[Q] Bootloop + wont boot into CWMOD or Download mode - Galaxy S II Q&A, Help & Troubleshooting

well I tried flashing a new ROM, it was stuck on the boot screen for a good half hour so I decided to restart the phone, it then went into a boot loop.
I used common sense and tried to boot the phone into CWMOD to reflash the stock ROM, or even another ROM, but the phone wont boot into CWMOD, it just goes straight into the boot loop, so i tried booting it into download mode so I could try use Odin, but the phone wont boot into that either.
I'm not sure if its the phone being a retard and not booting into either of those modes, or my phone has been suffering with the home button sometimes, it just refuses to work... but anyways please say you can help me with this and i wont have to fork out a huge some of cash to buy a new one......

psychozombie said:
well I tried flashing a new ROM, it was stuck on the boot screen for a good half hour so I decided to restart the phone, it then went into a boot loop.
I used common sense and tried to boot the phone into CWMOD to reflash the stock ROM, or even another ROM, but the phone wont boot into CWMOD, it just goes straight into the boot loop, so i tried booting it into download mode so I could try use Odin, but the phone wont boot into that either.
I'm not sure if its the phone being a retard and not booting into either of those modes, or my phone has been suffering with the home button sometimes, it just refuses to work... but anyways please say you can help me with this and i wont have to fork out a huge some of cash to buy a new one......
Click to expand...
Click to collapse
Sometimes it helps to take out the battery for 5 mins. Then the 3 key press for download and recovery works again.
Sent from my GT-I9100 using xda premium

If the phone gets as far as a bootloop, it's pretty sure it'll be able to go at least into download mode.
psychozombie said:
my phone has been suffering with the home button sometimes, it just refuses to work... but
Click to expand...
Click to collapse
That might be your problem, the home button is kinda required for recovery or d/l mode.
That's a hardware issue, so you should return it for warranty anyways.
However, till then, try getting a USB Jig, that gets you into d/l-mode w/o needing to press any buttons.

Please use the Q&A Forum for questions Thanks
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Related

[Q] Won't boot past Vibrant screen; recovery works

I recently installed JAC's kernel, and today I was getting force closes on nearly all of my apps. Even market would FC. So I did a nandroid (the nandroid was with the stock kernel), and now the phone won't boot past the Vibrant Samsung screen. Recovery menu works however. I'm guessing the issue is that I shouldn't have flashed a nandroid that was non-JAC kernel.
I have absolutely no idea what to do in this situation. Can anyone help? I really appreciate it, thanks.
UPDATE:
I flashed the Official T-Mo ODIN images, and got the phone working again. I'm not sure if there was some other way without wiping the phone, but this way worked.
I did a nandroid recovery last night of my stock image and it took about 5 minutes to get past the Vibrant Samsung screen, but it ultimately made it past it.
Hm, I must have been not paitient enough. I didn't count but it felt like I waited 4-5 minutes.
I can NOT get past this screen or into download or recovery mode... All I get is a spinning wheel... tried to downgrade from CM7.... I tried everything Ive read to try to get into download mode...any ideas?
l0stcaus3 said:
I can NOT get past this screen or into download or recovery mode... All I get is a spinning wheel... tried to downgrade from CM7.... I tried everything Ive read to try to get into download mode...any ideas?
Click to expand...
Click to collapse
I was finally able to get into download mode..... I spent hours getting my google on reading all the different was to get into download mode...Now my phone would not boot past the "Samsung Vibrant" screen and all the different button combos wouldnt work... Here is what what worked for me..
1 I ungluged the phone from the laptop and removed the battery to make sure the phone was off...
2 I held down BOTH vol+ AND vol-
3 While holding down BOTH vol keys I plugged in the USB and BAMM!!!!!! download mode.....
I hope this helps someone.....
didnt think nandroid backed up the kernel
so doing nandroid to get back to the kernel you were on before wouldnt have done anything

[Q] Help!! cant get to cmw!

