[Q] Phone will not reboot. - Galaxy S II Q&A, Help & Troubleshooting

Hi, hoping you guys can help me out....
I have just picked up a s2 on 3 network. It is running Gingerbread. I checked for any updates but it says it's up to date...
So I thought I'd root it and install custom rom.
I followed this guide to root it: http://www.youtube.com/watch?v=ibj_DWt1Yeo
All seemed to go fine, phone started to reboot and I got the screen with the yellow triangle like it showed in his video but then it just stays at a black screen.
I can go into download mode and into ClockworkMod mode.
Any ideas why it's not rebooting properly??
I was just going to try and install a custom rom through CWM but thought I'd better ask before I try in case I brick it completely!.
I have been onto samobile to see if I can download the stick firmware that was on it but nothing is showing up for 3 network...
I have rooted and changed the rom on my Galaxy Tab 8.9 hundreds of times, and have rooted my Note 10.1 without any trouble. But think I must be doing something wrong......

Nothing wrong in what you've done here as far as i know.. Maybe try pulling the battery out and see..
And yes u can install a custom rom.. But u need to be sure that emmc brick bug is not there..
https://play.google.com/store/apps/details?id=net.vinagre.android.emmc_check&hl=en
Use this app to find out..

and why not try a genreic JB since you are on GB rather than custom roms?

Related

[Q] SGS2 Won't boot properly - not a boot loop [problem solved]

