobile from China

    i have buy it for my fater he has used it for 2 *****s but now when someone calls him :

    the mobile is working OK , soud is good, songs are good, when you turn it on you hear the sound

    but when someone call you youd dont hear nothing – until you click on icone sound on display after that you hear the other person also he or she hear you

    but why. what can be wrong.

    I have made soft reset also factory reset but still not working

    any help ?

    Reply
    • Hi, maybe your Lenovo A850 speaker phone hardware at above of LCD get trouble, so you can not hear from it, but it work when you reroute the voice from main speaker (which usually use for play music or other sound). Please check your speaker hardware to nearest Lenovo service center.

      Reply
  14. Hay my screen flickering.. What to do .when the temperature is cold it flickering and when it is in hot temperature it will never .what’s the pproblem.

    Reply
    • Hi, well it seem the problems comes from the hardware. However, you can try to do hard reset while the LCD screen start flickering to make sure the problems come from LCD or not. Usually if the problems comes from the hardware, then you will find the flicker LCD start at Logo startup (when you get flicker at cold temp).

      Reply
  15. I bought a Lenovo S850 from China and after one or two months of working my antivirus change automatically changed in chinese. This wasn’t a problem until today when I found the I have viruses on facebook and I think I have it from my phone. May I unistall my antivirus and then to install an avast antivirus. I don’t want to broke my phone. Thank you!

    Reply
    • Hi, yes you can try to uninstall non factory default application from Setting Menu > Apps, and find which antivirus that you want to uninstall, but if that apps come from factory default then that apps can not uninstall easily. However, if you still can not solve the antivirus problems, can please consider doing hard reset your Lenovo A850 and hopefully everything back to normal again.

      Reply
  16. hi sir. can you help me how to recover my lenovo a850 phone? im having trouble in turning on my phone. i turned it on but it just stop in the black form

    when i turned on my phone it just stop in “Lenovo® FOR THOSE WHO DO.”

    i waited for 5 to 10 minutes but still nothing happened.

    Reply
    • Hi, please try to hard reset your Lenovo A850 using hardware button combination key. If your phone get hard bricks, then you have to get help from Lenovo authorize service center.

      Reply
  17. good day, need help with my A850 – i can’t seem to disable my airplane mode. it keeps getting forced back to airplane mode even with SIM card inserted, even with 2 SIMs in the slots also has same issue. Please help, thanks!

    Reply
    • Hi, please try to find maybe there are some applications that can make airplace mode on, uninstall that applications. If you can not find that apps, then consider to do hard reset your Lenovo A850. Please do not forget to backup all important data before doing hard reset or master format.

      Reply
    • Hi, please try to delete data and caches only for Google Play Store apps at your Lenovo A850, goto menu Setting > Apps > All > find and choose Google Play Store apps, then press Remove data and caches button. After that try to run again Google Play Store, it should be run normally again.

      Reply
  18. sir i have a problem..i have lenovo a850+ and do not work the touch buttons at the bottom of my mobile what to do to please.did completely suddenly is it from virus nothing else.

    Reply
    • Hi, it can be happen because of applications trouble or maybe because of malware or virus as well. Therefore you should try to hard reset or master format to factory default using hardware button combination key above. But please note, this hard reset process will remove any important data from your phone.

      Reply
  19. I have lenovo s850+ and processed emmc clear but see logo screen 30 minutes so how long i wait foolish phone ? Thank you.

    Reply
    • Hi, at normal situations the process time for doing hard reset Lenovo S850 will less then 10 minutes. If you wait more that than maybe some trouble happen at your phone. Please consider to do it again one more time. Hopefully your phone not get stuck after that.

      Reply
  20. I have from my tab from china. I unable use the apps language is in Chinese. I have change the language into English in setting. There is no play store.

    Reply
    • Hi, you are right, Lenovo A850 which release for China will not have Google Play Store. However, you can use factory default apps store at this tablet to download several interesting apps. You can also install some 3th party applications store such as SlideMe or something like that.

      Reply
  21. Hi. I’m using secondhand lenovo a850. So, there is a problem with my safebox. I didnt now what is the unlock key. Can you help me about that??

    Reply
    • Hi, if your Safebox applications is not keeping your own data, then you can try to clean data and cache of your Lenovo A850 using menu Setting > Apps > Downloaded and find safebox apps. After you choose Safebox apps, then you can press Clear data & Clear cache button. After that you can use Safebox from beginning without secret key anymore.

