S8+ constantly restarting - Verizon Samsung Galaxy S8+ Questions & Answers

Last Saturday night my Verizon S8+ suddenly began to freeze. It would do it with many different applications so I don't feel it is associated with one in particular. It then would restart and would hang at the Samsung splash screen. I was able to boot into maintenance mode and then select safe mode. It would boot to safe mode and would function as expected but then without warning restart again. I took the phone in to a local repair shop who said it could be the battery. Replaced the battery and it seemed to work but then started the boot loop again. Since the battery didn't fix the issue I did get a refund. At any rate after letting the phone sit on the wireless charger overnight it did appear to have fully charged and I was able to boot it up normally. There are some pictures that I needed to get off the phone so I plugged it in to my PC and started copying files over. After about 3 minutes it restarted on it's own and the whole boot loop process again. Now be aware that I know just enough about what I'm doing to be dangerous so here is what transpired next. I started pushing a combination of the power button, the bixby button and the volume up and down buttons and managed to get into the downloading a custom OS menu (see attachment 1) I didn't feel comfortable with this so the screen clearly said if you want to download a custom OS press the volume up key otherwise press the volume down key to cancel. Well I must have fat thumbed the volume down key and by accident pressed the volume up key. Upon rebooting it tried to perform a software update but would give an error message file not found. After several attempts to bypass this screen with a combination of pushing the buttons I was able to boot the phone into recovery mode (see attachment 2) and that is where it is right now. Good news is it hasn't tried to reboot so obviously it in a boot area ahead of whatever was causing the issue to begin with. I also note that the blue charge light indicator seems to be glowing from dim to bright as if I am charging the phone but I don't have the cable connected. So that's my story and I'm sticking to it. I am hopeful that one of you Android technical gurus could advise me of a way to recover the functionality of my phone through this menu? I have attached a couple of screen shots relevant to my issue. Please help and thank you in advance for any assistance.
Jim

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[Q] [Assistance Needed]GT N7100 issues

