To flash any sort of custom ROM like the AOSP Android 4.1 jelly bean ROM for the Galaxy tab 8.9, you need to have some sort of ClockworkMod Recovery (CWM). With the ClockworkMod Recovery, you will also be able to install myriad unofficial updates that keep popping up on XDA and sources like sammobile. Here are how you can download ClockworkMod Recovery to your Samsung Galaxy Tab 8.9 tablet.
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