He posted a short note on the forum: Updated to v1.12. Temp control much better. No issues. Replies came back fast—one person asked what cable he used, another offered a troubleshooting tip. A handful congratulated him, as if firmware were a rite of passage.

Before attempting an update, verify which software version your device is currently running:

: Turn your device off by pressing the Fire button five times. Once off, press and hold the "+" and "-" buttons simultaneously for a few seconds. The screen will display your current firmware version.

The screen will display the version number, such as GV20200918 V10 . Troubleshooting Without an Update