Galaxy S6 - Various hardware and software issues - Galaxy S6 Q&A, Help & Troubleshooting

Hello everyone, I am using a Galaxy S6 32GB smartphone. I bought it a month ago which is really a small amount of time, but in that time the phone has gotten a wef problems. First of all the TouchWiz is really buggy and slow, when I tipe the pin on the lock screen the number keyboard gets unresponsive and slow. It can take a few seconds between clicking the unlock or home button and turning on the display. 2 times the display didn't even want to turn on, the finger sensor under the camera would start flashing red, and when the screen would turn on it would give me "TouchWiz has stopped working" error, and it started working normally when I restarted, but that didn't solve the slowness problem, even now when I'm typing this the keyboard is slow. I wiped the cache in recovery but id didnt help. The next problem which I wound on google that is normal for Galaxy phones is crazy shaking camera when I turn it on, which is not a big deal since the camera takes really beautiful shots. And the last but not least are the purple dots on the front-facing camera. While I don't really care for the camera issues I am looking for a way to fix the software issues, or I should just go to T-Mobile and ask for a new phone?
Best regards and please respond.

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Weird camera issues

Hello my gear 2 is having some issues after taking a picture or vid there is no possible way to take another the camera app freezes and I get a black screen and after some seconds the message unable to start camera and it will send the pic or vid after some time to my note 3 not right after it was taken and some times when the screen timeout ends and my screen turns off it won't come on it is like the gear dies at that state it seems from the phone to be connected but I tried calling myself in case it revives but no during an incoming call the gear remains inert the only way to revive it is a hard reboot by long pressing the hard button I tried reseting it tried updating it but I'm on the newest firmware for my country (Greece) I haven't messed with it like rooting or punching it or throwing it to the floor or something the only time I am concerned if it has anything to do with this problem is taking a bath to the sea for maybe an hour or less but the problem doesn't seem hardware anyone who can help post his opinion or a same case would be appreciated!!!

Xiaomi Mi4- Screen Glitch Showed Random Colors, Now Phone Doesn't Work

HELP ME PLEASE!! Phone doesnt work at all, I'm so frustrated dont know what to do =(
Hello! I'm Nicolas, from Chile. And i own a Xiaomi Mi4 Since March2015.The thing goes like this, since May the screen had a fringe/bar where the touch sensor stopped working, this was NEVER a problem, because it was an area that we never use. But 2 days ago, i pressed the power button to turn on the screen and put my password, but the screen went mad and showed just fringes with lots of colors, then it barely showed the password screen, then colors again and etc, sometimes it worked fine for like 10 seconds, and it crashed again. The phone started working awfully slow, i mean, with like 4 seconds delay for EVERYTHING, i couldnt use it!!. Sometimes it worked just fine then the screen went mad again, with fringes and dots and black or blank screens. I never did hit the phone in the process, not any kick, nothing, the screen just stopped working, all black. The next day i changed the screen (because i thought there was a problem with the screen cause it was previously with an issue, and i thought the ultra laggy system was a problem with the screen or something, that the incredible lag/delay was because the screen). And the thing is when i changed the screen, a brand new one, the exact same thing happened, nothing works, it is alive because i can screencast the phone on my laptop, but it keeps running incredibly slow, it is too slow i cant even open whatsapp without waiting 2 minutes... I cant even put my password smoothly, because it is so laggy and delayed, that if i press the number "1" it shows up on the screen like 4 seconds later... And i mean it shows up << on the laptop screen>> (not to forget the brand new screen doesnt work neither)... So it is a problem with the processor? the ram? the adreno 330? what? Please i need help, i cant afford a new phone =(.
Plus info: Everything seems to be connected alright, i did the replacement myself watching lots of videos, and everything is simple and i think well done, the phone is still alive, but controlling it by the laptop, screen doesnt work, wifi doesnt work (its like there is no adapter anymore...), 3g signal doesnt work, it does not even recognize my phone company it says no service, I controled it by the laptop and now is playing music at full volume...
I didnt know where to post this, sorry if misplaced.
HELP ME PLEASE!! I would be so thankful! =(

Touchscreen randomly not working

Hello guys,
This is not necessarily a specific S8 plus thread, it's more of a software/hardware general related issue. I just replaced my display two weeks ago because I cracked the screen and the display a while ago.
After replacement, I got the phone, everything was good until I dialed *#0*# and started testing the touch. It appears that theres a portion in the middle of the display that is not working (the boxes wont go green when touching them). The thing is that, sometimes, the touch passes this test as in everything is ok and sometimes, it fails.
From time to time(pretty frequent) it randomly freezes and I have to hit the power button to open and close the screen to make it work again.
I just flashed the android Pie hoping a complete erase would fix the thing but it appears it didn't. Do you guys know any solution to my issue besides returning the phone in the service?
Thanks!

