The screen on my Oneplus One w Cyanogen 12 was dimmed by TALKBACK app and will not return to normal brightness.
A few days ago I accidentally started TALKBACK through the accessibility shortcut.
I think the shortcut is a few power button presses and then touching the screen with 2 fingers.
So in my diztronic rubber case the power button can be difficult to engage, so in trying to turn the screen off I must have reached the correct combination of presses and then putting the phone in my pocket it registered the shortcut. [Really bad idea for a shortcut, how do I disable that shortcut?]
So the problem is the option checkbox was selected to "dim the screen when talkback is active". This feature has a built in 3 minute warning and a way to undo the selection. I think it is 3 presses of Up + Down volume buttons together.
I didn't see the warning and instructions in time and the screen was dimmed very dark, almost completely blacked out.
The screen is dimmed to probably 95% by this setting, and appears completely black in any normal light setting. Only in a very dark room with a flashlight directly into the screen can anything be seen.
I used the backlight settings to adjust screen brightness to max setting between 0 - 255, and I can see it makes a slight difference in adjusting the dimmness level. Phone functions normally except it's unusable because of the dim screen.
I tried a factory reset. Screen stays dim.
I tried another factory reset while Talkback was on and it stayed on, and screen stayed dim.
I have contacted Oneplus support and installed their Oxygen OS. Screen says dim.
How is this app able to dim the screen across resets and complete OS wipes?
Whatever variable TALKBACK used to dim the screen I need a way to undo it, as the app did not clear it.
Any ideas?
A few days ago I accidentally started TALKBACK through the accessibility shortcut.
I think the shortcut is a few power button presses and then touching the screen with 2 fingers.
So in my diztronic rubber case the power button can be difficult to engage, so in trying to turn the screen off I must have reached the correct combination of presses and then putting the phone in my pocket it registered the shortcut. [Really bad idea for a shortcut, how do I disable that shortcut?]
So the problem is the option checkbox was selected to "dim the screen when talkback is active". This feature has a built in 3 minute warning and a way to undo the selection. I think it is 3 presses of Up + Down volume buttons together.
I didn't see the warning and instructions in time and the screen was dimmed very dark, almost completely blacked out.
The screen is dimmed to probably 95% by this setting, and appears completely black in any normal light setting. Only in a very dark room with a flashlight directly into the screen can anything be seen.
I used the backlight settings to adjust screen brightness to max setting between 0 - 255, and I can see it makes a slight difference in adjusting the dimmness level. Phone functions normally except it's unusable because of the dim screen.
I tried a factory reset. Screen stays dim.
I tried another factory reset while Talkback was on and it stayed on, and screen stayed dim.
I have contacted Oneplus support and installed their Oxygen OS. Screen says dim.
How is this app able to dim the screen across resets and complete OS wipes?
Whatever variable TALKBACK used to dim the screen I need a way to undo it, as the app did not clear it.
Any ideas?
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