Note: This is ONLY for XT910 variants. Flash at your own risk. If you brick the phone, it is a risk you have to bear. We will not be held responsible. DO SO AT YOUR OWN RISK.
Method by: almstag (XDA-Developers Forum)
This is what happened to me.. i purchased a brand new Motorola Razr XT910.. and soon after that, before i even rooted the device.. i did the OTA update.. BIG MISTAKE.. turns out the new firmware 65.1.21.xt910 cannot be rooted.
So the only way, at least as I am writing this guide, is to downgrade, root, protect root, and revert back to 65.1.21.xt910.
So here is a guide from almstag, of XDA-Developers forum, which is the guy who’s post helped me root my phone.
First, you will need some files.. download these in advance.
1. Moto Helper
3. Fastboot File: Download SPDREM_U_01.6.5.1-73_SPU-11-PASS-10_SIGNEuropeAustraliaEMEA_USASPDRRTGB_HWp2b_Servi ce1FF_fastboot.xml.zip
4. ROM for Razr Asia Recovery
5. Root Files (DooMLoRD_v4_ROOT-zergRush-busybox-su.zip)
6. Razr Bootstrap Recovery
Lets Start with Downgrading via Fast Boot
OK.. currently there is no Fastboot for 65.1.21.XT910.PSHAsiaRetail.en.03, so we are going to do, is to flash Europe’s Fastboot file 651.73.23.xt910.retail.en.eu to your phone.
Step 1: Flash the 651.73.23.xt910.retail.en.eu to Your Phone
1.1 Boot your phone into AP Fast Boot Mode
Switch off your phone, then hold to the power key + Volume Down + Volume Up
You should get something like this
1.2 Connect your phone to your PC Via USB cable
1.3 Flash the firmware into your phone
Step 2: Root your phone..
2.1 Extract the Root files you downloaded earlier (DoomLord)
2.2 Enable debugging mode on your phone
Go to Settings->Applications->Development->[Tick USB debugging]
2.3 Connect your phone to PCl
2.4 Set USB connection to “Charge Only”
2.5 Run the “Runme.bat” from Doomlord’s file
2.6 Thats it.. your phone is now rooted.
Step 3: Bootstrap Recovery
3.1 Install Razr Bootstrapper (APK) to your phone.
You will need to copy this APK file to your phone’s SD card
3.2 Copy the Razr Asia Recovery.zip to your phone’s SD card
3.3 Run Razr Bootstrapper
3.4 Select “Bootstrap Recovery”
Superuser will prompt for permissions
3.5 Select “Reboot Recovery”
3.5.1 The phone will reboot into Clockworkmod Recovery
3.5.2 Select “Install zip from SD Card”
3.5.3 Flash the software
If you are unable to complete this step, please skip to the last part.. because i encounter “installation aborted” error
Step 4: Preserve your Root
4.1 Install from market Voodoo OTA Rootkeeper
4.2 Backup the Root
4.4 Install the 65.1.21.XT910 update (OTA)
4.5 Use Voodoo OTA Rootkeeper to restore root
Ok.. now for the difficult part. What if you encounter problem at step 3. I encountered installation aborted error message. No matter how many times i try, i still get that error message.
Thanks to almstag from XDA-Developers forum, he taught me what to do.
1. Download this stock ROM
2. Make a folder on your ext-sd and name it “clockworkmod”
3. Go to clockworkmod, and make a new folder inside it, named “backup”
4. Extract the downloaded 6.5.1_73-spd-ird-12 into the backup folder (ext-sd\clockworkmod\backup)
5. Run Razr Bootstrap on your phone and go to recovery
6. Scroll down into “backup & restore”
7. Restore 2011-12-220.127.116.11
8. After complete, wipe cache, and then reboot.
DONE! you can now proceed with step 4.
does this really work?ReplyDelete
It works. I'Ve done this on my Droid. Malaysian too btw.Delete
Yes, it really does work.. at least on my Malaysian XT910..ReplyDelete
Hey Harold thkz alot for this! i downloaded all the other files ready accept for the fast boot file seem like its remove or link down?ReplyDelete
Thanks for your post, is it possible to update to 65.1.12.XT910.AsiaRetail.en.03
and for 65.1.12.XT910.PSHAsiaRetail.en.03, I cannot share the 3G network by wifi hot spot, is there any solution?
Last question, http://www.4shared.com/zip/K5sSRyU7/RAZR-651_73-spd-ird-12.html for this rom, what the function it is??
Sorry for too many question, thanks
Will I lose all data with step 1?ReplyDelete
Harold, just a comment. Use Doomlord V3 to root. V4 does not work for some reasonReplyDelete
Harold you can also do this by downloading OTA Rootkeeper from the market :)ReplyDelete
thanks for your comments.. v4 works just fine for me..ReplyDelete
OTA rootkeeper? thats what i use to protect root..
zmarsun, it is the rom to restore just incase you cannot restore back to pshasia ROM..
i guess the link to rom might be down due to the file sharing site being sued..
ROM for Razr Asia RecoveryReplyDelete
where can i download this file , every link I could find is of multiupload it doesnt work,
I want the recovery file for razt xt910, 18.104.22.168.xt910PSHAsia retail
please can any1 can help
i'll try to upload the ROM again tonight..ReplyDelete
Harold, have you got ICS yet?ReplyDelete