      Reply
    • Hi, please try to use other different working GSM simcard to your Lenovo A850. Make sure your phone are not at flight mode, because all network and GSM connection will be disable while flight mode active. If you still get this problems, then you have to try doing hard reset or master format Lenovo A850 to factory default.

      Reply
  22. Sir, i have problem on my lenovo a850 camera everytime i open it. can’t conect to camera..why is like that? Can you help me to fix this problem..??

    Reply
    • Hi, please try to download 3th party camera applications from Google Play Store like Camera 360 or Google Camera or Open Camera. This applications will try to use your Lenovo A850 camera hardware to run, usually it will work again if the problem comes from your default camera applications. If your camera still not work with any free 3th party recommended camera applications, then please do hard reset and try again your camera.

      Reply
  23. Hi . When my phone ring on the sreen write “dont cover the top of screen” and i can not to do nothing … whats the problem?

    Reply
    • Hi, this problems usually happen because your Lenovo A850 setting for stop automatically call to specific number without any notification. Please change the setting at menu Setting > Display > Prevent pocket-dials

      Reply
  24. I just bought a Lenovo s850. The screen just above the home key is getting brown. is it possibly LCD? what do I do to resolve this?

    Reply
    • Hi, you can download LCD screen test free applications from Google Play Store, this apps will show some color at your LCD screen, and you have to make sure the color is shown right, blue is blue, green is green, red is red and more. If you can not see the right color at screen test, then maybe you need to test doing hard reset and test your LCD screen again.

      Reply
    • Hi, unfortunately we can not give good answer for rooted Lenovo A850, because there maybe some non standard couses might happen at your phone. However, please try to do hard reset to reformat to factory default.

      Reply
  25. Hi there..i cant download anything from google play..Error retrieving information from server [RPC:S-7:AEC-0] will apprear..try to find solution by myself but still cant solve..

    Reply
    • Hi, you can try to delete data or caches of Google Play Store from menu Setting > Apps > Play Store, press Delete data and Delete cache button, after that restart your Lenovo A850 and try to run agian Google Play Store. If this problems still happen, then you have to do hard reset to reformat with clean factory default operating system.

      Reply
  26. Each time I open an online APP My Lenovo A850 keeps popping up a picture of people holding hands, with something written in what looks like Arabic.

    How do I stop this from happening

    How can I safely uninstall APUS or ZERO?
    Do they come as part of the pre-installed APPs

    Reply
    • Hi, we are not sure why this problems happen, but usually this is because of applications like browser or something else. You can try to download different browser like Google Chrome or Mozilla Firefox which is run good at Android. If this problem still happen, then please try to do hard reset to reformat and restore all applications to factory default, then try to use online apps again from your Lenovo A850.

      Please note, at normal standard situations, we can not uninstall or remove preinstalled applications, this apps still there after doing hard reset as well.

      Reply
  27. my friend use Lenovo a850.Yesterday aplication setting was missing.
    i format and factory reset the phone.The phone is okay but aplication setting still missing and it tell the apss is not installed.
    What should i do?

    Reply
    • Hi, if you have done factory default or hard reset, all menu at operating system will be back to factory default and you can find Setting menu. However, you can try to find setting menu from Notification bar, please try to drop down notification bar and try to find Setting menu near clock or date.

      Reply
  28. I try to activate my LeSafe, I put phone number for mobile tracking. the system tells me the phone number is wrong format. which phone is the right format?

    Reply
    • Hi, sorry we never use LeSafe, but we suggest you to contact LeSafe developer for get best answer for your help at your Lenovo A850.

      Reply
  29. Sir, i’ve done the factory reset after the device botherd me with messages …….lenovo launcher, google play, etc has stopped. After the hard reset done, and when the fon is on, I then notice discrepencies with the hardware. the home key button and the browser are not functioning…no more pop messages from facebook or whatsapp, I can make calls but no incoming calls .. so, what shall I do?? Please help ..tq!

    Reply
    • Hi, normally doing hard reset will reformat your Lenovo A850 to clean factory default Android operating system. If some other problems happen more after doing master format, then maybe your hardware get trouble before, or you use not standard official rom (custom rom). Please consult this problems to Lenovo authorize service center.

