I hope I am posting this into the right board, if not I would appreciate any help I can get in directing me to the correct place to post my question. There are so many message boards and so much information, I wouldn't know where to begin to look for an answer to my questions. Basically, I have a 7" Galaxy Tab model SCH-1800, made for Verizon. I am basically lost as to how to correct an issue I have. This tablet, as an older model, was beginning to become slightly slow and clunky, so I reset it to its original factory settings. This did little to alleviate the problem, so I allowed a friend of mine to attempt to upgrade the OS to Android 4.0. In his "attempt" he created quite a glitch and he basically rendered the tablet unusable. The tablet will do nothing but present an error screen, which is shown in the attached photo. I have attempted to reinstall the OS using Odin software, but to no avail. The tablet will not turn on and off, and it will not open in either downloader or bootloader modes. If anyone can lead me into the right direction in terms of correcting the issue, or of they can direct me to the proper board, I would be most appreciative. Thank you.