Samsung Galaxt Tab 8.9 (Wi-Fi) stuck in charging screen, doesn't turn on at all
Well, no points to leave comment, so here is my (unchecked) advice. 

Since You can login via adb, remove zip from sdcard, and reboot tablet into recovery mode, and select restart. I don't think flashing anything or selecting 'wipe' is necessary. Probably the patch didn't even apply. If this will not fix it, then I guess You'll need to adb push working ROM and repeat update from sdcard procedure in recovery mode.