How to reset or factory restore a Acer Liquid Gallant Duo device?
To reset or factory restore an Acer Liquid Gallant Duo device, you will need to perform a few steps. Here are the most common and recommended ways to do this:
Method 1: Using a Computer
1. Connect the Acer Liquid Gallant Duo to your computer using a USB cable.
2. Install the Acer Liquid Manager software on your computer.
3. Open the Acer Liquid Manager software on your computer.
4. Click on the "Backup & Recovery" tab on the top of the screen.
5. Click on the "Create Backup" button.
6. Select where you want to save the backup file on your computer.
7. Click on the "Create Backup" button to start the backup process.
8. Once the backup is complete, disconnect the Acer Liquid Gallant Duo from the computer.
9. Press and hold the Volume Down button and the Power button simultaneously.
10. Release the buttons when the Acer logo appears on the screen.
11. Press the Volume Down button until "MUH02" appears on the screen.
12. Press the Volume Up button until "BOOTLOADER" appears on the screen.
13. Press and hold the Volume Down button and the Power button simultaneously.
14. Release the buttons and wait for the phone to reboot.
15. Select "Partition Sector" and choose the first option.
16. Select "Pixel Mode" and choose the first option.
17. Select "Resume Boot" and choose the first option.
18. Wait for the phone to restart.
19. Connect the phone to the computer using a USB cable.
20. Open the Acer Liquid Manager software on your computer.
21. Click on the "Restore from Backup" tab on the top of the screen.
22. Select the backup file you created earlier.
23. Click on the "Create" button to start the restore process.
24. Wait for the phone to restart again.
Method 2: Using the Bootloader
1. Press and hold the Volume Down button and the Power button simultaneously.
2. Release the buttons when the Acer logo appears on the screen.
3. Press the Volume Down button until "MUH02" appears on the screen.
4. Press the Volume Up button until "BOOTLOADER" appears on the screen.
5. Press and hold the Volume Down button and the Power button simultaneously.
6. Release the buttons and wait for the phone to reboot.
7. Connect the phone to the computer using a USB cable.
8. Open the Acer Backup software on your computer.
9. Click on "More Tools" and select "Internal Storage".
10. Click on "Erase" to delete all files and data on the device.
11. After the deletion is complete, repeat steps 5 to 9 to create a new backup of your phone data and store it on a computer.
12. Once you've created a new backup, disconnect the device from the computer.
13. Press and hold the Volume Down button and the Power button simultaneously.
14. Release the buttons and wait for the phone to reboot.
15. When prompted, select "Install from SD Card" and choose the backup file you created earlier.
16. Wait for the phone to restart again.
Note: Before resetting or factory restoring your Acer Liquid Gallant Duo device, make sure to backup all of your data to an external source to avoid losing your files and settings.