Develop Bugs

[Q] Anyone suffering Screen Flickering?

Twice in the last couple of weeks I have had the screen flicker when I turn it on, turning it off then back on again has sorted it out both times.
I am hoping it is either down to some CM autobrightness thing, or under/overclocking...or both.
Unless anyone thinks this is the start of my screen dying?
Any input would be great

what do you mean by flicker? a slight flicker of the backlight? and by slight, i mean realllyyy slight

Nah its a full on flicker as in you can't use the phone like it.

I know when the forums started some people, like 2, were saying when they set their brightness setting to the lowest setting it would flicker. I suppose they returned it.

my brothers phone is doing that right now

I've had mine flicker about 5 times in the last four days. The screen semi locks and jumps up and down a little in a juddery way. When i try to scroll it works hap hazardly. Turning the screen off and on sorts it out. Not sure why it does this but it only started at the start of this week.
Sent from my HTC Vision using XDA App

Had this happen to me on a reboot today right as the cm logo was fixing to come up. It was only for a split second, like scribbled green flicker. It was after I updated to 6.1.1
Sent from my HTC Vision using XDA App

Mine does it all the time when the screen auto dims.
That was right out of the box stock.

ok good to know I am not the only one, I will keep an eye on it but I do think it might be to do with autobrightness

Got a screen protector on? Maybe the thickness/quality of screen protector could be an factor?
Sent from my HTC Vision using XDA App

Do the options in Cyanogen Settings,.. UI,.. Auto Backlight,.. Filter thing not sort anything for you?
Sent from my HTC Vision using XDA App

Lennyuk said:
Twice in the last couple of weeks I have had the screen flicker when I turn it on, turning it off then back on again has sorted it out both times.
I am hoping it is either down to some CM autobrightness thing, or under/overclocking...or both.
Unless anyone thinks this is the start of my screen dying?
Any input would be great
Click to expand...
Click to collapse
ddgarcia05 said:
I know when the forums started some people, like 2, were saying when they set their brightness setting to the lowest setting it would flicker. I suppose they returned it.
Click to expand...
Click to collapse
I had the same thing happen and I just returned it from walmart and got a new one.

I can confirm that some phones do have a screen issue where the backlight flickers at certain brightnesses. Mine does it when at lower ones. Stock rom, etc, doesn't matter.
I also have battery issues (45 mins with screen on at 20% brightness will kill the battery).
I am having mine replaced today.

Replaced my phone, no more flicker, and it seems like the battery lasts twice as long now. Very happy so far

Broken screen or what?

A relative of mine also owns a G2 but recently they experienced a weird issue. They just picked up the phone just to see that the screen went bad. Wasn't in the process of flashing anything. The phone ran CM7.0.2 for the longest time. It was all black with a white line running across the screen and the capacitive buttons are stilll lit. After a week or so, the white line disappeared and its just a black screen now.
There's no water damage as it went nowhere near water and the water damage indicator is still white. Could the screen be broken? A loose connector? Any help?
Sent from my T-Mobile G2

I don't know much about the g2 but try and enter the bootloaders. If they come up then its programming. Something like that happened to my hd2 cuz a bad flash.
If they don't then its prob the screen.
Sent from my galaxy s2. On xda premium

You think just ordering a new screen from Amazon or eBay and replacing it will do trick? And yeah I just thought about bootloader as I wrote the question.
Sent from my T-Mobile G2

mapheG2 said:
The phone ran CM7.0.2 for the longest time.
Could the screen be broken? A loose connector? Any help?
Click to expand...
Click to collapse
if it ran a long time i would guess a hardware failure (if it doesnt even show up bootloader)
so you need to replace the display.
does the display even initialize when powering up the phone?
when switching the phone on you see its "switching" from black to dark gray (lighter black as it is when powered off)
cause if it doesnt even get power, it could be something on the phone too which doesnt give (enough?) power to the display...

Yeah. but I'd take it apart if u know how just to check
Sent from my SGH-T989 using xda premium

Try to connect with adb just to make sure your phone is still working before you spend money on a screen. Unless it rings when you call it or something.
Sent from my HTC Desire Z using Tapatalk

Home buttons, Search button Etc.. Doesn't work! :(

I've tried many solutions, I completely wiped and reflashed different roms. I've also repartitioned my SD (doubt that would do much) .
and still my button's wont work.
Has there been reports of physically damaged bottom buttons? I see no damage whatsoever also lights up perfectly.
Just an idea!
Please help me, its the only phone I currently have in my apartment. Any help or suggestions would be amazing thank you !