      Reply
  30. Hello,
    I really need your help; i left my Lenovo A850 phone to charge yesterday then i went for a meeting. When i came back i found it off. I tried to press the power button but nothing, i have tried to remove the battery over 3 times still nothing. I tried pressing the power button together with volume up for at least one minute but still nothing. The phone was working perfectly fine, it had enough memory in it, i didnt flash it; i really dont know what is going on or what to do…its just one week old so i dont know what could be.
    I have tried charging or plugging in to a PC but nothing is coming up, not even the red light.
    Please help me, i will really appreciate your help because i realy love this phone alot and i dont want it to disappoint me.

    Reply
    • Hi, maybe because of some over charge or trouble when charging, your Lenovo A850 get trouble and make the hardware become corrupt or damage. Because your phone not give any response although you charge using power Adapter or using USB cable. So you need to chek the hardware at Lenovo authorize service center for make it sure.

      Reply
    • Hi, please try to turn off your Lenovo A850+, then press that button again Power Button then continue press together Volume Up + Volume Down. If nothing happen, then maybe your hardware button get trouble and need to get repair at Lenovo authorized service center.

      Reply
  31. Hi Sir, I use my Lenovo A 850 from April 2014 without any problem but on 3 May 2015 my phone automatically switch off I tried to switch on my phone by power button & battery reinstallation but can’t succeeded after that i removed my SIM ( having data pack) and replace my friend SIM (no data pack) after carbon cleaning on battery poles & reinstallation my phone again started & showing new SIM with network then I removed my friend SIM & replace with my SIM & restarted again phone started but showing no network then i repted same process with slot 2 & result was same & repted same process with other SIMs( having data pack ) but non was detected even after factory reset. I checked my SIM in other phones & it is working normal , Sir please give me solution.

    Reply
  32. hi,i have a problem with my lenovo a850, i’ve rooted my phone and delete some apps,after that my phone will stuck at lenovo logo every time i reboot my phone. then i try to hard reset and its succesful ,but if i reboot ,it will stuck again,mean i have to hard reset my phone every time i reboot or my battery empty,please help

    Reply
    • Hi, we are sorry because we can not give good advice for rooted or custom ROM tweak for Lenovo A850, because there are several non standard possibilities that can happen. Moreover, with root operating system we can by accident erase some important system files.

      Reply
  33. hye i have lenovo a850. the problem is my phone can’t detect my sim card. both of it. when i try my sim card to another phone it ok. i try another sim card to the lenovo it also can’t detect…can u help me?

    Reply
    • Hi, better you try to hard reset your Lenovo A850, if after reformat the can not detect simcard problems still happen, then maybe your Lenovo A850 get hardware problems and need to get repair at Lenovo authorize service center.

      Reply
  34. Slot 1: No sim card detected
    slot 2: No sim card detected

    Both slots are inserted with legal sim cards In the setting section “Data Connection” is grey . . . Any help?

    Reply
    • Hi, have you ever try to do hard reset or reformat to factory default, some problems solved after doing hard reset, because maybe some applications make the operating system damaged.

      Reply
  35. I have a lenovo a850 smartphone. It was working smoothly. But yesterday at a sudden it turned off and when connected to the charger there is no indication light (red). What is the reason for that? What is to be done to make the phone on?

    Reply
    • Hi, please try to use different Android charger with minimum 1 A current output and wait about 1 hour, this steps just to make sure your default Lenovo A850 power charger work properly. If nothing happen event no charger indicator show, then your Lenovo A850 might get hard bricks and can not fix with steps at this information page. You have to do hardware check at Lenovo authorize service center.

      Reply
  36. Sir ,
    When i connect my phone with pc than show me USB not recognizance.I cant flash my phone and my phone are not open .mybe my phone are brick .what can i do .please help me……

    Reply
    • Hi, if you get trouble when flashing your Lenovo A850 using PC which we also not recommended to do that, then please consult with Lenovo authorize service center.

      Reply
    • Hi, please try to use different GSM simcard at your Lenovo A850, if this problems comes from your sim card, then it will work again. If this problems still not work properly, then you can try to do hard reset or master format to reinstall factory default setting and operating system.

      Reply
  37. Hello,

    My phone is Lenovo A850. My problem is when I turn it on it take only several seconds then it automatically turn off. I try to charge the phone and it says 99% in battery status, Then turn it on again but still get the same problem.

    btw I already re-format the phone and already performed system update.
    what gives me puzzle why it automatically turn off.

    Please advice.

    Thanks,
    Eugene

    Reply
    • Hi, we suspect the problems come from battery, maybe your battery is damage, so it can not keep the battery capacity carefully although at phone status battery indicator said still 99%. Please consult with Lenovo authorize service center.

      Reply

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