A new Ice Cream Sandwich Android 4.0 update for the HTC Vivid is now available, thanks to the guys at Brief Mobile. It’s available in RUU executable form and will bring the software version up to 3.38.662. You’ll probably need to be on Android 4.0 already if you want to update to the latest version.
If you want to update your HTC Vivid using the RUU, simply download the RUU executable file from the Brief Mobile website, enable USB Debugging on the phone from Settings » Development options, connect the phone to the computer, then run the RUU file and follow on-screen instructions to complete the update.
Do let us know what changes and improvements you notice after the update, in the comments below.