Only thing I can think of if there is no damage to the digitizer part would be damage to the ribbon cable that connects the digitizer to the rest of the phone.

kbeezie said:
Only thing I can think of if there is no damage to the digitizer part would be damage to the ribbon cable that connects the digitizer to the rest of the phone.
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Click to collapse
That's what I was thinking... is it difficult to open the phone up ? or is very sophisticated with the amount of screws?

Dude I had/have the same issue. I opened up my phone and put it back together. It started working better now. But whenever it stops working momentarily I just lock and unlock the screen.

there is a seperate flex cable for the buttons, it could be this or it could be the digitizer, either way relativley cheap and easy to replace. you can't always see the problem so just opening it up and looking may not tell you the problem.
but like strawmetal said, if there is some corrision on the contact points or some other intermediate problem, just opening the phone, disconecting it, cleaning things up, and putting it back together may fix your issues
Sent from my HTC Vision using xda premium

strawmetal said:
Dude I had/have the same issue. I opened up my phone and put it back together. It started working better now. But whenever it stops working momentarily I just lock and unlock the screen.
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Click to collapse
Do you still have the issue after reverting to stock?. Locking/unlocking the. Phone worksfor me as well, just sometiimes it is very annoying
Sent from my HTC Desire Z using Tapatalk 2

Came down to once yesterday. Earlier I even had a thin horizontal strip on the screen where touch wouldn't work. I had a tough time accepting/canceling dialog boxes. This is no longer an issue. Hope the bottom capacitatives don't show any more problems today. Then I'll be back onto the rooted side of android.
Sent from my HTC Vision using xda premium
EDIT: I got a lot of ghost activity on myscreen today. Fixed by lock and unlock but goes back to ghosting in a minute.

Today I didn't have any issues, phone was working normally, no unresponsive screen at all, capacitive buttons also worked well. It is puzzling...
Sent from my HTC Desire Z using Tapatalk 2

strawmetal said:
Came down to once yesterday. Earlier I even had a thin horizontal strip on the screen where touch wouldn't work. I had a tough time accepting/canceling dialog boxes. This is no longer an issue. Hope the bottom capacitatives don't show any more problems today. Then I'll be back onto the rooted side of android.
Sent from my HTC Vision using xda premium
EDIT: I got a lot of ghost activity on myscreen today. Fixed by lock and unlock but goes back to ghosting in a minute.
Click to expand...
Click to collapse
What do you mean by ghost activity?
Sent from my HTC Desire Z using Tapatalk 2

Ghost activity = screen being pressed without any interaction.
Sent from my HTC Vision using xda premium

Incredible 2 screen not turning on after heat..

A few weeks ago in las Vegas I noticed that my phones screen was not turning on after being out in the heat.
I rebooted etc etc but the real problem was just that the phone itself was awake and running, but pressing the power button would light up the capacitive buttons but no screen.
I could even swipe to open the phone and feel the vibration of it opening, answer calls by guessing and swiping etc.
The phone would be fine after it cooled down.
Now I'm back in a normal weather city and it's still happening.
Even just being in my pocket... It needs to be cooled down a little or no screen.
Doesn't seem like it matters but;
Cm7
No custom kernels at least not that I ever Installed
I only did the agps fix in terms of mods.
I guess I'm screwed since I'm over the year warranty. Any ideas?
Sent from my Incredible 2 using xda app-developers app

I should point out that in use the extended battery.
Sent from my Incredible 2 using xda app-developers app

Would really like some advice here. Moving to a new device is not ideal but if this is hardware what choice would I have as I'm out of warranty...
Sent from my Incredible 2 using xda app-developers app

Try flashing a different ROM, see if it happens in the bootloader or recovery... I'm thinking hardware issue, if those don't fix it then it definitely is.

prototype7 said:
Try flashing a different ROM, see if it happens in the bootloader or recovery... I'm thinking hardware issue, if those don't fix it then it definitely is.
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Click to collapse
thanks, i will try it.
I had the kang versiion of CM9 but it was a giant fail on my device. Maybe because I did not flash a new kernel, but regardless it just did not work well.
I may try and go stock, just to see what happens, and if I can stomach sense anymore.

