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Hey folks,
being stuck in bootloops is one of the most annoying things for us powerusers.
Therefore I want to investigate a little bit deeper into this topic.
The normal procedure of "solving" the bootloops for me was flashing a base Gingerbread ROM by Ficeto (Mostly JVT) via ODIN, disabling Lagfix, entering CWM & flashing ICS again.
But one time (about 2 weeks ago) I had no time to go through this process, so I took the battery out of the phone (to abord the bootprocess & shut the phone down), placed it in again & putted the phone back in it's pocket.
About one hour later when I looked at it by accident (wanted to check the clock & forgot that it was bootlooping) the phone was fully booted & back to normal.
so the last 4 times my GT-i9000 (running nightlys of CM9) got stuck on the Bootscreen coming again & again, I took the battery out, placed it in again & let it bootloop for a while & after about 20 minutes baaam my SGS was properly booted?!
So my question/request is for you if you are stuck in bootloops:
[highlight]Please try the following:
1. Take the battery out & place it in again
2. Start the phone again
3. wait, wait, wait & be patient
4. Tell me if the problem solved itself or if after more than 2 hours of bootlooping nothing happened [/highlight]
if it didn't please tell me how long you've waited, what caused the looping & which nightly etc you where running!
just for clarification: with bootloops i mean being stuck on the Samsung Galaxy S / Cyanogenmod Screen where it is written in plain text which appears before you can enter recovery or the normal bootanimation appears. When my phone was/is bootlooping I also have no chance to enter Recovery. & I also know that it sounds strange that BL should solve themselves, but please try it!
[edit] I also read some time ago that there where other people with the same experience, this is why I opened a thread & I'm sure this is not a thing related to only my phone
I experienced something similar , also with CM9 . Phone working very hard , so i restarted it , but after the Galaxy S GT i9000 screen , the CM9 blue boot loaded for about 10 minutes and nothing , so I decided to enter in recovery ( I removed the battery , waited a minute , inserted it in the phone , and the recovery didn't work . Waited 10 minutes , and after that the recovery worked , and I reflashed CM9 , because it was the only rom I had in the internal SD card .
About two hours without any improve... CM9 build 12 working every time, build 15 and 16 without chance. Odin is my honey
Thomas. said:
About two hours without any improve... CM9 build 12 working every time, build 15 and 16 without chance. Odin is my honey
Click to expand...
Click to collapse
It would be nice if you could tell exactly what you did, if more people would do that we might be able to figure out why this thing happens to you and why it doesn't happen to me.
when i flash:
*phone not connected to pc or charger
*running stock kernel
*16 gb micro sdcard mounted
*all sorts of battery percentage, from 10 to 100 percent
*reboot recovery by terminal command "reboot recovery"
*format /cache
*flash the build from /mnt/sdcard/download
*flash gapps from same location
*run a script that wipes dalvic, removes several sounds and unwanted apps and fixes permission
*format /cache again
*reboot
I know this is a pretty weird procedure and it's in no way an advice to anyone, it is just an example of giving details that might lead to a common factor for bootloops.
Taptalked u see
Ok briefly (as I'm not home at moment) I have had bootlooploop on 2 separate occasions. Both times I left for 35 mins looping & then removed battery.
After 20 mins I put battery back & same thing - looping for around 30 mins.
No recovery available on both occasions. I tried taking out Sim card & external SD but this didn't make any difference.
So I just flashed CM7 kernel via Odin = problem fixed !
BLADESMAN1889 said:
Ok briefly (as I'm not home at moment) I have had bootlooploop on 2 separate occasions. Both times I left for 35 mins looping & then removed battery.
After 20 mins I put battery back & thing - looping for around 30 mins.
No recovery available on both occasions. I tried taking out Sim card & external SD but this didn't make any difference.
So I just flashed CM7 kernel via Odin = problem fixed !
Click to expand...
Click to collapse
Thanks for your post!
What caused the bootloops?
fipsib said:
Thanks for your post!
What caused the bootloops?
Click to expand...
Click to collapse
1st time I got bootlooploop was [15/Jan/2012] I was trying to boot into Recovery via power button so I could upgrade from Build 12 to Build 13.
2nd time [2/April/2012]I was on AOKP B28 & I had booted into Recovery to wipe cache & dalvik & after successfully wiping, the bootloop came when I hit the 'Reboot' option to start the phone.
