Bobby Lemain

(So the thread crawlers aren't confused...) I guess we just have to sit tight until someone cracks it or someone leaks the ability to apply our own OEM Certificates to match the new Secure Firmware Flashing standard!

Is it just me or is GPU-Z not able to dump the VBIOS of a 640M LE?

What values do you need and where can they be found?

Is that the one where you use a USB drive with only the BIOS in the root directory, turn on the computer and hold down a certain hot-key to force a bios flash (usually used in case of a bad flash)? edit: if so, when tried one at a time: fn + B, windows + B, Ctrl + Alt + Home, End, fn + Esc, windows + Esc, fn + R, windows + R while pressing Assist (then I tried again with the normal power button) didn't work with a flashdrive formatted as FAT that had: AA.ROM BB.ROM AAHW.ROM BBHW.ROM AA.FD BB.FD AAHW.FD BBHW.FD AA.BIN BB.BIN AAHW.BIN BBHW.BIN BIOS files in the root directory and nothing else on it (with each file being the same stock R0081C8 file from Sony Asia) What's the second option? Unless you know the propper hot key for a Sony. When I looked through some threads everyone that had a Vaio ended up sending their bricked laptops in to get the motherboard replaced while Acer, HP and the other lucky people pressed a hot key and force-flashed their BIOS edit 2: Page 5 states that all BIOS updates must be signed, protected, and the protection cannot be bypassed. Page 8 shows a certificate block in the header. I'm guessing whatever tool Amal used to mod the BIOS may have accidentally touched this Capsule Header which raised a flag stopping the modded BIOS from being flashed.

InsydeFlash is the application provided by Sony, but modded BIOS files don't want to flash even with Secure Boot disabled. Link to new BIOS: here <-can be flashed using various InsydeFlash versions but not flashit through DOS nor flashrom through linux Link to modded, saved, unmodded, and saved BIOS: here <- cannot be flashed (This was made to see if a file that did the same thing but had a different checksum would flash) Link to modded 900 Core 900 Memory Clocks BIOS: here <- cannot be flashed All modded files were done by Amal of notebookreview. edit: Also, my I ask what you use to edit the BIOS roms? Is it hex editing, a utility, or are you unpacking the roms somehow then using a utility?

So... Since I can't send private messages and have some findings that might as well be public: Over at notebookreview, Amal has been trying to mod the new R0081C8 BIOS. All Windows 8 SVS lapops now come with R0080C8 which isn't compatible with the old BIOS mod since the hardware is now different. The R0081C8 BIOS that was released on Sony's Asia Pacific site flashed successfully on a US SVS151290X and Amal went forward with trying to do the same GPU clock mod on the R0081C8. However, the flash resulted in a "Update Firmware Failed." error. I then had Amal make a modded, saved, "unmodded," and saved version of the BIOS to try flashing. This didn't flash either resulting in the same error. I then tried flashing the stock R0081C8 bios using three versions of flash-it: 1.3u, 1.5t, and 2.0b all resulting in something similar to this: This seems to be because the versions of flash-it are all from 2011 or earlier (plus made for other BIOS files... all of which were under 800,000 bytes...). I also tried flashing the two modded BIOS files using various versions of InsydeFlash.exe but only the stock file wanted to flash. Perhaps Sony implemented a way to check BIOS check-sums or somehow signs each BIOS file? svl7?