[General Questions and Answers] jerminhu:
I purchased my tab in China. Samsung China has deleted all Google apps from the pre-installed rom. As a result, the Chinese GT 10.1 community has compiled an Google app pack (GoogleServeice_P7510.zip) to bring back those apps.

I flashed it immediately after I rooted the tab. The Google apps were installed successfully. I entered my google account after the boot and every google app was running without a glitch. But not long after that I found I could no longer enter browser settings anymore. It would always give me a FC when I tried to do so. I then downloaded the dolphin browser. So this problem was bypassed.

Then I found there was something wrong with the superuser, I could not adb remount/push, and it couldn't be revoked by the apps that required root access.

This problem was partially resolved later by flashing the OC kernel for GT 10.1, which secured adb privileges. But the superuser was still problematic. Then I found out that after I flashed any zip other than root.zip in recovery, be it the kernel.zip, the su_busybox_tools.zip or google_servicepack.zip, the superuser icon in the app drawer would always become 4 times smaller (2 time in both height and length) than the superuser app "installed" by root.zip, as well all other apps.

There seemed to be something wrong with this version of superuser app (small icon). Whenever I opened an app that required root access, the superuser prompt window would not pop out. But if I flashed the root.zip again, the big-icon superuser app would be back. And other apps can revoke it most of time. However, it was not perfectly stable. Somethimes, it still failed to be revoked. I have flashed the root.zip among the other 3 zips for many times to get this conclusion.

I then applied the V6 SuperCharger script and flashed the su_busybox tools for GT 10.1 right before that, because SuperCharger script required busybox. However, due to the superuser problem, the SuperCharger script was not fully working. After reboot, part of the settings was changed back to default, because 99supercharger.sh couldn't be run on boot with root and there's not init.d folder in GT Tab 10.1. Then I flashed the OC kernel hoping it will fix all the problems. After that, I surprisingly found out that I was able adb remount and push. But the icon of the superuser app was again back to the small one. So the apps requiring root could not revoke it for permission.

As a result, I flashed the root.zip again. At this moment, superuser works normally, even after some reboots. SetCPU and script manager are able to automatically acquired root access on boot. But when I rechecked the supercharger script, current pages(minfree) were still showing blank.

Other problems include backspace and enter keys not working in terminal emulator/console. And the problem I just found - the notification ringtone list in the system settings and other app (e.g. Gmail) settings was blank. I could not change ringtone, although the system can play it without problem. And the ogg files are still there in /system/media/notifications.

Since all Android devices works more or less the same. I hope some of you phone experts can shed some light on these problem. The user base of Android tabs has made it less supported than Android phones. It'll be highly appreciated if all these annoying problems get fixed.

Thank you!