Hello,
As you can see my issue is related to the screen... backlight always worked until some days ago where it failed somehow.
It started to fail when I flashed Stock Kitkat with the recovery but I don't think that it could be related...
My question is simple, did anyone faced this issue and resolved it?
My guess is that it has to be repaired but if there is a small chance it can be repaired from my side without opening it I'm willing to try it, otherwise it goes to reparation
[EDIT]
Apart from this issue the phone is working just fine, I mean it boots correctly, can enter in download/factory reset mode if I want too.
The only thing is if I adjust the brightness on the phone from Android nothing change, the phone is still dark and can hardly see what's in the screen.
[/EDIT]
Thanks in advance!
Hello, yesterday I started having a problem with my i9505 that I never seen before....
I noticed that when I unlocked the screen, the screen kept black and just the led on the buttons turned on, so I tought the phone had frooze, and I took the battery out then put it back and turned the device on again...
The "samsung galaxy s4 i9505" scren appeared just fine, the cm splashscreen was fine too, but when it finished booting, the screen went black...
I noticed that the screen doesn't give any haptic feedback, the buttons that are lit give haptic feedback normally, and the home button also don't have any feedback, even by pressing it, or holding it...
If I take screenshot, the screen flashes white, but goes back to full black....
If I hold the power button, the options "Power off - Reboot - Airplane mode" appears, and the buttons work, but if I press outside the popup, the screen goes black...
So, there's no hardware problem related to the screen, since it works fine while booting, and on recovery mode
But there's something software related that makes the screen keep black after booting, and it's not brightness related, since the menu by holding power button shows correctly...
Has anyone seen anything like this?
My device is an i9505
The ROM I'm using is optimized cm12.1 from JDCTeam:
http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696
Specht77 said:
Hello, yesterday I started having a problem with my i9505 that I never seen before....
I noticed that when I unlocked the screen, the screen kept black and just the led on the buttons turned on, so I tought the phone had frooze, and I took the battery out then put it back and turned the device on again...
The "samsung galaxy s4 i9505" scren appeared just fine, the cm splashscreen was fine too, but when it finished booting, the screen went black...
I noticed that the screen doesn't give any haptic feedback, the buttons that are lit give haptic feedback normally, and the home button also don't have any feedback, even by pressing it, or holding it...
If I take screenshot, the screen flashes white, but goes back to full black....
If I hold the power button, the options "Power off - Reboot - Airplane mode" appears, and the buttons work, but if I press outside the popup, the screen goes black...
So, there's no hardware problem related to the screen, since it works fine while booting, and on recovery mode
But there's something software related that makes the screen keep black after booting, and it's not brightness related, since the menu by holding power button shows correctly...
Has anyone seen anything like this?
My device is an i9505
The ROM I'm using is optimized cm12.1 from JDCTeam:
http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696
Click to expand...
Click to collapse
You could have problems with your gapps, try minimal gapps for 5.1, made by jabj
Hope I helped :3
_Bon_Bon said:
You could have problems with your gapps, try minimal gapps for 5.1, made by jabj
Hope I helped :3
Click to expand...
Click to collapse
Do you mean flashing over the system I have now?
I tried flashing the ROM again wiping just cache and dalvik cache, but didn't help
Are you using xposed?
donkyshot said:
Are you using xposed?
Click to expand...
Click to collapse
No, never used xposed
I've seen this before, but it took me a while to remember where. Usually, a black screen as you're describing occurs when the device has no launcher app. Since there is no launcher app there's no way to do anything. Now, it's unlikely you removed all your launchers so I can only guess you have a software issue with the launcher app itself.
Try doing a dirty flash of the ROM, if you haven't already done so. Don't wipe data or internal storage, but do wipe the cache. See if that solves the problem.
Strephon Alkhalikoi said:
I've seen this before, but it took me a while to remember where. Usually, a black screen as you're describing occurs when the device has no launcher app. Since there is no launcher app there's no way to do anything. Now, it's unlikely you removed all your launchers so I can only guess you have a software issue with the launcher app itself.
Try doing a dirty flash of the ROM, if you haven't already done so. Don't wipe data or internal storage, but do wipe the cache. See if that solves the problem.
Click to expand...
Click to collapse
I alreadly dirty flashed the ROM wiping cache and dalvik cache
You're probably going to have to wipe everything then. Make a nandroid backup however, as you can restore your data partition after flashing.
Could be a Rom bug too...
Specht77 said:
Hello, yesterday I started having a problem with my i9505 that I never seen before....