(AGAINST better judgement - since first bll I had avoided wiping cache & dalvik)
jep. I also had bootloop problems by wiping cache and dalvik cache. I was on SlimICS flashed midnight kernel. Everything was working just right but CPU scaling had some bugs for me so i removed init.d scripts went into recovery wiped cache and dalvik cache...and boom....bootloop :/. Now I'm back on CM7 because this is a rather annoying problem....
BLADESMAN1889 said:
Ok briefly (as I'm not home at moment) I have had bootlooploop on 2 separate occasions. Both times I left for 35 mins looping & then removed battery.
After 20 mins I put battery back & same thing - looping for around 30 mins.
No recovery available on both occasions. I tried taking out Sim card & external SD but this didn't make any difference.
So I just flashed CM7 kernel via Odin = problem fixed !
Click to expand...
Click to collapse
Can you link me CM7 kernel for Odin? thanks
farid993 said:
Can you link me CM7 kernel for Odin? thanks
Click to expand...
Click to collapse
Yep, here it is,
View attachment 1012442
This worked for me both times
[remember to leave UNCHECKED
Ensure Reboot, Repart, F-Reset]
Then boot into Recovery and restore Nandroid - no need to be flashing gingerbread.
Ever since the first nightly, I have been plagued by bootloops. Usually formatting /system, /data and /cache helped. But not this time. I tried to install the 19/4 nightly, and had gotten into bootloops. Yes, I have used custom kernels before.
However, even clearing init.d, clearing NSTools, flashing from FixRecovery, the cm7 kernel, even flashing with Heimdall (flashing stock kernel and custom kernel) could not get me out of the loop. Note: I tried the method as described in the OP.
What I finally did was format everything, excluding ext-sd. Format internal SD as well, after backing up some files. And BAM! That was it! Something on the SD corrupted the install. No bootloops, can even install custom kernel, no problem.
So, that may be a tip for people not able to get out of the bootloop, or experiencing constant bootloops.
Hey it's under Devs investigation now:
http://forum.xda-developers.com/showthread.php?t=1627689
My galaxy with CM9 started to bootloop yesterday, no way to enter recovery
I'll make you know in a couple of hours if something change leaving it on ..
If nothing change, is there a place where I can find CM9 kernel to flash with odin ?
thanks
Read Bejda's post, one post above yours.
Taptalked u see
wooops didnt see the second page of the thread
anyway leaving it there to bootloop didnt solve the problem
flashing semaphore kernel seems yes
Before I startת I tried to find this problem also search on Google and here but could not find any information about this problem.
This night I did not put the device to a charger because he had already 90% battery, so I left it disconnected,in the morning I got up I saw the phone is turn off, I tried to turn the phone light up and the ATT screen turn on,
I went and when I came back after 10 minutes I saw that the phone is still stuck on the "Galaxy S" screen.
I removed battery, changed, and it's still stuck.
I'm running version CM7.1,
The phone can get into the recovery menu.
Can anyone help me?
I do not understand in the android system and I don't have any backups of my pictuers...
Any chance to save the phone?
update: I search for a solution, and found on the CWM the option of "Mount USB storage" and I copied my pictures to my computer...
so now my new question is how can I get the phone to turn on again? only format and install new rom?
I can use CM7.2 zip file and install via the recovery menu?
you can go to cwmr and can do a data wipe which will uninstall all your apps and data but will not touch your sdcards
You won't lose your pictures on the sd card. If you are still stuck, try wiping dalvik cache from recovery
Sent from my ICS Samsung Captivate
I have a similar problem. Like eidoll32, I did not plug in my cappy and when I went to turn it on the next day, I was only able to get a boot loop at the AT&T screen. Currently, I cannot get into recovery, but only download mode.
I originally rooted the phone with the Galaxy_One_Click_Root tool, and installed CyanogenMod 7.1 for the captivate, when CM7.2 went to RC1, I flashed that from CWM, doing a full wipe. Later I wanted to try ICS, so I flashed AOKP - captivatemtd - M5 b30, doing a full wipe (twice).
That's where I was when this happened, and where I am now.
I've been looking all over this site but I can't find anything. I suppose that it's partly because I'm not sure about the problem myself.
A couple of months back (maybe more) I upgraded to the ICS infinitum rom (blue version) with midnight kernel. It was great - the phone worked fine. Well I'm exaggerating, it ****ed up every once in a while. Programs would automatically shut down and it would get really slow after a while. But all in all it wasn't bad, and it was stable enough for me most of the time....
