I have had my 360 on LT 3.0+ for a couple months now, and was in the process of reverting the firmware back to stock to perform an XBL update, but ran into a little bit of an issue here.
I hooked up everything to my desktop, opened up jungle flasher, loaded my original dummy.bin & stock firmware 74850C, spoofed the drive and executed the erase lite-on job.
All was going well, but it appears i was a little slow power cycling the drive. I re-ran the job and the drive seemed to be in 'vendor-mode', however i was unable to write the stock firmware to the drive.
When i re-started the jungle flasher application, im getting 'No drive detected', im also unable to eject my drive.
I really hope i didn't totally fuck the drive on this.