Develop Bugs

T-mobile Samsung Galaxy S2 / CM9 Stuck at boot screen

So this is my first time posting so im a pretty big noob at this, but here it goes. I have a T-mobile Galaxy s2 that i rooted a few months ago. Today CM9 released the stable version, which is what Ive been waiting for so i decided to try it out. (again, Ive never flashed a rom before I only used the stock one) I followed all the steps to do it and now its been at the boot screen for over an hour. The instructions said be patient, but I feel that over an hour is too long. I decided to pull the battery, hoping I could go into recovery mode and do a factory reset. When I try to go into recovery mode it vibrates a couple times but doesn't go into recovery mode. I can't go into download mode either. Does anyone have any idea for what I can do to at least do a factory reset? Thank you in advance for the help.
Edit* After going into recovery, I tried a factory reset but its still trying to boot into CM9. Why is it doing that?

When factory reset it doesn't go back to stock rom .
How are you flashing the rom?
Sent from my SGH-T989 using Tapatalk 2

bmakk2055 said:
When factory reset it doesn't go back to stock rom .
How are you flashing the rom?
Sent from my SGH-T989 using Tapatalk 2
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Actually, for some reason recovery was being really strange. I had to hold down the power and the volume buttons 3 times for it to go to recovery, then I restored an older backup that was on my memory card and it took a while then finally worked
Do you by chance know why it didn't work?

I've been getting this same problem. I can get back to recovery and recover from my backup just fine, but every time I try to get CM9 working, it won't go past the boot screen, even after about an hour of waiting.
I've tried the CM9 hercules stable release off the CyanogenMod website and the CM9 RC2 download through ROM Manager, I've tried installing through ROM Manager and straight from booting into recovery, and I've tried putting the zip on both external and internal storage just in case that might conceivably affect something. I have the same problem every time. I'm using CWM 5.0.2.7 and currently on rooted stock.
Any ideas on how I might get this rom working?

You need Darkside super and cache wipes, which are both available in a sticky with an obvious title in the development section of the forum.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

RTFOP said:
You need Darkside super and cache wipes, which are both available in a sticky with an obvious title in the development section of the forum.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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Cool, thanks. :good:

RTFOP said:
You need Darkside super and cache wipes, which are both available in a sticky with an obvious title in the development section of the forum.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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What he said. Non touch clockwork mod for this phone has a broken cache wipe function. Will cause infinite boot. Flash tdjs cache wipe NOT THE SUPER WIPE. and you should be golden.
Sent from my SGH-T989 using xda premium

[Q] Accidently OTA Updated my Rooted GNex CDMA Now it Just Bootloops

I was running AOKP Jellybean and rebooted my phone which updated the OTA Jellybean update I was unaware of (not like Verizon ever gets things done) and now it bootloops. I can access recovery, ODIN, and have tried my back ups which none of them can load /data, and have tried to simply reflash the rom, which bootloops with the roms boot animation, and have tried wiping data/cache/dalvik/battery stats and nothing worked. Is there anyway to wipe it completely and start from there, or at least get a backup working/computer-saved backup on there? It appears I can't access the phone from my computer because I last used fast charge and now the computer doesn't know it's plugged in. Am I screwed?

try to format system in cwm...and reflash your rom
good luck
Sent from my Galaxy Nexus using xda app-developers app

kizakiyuria said:
try to format system in cwm...and reflash your rom
good luck
Sent from my Galaxy Nexus using xda app-developers app
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No luck, it still bootloops

Go back to ics....then factory reset and then reinstall jb
If i helped you in any way then do click thanks
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coolprateek.kumar said:
Go back to ics....then factory reset and then reinstall jb
If i helped you in any way then do click thanks
Sent by XDA Premium
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I second the factory reset.
Do you have access to Fastboot? If so, why not push commands to the phone and factory reset it and start fresh?

Sorry for the late reply, it still was bootlooping after a factory reset, I just got a replacement GNex. Thanks to those who replied though.

