Galaxy S2 brightness lowers by itself?.. - Galaxy S II Q&A, Help & Troubleshooting

Hi Annoying problem with my galaxy s 2, the brightness randomly lowers by itself. Say one time ill lock the screen with the lock button, unlock it 10 minutes later and the brightness has dropped and I'll have to put it back up again manually.
I've tried resets and firmware upgrades but that doesn't work.
I DO NOT HAVE automatic brightness on.
Any ideas?

you might accidentally use statusbar to lower brightness, I did that when i was using stock roms. keep you hand away from holding the statusbar

Oooo that might be it, I'll try avoid now I know it can happen and see if it happens again now.
Cheers

Related

[Q] brightness is stuck

i tried the star hash 0 star hash on dial pad, to bring up the test centre. I clicked on every box including dimmer and sleepmode to test it.
Now since then, every time i lock and unlock my phone, the brightness reverts back to some minumum setting. I can still change brightness when i long press the notification bar but it will always change back to the low setting. And i also cannot get into settings/display/brightness...its greyed out.
I have tried turning my phone on and off again
Help what did i do wrong
If your battery level is below 15% i think, the phone will disable the brightness control in the settings, greyed out, and will run at lowest brightness, until you charge the phone.
You can use the power control widget to adjust the brightness, but as soon as the phone goes to standby and you wake it up it will be back to minimum brightness again.
ok thanks, coincidence in timing when doing the lcd test and low battery..got me in a panic because I didn't have power saving mode enabled.
Yeah, it got me worried when it happened to me, as i was not using power saving as well, it`s a bit of a cheek to force low brightness when the battery is below 15% , the camera also does not work as well, great.

[Q] screen doesn't timeout after full charge

so when ever the tab is fully charged the screen turns on and wont go of until i click the lock button.
i don't have power savings mode. timeout is set to one min. and no auto adjust screen power. 3.2 stock rom
i cant find any settings to adjust this specifically so i don't know what this is. i just don't like the idea of the tab sitting for hours with screen on
EDIT: also noticed that if i put to charge screen wont go of, just fades after the 1 min timeout. i must manually turn it of. i.e push lock button
Hi.
I haven't noticed anything like that when I have been using stock Rom...
If you put tablet to charge did the big-clock screensaver shows up?
If so, you must press back on the bottom tab to let it go away and then it wil fade out and turn off the screen after timeout you have set up in settings...
The only time when screen goes on after charging and stay in that state is when charging with Tablet switched off {big battery charging indicator show up...}...
is it the lock screen your talking about, if so then yes. tab is put to charge and locked. then when full it makes a sound then shows lock screen and fades a bit after some time, but doesn't turn of. screen is of until fully charged. then turns on.
Hmm... this doesn't seems to be normal. On my tab, when fully charged it just make a sound and doesn't unlock or light up the screen...
Which country are you from and what ROM are you using? This might be an unwanted "feature" of branded ROM from some operator/provider...
Maybe if you are planning to Root and give your Tab some nice new ROM from here, your problems will be solved...
im planing on rooting as soon as CM9 is done. im in norway. we dont have operators/providers screwing up our phones like in the states.

Is this Android, App or Hardware

Hi Everyone,
So I noticed not to long back that my phone has been changing brightness without the brightness bar moving. For instance I unlocked my phone moments ago and my screen was very bright. I went into my brightness settings and looked at the bar was set at 60%. As soon as I touch the brightness bar the screen dims back down to where it's supposed to be.
Now I am thinking this is purely a software issue but I am still a little worried. I have a Galaxy S3 Optus AU. It is running the LF2 firmware and is not rooted or modified. I have turned off auto brightness and power saving for the screen and this problem still persists.
Has anyone else suffered any such issues with there device?
Amrut223 said:
Hi Everyone,
So I noticed not to long back that my phone has been changing brightness without the brightness bar moving. For instance I unlocked my phone moments ago and my screen was very bright. I went into my brightness settings and looked at the bar was set at 60%. As soon as I touch the brightness bar the screen dims back down to where it's supposed to be.
Now I am thinking this is purely a software issue but I am still a little worried. I have a Galaxy S3 Optus AU. It is running the LF2 firmware and is not rooted or modified. I have turned off auto brightness and power saving for the screen and this problem still persists.
Has anyone else suffered any such issues with there device?
Click to expand...
Click to collapse
check if u have activated the auto brightness
Auto Brightness was not on when this happened.
Amrut223 said:
Auto Brightness was not on when this happened.
Click to expand...
Click to collapse
sry my fault...read to quick
hmm the only thinng i can imagine on the go is...has been your battery been on a very low amount of percentage
because i think the power saving mode is changing the brightnes on its own
No the battery was at 90% when it happened last. I have factory reset the device to see if it fixes the issue.
OK the issue is still happening. Altho I have now noticed that it happens when unlocking the phone. If I re lock the phone and then unlock it. It's back to normal.
Well...even stock firmware is not protected to crash or do sth it shouldnt do by the way
so think about a clean install of the rom or a software update this might fix your problem

Lock Screen Display Timeout Issue

So, I just exchanged my s6edge for a new unit today because the old one had an issue with tone unevenness and extreme yellowing in certain areas on the screen. Anyway, on my new one when I just click the power button to check the time or notification's, not unlocking the phone or anything like that, the display just sits powered on on the locksreen. doesn't time out or turn off. I have to do it manually. Idk why this is happening all of a sudden as it never happened on the old one or any other phone I've owned for that matter.
Any ideas?
I have exactly same problem. But it is software issue and lock screen timeout depends on normal display timeout. I dont know why it is done like this. Ussualy is lock screen timeout about 8 seconds and it is not depend on normal display timeout.

Odd Galaxy s6 Edge Issues

Hi everyone
I've been having some odd issues start occurring around a month ago on my Galaxy S6 Edge 64GB (G925W8):
1. Auto brightness turned on - Screen flickers between low and high backlight very quickly, mainly when outdoors.
2. Home button stopped working completely for 8 days (fingerprint scanner on the button still worked) but temporarily came back last night but is now again unresponsive to presses.
3. Power button intermittently works, 75% of the time I connect to charger it will start to work again for a short time.
Any ideas why these issues would have started occurring and are there any fixes? The only thing I can think of is that I flashed 6.0.1 (6.0.1 EastLink on to 5.1.1 Rogers) on to the phone but I've re-flashed with no luck.
Cheers
1. its the outdoor mode that makes your screen flicker. turn it on manually and try to change brightness, it will be the same
timrock7 said:
1. its the outdoor mode that makes your screen flicker. turn it on manually and try to change brightness, it will be the same
Click to expand...
Click to collapse
You're right, when I change the brightness on the slider, the screen doesn't change at all. This is the same even if I'm indoors.
Any ideas how to disable outdoor mode? I cannot find a setting for it anywhere.
Turns out the home button was "worn out" when I took it in for repair for a phone around a year old!
Unfortunately, a broken home button also means the screen and sensors need to be replaced too but luckily I managed to get the repair done for free by Samsung.
timrock7 said:
1. its the outdoor mode that makes your screen flicker. turn it on manually and try to change brightness, it will be the same
Click to expand...
Click to collapse
I have te same problem on stock 6.0.1. with outdoor and auto brightness flickering
I don't have outdook mode...

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