Here is an instruction of performing hard reset & soft reset & wipe cache partition. Please try to perform soft reset and wipe cache partition first before performing hard reset. Some problems are solved by performing soft reset. Before starting to perform hard reset, please check the following things:
- Make sure that your battery is fully charged.
- Back up your phone because hard resetting erases all of your data and personal settings.
SOFT RESET
Step 01. Press and Hold Down Power button for about 5 – 10 seconds until the phone shuts down and reboots.
HARD RESET
Step 01. Make sure your phone is turned off completely.
Step 02. Press and hold Volume Down + Power buttons until the boot option menu appears on the screen.
Step 03. Navigate to Recovery option using volume down button and select it with the power key.
Step 04. When the Android robot comes up on the screen, Press and Hold Volume Up + Power buttons until the Android system recovery mode appears.
Step 05. In the Android system recovery mode, select wipe data/factory reset.
Step 06. It will ask you to confirm. Select Yes — delete all user data
Step 07. After the process is done, select reboot system now.
WIPE CACHE PARTITION
Step 01. Make sure that your phone is turned off completely.
Step 02. Press and hold Volume Down + Power buttons until the boot option menu appears on the screen.
Step 03. Navigate to Recovery option using volume down button and select it with the power key.
Step 04. When the Android robot comes up on the screen, Press and Hold Volume Up button and press the Power button while holding down volume up button.
Step 05. Soon Android System Recovery Mode will appears on the screen. Select wipe cache partition.
Step 06. After the process is done, select reboot system now.