Ok, here's the deal:
Rooted the device, everything was a-ok.
Installed Clockwork, everything still a-ok.
Tried using mod manager to install Cyanogen nightly 9, phone rebooted and the progress bar for the mod install wouldn't move. I waited for a while and eventually manually turned the device off as it wasn't making any progress.
Ever since, it won't go past the screen you get at the beginning (w/ the yellow sign indicating an unsecured rom). It just stays there forever.
What I have to work with:
- Clockwork Recovery is available.
- The device is recognized by Odin when in download mode.
- The device is not recognized by the computer/Kies.
What I've tried:
- Followed the instruction for boot loop w/ both stock rom and Villain (no dice).
I'm sorta freaking out now. I have yet to see anyone having the same problem online and I really hope it's not bricked - a 600$ paperweight...
Is there something else I can try? Is it possible to flash stock PIT/Bootloader/PDA/everything else? If it is, would it fix the problem?
Please just point me in the right direction.
Thank You,
Edit: In recovery mode, the following error appears:
- Can't access to "/system/csc/VMC/system/"
Edit: In download mode, the current binary is set to "Samsung Official". Therefore I think this isn't the problem.
Edit: OMG OMG holy crap. Problem has been solved. Got a friend who had the same phone from the same provider to tell me what the firmware for the phone was. Downloaded it. Installed it w/ Odin. I almost turned religious when it booted a bit slower than what I remembered. It works well enough now, although I will probably go exchange it for a new one ASAP, before my warranty expires.
If anyone has similar problems. Don't panic and re-install stock firmware.
Cheers Folks!
Rovah said:
Ok, here's the deal:
Rooted the device, everything was a-ok.
Installed Clockwork, everything still a-ok.
Tried using mod manager to install Cyanogen nightly 9, phone rebooted and the progress bar for the mod install wouldn't move. I waited for a while and eventually manually turned the device off as it wasn't making any progress.
Ever since, it won't go past the screen you get at the beginning (w/ the yellow sign indicating an unsecured rom). It just stays there forever.
What I have to work with:
- Clockwork Recovery is available.
- The device is recognized by Odin when in download mode.
- The device is not recognized by the computer/Kies.
What I've tried:
- Followed the instruction for boot loop w/ both stock rom and Villain (no dice).
I'm sorta freaking out now. I have yet to see anyone having the same problem online and I really hope it's not bricked - a 600$ paperweight...
Is there something else I can try? Is it possible to flash stock PIT/Bootloader/PDA/everything else? If it is, would it fix the problem?
Please just point me in the right direction.
Thank You,
Edit: In recovery mode, the following error appears:
- Can't access to "/system/csc/VMC/system/"
Edit: In download mode, the current binary is set to "Samsung Official". Therefore I think this isn't the problem.
Edit: OMG OMG holy crap. Problem has been solved. Got a friend who had the same phone from the same provider to tell me what the firmware for the phone was. Downloaded it. Installed it w/ Odin. I almost turned religious when it booted a bit slower than what I remembered. It works well enough now, although I will probably go exchange it for a new one ASAP, before my warranty expires.
If anyone has similar problems. Don't panic and re-install stock firmware.
Cheers Folks!
Click to expand...
Click to collapse
Same problem. anyone?
Vincho said:
Same problem. anyone?
Click to expand...
Click to collapse
Did you read the answer ???
jje
Look online (samfirmware), ask friends or on forums for anyone who has the SGS2 w/ the same carrier in the same country and try to find the firmware version (I9100***** - the stars are letter codes). Then just download that firmware and use Odin to install it.
If you can't find it,you presumably could just flash any stock firmware and it might work (or it might make things worse, try at your own risk)
Rovah said:
Tried using mod manager to install Cyanogen nightly 9, phone rebooted and the progress bar for the mod install wouldn't move. I waited for a while and eventually manually turned the device off as it wasn't making any progress.
Click to expand...
Click to collapse
The progress bar not moving is a known issue with the CM7 Recovery. All you need to do is wait for it to say that it's finished. There is nothing wrong with your phone and no need to return it. You just cancelled the CM7 install part way through which meant not all required files were installed on the phone, causing it to not boot.
As for it taking longer to boot into android after the odin reflash. That's because it has to build up it's dalvik-cache again. This is completely normal any time you install a new rom. It only happens on first boot of a rom.
So again, no need to return your device and feel free to try CM7 again. Just remember to let it finish even if the progress bar isn't moving.
Ahh. Ok that makes sense. This ought to teach me to read before screwing around w/ my phone.
I wanted to exchange it because I wasnt sure i'd still be able to install official Samsung firmware updates through Kies.
Suppose an official 2.3.4 firmware comes out, would i be able to install it through Kies?
Sent from my GT-I9100 using XDA App
Rovah said:
Ahh. Ok that makes sense. This ought to teach me to read before screwing around w/ my phone.
I wanted to exchange it because I wasnt sure i'd still be able to install official Samsung firmware updates through Kies.
Suppose an official 2.3.4 firmware comes out, would i be able to install it through Kies?
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Yes, as long as the firmware you're flashing is the same as the stock version that came on the phone. And even if not, you'll get the kies updates for whatever region firmware you did flash onto the phone.
I see. Thanks a lot!
Is there any danger to flashing firmware from a different region than the one youre from?
Sent from my GT-I9100 using XDA App

[Q] Galaxy s2 stuck in boot mode

Hey all, so I have a galaxy s2 (as you may have guessed) and had a friend root it for me a while back with lightning rom ... Not sure if anyone can help me here ...
I am giving the phone to mum, so went and did a factory reset on it, and it apparently ate the OS because it is now just stuck rebooting itself, it wont actually load into the OS at all.
I've gotten it into recovery mode, but nothing i do seems to work, it just says it can't find files, or sits on a screen with a pretty little icon.
Is there any way I can download the OS again, or somehow get it back onto the phone?
Cheers for your help in advance!
- Rhiana
Find a rom that is installed through odin, either a stock ki8 rom or a modded one, there's plenty in the dev sections.
do you have CWM installed if it is then mount usb storage from CWM menu push the ROM in your mobile from your PC. I would recommend this ROM
http://forum.xda-developers.com/showthread.php?t=1290468
then install as the instructions given on the first page
P.S odin works good too, your choice
There is a sticky just at the start page called bootloop. Take advantage of that.
Sent from my GT-I9100 using XDA App

