Baseband Version - 20.4801.30.0822U_3822.10.08.04_M
MD5 - E39A60FE50545C3DADA5EC60EB777680
1. Download the zip.
2. Check the MD5 sum with the MD5Check utility I have attached.
3. Copy the file PG88IMG.zip to your SDCard (root of the SDCard)
4. Restart your phone into the bootloader (or power off and hold the volume down and power button until the bootloader starts)
Thanks - MoKiChU - Providing a direct link to the OTA.
MOD Edit: Link removed because of Ad-Powered hoster