How to upgrade the touchscreen firmware?

1) Download the newest version of touchscreen firmware on:

​https://www.rotrics.com/pages/download​

2) Unzip and copy those files to replace the files in SD card.

3) Insert the SD card to your touchscreen, connect to DexArm and power on.

Wait for 30s - 1min, the touchscreen will reboot after upgrading completed.

After upgrading, click Settings -> About to make sure the firmware has been upgraded to the newest version.

❗If the upgrade failed or the screen goes black, follow this instruction to fix it - https://manual.rotrics.com/troubleshooting/troubleshooting-accessories#1-how-to-fix-a-black-screen-after-upgrading-the-firmware​