So i have been running miui on my sgs2 for the past two weeks, everything works fine. then i boot into recovery to make a backup to try to dualboot. but then it just dosent go into cmw. its just stuck at the samsung warning logo screen...
any help would be awesome!
been stuck for almost ten minutes now... should i use odin to reflash or something? i cant even get to cmw to wipe! somethings screwed up!
What happens if you take the battery out, and try booting like normal? Can you get back to Miui?
Try turning the phone completely off, then going to recovery mode like normal (Vol up + down + power until it gets to the screen)
Also, if you want to get rid of that yellow exclamation icon, you can buy an usb jig or by following Entropy512's work-around method, though I dont think it has anything to do with your problem. Just saying if you wanted to get rid of it.
demon9206 said:
What happens if you take the battery out, and try booting like normal? Can you get back to Miui?
Try turning the phone completely off, then going to recovery mode like normal (Vol up + down + power until it gets to the screen)
Also, if you want to get rid of that yellow exclamation icon, you can buy an usb jig or by following Entropy512's work-around method, though I dont think it has anything to do with your problem. Just saying if you wanted to get rid of it.
Click to expand...
Click to collapse
thats the thing, i cant even get back to miui or cmw by normal boot or the button combo boot. im stuck at this dam screen! i can however go into download mode it seems. thanks for any more help!
so i think i now know that it was because of lolboot and i screwed up

[Q]S3 bootloop, no recovery nor download mode

I'm using v40 of temasek unofficial cm11, Boefflea version 11 kernel.
while I was using my phone, the phone suddenly went into a reboot and started the boot-loop, even when I pull the battery out and put it back in it starts booting immediately and goes into the boot-loop , whenever I try to go into download mode or recovery mode, once or twice I will be able to reach it, but 3 seconds in, it restarts and goes into the boot loop again (I can't choose between restarting or going into download mode)
would a USB jig help me getting into the download mode or will it be 3 seconds in and restarts?
would a service center help me retain my data as I need them?
Thank you.
momentarily I've managed to be able to access download mode and the laptop started making a sound trying to identify the device, too bad the battery fell off (or the phone restarted) lol
anyways I still need help because I couldn't get into any of them
If the phone starts the moment a battery is inserted then usually the power button is stuck -try giving it a wiggle, or get it replaced.
boomboomer said:
If the phone starts the moment a battery is inserted then usually the power button is stuck -try giving it a wiggle, or get it replaced.
Click to expand...
Click to collapse
yeah will do that once this gets fixed lol ..
for some awkward reason, I found out that once I pull out the battery I can use download mode
what should I download?
I tried flashing CWM but I get back to the bootloop ... should I install a newer bootloader?
No, bootloader is irrelevant to firmware. You would be best to flash a full stock rom with odin then factory reset and see if it will boot. I would suspect the power cycling may have caused partition problems if recovery got wiped.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
No, bootloader is irrelevant to firmware. You would be best to flash a full stock rom with odin then factory reset and see if it will boot. I would suspect the power cycling may have caused partition problems if recovery got wiped.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
which would mean I would lose all the data in the previous cm11 right?
I'm trying my best to flash a recovery but I think it got wiped for good.. I'm trying to flash it over and over again .. (I unplug the battery once I'm in download mode to prevent the sudden restart) .. before I flashed the CWM through odin I was able to go into a glimpse of a recovery mode, now I can't seem to see it at all...
is there a way to just copy the data (mostly pictures) through odin or adb with my phone current state?
Google says it might be possible
http://codebin.co.uk/blog/samsung-galaxy-s3-boot-loop-backup-without-root/
boomboomer said:
Google says it might be possible
http://codebin.co.uk/blog/samsung-galaxy-s3-boot-loop-backup-without-root/
Click to expand...
Click to collapse
only through recovery mode or hoping your phone would suddenly connect after many boots lol
I don't think that will be my case .. oh well
as long as I can get my phone working again
going back to stock rom didn't fix the issue. can't access anything yet.
any help?
if anyone is reading this, I've been looking everywhere for a stock rom with pit file, I think that's the problem I'm facing since I have different bootloaders and different modes, somewhere around that I jacked my partitions and I think this would help putting it all back
I've found ones for android 4.1 but nothing of 4.3 .. since I came from 4.3 stock rom and then 4.4 kitkat temasek I think 4.1 won't help me at all
time to go to a service center I guess.
OK this is weird...
after I gave up I put my phone on a recover firmware that for some bizarre reason brought it back to life!!! I just put the phone back and left .. 5 hours later it was on and working.. I was able to access the phone for a brief moment.. but for some reason again I wasn't able to get the touch screen to work... I was able to raise the volume.. restart the phone.. but nothing on touch screen..
then it went back to the dead state...
any ideas?
@boomboomer
Motherboard component or connect lose or failing .
Hello same problema with mY S3 , the power button was damaged. and now I need to enter download mode to flash the firmware.... is there a way to enter download mode on S3 without using power key?
danieldp1990 said:
Hello same problema with mY S3 , the power button was damaged. and now I need to enter download mode to flash the firmware.... is there a way to enter download mode on S3 without using power key?
Click to expand...
Click to collapse
USB JIG