Hi Guys,
I have my N7100 for almost 3 months now and yesterday my son accidentally spilled water on it. The whole unit did not get wet, just the side where the volume rocker is. And it switched off by itself. I removed the battery and let it dry for a few hours. I switched it on and yes it did turn on but one volume button ( - ) is not working and the back and menu keys are not working also and it does not recognize any touch on the screen but when I used the S-Pen it recognized it. It's a rooted, heavy customized and tweaked phone. I noticed that it went to "safe mode", it was indicated on the lower left side of the screen and all installed apps were gone. DPi value went into default. I tried to install some apps, it went successfully but I can not find it in the apps drawer. I went into recovery mode, hoping to remove it in safe mode (foolish me, did not even tried to read or search on xda for possible fix), re-flash a custom ROM but same thing. I also found that the two water damage indicators inside the phone turned pink. The components inside were dry when I opened it, but because I am eager to fix it I tried using a hair dryer to (of course) dry it a little bit without damaging anything. After a while I put everything all together, switched it on and it now recognized "touch". But issues with volume key ( - ) and menu&back buttons still remain and it is still in safe mode. I decided to restore it to factory default via recovery mode, I cleared everything, reformatted system, data, all menus with the word "reformat' I pressed them all. Restarted the phone and it just stays on the logo where it says "Samsung Galaxy Note II GT N7100". Tried to go back to recovery mode but with no avail. I tried to go to Download mode also, I was able to make it to the part where it says "press volume up to continue; press volume down to cancel" I then pressed volume up but nothing happens. I pressed the volume up and same thing. Tried to charge it while it is switched off, the battery icon charging appeared, it shows the circle animation but it does not animate and it doesn't animate also like it's charging itself. Plugged it into my laptop and it doesn't recognize it. I've been reading some XDA articles and I only came acrossed one possible way to resurrect it...To get Download Mode without 3-button combo using homemade JIG. Well, I know for a fact that I need to send this to Samsung Service center but I am still hoping that someone here might help me or I may still find other alternative solutions without spending a lot of $$$ in sending it for a repair. Thanks in advance!
Apparently u have formatted system partition. Have u try flash via PC odin? Maybe the download mode will work with odin
Yeah, that's what I thought also. Foolish me! Apparently I can't even try Odin since my laptop does not recognize the phone. I can't even go to the download mode. It was stuck on the part where it says Volume Up: Continue, Volume Down: Cancel.
hmm.. seems like the hard key for the volume are done for. since u already disassemble it, cant u use the manual way to press? it u able to go into download mode, the driver will auto download, well at least it auto download for me
Tried that also mate, but no luck. I think the phone does not recognize the volume rocker. I just noticed that when I pressed and hold the menu key plus the power button it goes to the page where it says volume up: continue...where you are supposed to press volume down+power+menu key right? I tried to press the volume up key to continue but no luck. I was browsing xda the whole day to search for an answer before I send this so Samsung service center. I tried a homemade jig so I can go to download mode but it does not work. I have read that other SGNII users were able to make it work. On the instructions it says to use 3pcs of 100K ohm and a 1k ohm resistors but I used 6pcs of 50k ohm + 1k resistors (since I can't find any 100k ohm resistor on any electronic store near my place) connected it to pin 4 and 5 of a micro usb plug and still no luck, nothing happens. Tried some several combinations.
I have don't have good sleep since my Note II died...Haven't eat properly...Yeah, you read it right...hahaha..Still trying to search for possible fixes, it's 12:40am now and I am almost sleepy, if I still can't find any solutions until tomorrow then I will be sending this to Samsung Service center
or....if Adam will reply on this thread http://forum.xda-developers.com/showthread.php?p=39387670 then I am willing to dismantle and do whatever he wants me to do just to resurrect the phone...
Can you go into recovery mode? If yes try adb reboot recovery or reboot to bootloader if you have twrp.
this is XXXDDDAAA
Like what I explained on the first post mate, Recovery and Download modes are not possible/can't access them...
red_hanks said:
Hi Guys,
I have my N7100 for almost 3 months now and yesterday my son accidentally spilled water on it. The whole unit did not get wet, just the side where the volume rocker is. And it switched off by itself. I removed the battery and let it dry for a few hours. I switched it on and yes it did turn on but one volume button ( - ) is not working and the back and menu keys are not working also and it does not recognize any touch on the screen but when I used the S-Pen it recognized it. It's a rooted, heavy customized and tweaked phone. I noticed that it went to "safe mode", it was indicated on the lower left side of the screen and all installed apps were gone. DPi value went into default. I tried to install some apps, it went successfully but I can not find it in the apps drawer. I went into recovery mode, hoping to remove it in safe mode (foolish me, did not even tried to read or search on xda for possible fix), re-flash a custom ROM but same thing. I also found that the two water damage indicators inside the phone turned pink. The components inside were dry when I opened it, but because I am eager to fix it I tried using a hair dryer to (of course) dry it a little bit without damaging anything. After a while I put everything all together, switched it on and it now recognized "touch". But issues with volume key ( - ) and menu&back buttons still remain and it is still in safe mode. I decided to restore it to factory default via recovery mode, I cleared everything, reformatted system, data, all menus with the word "reformat' I pressed them all. Restarted the phone and it just stays on the logo where it says "Samsung Galaxy Note II GT N7100". Tried to go back to recovery mode but with no avail. I tried to go to Download mode also, I was able to make it to the part where it says "press volume up to continue; press volume down to cancel" I then pressed volume up but nothing happens. I pressed the volume up and same thing. Tried to charge it while it is switched off, the battery icon charging appeared, it shows the circle animation but it does not animate and it doesn't animate also like it's charging itself. Plugged it into my laptop and it doesn't recognize it. I've been reading some XDA articles and I only came acrossed one possible way to resurrect it...To get Download Mode without 3-button combo using homemade JIG. Well, I know for a fact that I need to send this to Samsung Service center but I am still hoping that someone here might help me or I may still find other alternative solutions without spending a lot of $$$ in sending it for a repair. Thanks in advance!
Click to expand...
Click to collapse
the problem is because your volume rocker key and power button are shorted due to water content.. i recommend that you take it to a service center before something worse happens... dont turn on your phone again until its cleaned properly and dried.. take it to proper service ... else its very bad for your device.. coz it can get permanently dead
Yeah, that's what I am going to do today. I surrender can't find any solutions anymore. Will keep you guys posted. Thanks anyway!
It's with Samsung Service Center now. It's OOW and they were able to find out that it was rooted (of course!) I paid Php1,200 under the table (on one of the technicians) and now it's In-Warranty again hahaha, but I have to leave the phone for a couple of days or weeks since they need to replace some hardwares. I think that's the best thing I can do instead of paying more for an OOW repair. sad sad sad..weeks without my phone with me...going back to my old phones for the meantime...

[Q] Hard soft brick???

