Hello everyone,
So I bought this one Samsung Galaxy S7 off the flea market for 3€ and when I plugged it in, it showed no signs of life. Then I plugged it in to my powerbank and suddenly, it showed the battery and even the charging animation. I left it charging for a while and then booted it up. It showed the Setup screen as usual, except it had an FRP lock on it. After bypassing that, I got told that I should reset it through settings because the installation is broken or something. After that, all it did was show the Samsung Galaxy S7 screen, then showed the Samsung boot animation screen, after that it showed the "Optimizing apps" and after that the "Installing apps" screen and after that it went black and restarted. From that point on all it did was show the Galaxy S7 screen followed by the Samsung boot animation which sometimes got cut off. After that, I wiped the cache partition hoping that would fix the problem but it did not. After that, I reflashed stock ROM with Odin and it didn't fix the issue either. After that, I flashed TWRP and tried factory resetting it through TWRP because out of nowhere the stock recovery stopped working. It showed the blue screen and then got stuck. In TWRP, after trying to factory reset, it gave me a bunch of errors. (view the image) After that, it got stuck in TWRP and froze. I tried force shutting it off but after that, the notification LED stayed on and the screen stayed black. I left it as it was for a while until the LED shut off. Now, it wont show any signs of life and wont boot in to recovery or download mode. After plugging in the micro USB again, it showed the Samsung Galaxy S7 screen but doesnt go past it. I tried booting it in to download mode but it doesnt want to. Now the screen is completely black and it shows no signs of life at all.
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Ok. So 14 days ago my wife and I both got S6's for Verizon from a local big box store. (yes, 14. Today is the last day I have to take it back.)
We took the OTA to OE2 and I was able to root both phones with PingPong. Everything was fine until yesterday. Her phone wasn't responding when a call was coming in, so she restarted it by holding in the power button. Now, when it boots up it goes to a black screen after showing the initial "Samsung Galaxy S6" screen. Nothing changes. There is a teal/blue pulsing LED that doesn't go away.
I can enter the recovery and wipe cache, factory reset, safemode, etc. I've tried all of those many times. I can enter download mode and use Odin 3.10.6 to reflash OE2 and it says "Pass". After rebooting, it goes to the "Android is upgrading" dialog and goes through and updates about 248 apps, and then changes to read "Starting apps." It won't go past that screen. I left it on that from 10pm last night until 6am this morning with no change. The battery eventually went dead (from 100%). I've tried Odin many times, and it passes every time.
What are my options? When booting, the padlock is unlocked and says "Custom". I'd really like to get rid of that so I can return it to today without problems. When in Download mode, the system status says "custom".
Please help!!
I've also tried using SmartSwitch on the PC, and it doesn't detect the phone.
Update: I'm trying an Emergency Recovery with Smart Switch. It's at 52% right now. I got a serial number from another S6 so it would allow the download/recovery process to start. It's kind of ridiculous you can't get the serial number for your device from anywhere but the settings page on the phone. (Note: not the IMEI, the actual SN). It's not on the box or back of the phone.
Ok, another update. Emergency Recovery didn't work. It finished, and said that it was successful, but didn't fix the issue.
I took the phone back to the place of purchase and they tried about everything that I had already tried. They ended up just replacing the phone. They said that they never saw this issue before.
I have almost an identical issue except I have not roOted or installed any custom ROMs everything is stock . The fingerprint scanner quit working today and said it required a restart, when I restarted the phone I'm experiencing exactly what you are a black screen and a blue pulsing light. In the stock recovery screen I've tried booting to safe mode USB debugging everything except the factory restore yet I think that is my last resort.
Hi!
Very weird situation. Before that everything was stock and OK (no custom ROM or anything).
- If the phone is unplugged, nothing works at all (key combinations,...)
- The battery is charged, at some point, when totally off, it showed the battery charging, 60% at least. But have not been able to go back into this mode.
- When connected, it starts booting, but keeps rebooting very fast (1-2 s after Samsung splash screen).
- Unable to boot into Recovery mode (UP+HOME+PWR, for wiping cache,...). Just does nothing, howerver long I wait
- Unable to boot "directly" into Maintenance Mode (all buttons), more on that later
- Can boot into Download (ODIN) mode (DOWN+HOME+PWR) very easily. I was able to flash stock ROM, but nothing changed.
- From ODIN mode I can boot into Maintenance mode (all buttons). I can navigate the menu, but any choice, even Factory Reset, gets me directly back to the reboot loop...
As I can not even turn it off, I cannot drain the battery (at least not quick). As soon as I disconnect the cable it goes dark (whatever mode I am in).
Anything I missed that I could try before throwing the phone?
Thanks!
SOLVED
Just to leave a trace on what happened:
- Left the phone alone, un plugged, for 8-10 hours.
- Just to see, tried to reboot it normally,
- It booted on a blue/cyan display, with "installing updates".
- At one point before I had that screen, but after 10 seconds it rebooted into the loop cycle. And after playing with the recovery reboots, I had never managed to get this special boot again.
- This time it stayed on "installing updates" for 1-2 mn, then rebooted, and Voilà!!!
So apart from my magic touch of doing nothing, don't really know what happened... So much for the recovery recipe!
A fairly similar thing happened to my girlfriend's g920v yesterday. We haven't been that lucky that it got fixed.