Phone Dead, Bad Night, Help Wanted

I flashed TWRP 2.5 and then flashed Task's AOKP 4/9 ROM and everything went down hill from there. The phone kept rebooting after a minute or so, so I did a factory reset and reflashed the ROM. That didn't help, it actually made it worse in that it would not get past the kernel splash screen. So I did another wipe and the same thing. I wiped again and flashed an older version of AOKP 4/5 and again would only get to the kernel splash. After another hour or so I decided I'll just go back to rooted stock, so using Odin 3 3.07 I flashed my trusted root69.stock_ATT_I747UCALG1 image and now it just stays on the Samsung screen.
I've run out of thoughts on what the hell is the problem and thought I'd ask.
Anyone have any suggestions on what I can do to get this paper weight working again?

dhostetter said:
I flashed TWRP 2.5 and then flashed Task's AOKP 4/9 ROM and everything went down hill from there. The phone kept rebooting after a minute or so, so I did a factory reset and reflashed the ROM. That didn't help, it actually made it worse in that it would not get past the kernel splash screen. So I did another wipe and the same thing. I wiped again and flashed an older version of AOKP 4/5 and again would only get to the kernel splash. After another hour or so I decided I'll just go back to rooted stock, so using Odin 3 3.07 I flashed my trusted root69.stock_ATT_I747UCALG1 image and now it just stays on the Samsung screen.
I've run out of thoughts on what the hell is the problem and thought I'd ask.
Anyone have any suggestions on what I can do to get this paper weight working again?
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Not sure about the problem with aokp. But your bootloop just pull the battery, reinstall battery, go into stock recovery, factory reset and voilà
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

KorGuy123 said:
Not sure about the problem with aokp. But your bootloop just pull the battery, reinstall battery, go into stock recovery, factory reset and voilà
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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This will do it. Flashing back to 4.0.4 will bootlopp until you factory reset in stock recovery
Sent from my SAMSUNG-SGH-I747 using xda premium

Same thing happened to me. Boot loop with 4/9 AOKP task so I Odin to the same file as you but that ran just fine. I would try to Odin again.
Oh and after stock with root I flashed 4/9 and all was good. By chance did you have custom boot animation?
Sent from my SGH-I747 using xda premium

drock212 said:
Same thing happened to me. Boot loop with 4/9 AOKP task so I Odin to the same file as you but that ran just fine. I would try to Odin again.
Oh and after stock with root I flashed 4/9 and all was good. By chance did you have custom boot animation?
Sent from my SGH-I747 using xda premium
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Yes I had a custom boot image.
Getting ready to factory reset and reboot. Hope all goes well.....

dhostetter said:
Yes I had a custom boot image.
Getting ready to factory reset and reboot. Hope all goes well.....
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I think it's the custom boot causing this issue. Anyway good luck. I know my heart skipped a beat when my phone would boot loop while to get into recovery. Once I Odined back to stock with root first/only thing I downloaded was goomanager and installed TWRP then flashed 4/9.
Sent from my SGH-I747 using xda premium

drock212 said:
I think it's the custom boot causing this issue. Anyway good luck. I know my heart skipped a beat when my phone would boot loop while to get into recovery. Once I Odined back to stock with root first/only thing I downloaded was goomanager and installed TWRP then flashed 4/9.
Sent from my SGH-I747 using xda premium
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I'm back up and running again. A little embarrassed I forgot the factory reset last night.
Thanks for the reminder!

AOKP is a great ROM.
When flashing ROMs always follow these steps and you will be fine.
1- nandroid backup
2- format system
3- wipe cache
4- wipe Dalvik
5- factory reset.
Most suggest doing each 3 times.
6- install ROM and reboot
7- flash gapps
Let sit for 10 minutes.
Follow those instructions and everything will be fine.
Sent from my SGH-I747M

[Q] Phone boot loops couple hours after rom install

I have a galaxy s3 t999 rooted with team win recovery v2.6.0.0
No matter what rom i use, wether it be debloated stock or custom rom, after a couple hours my phone goes into a boot loop and the only thing that brings it back is a restore to when i rooted and installed the recovery.
Baseband- t999UVDMD5
Ive tried
universeS4 v3
Stockoroma
z999 UVDMD5 (Modified) Stock TouchWiz
[STOCK] T999UVDMD5 | 4.1.2 | Deodexed
all of them after 2-3 hours bootloop.
Can anyone help me with this? ive looked everywhere to see if anyone is having the same issue as me but no luck....

