Easy solutions for fix slow issues on SAMSUNG GALAXY A21S troubles. This phone work with Android 10 when the first time open from the box. Everything running fast without any problems. But after we install more applications and use it for several months, some users get lagging problems with their phone. We will give some tips and tricks to make SAMSUNG GALAXY A21S run more faster.

Why SAMSUNG GALAXY A21S Performance Become Slow and Not Responsive ?

The first feature which give big impact for slowly or fast performance is processor. This phone work with 64 bit processor Exynos 850 that has excellent performance for energy consumption, because it is use 8 nm FinFET technology. The processor work with 2 segments for different applications load. When we run for simple applications such as reading some news then the processor will work with quad core 2.0 GHz Cortex-A55. When we need to use heavy and faster applications then this phone will work with quad core 2.0 GHz Cortex-A55 & 4x.


RAM also very important for make smartphone run faster or slower. This phone has two options with 2 GB or 3 GB or 4 GB or 6 GB RAM. The smallest 2 GB RAM will easily getting lagging. Why, because the memory is too small for running multitasking apps. Please make sure our RAM is not insufficient. If this phone does not have enough free RAM, then some applications should force to close for give more free RAM, this process will make SAMSUNG GALAXY A21S become lagging for a while.

Usually the slow performance happen because of too much applications running in the background like chatting, social media, games and some other more. They will standby in the background to wait data update and wait some command. If many of applications run in the background together, then SAMSUNG GALAXY A21S RAM and processor resources will be insufficient.


solution to fix lagging problems on samsung galaxy a21s

How to Boost Speed Performance of SAMSUNG GALAXY A21S And Make It Run More Faster?

  1. First steps that you should do is doing soft reset or reboot to remove temporary files and caches. Usually after our phone finish reboot, then the speed performance might become faster.
  2. Please uninstall all not use applications. We can try to find from menu Setting > Apps, and choose not active applications, then choose Uninstall
  3. Some factory default applications do not have Uninstall button options, but we can disable by choose Disable button at menu Setting > Apps > Disable  at our phone. This steps also can reduce the usage of RAM and processor resources.
  4. If all solutions still not improve the performance, then please consider to do hard reset to factory default. Follow steps at SAMSUNG GALAXY A21S Hard Reset / Reformat page using hardware button combination Key.


Solutions For Slowly Gaming Performance On SAMSUNG GALAXY A21S

Please make sure that we install recommended games for SAMSUNG GALAXY A21S processor, GPU and RAM resources. This phone work with Exynos 850 processor with dedicated GPU Mali-G52 MC2. This GPU can not work well for heavy HD games, please make sure we only use it with standard gaming. However, if we have many applications run in the background, then many games will be run slowly or lagging. We have to make sure our SAMSUNG GALAXY A21S has enough storage and enough free RAM capacity.


Why Is SAMSUNG GALAXY A21S Speed Become Lagging After Upgrade?

This phone is preinstalled with Android 10. But after several months, the Android 11 is ready to download by OTA (over the air). Some users get slowly speed troubles or lagging after upgrade. What should we do? On most situations, performing upgrade will not make our SAMSUNG GALAXY A21S become slowly. But if this problem happen, then maybe there are some applications corrupt or not run properly with new version of the operating system. Therefore we suggest to backup all important data and do hard reset or reformat with new operating system. Please note, doing hard reset will not downgrade the operating system.


Please note, some menu options will be different because firmware update version or some other possibilities. Please use comment box bellow for other question to discuss.