Hi! This is my METHOD to gain ROOT for Motorola Droid Razr Maxx HD XT926m that is already updated to the last version of KitKat 4.4.2 (System version "183.46.15.XT926.Verizon.en.US").
Normally, only the version "183.46.10" (or "182.46.10") can support root: you wiil read this on all the sites. The version "183.46.15" doesn't support root and can't be downgraded to an earlier version in order to gain root. But I found out a method to downgrade it and I will share with you the trick. My XT926m had an unlocked bootloader (ICS 4.0.4) and I flashed via RSD Lite the last stock firmware, "183.46.15"... After that, I was totally unhappy, because I read that this firmware version don't support root...
But now, after I 'created' this method, my phone is again rooted... Enjoy the steps!
[lock]1. Download the files "VZW_XT926_4.4.2-KDA20.62-10.1_CFC_1FF.xml" and "VZW_XT926_4.4.2-KDA20.62-15.1_CFC_1FF.xml" from the Motorola firmware site: "http://motofirmware....files/file/"...
2. Unpack the files...
3. Substitute/replace the "gpt", "tz" files (FROM the folder with "15.1" version TO the folder with "10.1" version)... You should replace all the files that "RSD Lite" will tell you that don't fit when you try to flash the new stock firmware. You will obtain a MODIFIED version of "183.46.10" stock KitKAt 4.4.2 firmware!!!
4. Flash this MODIFIED "10.1" firmware with "RSD Lite v6.1.5 Multi-Flash" (without using Rsd Script Generator.jar)
5. Download from Play Store and install the "Towel Root.apk" and root the phone...
6. Now your phone should be rooted. Download from the Play Store and install "Superuser.apk" made by ClockWordMode and after reboot the application will ask you to update SU binary. In my case, the SU binary didn't support an online update and I installed the "Superuser.zip" file downloaded from the ClockWorkMode site, via recovery method, in order to gain this update (you can do this as well, if you already have a TWRP or CWM recovery installed on your phone). With the other version of superuser, like "SuperSU.apk" or "Superuser.apk" ("eu.chainfire.supersu-2.apk", the last version, 5.6mb, for example) you will need to follow the same steps...
7. Using "Total Commander.apk", you can go to "File System root"/"Etc"/"installrecovery.sh", and finally rename this last file... Or you can use "ES3 File Explorer.apk" in order to rename the same "installrecovery.sh" file in "Device"/"Etc" folder (choose, for example, the name "installrecovery.shbak")...
8. Flash with "Flashify.apk" (downloaded form PLay Store) a new "recovery img.": "TWRP.img" (2.8.3.0) or "CWM.img" (6.0.4.8) for KitKat... You can find them on "http://rootjunkysdl....folder=Firmware"...
9. If you flashed "TWPR recovery.img" you will need to install "Stericson.busybox-1.apk" (from Play Store...), because TWRP works with this busy box... (You could install "TWRP.apk" as well, but you must be careful, because you will need to ne able boot in recovery mode directly from your phone (with the combination key), not from this app... Many times, the phone is able to boot into recovery mode from TWRP application, but not from the bootloader... That's why it is better to uninstall TWRP application if you have this problem). If you flashed a "CWM.img" you can install "RomManager.apk".
10.Now it is the time to backup your system to SD card!
11.Now you should try to unblock your bootloader, if your phone is still locked... You can use "Motopocalypse.zip" file from your computer or "Motopocalypse.apk" from your phone, but I don't kknow if it works because my phone was already unlocked...
12. That't it!... I hope that you can now flash whatever ROM you want!!![/lock]
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