Samsung has started rolling out official Android 4.2.2 update for its Galaxy Tab 2 10.1 P5110 users. If you are running on stock ROM, just go to the update tab under settings and tap on ‘check for update’. Here are the details of the ROM.
Model: GT-P5110
Country: Australia
Version: Android 4.2.2
Changelist: 1238973
Build date: Tue, 13 Aug 2013 11:16:35 +0000
Product Code: XSA
PDA: P5110XXDMH2
CSC: P5110XSADMH1
MODEM: P5110XXDMH2
However, if you are running a custom ROM on Tab 2 10.1, and want to update to this official ROM, download it from here and put your tablet in download mode (vol down + power button simultaneously). After that, connect your tablet and fire up ODIN on your computer and select the ROM by clicking on PDA button. While this update is only for Australia Tabs, anyone with P5110 can flash it.
If you experience problems like unable to download anything, go to recovery (vol up + power button) and do a factory reset/wipe cache/wipe dalvik.