[Galaxy Tab Q&A, Help & Troubleshooting] willing_to_cooperate:
Hello fellow XDA'ers,

With the release of a stable CM9 candidate for the SGH-T849, I wanted to move away from the stock firmware and use a open-source/less-bloatware/pixiedust/unicornmagic firmware. Just like the fat kid squeezing his way into a candy emporium, I ran at the chance to install CM9.

I loaded the page that I had bookmarked for this very purpose:

*I can't post URLs since I am new to XDA, but it is an internal address*

wiki[dot]cyanogenmod[dot]com/wiki/Samsung_Galaxy_Tab_(GSM):_Full_Update_Guide

I followed the guide for Windows machines. I did not perform any pre-flashing backups, as all data was already backed-up. Furthermore, I'd like to fully format the internal and external SD cards for use with the tablet.

I installed all necessary drivers, and installed Technomancer's ClockworkMod onto the tablet through Heimdall (via download mode). The flash was deemed a success in the command prompt, and the tablet was rebooted by the computer. The blue bar zipped across the tab to show transfer of zImage.

However, after reboot, the tablet is stuck at the T-Mobile loading screen. I force shut down the device by holding the power button, and after shutdown unplug it from the computer.

I turn the tablet back on, and I get the same T-Mobile loading screen. By now, the tablet is looking at me like I'm stupid, which it's fully right in doing. :( I turn off the tablet by holding the power button, and the tablet turns off.

I try to see the battery level when plugged in via USB-AC power, but I am greeted with a battery icon that has a loading logo.

Before starting this adventure, I made sure the tablet was fully charged.

I can still enter into download mode when connected to the computer. I have only tried Heimdall, and have yet to read up on ODIN.

Relevant device information:

The device was rooted (SuperUser/BusyBox installed)

Model Number: SGH-T849

Firmware Version: 2.2

Baseband version: T849UVJJB

Kernel Version: 2.6.32.9

may.park@SEP-08 #1

Build Number: FROYO.UVJJB

This is the first time that I have ever tried to flash a firmware onto an Android device. I have successfully flashed my two Nokia N8's with firmwares and have dealt with iPod touch 2Gs jailbreaks, so I am not *completely* computer incompetent. :silly:

I have tried to find the original firmware for the SGH-T849, but all the download links that I have tried to find are either dead or removed. Since only the zImage was replaced, I was hoping to simply re-flash with the factory zImage. Since I can't find the original factory firmware, I have yet to try this option.

I'm not sure what bricked state the tab is in. I'd like to hope it's soft-bricked, but that's probably not the case.

If I need to perform diagnostics on the device (or if any extra informaiton needs to be provided), I can edit this original posting with updated information. I have easy access to a Windows machine, but I may be able to get access to Ubuntu via disk image on another computer.

I don't want to be the jerk who states that "I solved it!" and leaves everyone in the dust: I'll post everything and anything that happens with this problem for future reference.

Other "stuck at loading screen posts" seem very similar to this, but solutions seem to be very divergent. Therefore, I am hoping for some clarity. Considering that the wiki post was designed for the SGH-T849, I think this thread should act as an appendix to the above wiki page for flashing this device.

Thanks,

willing_to_cooperate