Tips and tricks to fix OPPO A77 problems. We can 5.5 inches LCD screen width with Full HD resolutions. Like other OPPO smartphone, OPPO A77 also have dual simcard which can standby together. The maximum broadband data is 4G LTE. The internal memory is big enough to install many interesting applications, and 4 GB RAM will enough for some important multitasking features at this phone. For anybody who love to have good selfie photography, then OPPO A77 with 16 MP front camera will fulfill what we need. The community of will give more information about how to solve some trouble at OPPO A77.


What is Advantage of OPPO A77 Specifications?

Network GSM 3G HSDPA or with 4G LTE Dual SIMCARD
LCD 5.5 inches
Octa-core 1.5 GHz Cortex-A53
Bluetooth / GPS / Wifi / Fingerprint
Memory Internal 64 GB with 4 GB RAM
External memory 256 GB microSD share with simcard 2 slot
Camera 13 MP, f/2.2, phase detection autofocus, LED flash for OPPO F3 PLUS
Front Camera 16 MP , f/2.0 for selfie photography and video conference
Operating System Android Marshmallow version 6.0
Battery Li-Ion 3200 mAh for OPPO F3



#Option 1, Hard Reset OPPO A77 with software menu

  1. Turn on the OPPO A77
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A77 because all data and applications will be erase or delete
  4. Go to Menu :  Setting 
  5. Choose Tab : General
  6. Press Backup & Reset > Restore factory setting
  7. Better you not check anything at the option if you do not want to erase data at data partition at internal memory
  8. Choose Reset phone 
  9. The OPPO A77 will do the master reset process.


#Option 2, Hard Reset OPPO A77 Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A77 can not turn on or hang or stuck or frozen so we can not access the menu setting or nothing happen while touch the screen, then try to factory reset with secret button and hardware key

  1. Turn off the OPPO A77
  2. Make sure the battery OPPO A77 already full or more than 50%
  3. Press together and hold the Power Button + Volume Down Button
  4. If the Logo appear, then release the button, after that we will enter some menu
  5. Choose wipe data / factory reset using Volume Button, and press Power Button to Enter or OK
  6. The OPPO A77 will continue master reset, wait for several minutes until OPPO A77 start like new again.


How to Make Battery of OPPO A77 Stronger, Life Longer and Not Fast to Drain ?

Every users need to have good battery life for their smartphone. We have to know that OPPO A77 use 3200 mAh battery capacity to make it run for one day without recharge. But some users maybe need more then this capacity because they are heavy users to watch full movie or playing games several hours. We have to do some adjustment. LCD screen is the most battery drain. Therefore when we turn on LCD screen, it will use battery so much. Please adjust LCD screen brightness as low as possible.