My Galaxy S5 goes on a bootloop - Galaxy S 5 Q&A, Help & Troubleshooting

Good day XDA,
My phone went on a real havoc starting yesterday when it kept on rebooting in the "Samsung Galaxy S5 powered by Android" logo. It doesn't go past it without having the phone plugged into into a power source, either USB, powerbank or wall charger. After charging it 'til it goes full, it only takes few minutes to few hours before it goes to the same cycle again - and I have to plug it in again in order to use it properly.
What could be the problem? Your immediate response is greatly appreciated. Thanks everyone!

hi , i find when i experience this issue is when play store updates theme that i have in use at time , soon as i reboot i get bootloops ...i fix mine by pressing and holding vol down menu and power for as long as it takes for bootloader then press them same keys again but release before bootloader so that your phone boots as normal hope this helps

I know this is the combination for force reboot but sadly, that doesn't help. Thanks for the idea, though.

Tried clearing caches from recovery?
Battery still good?

I think the battery might be the problem. When I tried charging it, I went back and it was on 92% then few seconds later, it jumped to 100%. I tried booting it but with no luck, so I pulled the battery and upon putting it back, it dropped to 50%. I pulled and put it back again and it went to 84%. I'm thinking it might be the battery. I cannot boot into system or TWRP, only on Odin mode but I need to save the files saved on my internal storage as it has photos I haven't backed up yet.

Related

Samsung SM-T230NU : Won't boot, keeps flashing boot logo

So, I have a Samsung SM-T230NU. When I tried to power it on, it flashed for a split second the Samsung Galaxy Tab 4 logo and then went blank. I figured it was out of juice, so I plugged it in and let it charge for an hour or so.
When I came back, it was flashing and going dark.
I tried a different cable. As soon as power was applied, it flashed and went dark again.
Now, the boot logo is showing for an even briefer amount of time.
I am suspecting the battery or USB port. I don't have parts readily available to swap, however.
It may be worth adding, when I plug in the device, without touching any buttons, the screen starts flashing the Samsung Galaxy Tab 4 boot logo. I would guess a stuck power button, but the power button travels freely. When I unplug the tablet from the computer, the flashing stops.
Trying to boot it with power + volume up garners no response from the device.
Any ideas?
Having same issue here
Tried hard reset, no dice.
Tried opening the back to see if I can identify some loose connection, didn't see anything funny. I am not an electrician.
My sister's having the same issue with her T230NU. It still boots (it'll boot to the Samsung splash, but then it flashes off the screen in half a second; this repeats every 7 seconds), but only if it's plugged directly to the wall charger. She let it sit overnight to charge, and it's still got this issue. I'm pretty sure her battery was drained when the issue started occurring last night, but it doesn't look like the battery has charged much (if at all) since then.

