s4 display not working - Galaxy S 4 Q&A, Help & Troubleshooting

Hey.i just had a brand new s4 and was going through it .I found out that the default camera setting were set to 9 mp.and when I switched it to 13 mp just after that the sceen started blinkinga nd also started turning yellow it also became unresponsive.and when I locked it and then unlocked it again the display wouldnt just turn on.and even after reinserting the battery and restarting it wouldnt turn on.can I get any help or I just have to give it back

Related

[Q] Screen Black / Auto Powered Off Frozen?

I seem to have the most bizarre issue that started happening last night. Ive been running XNote v3 and AEL kernel fine for a long time now.
Whenever my screen turns off (when i hit the power button or the timer runs out to turn screen off) The phone will after x minutes, either auto reboot or turn off (without shutdown animation)
It then remains off black screen and you do not know this unless you try use it again as you cannot power it back on at all, no sound and the phone is off as if you call you get voicemail.
Anyone any ideas what it might be?
I cant work out if it is software/ hardware related as nothing has changed software config wise and i have not done any updates.
I was thinking of maybe going to a stock kernel and see how that lives.
Its very easy to replicate and the only way to bring the phone back to life is to take the battery out.
If i am using the phone its perfectly fine, no reboots, freezes etc. Its only when screen is off.
OK since no one replied back but a lot of people viewed i thought i would provide an update.
Since factory resetting it
changing battery
wireless charging
removing sim
removing SD card
changing rom
changing kernel
changing back to stock
remove root
boot loader etc
all failed! a new replacement motherboard fixed the problem. i am unsure what caused the fault as it was working perfectly for over a month.

Wi-Fi completely dead?

Hi,
Wi-Fi on my Nexus 10 always worked good. Then some days ago I turned it on and... Wi-Fi seems dead. I mean it stucks on "Wi-Fi activation..." and doesn't go on. Wi-Fi function seems not to be activable, switch button remains grey and disabled. It happens with 5.1.1 stock rom, then I made a complete factory reset and problem still remained, then i've tried with a 12.1 cyanogenmod and... problem still remained. Wi-Fi seems completely dead. Could it be an hardware issue? Is there an app with whom I can make hardware diagnostics? Or any other advice? Bluetooth also doesn't work and with cyanogenmod every 10-15 secs it shows "unfortunately bluetooth sharing stopped" message...
Thanks in advance.
Hello and thank you for using Q/A,
I don't know if there is a App to check hardware, but I think your WLAN and Bluetooth Chip is broken.
The last thing you can try is flashing Stock via Fastboot. Don't forget to erase all partitions before. There are several instructions in Nexus 10 General section.
Kind regards
Trafalgar Square
I have the same problem, but I am sure the chip is not broken because when I flash and reflash, sometimes the Wifi just comes on. but when I attempt a reboot its gone again. Tried FXR wifi fix but it doesnt always work.
I read somewhere that it could be a problem with the Persist partition but still havent managed to fix it
New problem!
Hi!
I've solved my old problem by replacing motherboard with a new one (with 32 GB HD instead of 16 from my old one). WiFi was perfect. I also had to buy a new 3-button set (power & volumes) because old one was deteriorated. All was right.
But from yesterday a new problem comes out. I was trying to flash last CM snapshot release for Nexus 10, but tablet simply powered off.
If I plug it to PC via USB and press power button I can see battery icon fully charged, but tablet don't turn on. If I keep it plugged, sometimes tablet auto turns on in bootloader mode for a few minutes, then screen flickers and tablet turns off. I've tried to flash CM in these minutes but, at first reboot, tablet turns off.
I think it could be a battery problem. Maybe it's gone and cannot be recharged, contrary to what battery icon seems to say.
Now, I've spent 80 euros for a new motherboard and 15 for 3-button change. A new battery will cost about 50 euros. 50 euros is less than buying a new tablet but, considering a new problem can come out in any moment, is it worth? Also, like when I had motherboard problem, I'm not sure battery is the problem. Any advice to solve or about buying or not a new battery? Thanks!
Took my risks and bought a new battery, arrived on yesterday morning. Battery changed and CM13 correctly flashed, now it seems to be ok. Luckily i hit the right problem.

Help with troubleshooting - bootloop, calls restarting phone, wifi won't turn on

I've been having some problems with my Galaxy S5 recently after ~2 years and some change of owning it. I'm stock rooted on the original ANCG KitKat version.
The problem: If I power off my phone, it will cause it to go into a bootloop, not going past the first screen (Samsung Galaxy S5, powered by android). I haven't found a reliable way to fix it from the loop, but I usually just remove the battery, wait, and try again until somehow it just works and boots up. This is extremely problematic because sometimes my battery runs out and after charging I'll have to go through this game of chance again until my phone works.
The next problem also adds to this frustration as well. When I attempt to pick up a call, my phone will sometimes just not work and restart itself. This leads to lots of confusion and I can't call them back for some time because the phone is stuck in a bootloop.
In the few times that I do get my phone to actually boot up, everything works fine except sometimes my Wifi just doesn't work. It gets stuck on "turning on" where the notification drawer quick setting icon is dim green and never gets to the turned on full green state, eventually just turning itself off (no green color).
I haven't done a factory reset or any real troubleshooting yet, as I'm a bit worried I won't even be able to boot up the phone and I don't have the time yet to spend a full day fixing it. Any help would be appreciated, thanks!
The calling problem may be caused by the google dialer app not being set as the the default phone app but as for the other issues i have no idea a factory reset is a good start though
unfortunately I had the same problem but I have marshmallow but the factory reset helped with the not booting up and see a big difference with the battery

redmi note 3 pro (SnapDragon) phone reboot not working

hi having some issues with my redmi note 3 pro
i just got a available update for my phone miui v8 however cause my phone will not reboot so the update always fails.
when i try to reboot the phone it just turns off and also when i try to turn the phone on i need to hold the power button for over a minuet ....
also if it helps while the phone is turned off and charging there is no display just the led blinks red at me where as normally the phone screen would indicate the battery percentage ... not anymore
the phone has had this issue since i updated from miui v7 but its never really bothered me before as i just keep the phone charged up but now i need the reboot feature to work
i also tried factory resetting the phone but obviously that requires a reboot so that also fails
i have tried using mi pc suite as well to update the phone and that also fails...
i have searched high and low all over the internet to fix this with no luck so im hoping one you you could kindly help me out here
it is also concerning me that cause when i come to get rid of the phone f i fact factory wipe it all my information and private data is stuck there forever

Display turns off after some time

The problem started a few days back, after using my phone display just stops working ie the screen goes black as if it is switched off although I get calls and message notifications. This started to become more frequent but a couple of restarts with no display used to do the trick. The day before yesterday, no matter how many restarts display remained off at first I thought this might be a rom issue so I flashed stock rom. phone booted up and after 20 mins of usage, the screen started going black yet again. and no number of restarts could again fix the problem. Now the phone display turns up every once in a day for about 10 mins. Also when I get into the bootloader ( when the display works) the text all get distorted after some time with lots of green and pink lines running here and there. any guess what the issue might be? Is it the displays problem or any other hardware? Please help

Resources