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How to Fix Bootloop Problem on Android Tablet A20 GT90x v4
If you have an Android tablet with the model number A20 GT90x v4, you may encounter a bootloop problem where the device gets stuck on the logo screen and does not boot up. This can be caused by various reasons, such as a corrupted system file, a faulty app, or a bad update. Fortunately, there are some ways to fix this problem and restore your tablet to normal.
One of the methods is to perform a hard reset using your PC. This will erase all your data and settings on the tablet and reinstall the original firmware. However, this requires that your PC can recognize the tablet when you connect it with a USB cable. If your PC does not detect the tablet, you may need to install the proper drivers first. You can find the drivers and the firmware for your tablet on this website[^1^]. Follow these steps to perform a hard reset:
Download the drivers and the firmware for your tablet from the website[^1^] and extract them to a folder on your PC.
Turn off your tablet and press and hold the volume down and power buttons simultaneously until you see a green Android logo on the screen.
Connect your tablet to your PC with a USB cable. Your PC should recognize the tablet as an unknown device.
Open Device Manager on your PC and find the unknown device under Other devices. Right-click on it and select Update driver software.
Browse to the folder where you extracted the drivers and select them. Wait for the drivers to install.
Open PhoenixSuit.exe from the folder where you extracted the firmware. Click on Firmware tab and select Image button.
Browse to the folder where you extracted the firmware and select 9inch A20 PH GT90X.img file. Click on Open.
Click on Upgrade button and wait for the process to complete. Do not disconnect your tablet or turn off your PC during this process.
When the process is done, your tablet will reboot automatically. You may need to set up your tablet again as if it was new.
This method should fix the bootloop problem on your tablet and restore it to its original state. However, if this method does not work or you do not want to lose your data, you can try another method that involves flashing a custom recovery and wiping cache partition. This method does not require a PC, but it requires that you have a microSD card with at least 2 GB of free space. You can find the custom recovery and instructions for this method on this website[^2^]. Follow these steps to flash a custom recovery and wipe cache partition:
Download CWM Recovery for A20 GT90x v4 from the website[^2^] and copy it to your microSD card. Rename it as recovery.img.
Turn off your tablet and insert the microSD card into it.
Press and hold the volume up and power buttons simultaneously until you see a blue Android logo on the screen.
Use the volume buttons to navigate and the power button to select in the recovery menu. Select install zip from sdcard option.
Select choose zip from sdcard option and browse to the recovery.img file on your microSD card. Select it and confirm by selecting Yes.
Wait for the recovery image to flash. When it is done, go back to the main menu and select reboot system now option.
Your tablet will reboot into CWM Recovery mode. Select wipe cache partition option and confirm by selecting Yes.
When it is done, go back to the main menu and select reboot system now option again.
Your tablet will reboot normally. The bootloop problem should be fixed now.
This method should fix the bootloop problem on your tablet without erasing your data. However, if this method also does not work or you encounter other problems with your tablet, you may need to contact the manufacturer or a professional service center for further assistance. 061ffe29dd