Until two hours ago my I747 was running fine. I picked it up and attempted to unlock it and got nothing. I decided to try to pull the battery and do a reboot, it got to the KT747 splash screen from the kernel I run and went black. I tried booting into recover and download mode. Recovery mode gives me the little blue text at the top left of the screen indicating its booting to recover, black screen and nothing. Download mode pops the warning screen and 2 seconds later, whether I press up to continue or not, it goes black screen as well. I was running a rooted version of TW 4.4.2 with the TW version of Ktoonsez most recent kernel. I have been running this combination for over a week with no issues. I tried creating a 16gb debrick sd card but the phone doesn't want to stay on long enough to boot to anything. Any suggestions would be greatly appreciated. If there is any other information I can provide, please let me know and I will add it.
****edit for more info*****
I tried having odin open on the pc while i booted into download mode. Removed battery and usb cable from the phone, inserted battery while holding vol down and home. Download mode came up, pressed up to enter and quickly inserted the USB cable. Odin detected the phone and one second later shows it was removed. I have tried multiple USB cables as well.
****edit for still more info****
After several hours of cussing and google searching I came across a thread that described my issue perfectly. The solution turned out to be a stuck power button on the phone. Just like my phone, the one in the thread would boot immediately when the battery was inserted and shut off at the splash screen. Recovery and download mode both did the same, as does my phone. The site suggested rapidly tapping the power button to jar it loose. This did not work for me. Neither did the suggestion of sliding a finger nail into the gap between the chassis and power button. I went so far as to disassemble the phone and remove the physical button from the case. I put the battery back in and the phone booted immediately. The problem persists, the phone shuts off completely after a 2 - 3 seconds. This occurs with the battery in or with the battery out on USB power.
Sometimes messing around with the power button will work, but not always. Its only a temporary solution in most cases anyway.
The switch appears to have gone bad and will need to be replaced. I believe the part is only a few bucks if you want to DIY. Otherwise most local cell phone shops can do the repair relatively cheap from what ive been told.

[Q] Display and touch screen major issues following lollipop update.

Problems with my Samsung Galaxy Tab S 8.4 SM-T705:
1st: October 2014
2 weeks after buying, my tablet's battery drained overnight from 45% to zero. Next morning, I turned my tab on after charging to find out that the Tab starts but without any Samsung GAlaxy Tab S logo or Samsung Logo and the Screen has turned green, rendering it difficult to read in auto brightness mode or low brightness mode.
I restarted the device 2-3times and the device started working normally. This was my 1st device restart. I never used to power off the device before.
In 1st 6months, this greenish display problem n logo problem occured 2-3times, and i ignored it, because, it used to get resolved by itself with restart and I had no service centre in and around 50km to my work place.
2nd: January 2014
My device all of a sudden stopped working.. actually hanged.. I managed to turn it off but failed to restart it.
Later I realised that the device has restarted, but the screen was not responding when the screen blinked for a moment with the opening of book cover.. and the back cover of device was warm..
Googling taught me the way to access recovery screen n I opened recovery mode with "power+vol down+home key" and pressing vol down in recovery screen to restart tab.. again the tab started working fine..
3rd: Lollipop update: May 2015
I did Lollipop update. The device was smooth to operate at first. But gradually, i noticed that unlocking the tab failed to light up the display everytime, just the soft keys lighted up. But one day, the device freezed with no response from touch screen. I was unable to switch off the device also.. I had to drain the battery by playing music using S voice to turn the device off. "power+vol down+home key" too was not working.
On googling, I learned to reset device with "power+vol up+vol down" keys pressed together. finally the device restarted, but the device used to hang occassionally.
Googling let me know that i need to factory reset device upon firmware update for normal functioning, which i didn't do after update. so, I backed up my device, uninstalled many apps to make the device run a bit smooth and did a factory reset.. Resetting didn't improve the situation much, but now, the device display failed to light up on a regular basis on unlocking most of the time..
Now the situation is that, the device turns on, finger print scanner works, all apps n everything working, but display remains black, and touch screen is not responding.. using sidesync, everything on Tab can be accessed via laptop.
Tricks tried:
1) Factory reset
2) power+ vol up+vol down
3) power+ vol up+home key
4) power+ vol down + home key
5) Power off using sidesync and then restart
Results: All failure. Everything works but the display never lights up normally..
Plzz help....:crying::crying:
Bump. I'm starting to have similar problems with my SM-T800 running 5.0.2. I open the cover and the device fails to turn on. I press the power button and the screen stays black but the notification bar turns on. I can shake the crap out of the device and the screen stays black but I can see the notification bar flicker. Driving me batty.
If i had any problems like you guys, I would just return it to the place i bought it, for a refund or replacement or even a repair, post it to the service centre if it`s too far to travel too.
You problems sound like battery and or loose connector inside your tablet, it happens frequently on Samsung tablet for the connectors to come loose, if the tablet is dropped or twisted, no outside damage might be seen.
John.

