I've been trying, without an ounce of luck, to flash a custom rom. I'd love to update to Kitkat, and I'm currently running a rooted stock ICS. Almost every ROM that I've looked into says to flash with CWM, but I can't seem to find a version that will properly flash onto my phone. Am I doing something wrong here?
In the process of flashing the stock JB for Virgin Mobile. Hopefully once that's complete, I'll be able to get the next step going.
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Hey guys ... I had a new GS3 from Samsung, so it had 4.3. I flashed a 4.1 stock ROM via Odin, but now when I turn on the phone, I get constant messages about various android processes failing and needing to be stopped. I have since tried another stock ROM and the same thing is happening. Does anyone have any idea what I should do? Maybe flash the latest stock ROM to go back to 4.3? I was trying to revert so I could root and flash a custom ROM but I can't do anything on this right now. I can get back into Download mode though. Please explain things as best as possible as, as you can tell, I clearly don't understand this.
I managed to use the root toolkit to install TWRP, but no custom roms I flash get past the boot screen. So I can get into TWRP and I can get into download mode. I have Odin and I'm not sure where to go from here.
I rooted my phone then used CWM RomManager to make a backup image of the rooted stock rom. Then put KitKat on the phone. Since then I have restored the Rooted stock Rom. Now every time the phone boots I get the Upgrading Android message and the phone is kind of buggy. I am having trouble finding instructions anywhere on how to get it back to complete stock. If someone could point me in the right direction I would appreciate it.
Thanks
What stock AT&T rom were you running when you created the backup?
Oh I guess I should have mentioned that huh.. it was 4.3
Have you tried flashing the 4.3 update.zip file you can find in the developers forum here: http://forum.xda-developers.com/showthread.php?t=2387423.
I feel like you ought to be able to copy the 4.3 zip file to your SD Card and flash via recovery and it should work, although I haven't tried it so I can't be sure.
I have a quick question. I am on a stock rooted 4.1.1 att sgs3. I was curious if i flashed this rom/kernal,[ROM/KERNEL][4.4.2] Quantum 3.54 & QuantumKernel 3/7, would i be able to go back to my stock rooted rom if I wanted to? Thanks in advance.
Looks like you are trying to flash a custom ROM. Don't know much about these particular ROMs you mentioned but you need to your research thoroughly on custom ROMs before flashing. You may know most Custom ROMs don't come with their own bootloaders but still have to rely on a manufacturer's bootloader to run. You should, therefore, avoid any ROM that may update your bootloader because this is the only way that you would not be able to return to your previous stock version. If the ROM simply updates the system without mucking with your bootloader, there is no reason why you may not be able to return to stock.
I had an AT&T SG3 on stock 4.1.1 and I was able to flash KitKat (4.4) based CM11 and return to stock 4.1.1 without any hitches. Finally, whilst you are still on stock 4.1.1 I would suggest you take advantage of all the flexibilities offered by this Android version especially free unlocking before you begin tinkering with firmware.
So as long as I dont update my bootloader, I should be fine on going back to stock rooted 4.1.1? Thanks for the info!!
So how do i know what roms dont mess with the bootloader?
Most ROMS do not include an aboot file. I have flashed CM11, Validus, Slim, and Cyanfox and none of these altered the bootloader.
I suggest that you find a ROM you like, unzip the file, and look at the updater script to determine which bootloaders are required to install the ROM on your phone.
Ok guys, thanks for the tips. I just didn't want to get stuck on a firmware where i could not have root anymore or go back to a stock rooted rom.
I have been reading through many threads last night and today trying to figure out the best way to get rooted stock back on my AT&T S3 i747. I had hoped to figure it out myself, but have come to the realization that I need a little guidance.
In light of that, I'll try to give concise information. First of all, I am simply looking to end up with stock.
Series of events:
*Have had stock since given this phone in August; it was kept up to date with OTA and it was current (4.4.2) as of yesterday morning when att pushed the newest update to the phone.
*I rooted the phone in September using CF root and Supersu to both root and block Knox and it had been working very well until the attempted update yesterday.
*I no longer have a custom recovery backup
*yesterday my phone went through the update (download and install), but when it rebooted, it only made it through the Samsung splash screen and then went black.
*I am able to boot up both stock recovery and into download mode
*Using the stock recovery to reset the phone has not fixed the problem
Having never used Odin or installed a custom ROM, I am hesitant to flash anything to the phone until I verify that the new bootloader (that is now possibly there due to the OTA update) and anything I try to install won't conflict and make my problem worse.
It seems to me that I should use Odin to load a custom recovery, make a backup, and then flash a ROM. If that is correct, would the recovery ROM found in this thread be the correct one: http://forum.xda-developers.com/galaxy-s3-att/general/ucufne4-to-ucufnj1-update-t2941792
If it is not the correct ROM, what would be the correct one?
Thank you,
M
For a custom recovery, flash the most recent tar.md5 file from here using Odin: https://goo.im/devs/philz_touch/CWM_Advanced_Edition/d2lte/
Boot into recovery, create a backup, and flash a custom ROM. I recommend the most recent CM10.2 so you can determine the bootloader currently installed on your phone. Once you determine the bootloader, you can decide how you want to proceed.
Thank you so much for your response.
I did as you suggested and I do indeed have the UCUFNJ1 bootloader. That does help me determine which direction I can take. Although, now having tried out a non-Samsung ROM, I may have changed my mind about keeping stock on the phone. If I decide to go back to stock, I'll just keep my eyes open for a stock ROM that states it requires that bootloader, correct?
Again, thank you so much for your help!
I have a Sprint L720 running a odexed stock MK2 rom from circa 2013. I followed all the steps back then flashed a custom recovery and the rom for the hotspot capability and am still extremely happy with how it turned out but... I want all those fancy new features lol. I don't really need anyone to hold my hand through the whole process but I did reformat a few times since then and have a couple questions before I start paperweightin' this.
Everything on here is MK2. Software, Baseband & Build. If i wished to flash a newer lolipop rom to my L720 would I need to apply any updates first? Can I flash the new rom from the custom recovery? I attempted to upgrade the firmware through Kies but keep running into a device not recognized error that I suspect is because I'm rooted. Anyway thanks in advance for your time!
(Mod can you please move this to the correct board, I can't find the option to delete this.)