Boot loop - Samsung Galaxy Alpha

Hello. I have a boot loop issue with my SM-G850F. It happens immediately after camera launching, boot loop can last for minutes, but eventually the phone turns on and works alright except camera. Sometimes camera may work fine for some time but later it goes to boot loop again. Also if i restart my phone manually it also goes to boot loop. I tried to reflash it using Odin, different firmwares, home and factory, Kitkat and Lollipop, i did it with data and cache wiping from recovery every time. When Odin finishes it's job and a phone tries to reboot after reflashing - here boot loop starts again. But when i reflashed 4.4.4 and got a Lollipop OTA update, my phone got back to life, camera worked fine, it restarted fine with no boot loop anymore. But after about 6 months it happened again. The same situation, wiping didn't help, reflashing didn't help, and again reflashing 4.4.4 + OTA update did help, i don't know for how long. What may be the reason? I assume it's not a camera problem, OTA update shouldn't fix it, and it's not a battery for the same reason. What do you think?

ThorosPWNZ said:
Hello. I have a boot loop issue with my SM-G850F. It happens immediately after camera launching, boot loop can last for minutes, but eventually the phone turns on and works alright except camera. Sometimes camera may work fine for some time but later it goes to boot loop again. Also if i restart my phone manually it also goes to boot loop. I tried to reflash it using Odin, different firmwares, home and factory, Kitkat and Lollipop, i did it with data and cache wiping from recovery every time. When Odin finishes it's job and a phone tries to reboot after reflashing - here boot loop starts again. But when i reflashed 4.4.4 and got a Lollipop OTA update, my phone got back to life, camera worked fine, it restarted fine with no boot loop anymore. But after about 6 months it happened again. The same situation, wiping didn't help, reflashing didn't help, and again reflashing 4.4.4 + OTA update did help, i don't know for how long. What may be the reason? I assume it's not a camera problem, OTA update shouldn't fix it, and it's not a battery for the same reason. What do you think?
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Maybe a hardware issue? Did you try ozcan or epsil rom? Do you have the same issues on those roms?

BarryPooter said:
Maybe a hardware issue? Did you try ozcan or epsil rom? Do you have the same issues on those roms?
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After several hard resets the problem has gone, i don't know for how long though. So i have no idea is it a hardware issue or not. May it be a flash memory problem?

Related

[Q] CM9 KANG reboot issue

I flashed the latest builds from both Coffebeans - http://forum.xda-developers.com/showthread.php?t=1547778 and Pershoot - http://droidbasement.com/galaxy/roms/cm9/p4wifi/ and I'm having the same issue with both of them. The problem is my Tab will randomly reboot then get stuck on the boot animation and just sit there forever. It's already happened twice now where my Tab rebooted sometime at night and sat at the boot animation until the battery was dead. I did do a full wipe before flashing.
Does anyone else have this issue?
Thanks.
i've ran both of those without any problems. did you come from another custom rom or from stock firmware?
foliage green said:
i've ran both of those without any problems. did you come from another custom rom or from stock firmware?
Click to expand...
Click to collapse
I came from Task650's version 14, but I've been flashing the CM9 KANGs for a while and haven't had this issue.
i have had some strange reboots...but never gotten stuck on the boot animation like that..thats the bad part about not having a battery to yank unfortunately
Sent from a Gtab 10.1 running Build 30
Well whenever I can't get something to work right, I Odin stock firmware on it and restart the custom rom process from scratch. Having a clean slate is time consuming and might not even be necessary but it's the only full proof way I can get things to work.
I wiped everything and also formatted /system in CWM and then flashed Coffeebeans latest build from 4/8. I haven't had the reboot and stuck boot animation issue, but now I'm having an issue where every time I charge the tab fully it won't wake up. I have to hold the power button to reboot it. It seems like it's the deep sleep issue, but it's been fine leaving it overnight as long as it's not connected to the charger.

