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Just out of pure curiosity is there any easy way to go from 4.2.2 with root and custom recovery to 4.3? I mostly want to keep root because i am running stock TouchWiz anyway. Or if thats not possible what is the best way to to go back to pure stock locked recovery un-rooted to update to 4.3?
http://forum.xda-developers.com/showthread.php?t=2498897
There are plenty of 4.3 and 4.4 roms available that you can flash. Look under Android Developement and original Android development. If you unroot and ota i Believe it will lock your boot loader and you won't be able to change your mind and put a custom recovery back on your phone. You can get the ota release on a custom rom
sent from a Galaxy S4
Hi guys,
Since Cyanogenmod needs your phone to have stock firmware prior to 9.18.79 (which is JB) I've found that the Razr M that's available in Australia (XT905) comes preloaded with JB, and thus I'm wondering if there's a way to revert the phone from JB to ICS in order to unlock the bootloader because apparently the bootloader in JB is patched or something, meaning it can't be unlocked.
I found this link http://www.phonearena.com/news/How-...-M-back-to-stock-ICS-from-the-JB-leak_id35580 but since it's for the Verizon version of the phone and I'm in Australia I was wondering if this method would work for the XT905 version of the phone and if so, does anyone have the stock firmware for the phone as well?
Thanks
DrShellgon :fingers-crossed:
Most likely no. With the xt907's, if you do manage to go back you find that you didn't flash the old bootloader. So it's still not hackable. Currently it is possible to unlock the bootloader on xt907's by UPgrading to the new KitKat release, rooting with towelroot and then you can use the old bootloader hack to unlock.
So your question now turns into, "can you RSD a 907 image onto a 905?" I don't know or have a 905 so I'll let you do the searches. I'd guess flashing the radio from a 907 could lead to a brick, but maybe you only flash part. The signing keys might be different so you'll be hosed.
If you can flash the whole thing, you're gold.
If you can flash everything but the radio, and KitKat will boot with the old radio, (even if you won't get a signal) then do that. I bet nobody knows the answer to this yet. KK might not work, or the new bootloader will think the radio image is unsigned and croak. At this point you're probably bricked until the 905's get KK because you can't downgrade the bootloader.
If KK won't boot with the old radio, will the new bootloader accept the signing keys from the old stuff? Probably not, but if it did, you can replace only the bootloader and then unlock.
BTW: stock images for xt905: http://sbf.droid-developers.org/phone.php?device=20
---------- Post added at 01:25 PM ---------- Previous post was at 12:56 PM ----------
Sounds like you're out of luck see http://forum.xda-developers.com/showpost.php?p=52767459&postcount=22
For instance, I have a newer 4.4.2 firmware, Can i flash a previous version without bricking my device? thanks !
Ev0d3vil said:
For instance, I have a newer 4.4.2 firmware, Can i flash a previous version without bricking my device? thanks !
Click to expand...
Click to collapse
It depends... on what is your current firmware and what firmware you want to fallback...
It depends on your bootloader. If you're on 4.4.2, then most likely your boot loader is also 4.4. If that's the case, then no, you can't go back to 4.3.
Just out of curiosity, why would you want to? Much has been improved from 4.3 to 4.4, and we also have 5.0 now, which is an entirely new creature...
Hi,
i want to buy a new note 4 - the version 910f.
If i update the new phone with stock 4.4.4 rom to the latest 5.1.1 - will there be any problem if i want to install root or anything like this later on? Can i still install custom roms?
I want to now this, becqause if i update my new amazon fire 7 (2015) to latest stock 5.1.1 rom - there is no chance to start recovery anymore for installing custom rom. With only 5.0.1 all is good and i can install custom rom with recovery.
Is there a similar problem with note 4 or can i install latest stock rom and won´t get any problems later?
Only thing i found is that i can´t go back to 4.4.4 when installing 5.1.1? And i can´t go back to 5 when i´m installaing marshmallow because of changing partitions size?