[Q] I-9300 bootloop and no recovery

Hello,
I have a S3 which is stuck in a bootloop at the samsung logo.
when i turn it on it shows the logo for some seconds then the screen goes black and the logo re-appears.
i can not boot into recovery mode, but download mode is working without a problem every time.
i tried flashing stock firmwares with odin and also tried kies emergency firmware recovery. the flashing always went without any problem, but it had effect. whatever i try, i am never able to boot into recovery and still stuck in the bootloop.
in some tries after flashing the screen just shows the samsung logo forever, but after rebooting it once it then is stuck in a bootloop again (shows the logo - screen goes black - shows the logo...)
i also tried flashing TWRP and CWM via odin, but again i can never boot into recovery mode.
what should i try next?
thx alot for any helpful comment
Varjo said:
Hello,
I have a S3 which is stuck in a bootloop at the samsung logo.
when i turn it on it shows the logo for some seconds then the screen goes black and the logo re-appears.
i can not boot into recovery mode, but download mode is working without a problem every time.
i tried flashing stock firmwares with odin and also tried kies emergency firmware recovery. the flashing always went without any problem, but it had effect. whatever i try, i am never able to boot into recovery and still stuck in the bootloop.
in some tries after flashing the screen just shows the samsung logo forever, but after rebooting it once it then is stuck in a bootloop again (shows the logo - screen goes black - shows the logo...)
i also tried flashing TWRP and CWM via odin, but again i can never boot into recovery mode.
what should i try next?
thx alot for any helpful comment
Click to expand...
Click to collapse
You can Try this:
1.) Pull out battery
2.) Put it in again
3.) Press Vol up + home + power
4.) When the Samsung Logo appears let it off
I think you press the Buttons too long.
I had the same problem!
S1ay3r666 said:
I think you press the Buttons too long.
Click to expand...
Click to collapse
i really tried everything, it's not working. btw with i am stuck at the very first image, where it says "samsung Galaxy sII GT-I9300".
i dont think it's just the way i press the buttons because i can reach it on my s1 and s2 without a problem, it's just not working on this device.
could some setting like "nand erase all" in odin help? in other threads there is sometimes mentioned that the internal file system might be screwed up and in those cases a simple odin reflash does not help anymore...
Nand erase will usually hard brick it. Try the rescue firmware from general forum, sticky thread. Follow the guide exactly as it includes a pit file.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
Try the rescue firmware from general forum, sticky thread. Follow the guide exactly as it includes a pit file.
Click to expand...
Click to collapse
thx, but i already did that (multiple times) and flashing via odin always succeeds. then the phone reboots and is stuck at the first samsung galaxy s.. screen. twice i managed somehow to get into recovery (after flashing cwm6) but it then randomly rebooted.
and i dont think that the power button is stuck because when i am in download mode it is perfectly fine it never reboots itself unexpectedly.
Had a similar issue on my tab2 p3100. It all happened when I tried flashing a custom recovery from rom manager.
A bad flash of anything related to recovery or bootloader could be a probable cause.
I remember a knowledge share on one of the threads describing this issue and as mentioned on it all I had to do is this:
1) switch off the device and plug in the charger. This would light up the display showing you the charging status. The status has to show if at least your bootloader part of the phone is fine.
2) plug out the charger and immediately press the three buttons (home + vol up + power) get into recovery mode. This step has to work and help you get to recovery mode.
***Note : the interval within which this step has to be performed is too short since the display would turn off immediately as soon as you plug out the charger. A bit tricky too so you have to be fast. If this misses getting you into recovery, pull out the battery and put it back again. Repeat step1 and 2 again.
3) upon successfully getting into recovery, perform wipe data, cache and select reboot phone from option available on recovery again.
Allow the device to boot. This could take a while since you have performed a data wipe and may prompt for first time set up.
I was able to restore functionality on my tab after these steps and like ppl learn from their mistakes, I then learnt that recoveries and bootloaders are things that needs to be done with a pc only.
Worth a try if you have tried other alternatives and found no go. may help. Who knows..
all the best.
thats also not working. i tried to get into recovery since two days now...
i also tried the steps from this thread: http://forum.xda-developers.com/galaxy-s3/help/solved-pit-bricked-dead-problem-gt-t2535367
but again, after i flash the cf-root (successfully) the phone does neither boot into recovery by itself nor can i do it by hand...
its crazy... in download mode i can see the model number (GT-I9300) and i thought as long as the model number is there and i can enter download mode there should be a way to recover the device.
but i cannot think of anything to try that i have not done yet
If the rescue firmware didn't help then it looks like the emmc chip is damaged.
Sent from my GT-I9300 using Tapatalk
boomboomer said:
If the rescue firmware didn't help then it looks like the emmc chip is damaged.
Click to expand...
Click to collapse
is there a way to make certain of this? how can i tell if it is really a hardware damage and not just a software brick?
i just dont want to let the phone go, it looks still so shiny
is there anything else that could cause the phone not booting into recovery mode after flashing custom recoveries?
Varjo said:
is there a way to make certain of this? how can i tell if it is really a hardware damage and not just a software brick?
i just dont want to let the phone go, it looks still so shiny
is there anything else that could cause the phone not booting into recovery mode after flashing custom recoveries?
Click to expand...
Click to collapse
http://forum.xda-developers.com/gala...-help-t2737707
Same here, still didn't found how to fix it.. I guess our motherboard just died..
Howewer I have a solution that "almost" worked for me.
Get a stock firmware in odin and turn on Nand erase and T-flash
When it's done phone reboots and you'll see just "Downloading..." mode when you turn it on.
Then got to Kies and Select firmware recovery...
Enter s/n and model name and wait for the flash to complete.
With it , I got past boot logo and actually booted into android but the phone crashed because I guess I have a memory issue..
Well , gl. If you don't find anything else helpful , try going with this method..

