Download the V3lkjh exploit from [this XDA thread] and extract it to your computer.
Enable USB debugging on your device by going to Settings > Developer options > USB debugging.
Connect your device to your computer via USB cable and make sure the drivers are installed.
Open a command prompt window on your computer and navigate to the folder where you extracted the V3lkjh exploit.
Type the following command and press Enter: simple.bat
Your device will reboot after opening the command prompt. Then you will see two icons. Select the unlocked lock by pressing Volume Down key. Then confirm it by pressing Volume Up key.
Your device will reboot again and you will see a message saying that your device is rooted.
Congratulations! You have successfully rooted your Acer Iconia Tab A200 with V3lkjh exploit. You can now enjoy the benefits of rooting, such as installing custom ROMs, kernels, apps, and more.
Troubleshooting
If you encounter any problems while rooting your device, you can try the following solutions:
Make sure you have downloaded the correct version of the V3lkjh exploit for your device's firmware. You can check your firmware version by going to Settings > About tablet > Build number.
Make sure you have enabled USB debugging on your device and installed the drivers on your computer.
Make sure you have extracted the V3lkjh exploit file to a folder on your computer and not on your device's storage.
Make sure you have followed the instructions carefully and typed the command correctly.
If all else fails, you can restore your device to its original state by flashing the stock firmware using Acer Recovery Installer app, which you can download from [here].
Disclaimer
Rooting your device may void your warranty and may cause damage or loss of data. We are not responsible for any consequences that may arise from rooting your device. Proceed at your own risk.
524038ac18