I am demoing a Zebra VC8300/VC83x that shipped with Android 11. I can't say it's going as well as any previous new device.
I've used StageNow to generate barcodes and xml files to adjust screen time outs, wifi preferences etc and NOTHING is changing.
If I send this legacyt script things do change immediately - do I need to migrate EVERYTHING to writesecuresetting on Android11 or is this device just acting up. To match the fun, if I type the wifi password wrong during initial setup, it boot loops for almost 3 hours before it recovers itself - so it's possible the OS build on this device is just not right - and there are no updates available for it since May 2021.
Here is what is working so far.
writesecuresetting -sys SCREEN_BRIGHTNESS_MODE_MANUAL 1
writesecuresetting -sys SCREEN_BRIGHTNESS 255
writesecuresetting -sys screen_off_timeout 1800000