I have a galaxy tab with following specs
Model number: GT-P7510 Android version: 3.1 Kernel version 18.104.22.168 se.infra@sep-58#1 Build number: HMj37.UEKF3 P7510UEKF3
I have tried
-- Settings > Privacy > Factory reset -- Powered off the device -> Up Key + Power button -> Recovery mode > Factory reset
, but its not resetting the tab to factory settings, After restarting its always showing me already installed applications and gmail/facebook account.