[SOLVED] Half of the screen flickers black between unlock and home screen

Couldn't find any similar topic except in forums for s10+, OnePlus and other phones. Sorry if I missed anything.
As in the subject, after unlocking, approximately half of the screen flickers black and goes to the home screen. It takes less than a second. Always top half, bottom half shows home screen right after unlock. This does not happen on each unlock, but also, there is no pattern - it can be after 5 or 30 unlocks, it can be after 5 minutes or 10 hours of not using the phone. It started mid-July and not only annoys but is starting to worry me. Solutions from other threads didn't help. For example:
Fingerprint sensor problem - I don't use it, I have pin lock.
Samsung Pay issue - I don't even have it available, so, don't use it either .
Animations - setting them off did not help.
I cannot guess anymore what would be the cause, if it's some app which wakes up after unlock or what else. The only thing I've changed (except updating apps) was adding another sim card, but my tiny little brain cannot find connection. I didn't test removing it as I need this sim active and don't have backup phone right now. Also, I would really like to avoid resetting the phone...
Did you experienced anything similar?
Thanks a lot for any help or suggestion.
are using Samsung or some third party launcher. Did you wipe cache? Latest firmware updates?
Yes, I did both, firmware update and cache wiping, no change. I'm using stock launcher.
did you try in safe mode to exclude some app causing it
Yes, I tried safe mode without success.
i would take it to Samsung repair centre if pos
Thanks for trying and all the steps. There's nothing like that where I live, neither any advisory place except for hotline. I can drop it at their service but will need to wipe it down before, which I keep as the last resort. I'll keep waiting for another firmware update and if nothing changes then I'm willing to do the hard reset. I just hope it's not a symptom of some virus - I'm trying to be most careful, scanning device periodically, didn't root, so I naively count on being safe...
i don't think it's virus. fingers crossed it's just software issue
hi again, just to let you know, I think I know what was causing this flickering and now I feel silly . Home screen rotation. I had this option turned on, and it's possible that sometimes, when I put my phone on the table, home screen rotates to horizontal position. Of course it locks after few seconds. I've noticed it completely accidentally, because one time, when screen flickered black there was slow-motion rotation animation in the background (which I've never seen before). That's why flickering was completely random to me, not connected to any type of notification whatsoever. Well, it's not, it has a pattern . I've checked it plenty of times and each time I lock my phone with home screen in horizontal view, but unlock in vertical, half of the screen is flickering black. That's it, at least I believe it must be this, because it happens each time and never when I lock my screen in vertical position.
Once again thanks for all the help!