Then, last Thursday everything seemed to go apart, every program on the phone was shutting down. So I thought I'll just restart and it will be fine. When I did, the phone did not come back on. the kernel would load and then it was stuck on the start-up animation in infinite loops.
Now, to be frank, this isn't the first time this has happened. So I didn't panic. Last time I just used the CMW recovery to re-install the kernel and the rom (I keep the files on the sd card). But this time, I wanted to try to avoid the factory wipe for as long as I could, and try finding a different option, knowing that if all else fails, I have something to revert back to.
Then I did the mistake of deleting the init.d file without re-installing anything. I wanted to, but accidentally clicked on the 'reboot now' option. And then all went to ****. The kernel didn't load. I went to recovery and it couldn't mount the sd card so I couldn't re-install it.
I tried flashing a new kernel using odin, and it did get me a bit better: my CWM recovery can read the sd. However, I still can't mount the system. Even worse, when I get to the infinitum zip roms and re-installing it brings up the status 7 error (which, after searching, seems to come up for different reasons for each person)
Despite installing a new kernel, when I reboot the phone now it doesn't load the kernel anymore, it just stays stuck on the welcome screen. I tried using the recovery to re-install a different kernel, it worked, but the phone still won't start - it now automatically skips to the recovery mode. I don't know if I should try flashing a rom through odin, and I'm too afraid to try anything at all now...
Can anyone help me? Is there any way to restore the init.d file or maybe that has nothing to do with my problem?
uvii said:
I've been looking all over this site but I can't find anything. I suppose that it's partly because I'm not sure about the problem myself.
A couple of months back (maybe more) I upgraded to the ICS infinitum rom (blue version) with midnight kernel. It was great - the phone worked fine. Well I'm exaggerating, it ****ed up every once in a while. Programs would automatically shut down and it would get really slow after a while. But all in all it wasn't bad, and it was stable enough for me most of the time....
Then, last Thursday everything seemed to go apart, every program on the phone was shutting down. So I thought I'll just restart and it will be fine. When I did, the phone did not come back on. the kernel would load and then it was stuck on the start-up animation in infinite loops.
Now, to be frank, this isn't the first time this has happened. So I didn't panic. Last time I just used the CMW recovery to re-install the kernel and the rom (I keep the files on the sd card). But this time, I wanted to try to avoid the factory wipe for as long as I could, and try finding a different option, knowing that if all else fails, I have something to revert back to.
Then I did the mistake of deleting the init.d file without re-installing anything. I wanted to, but accidentally clicked on the 'reboot now' option. And then all went to ****. The kernel didn't load. I went to recovery and it couldn't mount the sd card so I couldn't re-install it.
I tried flashing a new kernel using odin, and it did get me a bit better: my CWM recovery can read the sd. However, I still can't mount the system. Even worse, when I get to the infinitum zip roms and re-installing it brings up the status 7 error (which, after searching, seems to come up for different reasons for each person)
Despite installing a new kernel, when I reboot the phone now it doesn't load the kernel anymore, it just stays stuck on the welcome screen. I tried using the recovery to re-install a different kernel, it worked, but the phone still won't start - it now automatically skips to the recovery mode. I don't know if I should try flashing a rom through odin, and I'm too afraid to try anything at all now...
Can anyone help me? Is there any way to restore the init.d file or maybe that has nothing to do with my problem?
Click to expand...
Click to collapse
I suggest flash 3-file GB rom via odin with ticked re-partirion and phone bootloaderupdate.
First of all init.d has nothing to do with the boot of kernel and ROM itself. It's just like autostart in Windows, so if it's missing it shouldn't cause problems.
My solution is to flash a complete stock Gingerbread ROM using Odin. You can get them at sammobile.com. Then afterwards flash a custom kernel and then whatever you like.
If you need help,feel free to ask me
Sent from my Gameboy Color
Yes! Thank you! That worked!!
It happened again! just 10 days later.
Is the Infinidtum rom ****ed up in any way?
it's stuck on the loading part of the rom
Hi.
Since yesterday my galaxy s3 lte i9305 does not boot anymore, the blue cyanogenmod logo keeps turning for hours. I can however still go to the recovery (which was a few month old cwm). I completely wiped the phone (both caches, data, internal sd, boot, firmware etc ... all but the modem) and reinstalled the newest cwm and the newest nightly build three times now using heimdall and the external sd (connected my external micro sd to my computer sd card reader via adapter and put the zip on it). Just now I installed twrp-2.8.5.0-i9305 as a new recovery and installed everything again, but everytime - and also now - despite the seemingly successful installation, the phone is stuck at the cyanogen bootlogo.
