hey guys,
i am a noob when comes to custom roms.so i need help here.
i want to install a custom rom on my rogers samsung s3 i747M unlocked.
i want to install a custom rom cus the battery backup sucks and i want to improve it.
so if someone could provide me a link to a good custom rom that will increase the battery backup as well as performance and the tutorial to install the rom,that will be really helpful.
and also i want to know if i can unlock the phone on custom rom once again.
thanks.
What ROM is currently on your phone?
Once carrier/sim unlocked, the phone will remain unlocked even after flashing ROMs.
Related
Hi all,
I'm planning to start installing custom ROM's and haven't yet installed CWM. I don't plan on changing the kernal, as I hear issues about battery drain etc, and I just wanted to know which Custom ROM's I can use without flashing anything extra, as in just going on CWM, and installing a .zip?
Thanks in advance!
Anyone? :/
Under the heading stock based ROMs from here:
http://forum.xda-developers.com/showthread.php?t=1294129
Its not a complete list and you should still always read to make sure you don't need to flash a kernel along with it. If you flash a ROM that requires a custom kernel on locked bootloader you will brick your phone, so read carefully.
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.
Hi,
I bought a locked Samsung S3 (At&t). It is rooted with cyanogenMod 10.2 Android 4.3.1. All i was trying to do is unlock it so i can use it with other carrier. So i bought the unlock codes for 30 bucks but later i found out that the unlock codes only work with Stock rom. I am not an expert at this Root, Custom Rom...stuff, but not idiot either i can follow step by step directions if anyone knows how to make this work. I would like to use the custom rom though, so do i have to recover in stock rom, unlock the phone using the code and than install the custom rom again?
Plz help
Hi!
zeshanlahoria said:
[...] do i have to recover in stock rom, unlock the phone using the code and than install the custom rom again?
Click to expand...
Click to collapse
Yes, that is what you will need to do. As you can only enter an unlock code on a stock ROM (or one of the numerous custom ROM based on the stock one), you won't be able to make it work on CyanogenMod or any AOSP derivatives. You will have to revert back to stock, then (if you want to try a cutom ROM) install another custom ROM of your choice, be it CM or anything else.
Though if you currently have CM installed in your device, you most certainly already have a custom recovery (TWRP, CWM, PhilZ Touch...), which make it even easier for you to flash ROMs at your will -- the step of installing a custom recovery is already done. So browse the AT&T SIII Android Development forum, choose a stock-based ROM, install it -- pay close attention to the installation instructions in the ROM's thread --, unlock your phone; then repeat those steps to install another ROM if you want to.
Alexandre-P said:
Hi!
Yes, that is what you will need to do. As you can only enter an unlock code on a stock ROM (or one of the numerous custom ROM based on the stock one), you won't be able to make it work on CyanogenMod or any AOSP derivatives. You will have to revert back to stock, then (if you want to try a cutom ROM) install another custom ROM of your choice, be it CM or anything else.
Though if you currently have CM installed in your device, you most certainly already have a custom recovery (TWRP, CWM, PhilZ Touch...), which make it even easier for you to flash ROMs at your will -- the step of installing a custom recovery is already done. So browse the AT&T SIII Android Development forum, choose a stock-based ROM, install it -- pay close attention to the installation instructions in the ROM's thread --, unlock your phone; then repeat those steps to install another ROM if you want to.
Click to expand...
Click to collapse
Could you please direct me to how to unroot? I am able to go into the recovery mode but not really sure how to go on from there. I appreciate the help.
zeshanlahoria said:
Could you please direct me to how to unroot? I am able to go into the recovery mode but not really sure how to go on from there. I appreciate the help.
Click to expand...
Click to collapse
Before you flash a stock ROM, you would need to check what bootloader your phone is currently on as flashing the wrong one could cause your phone to brick or become unusable. Custom ROMs like the CM you currently have do not have their own bootloaders but rely on manufacturer's bootloader to run. The bootloader, quite simply, is a small application that loads the operating system and all other applications & systems required for the phone to run once it is powered on. Therefore, with a faulty bootloader, your phone can not gather all the resources required to power on successfully. If your phone is running on the 4.3 bootloader which would be the case if it was on 4.3 before the update to a custom ROM, then you would have to return to stock Android 4.3 which is the latest OS available for the AT&T GS3. However, if it has an older bootloader, then you can flash Android 4.1.1 via Odin.
There are different sets of instructions for either system so I would suggest you check your phone's settings and advise the OS parameters you can see there so we can steer you in the correct direction.
zeshanlahoria said:
Could you please direct me to how to unroot? I am able to go into the recovery mode but not really sure how to go on from there. I appreciate the help.
Click to expand...
Click to collapse
Did the phone originally have 4.3? or did it have an older version before you installed CM 10.2. This would determine how you would go about it.
Also is there a custom recovery like clockworkmod installed?
I looked around but couldn't find stock roms without bootloaders.
I don't have linux OS and I was wondering if someone could help create a flashable rom without the bootloader.
This is the reason why I'm looking for it:
http://forum.xda-developers.com/galaxy-note-2-att/help/i317m-bricked-flash-recovery-mode-t2893255
tl;dr Odin flash is failing and want to try rom without bootloader
thanks!
If you know how to port Roms then look in the sgh-i317 development. I know there is a 4.4.2 rom there without a bootloader.. Not sure if you could flash it as is or not seeing to be it's not for the sgh-i317m.. Might be worth looking into tho..
Hi guys
Yesterday I got my SPRINT galaxy note 4 which I bought from ebay, I'm not in USA and I want to unlock it. There is app called SSU to unlock sprint galaxy note 4 for international use but it require kitkat or lollipop custom rom to unlock phone. But unfortunately phone came with 5.0.1
So now i want to flash custom rom to unlock it. Anyway I prefer stock rom so that I can backup and restore after unlock it, So guys I wanna know what are the good custom roms to do that process. ?
Many thanks in advance
Any idea ?
Yea to use ssu u need to root the device with cf_auto root n flash twrp with flashify then choose a custom rom. If i has oe1 or of5 forget sbout it