[Q] Problem installing Darkys rom

Hello,
I have tried installing cyanogenmod. This worked, but I wasn't happy with it and tried to go back to darky's rom, by wiping to factory defaults, then wiping all data; and afterwards update to darky's rom.
But somehow, my phone isn't starting anymore. I also cannot go into Recovery mode. The only thing that is starting is Downloading mode. How can I get a decent rom installed again? :S
Pls help! I don't know what to do anymore
Can anyone help me out here?
Flash a stock rom and start from scratch
Hey, I never got it to work with cyanogenmod on my galaxy s, but since you dont tell which phone u are using its a little difficult. Take a look here, there should be a guide.
http://forum.xda-developers.com/showthread.php?t=814091
Ah, I have a Samsung Galaxy S I9100
Then the nice people from the appropriate device specific subforum should be able to help you: http://forum.xda-developers.com/forumdisplay.php?f=1055

Very Upset

1st want to appologize for being a complete noob! I have rooted my Galaxy SII, flashed Hydra rom to it. It wouldnt operate correctly, sooooo! Ive tryed for the last 8hrs to remove it. So finally this AM I thought I found a solution to unroot my phone & go back to stock FF18. No my phone doesnt work & just sits here in a boot loop. It wont let me do anything. I try too do a wipe, & it wont let me....! Please help.:crying:
Pl8Gu3 said:
1st want to appologize for being a complete noob! I have rooted my Galaxy SII, flashed Hydra rom to it. It wouldnt operate correctly, sooooo! Ive tryed for the last 8hrs to remove it. So finally this AM I thought I found a solution to unroot my phone & go back to stock FF18. No my phone doesnt work & just sits here in a boot loop. It wont let me do anything. I try too do a wipe, & it wont let me....! Please help.:crying:
Click to expand...
Click to collapse
Stock FF18? There is no such thing for the I9100. A quick Google of FF18 and Galaxy S2 leads me to many pages regarding the Epic 4G Touch.
Are you a Sprint customer? If yes, then you have an Epic 4G Touch, and are in the wrong forum for your device.
Here is a link to the Epic 4G Touch forum.
Shouldn't be much of a problem doesn't sound bricked or anything just set it to download mode by booting it with holding volume down+home key+power and then flash a rom using Odin, if you don't know how to use Odin there are guides you can find around the forums.
Also you can try pulling the battery for 1 minute then trying to boot into recovery often after a boot loop it won't want to go into recovery without pulling the battery.
I suggest you flash a rom like CM9 first if you where coming from a gingerbread rom as it's sure to work and will update the boot loader to ICS some custom rom's dont do that and require a base like CM9 to be flashed first.
Edit - Yes just read the reply on the FF18 rom no such thing for the Galaxy S2 so if you flashed that onto the S2 you would surely have problems.
If u are in the uk download the latest samsung official 4.0.4 from the galaxy s2 Original rom development section . Useing Odin flash that back by putting it in download mode Vol down power and back button .Odin is included with the download , U will need the usb cable to connect to ur pc. Select PDA in Odin
Mark

