How to upgrade the touchscreen firmware?
1) Download the newest version of touchscreen firmware on:
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.
❗Warning: Do not power off the touchscreen during upgrading!
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
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