Nokia reboot problem when trying to update

Hello!
I have a strange problem with my phone it wont update to latset firmware without get in some kind of boot loop.
The phone was runing the lastest firmware 1232.5962.1314.0017 before the problems started, it all started when some systems apps like camera, settnings, messeging. etc, stop working. All that showed up when entering the apps was a black screen say something like "reconnecting" and then it jumped back to home screen.
So I restarted the phone but then went in som kind of reboot loop where it wouldent go past the nokia logo. I tried everything soft reset, hard reset. The last thing I tried was to reflash the phone, I tried diffrent ROMs and it finaly worked with the ROM 059Q5C6 RM-821 GLOBAL BLACK SWAP.
The phone is runing now and almost all functions work exept camera and automatic brightness (all that I discoverd so far).
Its currently running the 1231.5951.1249.1004 firmware.
But like I said now when I try the update the phone it goes to the same boot loop state.
What should i try next?
Is the thread in the right place?
Strepsil said:
Hello!
I have a strange problem with my phone it wont update to latset firmware without get in some kind of boot loop.
The phone was runing the lastest firmware 1232.5962.1314.0017 before the problems started, it all started when some systems apps like camera, settnings, messeging. etc, stop working. All that showed up when entering the apps was a black screen say something like "reconnecting" and then it jumped back to home screen.
So I restarted the phone but then went in som kind of reboot loop where it wouldent go past the nokia logo. I tried everything soft reset, hard reset. The last thing I tried was to reflash the phone, I tried diffrent ROMs and it finaly worked with the ROM 059Q5C6 RM-821 GLOBAL BLACK SWAP.
The phone is runing now and almost all functions work exept camera and automatic brightness (all that I discoverd so far).
Its currently running the 1231.5951.1249.1004 firmware.
But like I said now when I try the update the phone it goes to the same boot loop state.
What should i try next?
Is the thread in the right place?
Click to expand...
Click to collapse
Same thing happens to my phone!! Did not think that it could be the latest firmware (1308 for me) could have caused it since I don't think there are a lot of us affected by it and my phone has been running fine for months after the update! I've restored 5 times, by the time I thought to flash it, it wouldn't charge anymore.... I'd sent mine for repair now... Have you fixed yours?

[Q] Phone shutting down/rebooting itself and bootloop

I'm running CM 10 on my EVO. I haven't updated it in a while so it's probably 10.1 or something. Random shutdowns would happen for no reasons sometimes when using the new YouTube app. Then yesterday when I turned on Bluetooth, the phone shutdown by itself. When it reboots it says Android is upgrading... and optimizing apps. Then it reboots and gets stuck in a bootloop. I can boot to bootloader and recovery. I've wiped cache, Dalvik cache, and nothing seems to fix it. Sometimes it boots and I can enter my PIN and use the phone for a few seconds until it reboots itself again. Also, there has been discolored streaks near the sides of the screen. When using the phone they're black, but when the screen is booting they're red on top of the black.
Does anyone have experience with such a problem? I want to try fixing this so I can backup my data before I reflash the ROM or anything.
If it's an older CM release that could be part of your problem. I would update to CM 10.2 and see if the problem persists. I'm currently running the 8/24 IRC build and it has been rock solid. If you continue to have issues you may have a hardware problem.
Sent from my EVO using XDA Premium 4 mobile app
Thanks for the reply. I did a wipe/factory reset from recovery after doing a backup. Everything seems to be okay now. I'm flashing CM 10.2 8/30 from the IRC to try it out.
I have a backup of the state when it wasn't booting properly. I was wondering if anyone had a similar problem with the turning on Bluetooth and then the shutting down by itself and bootloop. I want to be able to recover files from that state.

Galaxy s7 (G930A) At&T Root problem

Hi, I rooted my galaxy s7 from att using this method, https://www.youtube.com/watch?v=GNInTlCpv8E
It worked perfectly and I had my new rooted phone! So a couple of days after the root one of my apps stop working and I cannot get it to start working, it was a pushup workout app, so I restart my phone and it gets into a boot loop stuck on the at&t logo. I was very sad as I did not back anything up so I wiped my phone using the recovery boot and signed in and re-flashed the root rom through odin and re-installed supersu and it worked perfectly again. The next day I have the same problem but this time with snapchat and instagram so I knew what was going to happen and I restarted and it did the same thing. This time when I went into recovery boot I noticed "dm-verity verification failed" in red at the bottom. As of now I am just going to do what I did last time and wipe and re-flash as I made a backup this time and just restore my phone and hope it doesn't happen again. If someone could please explain why this is happening and maybe help me fix it I would be so happy thank you!
UPDATE 7/26/16: I re flashed the ap root file with odin without doing a factory reset and it is still stuck in a boot loop, meaning I have to do a factory reset to get it out.
Mine is doing same thing. I used chain fires root. Everything went perfect. Then couple days later apps started saying they had stopped and phone started freezing. Every app I tired to open would say they had stopped. Then it constantly kept saying Google play services had stopped. I tried to reboot and stuck into bootloop everytime. Rooted again same thing happened again. U ever find a fix or anyone no how to fix this

Galaxy S9+ G965F Bootloop problem, need help

I woke up with a black screen and unresponsive I soft reset and booted back up just fine, fast forward 2 days, apps are constantly crashing and often seemingly randomly the phone will restart and go into a bootloop anywhere from 1-5 minutes before it finally boots. Sometimes I get lucky and can use my device just fine for a few hours, then apps will crash and stuck back in bootloop.
I have factory reset in recovery, and also flashed latest stock rom via odin, I am new to this and this was my first time I might add, it passed but it hasn't resolved the issue, is there anymore steps with odin or anything else I can do to repair this? The device isn't rooted if that helps.
I think that's a motherboard issue
You could try installing a custom rom

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