[Q] Downgrade Lollipop to KitKat, Bootloader & Modem question [N910G] - Galaxy Note 4 Q&A, Help & Troubleshooting

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/

Related

Upgrading stock JB Rom to Custom Kit Kat?

Hi Sifus,
I owned a SM-N9005 Note 3, with Stock MJ1 Rom, rooted with CF-Auto and installed with TWRP (hlte) 4.3.
So I understood that once upgrading to KK, there's currently no way to downgrade back to JB thus taking this pre-caution to ask for advices. (correct me if I'm wrong)
I am intended to upgrade my Note 3 to a custom KK ROM (eg: XRom, Omega Rom, etc...) however, I am not too sure what's the next step I need to take?
(A) Since I'm rooted with TWRP, go ahead and download the ROM from developer and follow instructions to flash?:victory:
(B) Since I'm still with JB, I need to flash to Stock KK before flashing any custom KK ROM?
(C) Other better ways?
Regards,
SiLvErBoLd17
Some advises please? Anyone?
re: upgrade firmware.
silverbold17 said:
Hi Sifus,
I owned a SM-N9005 Note 3, with Stock MJ1 Rom, rooted with CF-Auto and installed with TWRP (hlte) 4.3.
So I understood that once upgrading to KK, there's currently no way to downgrade back to JB thus taking this pre-caution to ask for advices. (correct me if I'm wrong)
I am intended to upgrade my Note 3 to a custom KK ROM (eg: XRom, Omega Rom, etc...) however, I am not too sure what's the next step I need to take?
(A) Since I'm rooted with TWRP, go ahead and download the ROM from developer and follow instructions to flash?:victory:
(B) Since I'm still with JB, I need to flash to Stock KK before flashing any custom KK ROM?
(C) Other better ways?
Regards,
SiLvErBoLd17
Click to expand...
Click to collapse
#1: Goto http://SamMobile.com and download the latest official stock
KK 4.4.2 firmware for your phone's model Note 3 (N9005).
#2: Download cf-autoroot from: http://download.chainfire.eu/352/CF-Root/CF-Auto-Root/CF-Auto-Root-hlte-hltexx-smn9005.zip
#3: Unzip cf-autoroot into an empty folder on your computer's desktop
and copy the new odin flash kk firmware and twrp into the same folder.
#4: The cf-autoroot zip file comes with Odin which is needed to flash
the stock official firmware, cf-autoroot and twrp recovery.
#5: Download TWRP from here: http://goo.im/devs/OpenRecovery/hlte/openrecovery-twrp-2.7.0.3-hlte-4.4.img.tar
#6: Perform a full wipe including Wipe Data, System, Cache, Dalvik and
last but not least a factory reset in twrp recovery.
#7: Odin flash the stock official firmware which you have downloaded.
#8: Odin flash cf-autoroot.
#9: Odin flash twrp recovery.
Once you have done the above you will be able to flash any of the zip
file custom roms which are designed for the Note 3 N9005 phone.
Good luck!

[Q] [Help] G900F Modems

Hi
I have a G900F and was going to install the alliance rom http://forum.xda-developers.com/showthread.php?t=2716535
It said i had to update my bootloader and modem first, i downloaded the files and did this but now my phone is stuck in boot loop.
How can i fix this please are there any stock modems or bootloaders i can renstall via odin to fix this?
EDIT: FIxed now i downloaded stock firmware and reinstalled and started from scratch.
Many thanks
When I updated my S5 from ANG2 to ANL1 through Odin the modem/baseband didn't change and is still on ANG2. From where can I download just the basebands of the SM-G900F so that I can flash the latest ANL1 modem (and later the lollipop bootloader, modem and kernel)?
Also will flashing stock Lollipop on my phone change both baseband and rom or I would have to change baseband manually (don't know from where to download it :/).

[Q] Upgrading bootloader

Hello,
I'm on one of the old crash lollipop roms with a kitkat bootloader, baseband, etc. How do I change modem and bootloader to lollipop?
Thanks
you just can't. nobody has ever done it before. maybe in a year or so...
zeroundead said:
Hello,
I'm on one of the old crash lollipop roms with a kitkat bootloader, baseband, etc. How do I change modem and bootloader to lollipop?
Thanks
Click to expand...
Click to collapse
Go to sammobile.com and download the latest firmware for your phone. Use Odin to flash it.
If you are rooted and have custom recovery like TWRP - do a nandroid first than once the stock has completed you can re-root, flash the custom recovery again and then restore system and data from the nandroid and you should be back to normal but with updated BL and modem.

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

Bootloader question

I don't know if I'm in the correct forum for this, but I'm confused about BL's and need a some assistance. I recently went from a rooted stock ni2 4.4.4 rom to CVertigo1's no-bs bpb1 5.0 rom. I have successfully unlocked my bootloader again and flashed TWRP 3.0.0. Everything's running fine at this point. I want to return to stang5litre's 5.0 dev ed rom that I was running when I ran into a camera failed issue, screwed the phone up and odin'd back to ni2 and rerooted. Phone Info is telling me that I have g900vvru1ani2 bootloader version. I thought I needed to be on a 5.0 bootloader to run a 5.0 rom? BOK3 pda and csc versions and bpb1 baseband.
Do I need to worry about the bootloader?
Can I install stang5litre's rom with my phone the way it is?
I'm able to flash in TWRP, and have used odin repeatedly.
Any help please?
Thanks
Don't know how I didn't see this. Can I follow jrkruse's instructions for updating /downgrading bootloader on page one of the bootloader unlock thread?

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