well try downgrading to the 2.5.1 update. follow the same steps you did to try and update to 2.7 fw (even though you didnt successfully update) try downgrading to 2.5.1...... when you received your dongle is it one of the new ones with a sticker on the side to prevent tampering??? heres a quick question did you ever install a cfw prior to this TB CFW install and if you did , did you use a version spoofer? I found as long as i was using a version spoofer i could not properly update the to TB CFW and as long as TB was plugged into usb port it would not boot console. solution was to unplug TB from ps3 boot console, uninstall the version spoofer then install TB Cfw .