Bricked Toshiba C55T-A5123 after BIOS downgrade

[parkerlreed]

I received this laptop with BIOS version 1.10. I initially tried flashing 1.50 directly but it failed with a vague error and not much else. So I then decided to go in increments. Flashed 1.30 (worked), then 1.40 (worked), then tried 1.50 again. No dice.

Looking through the options for isflashx64.efi I noticed a -MC option to bypass checks. This let is flash successfully. The weird thing is the BIOS model was the same except there was an A appended to the end. Other than that the BIOS worked perfectly and the computer booted fine. All of these BIOS downloads had my exact product number listed next to them.

This was working but I was getting a ton of ACPI errors in Linux (That I didn't remember seeing on previous BIOS versions) and me not willing to leave well enough alone decided to try and reflash 1.40. I still had the CD I burned with the BIOS on it. Loaded it up, dropped to the EFI shell, and ran

Code:

isflashx64.efi DM10S140.FD -ALL -MC

I ran with -ALL to flash everything and -MC because the BIOS model was changing back (to the version without an A)

It ran through and flashed successfully but now will not boot back up at all. The power will flash for 1 second, waits about 10 seconds, then goes steady for about 5 seconds (HDD spins up on the second flash but screen does not initialize)

I have tried formatting a USB drive as FAT16 and put the 1.50 BIOS on it as BIOS.FD and then pressing Win + B as I plug it in and turn it on (as per the Insyde recovery directions) but nothing ever happens.

So what I'm wondering is: Is there any way to recover this short of taking the laptop apart and trying to flash the chip directly? (If that is even possible)

Here's the link where I got the BIOS downloads. My laptop part number is PSCJEU-01G00Q. http://support.toshiba.com/support/model...=zd247208q

(You have to click "Drivers and updates" and then "BIOS" manually. Can't link directly to it)