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[Q&A] Samsung Galaxy S4 I9500 stuck in reboot loop

Hello,
I have an S4 , EVERYTHING STOCK- NO ROOT.
Yesterday while I was talking on the phone it restarted and entered a reboot loop.
I tried everything. Getting into safe mode, trying to hard reset, but before i can do anything the phone restarts at a constant time (like 3-4 secs) everytime.
Any ideas :/ ?
Thank you

Snake_A said:
Hello,
I have an S4 , EVERYTHING STOCK- NO ROOT.
Yesterday while I was talking on the phone it restarted and entered a reboot loop.
I tried everything. Getting into safe mode, trying to hard reset, but before i can do anything the phone restarts at a constant time (like 3-4 secs) everytime.
Any ideas :/ ?
Thank you
Click to expand...
Click to collapse
Go here as this is your problem 100% : http://forum.xda-developers.com/showthread.php?p=57231620

910F Freeze while booting

Hi everyone,
I recently bought a Note 4 (910F) with a little error, that I thought I could solve.
After flashing stock firmware with Samsung Kies (+Original FWwith Odin) the phone starts booting normaly. After a few seconds and hearing/seeing the samsung logo, it starts installing that 27 default apps..
During the installation it suddenly freezes, vibrates twice and then it restarts... Now it is stucked in a loop.
So, I installed TWRP, wiped everything and I installed a CFW. Now it starts booting but during the Samsung Logo it freezes, vibrates twice and reboots. Now it is stucked in a loop.
Now I have no clue what to do. Can you guys help me out?
P.S.: It could be possible that I solve this problem if I restore a TWRP-Backup from an other Note 4? Can someone upload this files?
Thank you!
Video demonstration:
https://youtu.be/z4oiwWCr0cg

gersp said:
Hi everyone,
I recently bought a Note 4 (910F) with a little error, that I thought I could solve.
After flashing stock firmware with Samsung Kies (+Original FWwith Odin) the phone starts booting normaly. After a few seconds and hearing/seeing the samsung logo, it starts installing that 27 default apps..
During the installation it suddenly freezes, vibrates twice and then it restarts... Now it is stucked in a loop.
So, I installed TWRP, wiped everything and I installed a CFW. Now it starts booting but during the Samsung Logo it freezes, vibrates twice and reboots. Now it is stucked in a loop.
Now I have no clue what to do. Can you guys help me out?
P.S.: It could be possible that I solve this problem if I restore a TWRP-Backup from an other Note 4? Can someone upload this files?
Thank you!
Video demonstration:
https://youtu.be/z4oiwWCr0cg
Click to expand...
Click to collapse
Probably faultly hardware

How can I found out what is exactly wrong?
Maybe getting a log file of the booting procedure?
Could anyone upload a TWRP Backup of a running system?

Samsung s4 bootloop even after a stock Odin flash

Hi, im having an issue with my Galaxy S4 I9505.
I was having random reboot issues where the phone would boot up and then turn back off.I decided to try flashing the stock ROM via Odin. I tried flashing the stock ROM many times, still no luck . So i then tried flashing a custom Touchwiz ROM (THOR) via TWRP and it worked . It booted up normally and came up to the setup screen. After about 5 minutes of using it, the screen went off and carried on rebooting. I've tried many different ROMs and now the phone won't boot up at all (bootloop) .
Please reply as i've been trying to fix this problem for about 3 days now.
Your help will greatly be appreciated.

By bootloop you mean it constantly reboots or it gets stuck at the boot animation?
If it constantly reboots, it may be a problem with the power button circuit of the button itself.

Pwnycorn said:
By bootloop you mean it constantly reboots or it gets stuck at the boot animation?
If it constantly reboots, it may be a problem with the power button circuit of the button itself.
Click to expand...
Click to collapse
it constantly reboots and sometimes gets stuck.

Pwnycorn said:
By bootloop you mean it constantly reboots or it gets stuck at the boot animation?
If it constantly reboots, it may be a problem with the power button circuit of the button itself.
Click to expand...
Click to collapse
What do you think I should try doing?

FazXD said:
What do you think I should try doing?
Click to expand...
Click to collapse
Well, I'd say it's definitely a hardware issue. Could be your power button, which is an easy fix. But anything else might require a whole motherboard replacement.

Yes i was thinking of buying a new mootherboard

My 6P is on a bootloop

Hi,
I was using my phone when it suddenly turned off and got stuck on a bootloop, every time the bootup stops a the white Google logo at the start. I accessed Fastboot and can't do anything beyond that, it doesn't launch recovery. I tried to flash it with the latest google images but to no avail, the process goes as usual but when the phone restarts it gets stuck gain.
What should I do? Is this the Nexus 6P's bootloop problem I've been reading about on some blogs?
_________________________________________
Update : this solution helped me boot my device and it's working again https://www.xda-developers.com/nexus-6p-bootloop-fix

MrMestiri said:
... What should I do? Is this the Nexus 6P's bootloop problem I've been reading about on some blogs?
Click to expand...
Click to collapse
Yes, BLOD and no recovery mode. It is a hardware issue. Nothing can be done from a software/flashing perspective. Hopefully you have a warranty of some type. Otherwise it's time for a new phone.

Sometimes Bootloob

Hey guys,
I got my Mi A1 yesterday and instantly unlocked the bootloader and rooted it.
Now I have sometimes the problem, that the phone won't start and get stuck in Bootloop. To fix this I just have to hold the power button and restart it, but it's just annoying.
Please help,
Philipp

Same here.

You're phone is stuck at boot process, not bootloop. Bootloop is when phone automatically and endlessly restarts by itself. And yes, it happens from time to time with Magisk. If my phone doesn't boot in one minute, I restart it again and then it boots fine. Usually you don't need to restart the phone very often, so it's only slight annoyance. You can try to reach the Magisk dev, though he probably won't provide any update/fix in the coming 4 months.

barni090 said:
Hey guys,
I got my Mi A1 yesterday and instantly unlocked the bootloader and rooted it.
Now I have sometimes the problem, that the phone won't start and get stuck in Bootloop. To fix this I just have to hold the power button and restart it, but it's just annoying.
Please help,
Philipp
Click to expand...
Click to collapse
Unroot it relock and flash stock rom if it doesn't work apply for exchange/refund whatever the site offers u instead of repairing it [emoji3]
Sent from my Mi A1 using Tapatalk

No need for repair or panic, happens to me too about 10% of all boots, sometimes it will even boot and stay black. I count yellow lines if I need the phone asap, android boots after 20 of those.

Thanks a lot for your help, maybe it will be fixed in a new Magisk version. But you are right, it does not happen really often, so it's fine I guess.