Question how to fix random black screen after opening phone

My z-flip3 5g has a strange problem. If i close it (by folding the screen closed), then after opening (unfolding) the screen and touching the right side button/fingerprint reader to unlock it, i hear the quiet "click" noise that indicates the phone is unlocked, but the screen stays black. i then have to repeatedly push the lock button on the right to lock the phone again and unlock it again. after several attempts the screen finally turns on. sometimes it will go black a few seconds later and the same issue continues. but other times the screen will stay on and work fine.
i have noticed that if i do not close the phone (folding the screen together) then i do NOT encounter this issue. the phone screen turns on when pushing the right side button (or touching the fingerprint sensor) and everything works fine.
this issue started yesterday, a system update installed yesterday as well, could it be related?
i already restarted many times, booted into recovery mode and wiped the cache. nothing has helped. the only way to avoid the problem is by not closing (folding the screen shut) the phone.
One UI v 5.1
Android 13
Security patch level Feb 1, 2023
fully stock/not rooted
I have same behavior. Did you solve this problem?
Unfortunately no. Did a factory reset, hoping that would help, but the issue persists
Mine has recently started doing the same. Last update was right before this started several weeks ago. I don't have mine set to require fingerprint, it should just turn on after opening. If I open it partway, it will turn on, then turn back off when fully opened.
hi,
i have same problem, it's software problem?
Not completely sure about that. They update this thing so often, it could be coincedence that it started shortly after an update. I want to try blowing out the hinges as I've got some dust under there that I hear when opening the phone. Definitely not a phone to put in your pocket after working in the wood shop!
Digital Dragon said:
Not completely sure about that. They update this thing so often, it could be coincedence that it started shortly after an update. I want to try blowing out the hinges as I've got some dust under there that I hear when opening the phone. Definitely not a phone to put in your pocket after working in the wood shop!
Click to expand...
Click to collapse
and donĀ“t take it to the beach either!
What is also strange is that when I close the phone and open it a few seconds later, there is no issues whatsoever. However, if I leave it closed a few minutes, then when opening it, the problems with the screen staying off happen.
Yes, definitely don't take it to the beach!
@netridah , mine is doing exactly that. Which makes me wonder is it a wake issue, or a mechanical/sensor issue with the hinge.
one more to the bill
I checked the flexes and I warmed up the logic nothing works
I have the same issue: Flip 3 - 5G with OneUI 5.1 - 1 April Patch level
When I open the phone I eventually see for less than one second the lock screen, the goes black and unresponsive.
Then I have to press the button to turn the screen off (even if it is already) and then re-press the button or use the fingerprint to turn it on and it will work (eventually, sometime I have to do it a couple of times).
I already googled it on many forums but no solutions, I've tried to:
Disable the always-on display - no result, at first looked like it did the trick but the day after was having the same issue.
Check all the updates of the system components like always on-on display (settings --> lock screen --> always on display --> info), no help everything is up to date.
Hi,
I have the exact same problem, only difference is that I'm on the z flip 4.
I get the black screen and sometimes when opening or closing the phone the screen can flash in a bright yellow or green color.
I got a motherboard but the problem continued
Next step changing screen is very expensive at the moment
This is driving me crazy - also started the day I updated to OneUI 5.1.
Hoping for a solution soon!
I am also encountering this problem, I went to samsung repair shop 1 month out of warranty, sales person said it is a screen issue and needs to be replaced for 430$. Mine was before the update, i took mine near the pool, got wet maybe, as the alarm for usb charging mentioned unplug it immediately, day after it began randomly dark when phone is openned fully. Zflip 3
Oh just an update, i did some tinkering today, Good lock all updated, disabled clockface, sprayed some contact cleaner on power button, and hinges, fold close and open for a minute or two, fell asleep for 1 hour, and when I woke up, my screen works back to normal, it wakes up when unfolded, no more waiting or hitting the power button several times. hope this stays like this.
piper_indebt said:
Oh just an update, i did some tinkering today, Good lock all updated, disabled clockface, sprayed some contact cleaner on power button, and hinges, fold close and open for a minute or two, fell asleep for 1 hour, and when I woke up, my screen works back to normal, it wakes up when unfolded, no more waiting or hitting the power button several times. hope this stays like this.
Click to expand...
Click to collapse
How to disable the clockface? what would that contact cleaner be?
thanks
firstchris said:
How to disable the clockface? what would that contact cleaner be?
thanks
Click to expand...
Click to collapse
Hi, few days now, I still have occasional blacking out, I've tried putting my phone on safe mode, and this seems to solve the problem. I suspect it may not be hardware fault, but 3rd party software, "good lock" or something else that conflicts wit one ui, that makes the flipping open lag waking up. Contact cleaner used for electrical stuff
Didnt use my z3 for about a week let the battery drain.. then charged it too 100% without turning on the phone.. my phone back to normal now.. hope it works for you guys
Hello,
I am using Z Flip 4 and last night I started having this problem as well. I can confirm 100% that my phone has no hardware nor a history of impact of any sort that's why it's really frustrating having this kind of problem.
Has anyone already found a resolution for this problem?
Z flip 4 here also. Had the same problem with the screen. Took the phone to Samsung and they changed the screen, frame and back panel's for free under warranty.
They said it's a hardware issue.
So better to take the phone to Samsung.

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