Any ideas on how to get my phone running again?
Cheers
ScPo said:
Hi.
Since yesterday my galaxy s3 lte i9305 does not boot anymore, the blue cyanogenmod logo keeps turning for hours. I can however still go to the recovery (which was a few month old cwm). I completely wiped the phone (both caches, data, internal sd, boot, firmware etc ... all but the modem) and reinstalled the newest cwm and the newest nightly build three times now using heimdall and the external sd (connected my external micro sd to my computer sd card reader via adapter and put the zip on it). Just now I installed twrp-2.8.5.0-i9305 as a new recovery and installed everything again, but everytime - and also now - despite the seemingly successful installation, the phone is stuck at the cyanogen bootlogo.
Any ideas on how to get my phone running again?
Cheers
Click to expand...
Click to collapse
I would try a factory reset from recovery and see if that helps. You did check the md5 for your downloads right?
Otherwise I would install the stock rom, then try again, this time(making sure you have a compatible recovery) just wipe caches, data, and format system, and then install CM
noppy22 said:
I would try a factory reset from recovery and see if that helps. You did check the md5 for your downloads right?
Otherwise I would install the stock rom, then try again, this time(making sure you have a compatible recovery) just wipe caches, data, and format system, and then install CM
Click to expand...
Click to collapse
I did do the factory reset. I just wiped the areas separately as well. Anyway, I took your advice and installed the latest stock rom. Now I got the Samsung logo slightly flashing blue for hours instead of the cyanogenmod logo. Did not do anything else.
I suspect that its a battery issue in some way. The last weeks the phone lost its charge very quickly very often (not constantly though). Yesterday, the phone was in my pocket and then went off. It went into the constantly trying to restart despite the lack of batteries state until I removed the battery. Maybe that gives any clue?
ScPo said:
I did do the factory reset. I just wiped the areas separately as well. Anyway, I took your advice and installed the latest stock rom. Now I got the Samsung logo slightly flashing blue for hours instead of the cyanogenmod logo. Did not do anything else.
I suspect that its a battery issue in some way. The last weeks the phone lost its charge very quickly very often (not constantly though). Yesterday, the phone was in my pocket and then went off. It went into the constantly trying to restart despite the lack of batteries state until I removed the battery. Maybe that gives any clue?
Click to expand...
Click to collapse
Try booting into stock recovery, then factory reset from there. Last time I went back to stock I had a bootloop until I did this, then it booted properly. If that doesn't work, maybe try new battery.
Have you tried booting up whilst plugged in to a usb charger?
noppy22 said:
Try booting into stock recovery, then factory reset from there. Last time I went back to stock I had a bootloop until I did this, then it booted properly. If that doesn't work, maybe try new battery.
Have you tried booting up whilst plugged in to a usb charger?
Click to expand...
Click to collapse
Thanks for your helpful input.
I did what you said, even tried it twice now. Phone is still booting after 20 minutes now. I also tried booting up while charging the phone, yes. That was my standard procedure actually, but nothing changes when I unplug it. I don't have a different battery and I am wary of buying one just for the sake of trying. Tried that when my galaxy s 1 broke down and that didn't save the phone. At this point I am contemplating if the phone (s3) is broken now or not. It still reliably boots to the recovery, but it doesn't do much else. How are the chances?
Or has anyone any idea on how to proceed?
ScPo said:
Thanks for your helpful input.
I did what you said, even tried it twice now. Phone is still booting after 20 minutes now. I also tried booting up while charging the phone, yes. That was my standard procedure actually, but nothing changes when I unplug it. I don't have a different battery and I am wary of buying one just for the sake of trying. Tried that when my galaxy s 1 broke down and that didn't save the phone. At this point I am contemplating if the phone (s3) is broken now or not. It still reliably boots to the recovery, but it doesn't do much else. How are the chances?
Or has anyone any idea on how to proceed?
Click to expand...
Click to collapse
Try to boot into recovery. Do a factory reset then boot straight into download mode and flash stock rom. You might have to redownload the firmware it could be corrupted.. If that doesn't work then you might have to send it in. It might cost about to fix. Or go to your local phone repair shop and see if they could fix it for cheaper
Sent from my GT-I9305 using XDA Forums
my galaxy note 4 (sm-n910t) caught in bootloop . i dont know what caused it. the phone simply restarts upto first bootscreen, ie upto 'samsung galaxy note 4' and then vibrates and then restarts.this process continues upto battery is down or i pull out battery.the phone is not entering to recovery mode but enters to download mode.
i have tried installing stock rom from sammobiles but it won't help.i have also installed custom recovery twrp but that also won't help to enter to recovery mode,
i am trapped pls help..