Have you factory reset after flashing and tried letting it run clean without installing any apps?
If all else fails, Odin flash back to stock and try again. Odin flash the root66 firmware to have the phone rooted.
Sent from my SGH-T999L using XDA Premium 4 mobile app

DocHoliday77 said:
Have you factory reset after flashing and tried letting it run clean without installing any apps?
If all else fails, Odin flash back to stock and try again. Odin flash the root66 firmware to have the phone rooted.
Sent from my SGH-T999L using XDA Premium 4 mobile app
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I factory reset before i flash. Am i suppose to factory reset after flash as well? sorry if thats a noob question. ive been flashin roms for a few years now and never had this problem.

If you're going to factory reset, I generally suggest doing so after the flash. Its not unheard of for someone to factory reset, then reboot normally, then go and flash the rom. By rebooting they rebuild the data which was wiped to begin with. Then when they flash the rom wonder why it won't boot till factory resetting again.
If you don't reboot, it shouldn't really matter if you do so before or after flashing.
I also usually do so before, but suggest the other way for that reason.
Sent from my SGH-T999L using XDA Premium 4 mobile app

DocHoliday77 said:
If you're going to factory reset, I generally suggest doing so after the flash. Its not unheard of for someone to factory reset, then reboot normally, then go and flash the rom. By rebooting they rebuild the data which was wiped to begin with. Then when they flash the rom wonder why it won't boot till factory resetting again.
If you don't reboot, it shouldn't really matter if you do so before or after flashing.
I also usually do so before, but suggest the other way for that reason.
Sent from my SGH-T999L using XDA Premium 4 mobile app
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I figured as much. I just reflashed the firmware only, factory reset, wiped cache and del, flashed universeS4, factory reset again, let phone boot fully, restarted phone and am gonna see where the phones at in the am when i wake up. If it still does it ill return to stock/odin with root66 and see if that will fix. if not im stuck on stock which sucks.
if anyone else has any suggestions let me know.
Thanks doc

UPDATE*
so i flashed back to stock with odin. then flashed root66. wiped cache and del, factory reset, wiped cache and del again, flashed universeS4 factory reset.
Its been 7 hours so far and no bootloop. Putting my simcard in it now and hoping for the best. Thank you again.

Cool man! :fingers-crossed:
Sent from my SGH-T999L using XDA Premium 4 mobile app

DocHoliday77 said:
Cool man! :fingers-crossed:
Sent from my SGH-T999L using XDA Premium 4 mobile app
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*2nd UPDATE*
Wake up this morning to the phone boot looping. This sucks. Does anyone have any idea what i can do to fix this?

Noooooooooo!!!!!
That definitely sucks man. My best advice is to odin flash official stock firmware (root66 ok) and try the same thing. If it continues then I would check if its still under warranty as its probably hardware related. Aside from that I'm not really sure what else to suggest...
Sent from my SGH-T999L using XDA Premium 4 mobile app

[Q] My S3 is stuck on the logo after using CWM. Odin not working please help

Alright, im not completely new to rooting but I have encountered a new problem.
I rooted my phone through odin (galaxy s3 T999), had some hiccups with that so I ended up downloading the stock rom tar and reflashed using that, problem solved good to go still rooted. awesome.
So, I attempted to flash the cyanogen rom using clockwork mod. it wouldn't come past the load screen, went into clockwork mod to recover my backup but for some reason it wouldn't let me access the SD card to get it. next thought was to go back to odin and flash the same file I used previously to get back to where I was, for some reason this is not working, I can get to download, use odin to flash it, says success and all that, then upoon rebooting it stays at the Samsung loading screen.
So from there I went and downloaded the GS3 toolkit and tried all of their recovery files, all having the same issue. about 18 flashes later I tried reformatting from the phone itself, same issue with the samsung logo being stuck. And now, I am currently baffled, anyone wanna help me out? I have a feeling it has something to do with the .pit option on odin, but I am not that advanced and its just a hunch. so...thanks in advance guys!
So I understand not to touch pit, roger, reading other posts makes that clear, but still cant find a fix, the top right of my download says
ODIN MODE
Product Name SGH-T999
Custom Binary yes: 19 counts
Current Binary Samsung Offical
System Status Custom
Qualcomm secureboot Enable