[Q] Help request, S2 stuck on boot logo

Hello all,
I have tried many things before asking for help, but nothing worked so far.
Here is the story:
I was on ICS 4.0.4, with default ROM coming from carrier.
I wanted to install CM9.1,
spent countless hours doing all backup and reading tutorial.
Tried finally yesterday and it was stuck doing "wiping data". Left it for 20min+ and nothing.
After restarting it, it is now stuck on the boot logo.
I couldn't enter anymore CWM or stock recovery (up+home+power), but could enter Download mode.
So I tried a couple of things I have read on the forum, like installing Siyah-s2-v5.0.1.tar through Odin 3.04 but I still cannot enter recovery mode.
I've read (too late) about the mmc brick bug (couldn't find anyone speaking about it in any tutorial until I reached this point... nothing on CM wiki or in other tuto... classic!).
I hope I'm not in this case though as I can still go to DL mode, and the phones having the brick bug are completely dead (blank screen or no DL mode), as per http://forum.xda-developers.com/showthread.php?t=1756242
I managed to finally get CWM working only by using GT-I9100_ICS_ClockworkMod-Recovery_5.5.0.4.tar from Odin, then tried to install CM9.1 from SD card but after reboot it is stuck on the blue cyanogenmod animation boot screen and nothing happens.
Tried also to restore from CWM my nandroid backup, but during the restore it seems to hang then restart by itself, and then I'm back to Galaxy S boot logo (the animated one with the big S).
And after this I have lost again access to recovery mode.
I can't go back to stock and I can't install CM... I was not expecting such issues, it all seemed pretty basic on paper.
I'm really stressed and don't know what to do
Flash a stock rom in Odin (download mode), re-root your phone/flash a kernel with CWM, restore your backup ?
Hi,
thanks for answering,
I have tried to locate such a rom, but I'm not sure which one... is there a specific one to try ? could you point me to it please ?
so far I have tried I9100XXLPQ_I9100OXALPQ_I9100XXLPQ_HOME.tar.md5
but no luck
you also say "re-root", at the time I used this method:
[GUIDE] ROOT/UNROOT Stock ICS Firmware without flashing unsecure kernel - xda-developers
http://forum.xda-developers.com/showthread.php?t=1501719
Do I need root to install Siyah kernel from Odin ?
I'm trying one from sammobile... let's hope :/
The bad thing is I had no Yellow triangle at the beginning since I'm stuck in this boot loop or no boot to be precise.
Now that I have tried different things to fix it, it is still not working and I have my flash counter = 10.
I cannot even go back to the shop, is there a way to reset it knowing I cannot even reach the OS, I have only DL mode or CWM...
Use a stock rom for your region/carrier (or any stock rom from any region really), it doesn't really matter as I presume you'll be restoring a backup and/or going back to a custom rom anyway won't you ?
Samfirmware & AndroidFirmwares.net have lots of stock roms.
No, you don't need root to flash an Odin version of Siyah. So yes, you can flash that after you've got stock up & running to root your phone rather than re-rooting your phone by flashing a CFRoot kernel or using another root method. Just make sure the version of Siyah you're going to flash matches up with the stock rom you've got on (I.E if you flash a GB stock rom use GB Siyah, ICS stock = use ICS Siyah, etc, etc).
thank you again, I'm downloading the rom from sammobile matching my carrier,
Would you be so kind to send me a PM with your skype username or anything to "chat" with you ? I'm really worried and I spent all night already trying to fix it with no progress at all
Don't worry about the flash counter. That's the least of your problems while your phone is borked Worry about it when it's fixed. There's nothing you can do about the triangle while your phone is cactus.
When you've got it up & running again, use Triangle Away.
But first things first.
---------- Post added at 04:02 AM ---------- Previous post was at 03:59 AM ----------
You're welcome.
Um, no. Absolutely not. Nothing personal, but if I did that for every person who's asked me for 'hands on' help since I've been here, I'd have spent my time doing nothing else. I don't do 'personal' with people from XDA (which is why I have PM's blocked except for mods).
Besides, you're going to learn much more fixing this yourself. I've given you a stack of information thus far, ball is in your court. Every answer to every question you could possibly ask is on this site. It just sometimes takes a bit of work/reading on your part to find it.
megosu said:
thank you again, I'm downloading the rom from sammobile matching my carrier,