[Q] S3 bricked? need some help

Yo guys well it eventually had to happen someday. Well i will try to explain what exactly happenend.
I had the Sensation 5 Rom on my device. which means i was on 4.4.2 the CWM recovery is 6.0.4.7
yesterday i decided to flash back to the Revolution HD Rom which is 4.3 if im not mistaken... i didnt change the cwm recovery.
There were no problems while flashing and the Revolution HD Rom was working fine until today when i decided to boot into recovery Mode.
(My hardware PowerButton is defect thats why i took it out of my phone so yeah there is no Power Button on my S3)
Because i cant use the 3 button combo to get into Recovery i used the App quick boot and used the App to boot into Recovery mode.
Now from there on my Problem begins. The Samsung Logo appears then the phone boots into Recovery but only for roughly 1 second.
The only thing i can see is the circle with a hat in the middle (the logo) and the cwm version on the bottom before the phone shuts down and everything starts again...its kind of a bootloop only going into recovery mode for 1 second and then starting a new.
Which mena si CANT use recovery Mode and i ALSO cant get into Download Mode somehow... ive tried holding the Volume down button and Home button and everything but i cant get the phone into download Mode so yeah phone is stuck in that Bootloop which i explained above.
Do u guys think that a Usb Jig from Amazon would actually work getting the Phone into Download Mode? or is it a lost cause and i should start looking for a new phone? ^^
i would appreciate any answers a lot !
No one who can help? :/
sharaku18 said:
Yo guys well it eventually had to happen someday. Well i will try to explain what exactly happenend.
I had the Sensation 5 Rom on my device. which means i was on 4.4.2 the CWM recovery is 6.0.4.7
yesterday i decided to flash back to the Revolution HD Rom which is 4.3 if im not mistaken... i didnt change the cwm recovery.
There were no problems while flashing and the Revolution HD Rom was working fine until today when i decided to boot into recovery Mode.
(My hardware PowerButton is defect thats why i took it out of my phone so yeah there is no Power Button on my S3)
Because i cant use the 3 button combo to get into Recovery i used the App quick boot and used the App to boot into Recovery mode.
Now from there on my Problem begins. The Samsung Logo appears then the phone boots into Recovery but only for roughly 1 second.
The only thing i can see is the circle with a hat in the middle (the logo) and the cwm version on the bottom before the phone shuts down and everything starts again...its kind of a bootloop only going into recovery mode for 1 second and then starting a new.
Which mena si CANT use recovery Mode and i ALSO cant get into Download Mode somehow... ive tried holding the Volume down button and Home button and everything but i cant get the phone into download Mode so yeah phone is stuck in that Bootloop which i explained above.
Do u guys think that a Usb Jig from Amazon would actually work getting the Phone into Download Mode? or is it a lost cause and i should start looking for a new phone? ^^
i would appreciate any answers a lot !
Click to expand...
Click to collapse
Try to use adb to boot to recovery/dowload mode if not use usb jig.
tallman43 said:
Try to use adb to boot to recovery/dowload mode if not use usb jig.
Click to expand...
Click to collapse
well if i try adb the device isnt shown as connected because well the phone restarts every 2-3 seconds.
If there is still any other way wich it could work without a usb jig that would be awesome
ive found a thread over google which said something about sp tools and scatter files....looked like it was possible to change the files of the phone while it was shut down....Does somebody on here know if this is possible?
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