Samsung Galaxy Tab 7.7 WiFi (GT-P6810) Firmware Overview
What is the latest GT-P6810 firmware?
P6810ZSLP8, released July 17, 2012 for region TGY with Android 4.0. The archive holds 2 official builds for this region.
Is the Samsung Galaxy Tab 7.7 WiFi still getting updates?
Most likely not: there has been no new firmware since July 2012, so Android 4.0 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
GT-P6810 firmware for region TGY
How to Flash GT-P6810 Firmware
Put the Samsung Galaxy Tab 7.7 WiFi into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Use HOME_CSC to keep your data, CSC for a full wipe.