ics 4 manual update
http://android.clients.google.com/packages/ota/google_crespo/VQ8PQk_V.zip
To begin, download the update form the link above, rename it to update.zip and copy it to the root of your SD card.
Power the phone off and reboot into bootloader mode. (Hold Volume up and the Power button.)
Select Recovery from the menu to boot into recovery.
When you see the warning triangle and arrow, hold the power button and tap volume up. You’ll see a menu.
Select apply update from /sdcard and select the update.zip.
Once the update is flashed, simply reboot your device and cross your fingers.