Instructions for pulling an OTA update.zip:
Do NOT install the update! Do these first!
Be rooted. We got plenty of methods. Motofail2go for ICS, and my RAZRiRoot.zip for turl1's Clockworkmod.
Download the Root Explorer app, or the ES File Manager app. (Instructions are for Root Explorer.)
Open Root Explorer and go to the ~/cache/ directory, which resides on the root directory of the phone '~/'
Hit the 'Mount R/W' in the corner, if successful will then say 'Mount R/O'
Copy the update file .zip from the ~/cache/ to your sdcard, external to be safe. External is in ~/mnt/external1/ and Internal is ~/sdcard/.
Copy over the update file .zip from the sdcard(s) you chose to your computer and upload it.
You will want to use Voodoo's OTA Rootkeeper before updating if you have a locked bootloader, you can find my thread on a RAZR i compatible version here.
Send me or post a link here to the update and exactly what System Version you were on, and where the update takes you to.
The community will thank you for your help!