need help about downgrading to jellybean - Droid RAZR M Q&A, Help & Troubleshooting

I want to rollback my motorolra razr m (rooted) to jellybean and want to unlock bootloader so i just downloaded a stock rom of it and start flashing it with rsdlite when i started i just got an error saying gpt_partition_failed and then my phone got brick i fixed it back but i want to downgrade it. my razr m's build version is july 29 2014 please need help . Thanks in advance, any help would be appreciated.

you can't downgrade if you have a locked bootloader, according to your build version, you can't unlock your bootloader
通过我的 DROID RAZR M 上的 Tapatalk发言

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What system version can be rooted & flashed?

I recently bought a Razr M with the goal of having it flashed to work on Page Plus. It has the latest Android build 98.18.94 which I understand cannot be rooted. Do I need 98.15.66 or something even earlier?

[Q] i can't update to kik kat official

Hi, i'm from Argentina, I own an unlocked Razr M. When i got the official Kit Kat upgrade, my touchscreen got locked.
In Jelly Bean, I pressed the corners of the screen and I was able to skip the block, i don't have a Verizon chip. I can only install up CM11 M8 because i "need" kit kat bootloader.
BL: unlocked
You can find the latest KitKat FXZ for RSD Lite here or CM11 M11 for JB bootloader here.
lem22 said:
You can find the latest KitKat FXZ for RSD Lite here or CM11 M11 for JB bootloader here.
Click to expand...
Click to collapse
thanks! this time it worked very well FXZ Firm

[Q] Basic Steps to my new Razr M

Hello xda.
I've read a lot in here already, but I just want to confirm the steps to have a fully BL Unlocked device to have CM12 or any other ROM:
1. I have 99% sure that it will come with JB, therefore, I need to root using the towelroot.
2. Use Motopocalypse to unlock my Bootloader.
3. Update my Razr M to KitKat (without touching the recovery partition), this I may achieve by receiving an OTA, but I'm not sure i'll get here in Brazil, I didn't find any zip of this (Shoud I install KK via RSDLite?). That way, my Razr M will have KK Bootloader, witch will allow me to install CyanogenMod.
Please tell me if it is correct, and I'll also update this post :highfive:
Thank you!
djlucask said:
Hello xda.
I've read a lot in here already, but I just want to confirm the steps to have a fully BL Unlocked device to have CM12 or any other ROM:
1. I have 99% sure that it will come with JB, therefore, I need to root using the towelroot.
2. Use Motopocalypse to unlock my Bootloader.
3. Update my Razr M to KitKat (without touching the recovery partition), this I may achieve by receiving an OTA, but I'm not sure i'll get here in Brazil, I didn't find any zip of this (Shoud I install KK via RSDLite?). That way, my Razr M will have KK Bootloader, witch will allow me to install CyanogenMod.
Please tell me if it is correct, and I'll also update this post :highfive:
Thank you!
Click to expand...
Click to collapse
I don't have all the answers, but in US, the phone came with JB. If you install the OTA, it will lock the bootloader with no current remedy. Maybe it's OK if the bootloader is unlocked before you install the OTA, but I'm not sure.
If you do receive an OTA, chances are that it's of the 18x.46.15 version which will patch the bootloader unlock exploit, requiring you to unlock before that. However, since not all Jelly Bean builds are unlockable, I'd advise updating to 18x.46.10 (mind the last two digits!) via RSD Lite and unlocking from there. Guides are there in the General section.
Sent from Google Nexus 4 @ CM12
[WARNING: XDA Premium 4.0.13+ lacks Signature function - do not update]
Thank you for the replies, I received a OTA, getting the 283.46.10 firmware, and I did almost exactly what I mentioned at the first post (after receiving the OTA, not before).
And now I have unlocked BL and will get CM12, thank you!

[Q] Help with JJBL to KKBL

Hey guys, I've recently inherited a relatively unused xt907 vzw that I plan to use when travelling. It was still running ICS when I got hold of it. I'm currently unlocked and rooted and running the latest nightly build for jbbl. As it seems like support is ending for jjbl roms, I'd like to update the bootloader (but remain unlocked and rooted) so I can put lollipop on this phone. Having only used Samsung phones before, I'm a bit of a moto noob, so any help or advice would be appreciated.
I suspect I need to use RSD lite to flash the .10 baseband firmware, right? I'm aware of the issues with .15.
If it matters, my current baseband version is SM_BP_101032.021.32.80P
Thanks in advance.
Since your bootloader is unlocked - you can flash whichever firmware you want with RSDLite. If you want the KKBL, you will need to flash either the .10 or .15 Razr M KitKat firmware or even the .10 luge KitKat firmware - your choice.
Sent from my Moto G™
ATTACK said:
Since your bootloader is unlocked - you can flash whichever firmware you want with RSDLite. If you want the KBBL, you will need to flash either the .10 or .15 Razr M KitKat firmware or even the .10 luge KitKat firmware - your choice.
Sent from my Moto G™
Click to expand...
Click to collapse
Thanks a lot, ATTACK. Is there one in particular you'd reccommend (or reccommend avoiding)?
horseycraze said:
Thanks a lot, ATTACK. Is there one in particular you'd reccommend (or reccommend avoiding)?
Click to expand...
Click to collapse
Flash the .10 Razr M firmware (KDA20.62-10.1).
Head here > http://forum.xda-developers.com/droid-razr-m/general/guide-faq-how-to-root-boot-unlock-t2869432
Thanks again, ATTACK, this worked great I've got CM12 up and running. I had to install a CM11 4.4 build before CM12 because of bootlooping (tried multiple recoveries and CM 12 nightlies).
So in case anyone else comes across this: KDA20.62-10.1->CM 11->CM 12. Works like a charm.

[Q] No system update for razr m!? Help please

Hi, i just bought a razr m which is on jellybean 4.1.2 (98.18.72)..by checking system updates i get the notification that my system is already up to date
Is there any way to manually update to a Kitkat version by which i can root the phone and install custom lollipop roms?
Please excuse me if the question has already been asked but i wasnt able to find it, thanks!
Be sure to flash the .10 firmware and unlock your bootloader.
> http://forum.xda-developers.com/droid-razr-m/general/guide-faq-how-to-root-boot-unlock-t2869432
Sent from my XT1031

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