My g900F is Hard Bricked - Help me please

Hello.
I've flashed my s5 with popwizh and everything went well. But after a full battery discharge the phone won't turn back on.
Battery is good and charger.
volUp+home+power doesn't do anything
volDown+home+power doesn't start download recovery
tried to boot from sdcard with a debrick img but no luck.
What more can I do? I don't want a paperweight please.
Charge it?
Battery is good and charged
If you can't get it to even turn on or enter download mode, there's not a lot you can do
Try removing everything like SIM and SDCard, remove the battery too and only connect the charger, see if you can get any signs of life at all
If not, it sounds like a hardware problem
Its to much of a coincidence to be a hardware problem, I refuse to give up just yet.
So far all the posts that resemble to my situation go on an on about flashing a debrick.img to the sdcard and boot from there. Dead boots and stuff.
I did this: http://forum.xda-developers.com/galaxy-s5/general/g900f-debrick-img-lollipop-t3240626 but without success
You said it won't even power on ?
How you going to flash anything without power?
I'm not saying 100% this is the problem, but most devices die when they are powered on, as that is when they are put under the highest stress
For example, I put away my treadmill in the corner of the room about 6 months ago, working - came to use it a few weeks ago, dead
Looks like pixies killed it, but actually it was when it was powered up again, just looks like it died when it was off
--
Is the phones power button working?
If you at least had a sign of life, we could go from there, but without any power at all, I have no clue
Battery connection contacts not bent or snapped?
From what I understand the phone won't turn on because the boot partition is gone, so if I manage to boot from the sd card to the download recovery, I can then use odin to flash it back to stock android.
Am i wrong?
Are you even getting the logo on screen when you turn it on?
Does the screen even light up?
You said there is no power at all, that's not a boot partition problem
Man if it's not turning on and there's no reaction when you press the power button then there's two things I can suggest : the power button is not working; or when the battery went completely dead its safety system thing could have turned on, which means you have to put it to charge as long as it takes for it to turn on again. Plus if your phone was exposed to water which I doubt its power controller could have gotten burnt
Have you plugged it into a pc? See if it registers with that and if it dies but still doesn't boot just try to leave it on the charger for a few hours even if it's fully charged. Then battery out for 10 secs wait... wait... wait... and turn it on plugged into the wall. Or at least try. If that still won't work samsung repair Centre for you
Still no life, I've tried everything said so far. My only hope is a debrick.img to boot from the sd card, which I don't have.
maskioice said:
Still no life, I've tried everything said so far. My only hope is a debrick.img to boot from the sd card, which I don't have.
Click to expand...
Click to collapse
Try to plug the phone to adb and see if it recognize it , if it's not i don't know maybe try another battery to see if its battery related or other hardware composant

[Q] S4 Stuck at AT&T Logo

My S4 started acting weird a couple days ago. It would occasionally self-reboot when I woke the phone by the home button or the power button. During those self-reboots, the AT&T logo seemed to stay longer (probably a couple minutes) than a normal reboot but everything was fine afterwards (could still use the phone for hours without triggering another self-reboot).
The situation went downhill quickly today and now it always gets stuck at the AT&T logo. Press and hold the power button will reboot the phone until the AT&T screen and the only way to turn it off is removing the battery. I can still charge the phone but sometimes instead of showing a charging battery icon, the phone will power on when I press the power button.
I've tried a few tricks (remove SIM and microSD card, pull battery, boot into recovery and wipe cache partition) but none worked. In the beginning, I did manage to boot past the AT&T logo a few times (self-reboot with home/power button still persisted) but no luck since this afternoon.
Since I haven't made any changes to the phone in the 2-3 weeks before the above problem occurred, can this be hardware-related (like a bad battery)?
And at this point, is it still possible to unbrick the phone without wiping the data?
Thanks for helping!
steppenwolf1014 said:
My S4 started acting weird a couple days ago. It would occasionally self-reboot when I woke the phone by the home button or the power button. During those self-reboots, the AT&T logo seemed to stay longer (probably a couple minutes) than a normal reboot but everything was fine afterwards (could still use the phone for hours without triggering another self-reboot).
The situation went downhill quickly today and now it always gets stuck at the AT&T logo. Press and hold the power button will reboot the phone until the AT&T screen and the only way to turn it off is removing the battery. I can still charge the phone but sometimes instead of showing a charging battery icon, the phone will power on when I press the power button.
I've tried a few tricks (remove SIM and microSD card, pull battery, boot into recovery and wipe cache partition) but none worked. In the beginning, I did manage to boot past the AT&T logo a few times (self-reboot with home/power button still persisted) but no luck since this afternoon.
Since I haven't made any changes to the phone in the 2-3 weeks before the above problem occurred, can this be hardware-related (like a bad battery)?
And at this point, is it still possible to unbrick the phone without wiping the data?
Thanks for helping!
Click to expand...
Click to collapse
It could be battery. However, most reboot caused by bad battery occurs when you run the apps not in the idle condition.
It could also be conflict in the rom (OS).
I do not think there a way to unbrick the phone without wiping the data (factory reset) unless the unbrick was caused by the battery failure.
sway8966 said:
It could be battery. However, most reboot caused by bad battery occurs when you run the apps not in the idle condition.
It could also be conflict in the rom (OS).
I do not think there a way to unbrick the phone without wiping the data (factory reset) unless the unbrick was caused by the battery failure.
Click to expand...
Click to collapse
Thanks! I'll get a new battery and see if it can work miracles.