I noticed that when I unlocked the screen, the screen kept black and just the led on the buttons turned on, so I tought the phone had frooze, and I took the battery out then put it back and turned the device on again...
The "samsung galaxy s4 i9505" scren appeared just fine, the cm splashscreen was fine too, but when it finished booting, the screen went black...
I noticed that the screen doesn't give any haptic feedback, the buttons that are lit give haptic feedback normally, and the home button also don't have any feedback, even by pressing it, or holding it...
If I take screenshot, the screen flashes white, but goes back to full black....
If I hold the power button, the options "Power off - Reboot - Airplane mode" appears, and the buttons work, but if I press outside the popup, the screen goes black...
So, there's no hardware problem related to the screen, since it works fine while booting, and on recovery mode
But there's something software related that makes the screen keep black after booting, and it's not brightness related, since the menu by holding power button shows correctly...
Has anyone seen anything like this?
My device is an i9505
The ROM I'm using is optimized cm12.1 from JDCTeam:
http://forum.xda-developers.com/gal...lop/exclusive-antaresone-alucard24-s-t3066696
Click to expand...
Click to collapse
I hope you tried reflashing your CM12. If that didn't work clear all data and flash a freshcopy of CM12. It could be a problem with your Rom too.... you could get an update soon..
I had the black screen problem and it turned out to be the silicon case I had just bought for it. Guessing it was pressing buttons together or something causing a corruption. After restoring it twice, twigged this and binned the case. Problem solved lol
My s4 is stuck in boot screen. Recovery doesn't work and i dunno why. Download mode works but I don't wanna format my phone(got some important apps in there). And it really heats up to the point there's moist on the camera lens(?)
What did you do?
I haven't really done anything. Just while charging I'd turned it off. Then turn it on to find out the it is stuck on boot screen. I will try flashing a stock firmware
I did now flash a stock firmware.. but still not working. at first boot some green dots covered up the screen. then it became white then i was forced to remove the battery. I think it has something to do with the heat that made the screen green-white
ryanperez said:
I did now flash a stock firmware.. but still not working. at first boot some green dots covered up the screen. then it became white then i was forced to remove the battery. I think it has something to do with the heat that made the screen green-white
Click to expand...
Click to collapse
Seems a hardware problem.
Yeah. :/ i want to really know what causes the problem
Hi,
After Xmas I made factory reset with TWRP and I made an upgrade to CM13.(6.0)
It was working fine.
When I was trying to make next daily update, after reboot, screen became black and nothing shown up.
I was trying a lot of things since that moment.
When I was going back from service point (I really want to sort it out) when they told me it is probably LCD broken (i have broken glass, but 1 year ago, so I do not believe it can be screen),
when I take phone out I spotted that keys are highlighted so I swiped and it locked out and shown screen! it was working perferctly fine,
so I decided that it is best moment to flash newest CM to solve issues, but after reboot screen was black again.
I can enter download mode so it is visible in Odin, but screen is black in every mode.
There is only quick flash on screen when turning on and also really short moment of Samsung Galaxy logo which becoming dark quite quickly.
I flashed stock rom(5.0), but nothing changed, despite of that I know phone is turning on somehow because I hear music on turning on...
Can someone help?
I really doubt that it can be hardware issue.
Can it be something with BL ? How can I solve it...?
Hello, so I have a J7 2017 (SM-J730GM/DS) 32 GB Unlocked Dual SIM which has served me well for a while. I ended up dropping the phone at some point in a sliver of time without a case and the screen cracked. After replacing the screen I noticed if the screen was pressed in a certain area it would go crazy and reboot the phone (crazy as in the pixels would do weird things like dimming, going grainy, like the display shorted in some area, then the phone would reboot itself), probably some error on my installation of the screen and the ribbon cables (I can see an area where it looks creased, it never sat flush with the body of the phone as the OEM screen did). I was able to just be careful and not trigger the reboot for some good time until it happened again and the phone would continuously reboot, allowing me to only get back to the OS through the boot menu, selecting "reboot now". That worked for a while until it would never boot into the OS, just looping at the screen where it says the phone name, where it would vibrate, go black, and go back to the phone name screen. I gave up trying to fix it, as I had a backup phone, and just now had some ideas. I figure the OS is corrupted in some way, I am no master in knowing the details on how phone boots up and such, so I did some research and successfully flashed the most recent ROM onto the phone using Odin 3.14. It still doesn't stop the looping, unfortunately.
Any ideas? I hear people talking about using TWRP or something to do things boot related, but I don't want to possibly mess anything up further nor do I know what they were talking about.
Thanks,
Stella