Hye
When I put the brightness of my Umi Z on the lowest, and I enable the battery saving mode, the screen gos very dark.
But sometimes the screen is flashing. Is this normal?? You can see it very good on white backgrounds.
Automatic screen brightness is turned off.
I flashed the software in firmware upgrade mode, and it did format the phone, but I still have the problem...
So when the bightness is on the lowest, nothing happens. But when I enable the battery saving mode so the screen will go even darker, then I have the screen flashes.
When I increas the brightness, it go's away.
Unfortunately I can't confirm this fault on my testing device on latest firmware.
I suspecting battery fault (voltage is fluctuating and system can't stabilise voltage coming to background light) or screen fault.
You can talk about this case with your seller or deactivate battery saving mode.