Database Users

[Q] Downgrade Lollipop to KitKat, Bootloader & Modem question [N910G]

I am currently on Lollipop on my N910G and I want to downgrade to KitKat by flashing a custom rom in recovery. Do I need to downgrade my bootloader and modem as well? I have been trying to find an Odin flashable bootloader and modem but cant find a download anywhere at the moment.

I went through this process a while ago.
From what I remember, I had to wipe the device in recovery and flash the official kitkat rom.
I think I followed this guide:
http://www.androidexplained.com/galaxy-note-4-how-to-downgrade-to-android-4-4-4-kitkat/

safestrap vs flashfire and locked bootloader?

Hi,
I am running on rooted stocked OC4. This was done following the instruction which uses Flashfire to flash ROM and then ODIN to flash bootloader.
I am now looking to flash custom ROM (T-Mobile ROM specifically). From what I can read, the suggestion is to use safestrap which get around the locked boot loader in order to flash ROM.
However, there has been no update for saftstrap on 5.0.
Flashfire was able to flash stock ROM. Does it mean it has ways to get around locked bootloader?
Thanks

[Q] Do I need to unlock my bootloader to flash a new ROM?

I've rooted and flashed ROMs on several phones but this is my first time on a Samsung device. When I did this in the Moto X Pure I had to unlock the bootloader before installing TWRP and flashing a ROM, but I'm not sure if I need to unlock my bootloader in this phone since I already flashed TWRP and rooted through ODIN.
Do I need to unlock the bootloader to flash a new ROM? (TWRP installed and phone is rooted)
The phone is a SM-G900F running stock 6.0.1 btw

No.

Any method to relock bootloader without downgrading?

I want to relock bootloader without downgrading to (or using) fw340. I intend to flash stock recovery then lock bootloader. After that flash stock pie rom vai stock recovery. does any method exists just to lock bootloader instead of flashing whole rom.

flash custom rom

hello
is it possible to flash a custom rom via odin?
the reason i say this is for some reason now i cannot enable oem unlock in developer settings, keeps showing a device protection function and even when i click enable the slider switches on for a second then goes back. i have tried many stock roms using the latest versions from samsung.
so i am wondering if i can bypass the having to enable the oem unlock to flash twrp recovery then the custom rom and just flash custom rom straight from odin.
james

jamos316 said:
hello
is it possible to flash a custom rom via odin?
the reason i say this is for some reason now i cannot enable oem unlock in developer settings, keeps showing a device protection function and even when i click enable the slider switches on for a second then goes back. i have tried many stock roms using the latest versions from samsung.
so i am wondering if i can bypass the having to enable the oem unlock to flash twrp recovery then the custom rom and just flash custom rom straight from odin.
james
Click to expand...
Click to collapse
In simple terms, you can't flash anything thats not officially by samsung through odin or anything else if you don't have OEM Unlock enabled (or can't enable it due to any reason) ..
Plus as I know.. even if oem unlock is enabled.. odin can only flash official stock roms..
For flashing any custom rom you need to use twrp..
But twrp can be flashed through odin.