The situation is slightly different though, it boots for about 3 seconds, makes the low battery sound, battery indicator says 0%, then shuts back down.
Tried flashing stock in odin a few times, a few factory resets, nothing.
It seems like an OTA update failed and now the stupid locked bootloader won't let me or the or OS fix it.
Sorry you were not as lucky... But as you said the problem seems a little bit different, as I never had an empty battery warning. I agree though that it looks as a bad update stuck somewhere.
guimou_qc said:
Sorry you were not as lucky... But as you said the problem seems a little bit different, as I never had an empty battery warning. I agree though that it looks as a bad update stuck somewhere.
Click to expand...
Click to collapse
There's got to be some connection of some sort, yours is the 4th post I've seen here or on Reddit this month about bootloops probably related to updates
Hello, recently I started reading comics and found my old tab lying around so ill give it a go
First thing first it wont boot becaue it had no charge obviously (been there for like some years), then I tried to plug the charger but to no avail
I cleaned the contacts of the charger with a dry brush and start charging which then my tab starts charging!
when I booted, I think it was CM 12 (or 13? the one with andy I believe) and everything is force stopping.
I then tried to go to recovery mode and wipe data, but when i rebooted it it just stuck with the splash screen (the one before bootanimation)
I turned the tab off and tried to boot to download/recovery mode but it would just boot me right to the splash screen again, which mean i cant go to TWRP or ODIN.
And it doesn't always want to turn on, sometimes it just stuck there with black screen (not turned on) even if i press power/combo button, sometimes it pop up to the splash screen. what i notice is that i should wait for the charging indicator to show up before i can try to boot again (i got enough juice now, 56% the last time it turned on)
also one thing i remember is something about F2FS but im not sure what that is, but that might be a clue to my situation so ill just write this down here
Hi
Same here with P5110 and Slim7. I can't start it anymore....
I didn't use it for some time and then i charged it to 100% and it started but everything seemed to lag. Then i turned it off and wanted to look for another rom or a newer build. But i can't start it anymore. when i plug in the charger i can see the charging screen but beside of that i can do nothing. It has no effect when i push the on/off button or anything else...and it has to be at nearly 100%...
So, first I thought my brother's A51 was water damaged because it was wet a little bit and charging was being interrupted. I left the phone turned off for the night and wanted to look at it again the next morning. The problem is that the screen or something else stopped working.
The screen works fine in Download mode, Recovery mode, or at splash screen with phone's model name, the problem begins when it's booting to Android. It's still stuck at the splash screen. no boot animation, no lock screen visible, just a model name. It's not bricked, because I can still unlock the phone (didn't have a password) and I can hear the unlock sound or charging sound (it started working again).
I tried factory reset through recovery - didn't help, flashing fresh firmware from Frija - didn't help. The only thing that changed is now the splash screen brightness goes down a bit and I noticed that until I am touching the screen so the phone can't lock itself it doesn't turn off the splash screen, but when I press the lock button it turns off the screen and I can't turn it back on, but the phone still works because I can hear charging sounds and it shows up in Device manager.
I also opened it because I wanted to see if there's any water damage, but I didn't see any water marks or burnt components. I cleaned the charging board with alcohol and let it dry but that didn't help.
I'm worried that there's something wrong with the motherboard or the charging board because it has a screen connector.
I can also see that some people here have similar issues:
Unbrick A51 - Stuck on samsung logo
Hi, My phone is stuck on A51 logo for days now it charges - I can enter download mode easily - I can sometimes enter recovery mode some other times it doesn't let me I tried flashing different stock ROMs of android 10, 11 for the phone with...
forum.xda-developers.com
black screen after splash and unable to factory reset, possibly frp?
Apologies for formatting, typing up on my phone during my break at work. To be more specific, I have a samsung a51 that recently had a black screen of death with no known cause. The samsung splash screen as well as the recovery menus alll work...
forum.xda-developers.com
I should also add that I don't have access to settings so I can't unlock OEM and flash custom recovery / ROM. I also cannot downgrade to Android 10 (duh)
I have exactly the same behaviour here.
I ordered a "defect" A51 on Ebay which was not working. I opened it an saw a water damage at the USB-C charging board. Since there was a lot of oxydated parts I ordered a replacement for this board.
After cleaning an replacing the charging board I have the same issue as szerbi. I see the charging screen (while powered off), I can enter download mode and transfering stock firmware using Odin, I can enter recovery mode. While all these states the display works well and I cannot see any damages like a broken display.
I even got it working correctly after several Odin firmware update and recovery mode / factory reset attempts and I could install some apps and set up my google account. I was very happy. But after some hours again: no screen while Android is running.
Now, when Android is running I hear the charging and the screen shot (pressing volume-down + power buttons) sounds and the phone will be visible as a storage device while connecting to a PC.
Conclusion: The display is black while Android is running. Since it was shortly active I assume either a loose contact on one of the flex cable connetions or a water damage at the displays flex board. Unfortunately latter cannot be checked without dividing the display from the display frame. I assume this is an irreversible process.
Hi everyone, i have a weird problem: my phone's screen works perfectly, i can use it in recovery mode and download. It shows also the boot logo and the battery level while charging (if turned off). But when it loads the os the screen turns black and i don't know what to do. I wiped data by recovery and flashed an official rom with odin but the screen remains black.
The phone is 1 year old, does warranty cover this?