I am running stock right now (JB 4.2.2) and I am planning to flash a Lollipop ROM (AICP 10). If I create a backup (for my stock ROM) at TWRP and did the needed measures to flash the Lollipop ROM and was successful however I want to return to stock ROM. Do I just have to factory reset and restore my stock ROM backup to have a stock ROM again? Sorry for this noob question.
Heeeeelp!
Any idea if that would work?
Just use odin to flash any stock rom
So backup-ing in TWRP before I flash Lollipop from my current rom [Stock JB 4.2.2] is useless?
You can also use your backup from TWRP.
But It will then show that it has been modified, could be a problem with the warranty.
If you want to go back completely for warranty then odin is the way to go
Thank you! I actually don't care about warranty since mine is overdue already. All I wanted to know was if I will be able to go back to JB 4.2.2 with that backup in case I have problems with Lollipop.
Related
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 read some worrisome posts that once you upgrade the bootloader to 4.4.2 you cannot go back. I'm currently running fully functional 4.3 rom and have nandroid backup of it, where everything is working. I'd like to try to upgrade to KitKat rom, but if things don't go well for whatever reason - I'd like to have the security of knowing I can restore the nandroid of my working 4.3 rom. Based on what I read it may not be possible. My nandroid backup has all partitions in it, including boot and recovery (twrp 2.6.3.8). Can anyone confirm or deny if I'm on 4.4 rom with 4.4.2 bootloader, running twrp 2.7 - will I be able to restore my 4.3 nandroid, if needed?
Apo11on said:
I read some worrisome posts that once you upgrade the bootloader to 4.4.2 you cannot go back. I'm currently running fully functional 4.3 rom and have nandroid backup of it, where everything is working. I'd like to try to upgrade to KitKat rom, but if things don't go well for whatever reason - I'd like to have the security of knowing I can restore the nandroid of my working 4.3 rom. Based on what I read it may not be possible. My nandroid backup has all partitions in it, including boot and recovery (twrp 2.6.3.8). Can anyone confirm or deny if I'm on 4.4 rom with 4.4.2 bootloader, running twrp 2.7 - will I be able to restore my 4.3 nandroid, if needed?
Click to expand...
Click to collapse
From everything that I have read the answer is no. It does not matter that you have a backup of the 4.3 bootloader. When you flash the 4.4 bootloader it trips a qfuse (I am not to familiar with qfuse, but that is what everyone is saying) and at that point you cannot revert to the old bootloader.
SM-N900T: Powered by X-Note V13/CivZ-SnapKat 2.1
I'm currently on G2 apps rom V5, but wanted to try out KitKat and Sphinx rom,
I know there is the KDZ method of going back to stock, however I was wondering if I could load my backup from stock JB 4.1.2 before installing G2 apps V5, unroot, and then work from there. Is this method possible? Thanks!
colddecked said:
I'm currently on G2 apps rom V5, but wanted to try out KitKat and Sphinx rom,
I know there is the KDZ method of going back to stock, however I was wondering if I could load my backup from stock JB 4.1.2 before installing G2 apps V5, unroot, and then work from there. Is this method possible? Thanks!
Click to expand...
Click to collapse
I don't quite understand what you're asking, but I'll try my best to answer.
Are you asking about the stock OTA Kitkat when you say "Kitkat"?
If so, then if you restore that backup, then you'd also have to somehow restore the recovery or else the OTA will not work.
You will be back on stock 4.1.2 though and can flash any rom you want, so if you get one of the flashable versions of the stock Kitkats, then you can flash it without issue.
If you are on the E980, then the flashable Kitkat is here: http://forum.xda-developers.com/showthread.php?t=2760895
You shouldn't have to return to stock to flash Sphinx. All you'd need to do is format System, Cache, Dalvik, and Data, then flash.
Thanks for the reply sorry for not being more specific.
I have a 240L that was on 4.1.2 when I rooted and flashed the g2 apps rom.
I have been reading that I will brick the phone if I try to flash from my current rom, and that I need to OTA update from 4.1.2 to 4.4.2 as well. I didnt realize about the stock recovery though so the only way to get that back is thru flashing the KDZ file anyway?
Thanks again for the reply!
spexwood said:
I don't quite understand what you're asking, but I'll try my best to answer.
Are you asking about the stock OTA Kitkat when you say "Kitkat"?
If so, then if you restore that backup, then you'd also have to somehow restore the recovery or else the OTA will not work.
You will be back on stock 4.1.2 though and can flash any rom you want, so if you get one of the flashable versions of the stock Kitkats, then you can flash it without issue.
If you are on the E980, then the flashable Kitkat is here: http://forum.xda-developers.com/showthread.php?t=2760895
You shouldn't have to return to stock to flash Sphinx. All you'd need to do is format System, Cache, Dalvik, and Data, then flash.
Click to expand...
Click to collapse
I'm currently trying to flash stock firmware via KDZ, however, the method provided on xda is not working for me.
LG Support tools is telling me that my software is updated already and is not letting me flash the KDZ.
What am I doing wrong? Please help, thank you...
So I have a Sm-t700 running on cm12 with twrp custom recovery and I want to go back to kitkat stock rom. Is it as simple as just using odin to flash the stock rom or do I need to do anything else, just want to avoid bricking my device thanks in advance.
The best way to return to kit kat is like you say. Using Odin and a proper stock rom; before that don't forget previously make a full wipe through recovery
Hello guys,
following situation:
Long time I had a 4.4.something Rom installed. Before I flashed a custom Lollipop rom, I followed the advice to just go back to stock and let it update to Lollipop so that the firmware will be updated accordingly and I won't run into problems when flashing a Lollipop Custom Rom. Everything worked fine. Now I had to send my phone to HTC for display repair and just to make sure they won't nag about the custom Rom I reflashed some older stock rom via TWRP backup I found here, I think it was a 4.0 or so. The question is, does this also affect my phones firmware or is it still on the current newest level? So when I get it back, would I need to update to stock Lollipop again before flashing a custom rom or can I go for it straight away?
fBx said:
Hello guys,
following situation:
Long time I had a 4.4.something Rom installed. Before I flashed a custom Lollipop rom, I followed the advice to just go back to stock and let it update to Lollipop so that the firmware will be updated accordingly and I won't run into problems when flashing a Lollipop Custom Rom. Everything worked fine. Now I had to send my phone to HTC for display repair and just to make sure they won't nag about the custom Rom I reflashed some older stock rom via TWRP backup I found here, I think it was a 4.0 or so. The question is, does this also affect my phones firmware or is it still on the current newest level? So when I get it back, would I need to update to stock Lollipop again before flashing a custom rom or can I go for it straight away?
Click to expand...
Click to collapse
It won't affect your firmware.
Okay thanks, so Firmware should still be up to date and I can flash a Lollipop Custom Rom. I don't know what they do at HTC repair, if they only reset it or if they also update it, well I'll see.