So if i go to stock 5.1.1 it doesn´t matter, because i don´t want to use 4.4.4 and i can still use all stock roms and change to marshmallow later?
Bib_x said:
Hi,
i want to buy a new note 4 - the version 910f.
If i update the new phone with stock 4.4.4 rom to the latest 5.1.1 - will there be any problem if i want to install root or anything like this later on? Can i still install custom roms?
I want to now this, becqause if i update my new amazon fire 7 (2015) to latest stock 5.1.1 rom - there is no chance to start recovery anymore for installing custom rom. With only 5.0.1 all is good and i can install custom rom with recovery.
Is there a similar problem with note 4 or can i install latest stock rom and won´t get any problems later?
Click to expand...
Click to collapse
No problem if you don't plan to use 4.4.4. Note that if you update to latest 5.1.1
>your bootloader will be locked you can't go back to previous roms or use custom roms which are based on earlier versions such as 4.4.4 custom roms or 5.0.1 custom roms.
>you can still root your phone install custom recovery and install custom roms which have newer bootloaders. However rooting 5.1.1 is bit different because with android 5.1.1 there is an extra security layer in the kernel which detects and stops device from being rooted you need a "permissive kernel" to root 5.1.1. And then you can do whatever you like.
Would it be a better decision to stay on 5.0.1 for the moment and later install 5.1.1 custom rom? To not loose unlocked bootloader?
And one more question: if I deactivate bloatware in application setting off stock rom, is bloatware complete deactivated or is it still running in the background somehow?
Bib_x said:
Would it be a better decision to stay on 5.0.1 for the moment and later install 5.1.1 custom rom? To not loose unlocked bootloader?
And one more question: if I deactivate bloatware in application setting off stock rom, is bloatware complete deactivated or is it still running in the background somehow?
Click to expand...
Click to collapse
You can install 5.1.1 with these bootloaders coj3, coi3, pok1 , coh4 these are safe and won't lock your bootloader. i'd recommend 5.1.1 over 5.0.1 because the difference is day and night in long term use (when u have many apps) 5.1.1 is much smoother and better battery life just don't install coj5 or newer bootloaders. I don't use custom roms because in my experience stock rom is the best custom roms have some bugs etc. If you deactivate bloatware in application settings then its no more running in background.
OK, thank you. But so I should deactivate ota updates and flash latest stock update with Odin, so that I don't get latest locked bootloader?
How can i update to latest 5.1.1 update and keeping the (old) unlocked bootloader?
Do i have to donwload version from smamobile and flash with odin? How can i disallow to update bootloader too?
And if i update with ota - i will get latest (locked) bootlader automatically - no chance anymore to remove it?
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I don´t want to root my phone the first time (because of knox) but later on i maybe want to root too.
Bib_x said:
How can i update to latest 5.1.1 update and keeping the (old) unlocked bootloader?
Do i have to donwload version from smamobile and flash with odin? How can i disallow to update bootloader too?
And if i update with ota - i will get latest (locked) bootlader automatically - no chance anymore to remove it?
-----------------------------
I don´t want to root my phone the first time (because of knox) but later on i maybe want to root too.
Click to expand...
Click to collapse
There is no way to be sure if the older bootloader will work with latest 5.1.1 rom. So its better to stick with the bootloader which comes with the rom and yes if you update with OTA you will get latest 5.1.1 and bootloader automatically. Just go to sammobile and download 5.1.1 with COJ3, COi3, or POK1 (nordic countries). and Flash with odin.
Hey guys I'm fairly new to this scene and I was wondering if anyone knows if I'm able to flash a newer up to date bootloader and be able to revert back to an old one.
There's this rom Custom Rom that needs a specific bootloader (AQG5) for Oreo but I'm not to sure if I wanna flash it because I wanna be able to go back the previous version Nougat.
Thanks you. Rei-