You didn't mention how you tried to install the stock ROM . Did you use Odin?
I just fixed mine with the same issue. I was able to boot into recovery and download mode but mostly download mode without bootloop when I had the usb cable plugged in. I used ADB when I could to boot into download mode, but the buttons worked too. Trying to restart the phone only lopped after the Google screen.
I followed several guides here to flash stock with Odin and wipe cache etc but none solved my boot loop issue. almost gave up but there is a video on You Tube that said the battery warping in the cause of the boot loop. The battery, after/during quick charge, may heat up and change shape causing the issue. Today I installed my new battery purchased on amazon and no more issues.
Now I am on stock and have to find a good rom.
If you do decide to flash back to stock there are a lot of good guides. You may find yourself stuck on the T-mobile screen for 15 minutes when booting for the first time but that is ok. If you still boot loop after installing stock and wiping cache I would try the battery.
Nabeel mhd said:
my galaxy note 4 (sm-n910t) caught in bootloop . i dont know what caused it. the phone simply restarts upto first bootscreen, ie upto 'samsung galaxy note 4' and then vibrates and then restarts.this process continues upto battery is down or i pull out battery.the phone is not entering to recovery mode but enters to download mode.
i have tried installing stock rom from sammobiles but it won't help.i have also installed custom recovery twrp but that also won't help to enter to recovery mode,
i am trapped pls help..
Click to expand...
Click to collapse
hi OP,
did you find any solution to your problem?
Hello all. I'm also pasting this in the T-mobile thread in case it can be of benefit to someone. This is advice to use as a very last resort if you are experiencing the recovery bootloop issue AND you don't have the emmc failure bug. I had the recovery reboot, sudden shutdown with no warning, etc. issue for the past two weeks. I tried everything on Google and Youtube to fix my problem with no success. I flashed multiple stock ROMS and recovery tars (stock and TWRP) via ODIN, but nothing worked. Oddly enough, I never received the emmc error that I have read about. Also, in the few times that my phone booted normally, I even loaded the Wakelock Power Manager app, set it to partial wakelock and my phone STILL continued to bootloop. As a last resort, I bought a new battery, but the reboot problems continued in Android 4.4.4 Kitkat, 6.0 Marshmallow, 7.1 Nougat and 8.1 Oreo ROMS. Well, here is what finally helped me to get my phone back operational. I had a backup ROM from a previous install and a TWRP flashable version of the same ROM on my SD card (in case the phone did not stay on for the full restore). I put the phone into a ziplock bag into a freezer for about 20 min. (thankfully this time TWRP stayed on long enough for me to do the following):
1) copy all the files I wanted to save from internal storage to a computer.
2) performed a full wipe (Dalvic, Cache, System, etc. Like when flashing a ROM, but this time also internal storage. Note: Please do not wipe both internal and SD card, as you may have a difficult time trying to load the ROM file back on the sd card (assuming you don't have a card reader).
3) After wiping, I was able to restore my stock ROM backup (or you can just flash the stock ROM).
I can't be 100% sure, but I think my wiping internal and then flashing the stock ROM finally did the trick. Since this morning, the phone has been pretty much back to as it was before. In either case, I'm sharing this with the hope that it helps someone else.
Sent from my SM-N910T using Tapatalk
chrismcnally123 said:
I just fixed mine with the same issue. I was able to boot into recovery and download mode but mostly download mode without bootloop when I had the usb cable plugged in. I used ADB when I could to boot into download mode, but the buttons worked too. Trying to restart the phone only lopped after the Google screen.
I followed several guides here to flash stock with Odin and wipe cache etc but none solved my boot loop issue. almost gave up but there is a video on You Tube that said the battery warping in the cause of the boot loop. The battery, after/during quick charge, may heat up and change shape causing the issue. Today I installed my new battery purchased on amazon and no more issues.
Now I am on stock and have to find a good rom.
If you do decide to flash back to stock there are a lot of good guides. You may find yourself stuck on the T-mobile screen for 15 minutes when booting for the first time but that is ok. If you still boot loop after installing stock and wiping cache I would try the battery.
Click to expand...
Click to collapse
Thanks sir! I have the same issue! it's working now after replace the battery