Would you be so kind to send me a PM with your skype username or anything to "chat" with you ? I'm really worried and I spent all night already trying to fix it with no progress at all
Click to expand...
Click to collapse
ok I understand.. it is just I have literally spent more than 8 hours on it and had not make any progress at all (even worse I cannot return it to the shop because of the yellow triangle).
I appreciate your help, it gives me a bit of hope but I'm in a very bad situation and I feel I have read and do so much already with no success at all.
I will try your option of restoring the one from Sammobile, I have tried other before without any luck, maybe this one will do... (5min left to DL it).
thanks again for your support
I know where you're coming from. The first flash I tried when I got my phone in 2011 borked because I was careless, and it took me a bit over a day to get the right info/files/etc to get it fixed. I know it's frustrating/tiring/annoying & you're wondering at the start whether you can even fix it. But as long as you've got download mode 99 times out of 100 you can save it.
And as I said, it's good experience; once you've fixed it, you'll be able to handle anything that comes up in future
Let us know how you go. I'm going to bed shortly, but I'm sure someone else will step up & help if you have any further problems.
You're welcome Happy to point you in the right direction.
I have flashed the rom, the exact same one as I had before everything happened...
if it helps, I flashed it from Odin 3.04 as PDA.
I9100BVLPH_I9100TMULPH_I9100BVLPE_HOME.tar.md5
I'm now back to the Samsung GALAXY S2 GT-I9100 logo and nothing happens.
I cannot use recovery mode,
I can use DL mode (it shows 11 counts and current binary as Samsung official.)
update:
I left the phone on the first logo for about 5min and it moved to the next Samsung Galaxy S2 logo, with the big animated S.
I'm waiting but nothing else is happening.
I'm still desperate to fix it.
One thing which can be relevant, whenever I try to wipe or format /data from CWM, my phone is restarting after a few minutes or is saying it cannot be done.
I can format /cache and /system.
Could it be the root cause ? Any way of fixing it ?
Thank you
update: I cannot mount /data from CWM, it says Error mounting /data!
is it the brick bug ? :|
Easy now....your device is still good.
Those animations should take like 1-2 mins when you flash a rom.
Now, you are completly sure that you are actually flashing the right ROM for your device model?
If so, just keep flashing stock roms until you're up and running again, so you can start from scrap.
I tried, the issue is as soon as I flash a stock rom (through Odin), then I can't get into stock recovery mode anymore, I have to flash GT-I9100_ICS_ClockworkMod-Recovery_5.5.0.4.tar to get back the recovery mode.
I tried to flash several times, I think it is down to the fact I cannot mount or format /data.
Which is why I'm wondering if it is the famous brick bug.
My device is GT-I9100 and I took the stock rom from sammobile:
I9100BVLPH_I9100TMULPH_I9100BVLPE_HOME.tar.md5 which is ICS 4.0.4 (that I had before trying to move to CM9.1 and having all this mess in my hands.)
flash this:
http://www.sammobile.com/2012/11/15/i9100xxlsj-%E2%80%93-galaxy-s-ii-android-4-1-2-jelly-bean-test-firmware/.
you are on siyah kernel right?
what you wanna do know is to get to whatever rom your flashing, forget about cmw for now.
this also might help:
http://forum.xda-developers.com/showthread.php?t=1457458
So it is not lost yet ? Not the brick bug ?
just to be sure:
you want me to install through Odin: Siyah-s2-v5.0.1-CWM.zip
then going back to DL mode
I flash through Odin: I9100XXLSJ_I9100OXXLS1_OXX.zip (coming from your link).
anything I'm missing (even if it seems obvious, please let me know as I'm maybe missing something important)
?
I still cannot do Factory reset... is it a problem ?
I dunno what kernel you are using, If stock 4.0.4 kernel you should flash siyah first (safe kernel, no brick bug), and then countinue flashing the ROM. Check out the brick bug thread in general SII forum for directions if you want.
BTW, Odin recognizes your phone right? Check it out, you'll get a huge long breath.
BTW 2: you don't have any kies applications running in your pc.....am I right? if so, CLOSE THEM ALL!
I did had stock 4.0.4 kernel when I first tried to follow CM9.1 wiki, and I did a factory reset through CWM... which is why I think I might have bricked it...
I have checked the brick bug thread (too late it seems...) but so far I can't be sure if I'm in this case or not as they say they can't even reach DL mode, and I can.
Odin recognizes my phone, yes, but anything I flash is stuck on the animated logo.
I do not have Kies installed, just installed the drivers.

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