Phone not bricked, but usually won't boot in any way

Hello everyone, thank you for your time.
TL;DR: Phone boots into download mode up until "Downloading...", recovery mode until "RECOVERY BOOTING," and can only boot right when I put the battery in. The battery is fully charged, and I can boot up until my home screen only once so far. Will a jig fix the issue, or should I try to get the phone replaced by TMobile warranty as I have before?
I have a Galaxy S3 from TMobile, and have been running CyanogenMod for about a year now. 2 days ago I flashed a nightly release, which I assume was unstable. Yesterday, my screen was on and then my phone turned off (low battery, but 99% sure it was a crash rather than a power off), and did not boot up again. After attempting to pull the battery out, charge for hours, turn on and plug in (in different combinations), the furthest I could get was a couple of seconds of the CyanogenMod Galaxy S3 logo initial boot screen (not the rotating splash screen).
I took my phone to TMobile today and was about to get it replaced until I realized I didn't mask the flashes.
The last time I was in an exact same situation with the same phone model, and my flash counter was still showing custom firmware, yet I did manage to get it replaced effortlessly, but I didn't want to risk what was a possible fluke again.
I get home, and here's my current situation.
The only way the phone boots up in any manner is when I take the battery out and the charger is not plugged in. Here are the scenarios I run into:
1. Boots into download mode, can press VOL + to get to the "Downloading..." screen, then shuts off 2 seconds after.
2. Boots into recovery mode, only up until "RECOVERY BOOTING", then shuts off.
3. Boot by pressing power button, plug charger in, shows grey battery icon.
3. Boots into download mode, can press VOL -, either shuts off, OR
3b) Only after tons of tries, it booted up all the way up until my actual home screen, then shut off.
I can't have the charger plugged in while booting (pc or wall), and I can only boot right after I put the battery in.
Are there any suggestions as to what I should do? I was thinking of buying a jig from Amazon, but I don't know if it is hard bricked or not. Should I just attempt to get it replaced under warranty once again, even though it shows the flash count?
Thank you very much!
FIX: STUCK POWER BUTTON PROBLEM
So, one thing I didn't check. Take the battery out of the phone, wait about a minute. If it buzzes as if its powering on, that means that your power button (either the actual button itself or the switch on the mainboard) is stuck.
Solution: Smack the power button with your battery until your battery has a (small) dent. If it doesn't work, smack it a couple more times. Took me 2 tries, second try, phone didn't buzz when I put battery in. I press the power button, works like new. Absolutely....ridiculous

Suggestions for things to try with bricked 5x

I was getting a notice on boot that said "Your device is corrupted and cannot be trusted," so I held down the power and volume down buttons to get it to fastboot mode. However, I couldn't get it to be recognized in fastboot on my laptop. At one point I selected "reboot bootloader" and the phone promptly shut off, black screen and completely unresponsive.
From that point on, I can't get it to do anything. I've tried holding power + volume down for 20 seconds and then plugging it in (as noted in another thread) as well as taking it apart and disconnecting the battery to see if that would reset it somehow. No dice.
Any other suggestions before I give up? Thanks very much in advance...
olm3ca said:
I was getting a notice on boot that said "Your device is corrupted and cannot be trusted," so I held down the power and volume down buttons to get it to fastboot mode. However, I couldn't get it to be recognized in fastboot on my laptop. At one point I selected "reboot bootloader" and the phone promptly shut off, black screen and completely unresponsive.
From that point on, I can't get it to do anything. I've tried holding power + volume down for 20 seconds and then plugging it in (as noted in another thread) as well as taking it apart and disconnecting the battery to see if that would reset it somehow. No dice.
Any other suggestions before I give up? Thanks very much in advance...
Click to expand...
Click to collapse
my device is for the most part of the time in qualcomm mode, but I managed to have access to the phone 3 days ago, installing apps & stuff, worked perfectly well until I had
the bad idea to try to charge it through the charger instead of charging it through my computer...
how I've done it?
I used the power reboot technic :
1) pressing the power button for 1 minute
2) doing nothing for some seconds
3) pressing the power button again for 1 minute
4) connecting the phone to the charger, the red light flashed
5) the battery icon appeared soon after
6) waiting for complete charge, phone rebooting
it worked once, so I suppose it can work again. fingers crossed.

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