Okay, what is the current state of the device?
Whst do you see when you boot into recovery ( take battery out of phone the put it back in and do the following: hold volume up, home button and power button, let go of all buttons when you feel the phone vibrate and blue text flashes in the upper left corner of the screen)?
Sent from my SGH-T999 using XDA Premium 4 mobile app

I just tried to send a rom over that had CWM 6.0.2.3 and it installed that, but still stuck on logo. going into recovery I am in CWM 6.0.2.3
have the standard options wipe/factory, install from zip etc.

You flashed a rom that had cwm 6.0.2.3 or did you flash a rom while on 6.0.2.3?
Sent from my SGH-T999 using XDA Premium 4 mobile app

I'd say about 98% of the time, when it hangs like that you just need to factory reset.
Sent from my SGH-T999L using XDA Premium 4 mobile app

Flashed a rom that had 6.0.2.3. I do not have any roms on my ZIP, been doing everything through ODIN. Very confused as to why it suddenly stopped working.

DocHoliday77 said:
I'd say about 98% of the time, when it hangs like that you just need to factory reset.
Sent from my SGH-T999L using XDA Premium 4 mobile app
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tried to factory reset and it does the same logo stuck business. That was the last thing i tried after attempting to back up and reflash numerous times. tried flashing again recently, it will install CWM if it is attached to the rom but still gets stuck on the logo. tried re installing odin as well, it is working as usual, starts, restarts the phone, sits awhile, success. then i restart the phone and never get past logo.

I would do what Doc said.
If it still doesnt work, download a rom of your choice (in the t-999 section) and do a full wipe before flashing the rom you picked.
Sent from my SGH-T999 using XDA Premium 4 mobile app

Da Kine said:
I would do what Doc said.
If it still doesnt work, download a rom of your choice (in the t-999 section) and do a full wipe before flashing the rom you picked.
Sent from my SGH-T999 using XDA Premium 4 mobile app
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what do you mean by full wipe, factory reset? or something else?

connorjiy said:
what do you mean by full wipe, factory reset? or something else?
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When flashing a new rom, you have to do a full wipe or youll run into problems like you are currently having.
If you dont know what a full wipe is, then stop what you are doing and put your phone down. Just about every rom thread here on xda explains what a full wipe is, it will be in the first post of the thread.
Like I said, find a rom you like in the t-999 section and flash it after doing a full wipe.
Sent from my SGH-T999 using XDA Premium 4 mobile app

Da Kine said:
When flashing a new rom, you have to do a full wipe or youll run into problems like you are currently having.
If you dont know what a full wipe is, then stop what you are doing and put your phone down. Just about every rom thread here on xda explains what a full wipe is, it will be in the first post of the thread.
Like I said, find a rom you like in the t-999 section and flash it after doing a full wipe.
Sent from my SGH-T999 using XDA Premium 4 mobile app
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Looked it up, that is what I do by default, didn't know thats what was considered a full wipe, just tried it with similar results, didn't know about the dalvik cache though. im on a work computer so I cannot currently DL a new rom from the site, I hope thats what the issue is, but I still cannot see why my other ones would suddenly not work.

connorjiy said:
tried to factory reset and it does the same logo stuck business. That was the last thing i tried after attempting to back up and reflash numerous times. tried flashing again recently, it will install CWM if it is attached to the rom but still gets stuck on the logo. tried re installing odin as well, it is working as usual, starts, restarts the phone, sits awhile, success. then i restart the phone and never get past logo.
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I'm just not sure what you mean by it installing CWM attached to a Rom? Recoveries shouldn't be included with a Rom.
Odin flash the root66 firmware, then reboot to STOCK recovery and factory reset. This will wipe all user data, including your internal sd card. Then try rebooting again.
Sent from my SGH-T999L using XDA Premium 4 mobile app