I'm using a Galaxy Tab 10.1 3G (GT-P7500), Android 3.1, Baseband version P7500XXKG7, Build HMJ37 P7500XWKG9, rooted. (I got it with 3.1 and TouchWiz preinstalled.)
A few weeks ago, I got a notification about an OTA update. The only information I get about this update is:
Update details (9.61MB) Improved stability.
Trying to install this update reproducibly fails. It downloads, then asks me whether to install. I confirm, and it tells me that it will reboot the device. The device reboots. During the reboot animation, I see a low-resolution progress bar that runs until about 25%. Then it reboots again, I enter my PIN and it tells me: "Failed to update firmware. Try again using PC software (Kies) or visit a Samsung service centre". It does not give me any details as to why it has failed.
I connected DDMS to the device during the update, but (as expected) it doesn't show anything during that phase. I don't know how to get any additional reporting as to why the update failed.
I can't connect the device to Kies either. Again, it doesn't report the problem. Kies notices when I connect the device, then says: "Reconnect the device in Samsung Kies (PC Studio) mode.Current connection mode not supported by Kies." (sic!)
What can cause an OTA update to fail?