Hardware issue!
I had this happen to a different phone of mine. The heat actually started to make the glue holding the screen and connectors in melt away, so the screen kept going in and out. The screen and touch digitilizer are different. You may still feel feedback but the screen just isnt powering on! Try opening your phone and looking inside to see if the connections are still nice and tight. Usually its like a ribbon cable sort of thing holding everything in place.

geekcentercreations said:
I had this happen to a different phone of mine. The heat actually started to make the glue holding the screen and connectors in melt away, so the screen kept going in and out. The screen and touch digitilizer are different. You may still feel feedback but the screen just isnt powering on! Try opening your phone and looking inside to see if the connections are still nice and tight. Usually its like a ribbon cable sort of thing holding everything in place.
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Click to collapse
Awesome! I installed paranoid android and aside from a few errors its been slightly better.
I think though that I will get a service manual somewhere online and take it apart and try and clean it out.
Most electronics I've owned in las Vegas have had overheating issues so I am not surpised this happened to the phone as well
Sent from my Incredible 2 using xda app-developers app

Galaxy Note 8.0 need advice!

GT-N5110 wifi version. Ive had this device for 10 days. Out the box it was running 4.1.2 and seemed work great other than the occasional 3-5 seconds when screen would become unresponsive during normal use. After using it for a few days I decided to go ahead and update to 4.2.2 thinking maybe it would fix the screen issue. It did fix that issue but now im having another problem. After the device sits dormant for awhile the screen doesnt respond to touch but still works fine with the s pen. Ill turn it on after sitting all night and after swiping to unlock the screen it becomes unresponsive. I usually have to lock/unlock the screen several times before it will start responding. After it starts working I can be on it for hours with no more problems. But if I lock the screen an set it down for awhile when I go to use it again it does the samething. It seems like it has to warm up. I tried doing factory data reset but that didnt help. It is rooted also but the only thing ive done so far is get rid of some bloatware.(i didnt root it untill after the problem started). Anyone have any advice?

Do you have your note in a cover , and if so does it have a magnet.
Sent from my GT-N5110 using xda app-developers app

That does sound rather crazy, the unresponsiveness is out of the ordinary... did you try turning off a lot of the extra features built in by Samsung? another thing you could do is download Clean Master from the play store and take a look at your Ram use-age and clean out some cache files with it, this might help with the lag. The touch response could be hindered due to a case or screen protector... other than that the only thing i could think is if there was physical damage done to it before that could cause the touch screen to act that way.

Ummmm... I would have taken it back to the store and asked for a replacement.
That is not normal at all. even with the device's settings left alone, there should not be any issues with responses with touch.
Note... The pen feature is totally separate from touch. The screen has two different features, one being a digitizer for the pen function the other for touch. It is possible that during assembly that the connection for the touch screen is faulty, as a bad solder joint during wave process could make the connection heat related. As the device cools, the contacts contract causing a fault with touch operation. When heated up from normal use, expansion forces contact between connector and board for normal operation to function with touchscreen.

livis n fur said:
Do you have your note in a cover , and if so does it have a magnet.
Sent from my GT-N5110 using xda app-developers app
Click to expand...
Click to collapse
Using another case without magnets fixed the problem for me
Sent from my HTCONE using Tapatalk

FrozenRiff said:
Using another case without magnets fixed the problem for me
Sent from my HTCONE using Tapatalk
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The problem was my samsung book cover! Can't believe samsung would make a cover that causes these kinds of issues. Glad I only paid 7 bucks on ebay instead of 50 at best buy. Thanks guys for the comments!

TwanMan87 said:
The problem was my samsung book cover! Can't believe samsung would make a cover that causes these kinds of issues. Glad I only paid 7 bucks on ebay instead of 50 at best buy. Thanks guys for the comments!
Click to expand...
Click to collapse
Thanks for the FYI. I was using the moko whatever with a keyboard and I got the freezes all the time. I was thinking about the official Samsung one but if that gives you problems then forget it. I almost sold this thing on eBay cause I couldn't take the freezes anymore. Now I use a tpu case with it and couldn't be happier
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