- PUT THE .206 UPDATE FILE ON YOUR EXTERNAL SD CARD FIRST.
You will not be able to use your RAZR to put the files on the SD card after you begin. Please do so beforehand.
- Open the Droid Razr Utility 1.6
- Turn your phone off, & then turn it back on holding VOL DWN and PWR to boot into AP Fastboot
- Select Fastboot to .181 in the Utility & follow the onscreen directions
- Let it complete. There will be quite a few errors, don't panic - this is normal.
You are now on what we coined "Psuedo-.181" - some weird hybrid of GB and ICS files. Your phone will not boot at this point.
- Open the unstick ICS tool
- Choose the .206 kernel
- Let it install, and reboot.
Because of this kernel upgrade, you are now able to flash ICS again... even a later version.
- Turn your phone off
- Hold VOL DOWN + VOL UP + PWR, then use VOL DWN to go to "Recovery" and VOL UP to select it
- Press VOL DWN + VOL UP to bring up the menu
- Navigate to "Apply update from external SD"
- Select the .206 zip file you downloaded.
- *IF IT FAILS THE FIRST TIME, TRY THIS PARAGRAPH AGAIN*
And now you're on .206!
If you want root afterwards:
- Turn on your phone and let it boot normally
- Set everything up, and then turn on USB debugging
- Turn off your phone
- Hold VOL DWN + PWR to boot into AP Fastboot mode again
- Open the UnstickICS tool on your computer again
- Install the .85 kernel
- Turn your phone off
- Hold VOL DWN + VOL UP + PWR, then use VOL DWN to navigate to BP Tools, and VOL UP to select it
- Your phone should boot normally.
- Open the Droid Razr Utility 1.6 and select Root ICS.
- Follow the onscreen directions, pressing a button when it finishes rebooting, 3x.
- Turn your phone off again.
- Hold VOL DWN + PWR to boot into AP Fastboot again
- Use UnstickICS to flash the .206 kernel again
- Reboot
You need to do this, because the 4.0.4 kernel is not vulnerable to any root exploits. Going back to a previous kernel (in this case, 4.0.3) will allow you to exploit and obtain root, and then upgrade back to 4.0.4.
Done!
credit: (TSON) @ DroidRZR forums