[Q] wiped data by itself

happened on two different roms (RR and LOS)
battery < 10%
plug phone in to charge overnight (wall outlet)
find the phone bootlooping in the morning (probably after 4-6 hour charge) maybe not bootlooping, but stuck on boot animation
unplug, hold power to turn off and turn on
phone boots, but all app data has been wiped
really annoying problem that i hadnt had in over a month with RR as daily driver. switched to LOS and just happened again
I have a feeling this is hardware related now... and not necessarily related to the low battery state when plugged in... seems like battery charges up and then this occurs, but im unsure how to diagnose the issue... google has failed me on this one :crying:
Finally figured this out, hopefully helps someone else
After phone has rebooted on its own and is stuck on the boot animation, unplug the USB adapter. It will eventually boot and then reboot again on its own. Once it does boot the second time, it will be fine
The wiping was happening because I was holding down power to force the reboot. Should not do this
Very surprised that I am the only one reporting this on this device and that no one else has even heard of this. But ok

Stock X727 stuck in bootloop

Stock .21 firmware. Never tried any other ROMs. Battery went down to 1% last night, charged it on stock charger to 30% then moved it to a different charger. An hour after that I got a call, I hanged up and about 1 hour later I heard the phone buzzing every 30 sec or so, I looked at it and realized it's in bootloop. If I press Vol- and Power I can get it in fastboot and with Vol+ and Power in Recovery. Can't figure out what to do from there though.
Update: Pressed -+ and left it the whole day in that mode. Came home, and it booted up and looked fine for about 3 minutes then it shut down by itself. It seems to me that there's some sort of memory/storage corruption. Any suggestions on how to proceed from here?
Phone booted normally and I was able to use it for about 12 hours. I was doing a Whatsapp backup this morning when it shut down and got into the bootloop again.
nwaves said:
Phone booted normally and I was able to use it for about 12 hours. I was doing a Whatsapp backup this morning when it shut down and got into the bootloop again.
Click to expand...
Click to collapse
If you are using stock, immediately get rid of your usb c cable and buy a new one. There could be an issue with the cable that is causing problems with your battery.
Try to keep the charge percentage between 20% and 80%
Finally, your battery stats may be off. To resolve a battery stats issue you will need to reset the phone. Which again, if you are using stock and have never used a custom rom. You should definitely do a factory reset.
Same issue on 2 different chargers with 2 different cables that used to work well until now. None of the cables are stock. One of the chargers is stock, the other one aftermarket. My wife's S3 doesn't have any issues using the same cables and chargers. Issue seems to be happening when battery is full or almost full. Phone gets into a soft reset bootloop. I let it drain yesterday and was able to get in and do a factory reset. I then added my account and left it installing and updating apps overnight, while connected to the charger. Woke up with the phone off and after pressing power for 12 sec it got into the bootloop again. As you can imagine, it's impossible to keep the battery under 80%. Would it help if I try a custom rom? Maybe a new battery? I'm open to any suggestions as I really like this phone and can't find anything similar at a reasonable price.
So phone still reboots when battery is high. I can however get into Fastboot Mode and Tool All-In-One detects it. Tried to unlock the bootloader in the tool but it failed. I'm willing to try anything to get the phone back up and running but not sure where to start. Would really appreciate some guidance.
It really sounds like the battery is bad. You can buy a new battery for $8 .
If you replace the battery : Do NOT use a hairdryer to remove the screen. You will need a heat gun, they cost 7 dollars at harbor freight.
With a heat gun the lcd screen will practically fall off into your gloved hand.
I was going to offer to connect remotely and help with unlocking the bootloader and installing TWRP, Root and a Rom. But I sincerely believe that you need to get a new battery first.

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