Quote:Is there an update newer than the first update they did?
There it is:
http://support.lenovo.com/de/de/products...s/DS100450
Comes with a different flash program if i am not mistaken.
Now to everyone who wants to remove the chip from the mainboard:
Don't do it if you do not have the right equipment! I didn't and i damaged my motherboard (getting it to work again required really difficult soldering)
At first i tried to desolder the chip with industry grade flux and thin desoldering wick. I removed a lot of tin but the chip didn't came of and because of its small size it isn't possible to heat up one side of it get that of and then the other side (this would even apply force to the pads, which are incredibly damageable).
So if you want to cleanly desolder it you need someone with experience and a heatgun.
The other way is to cut of the legs, but for that you need very tiny pliers and be very cautious not to apply force to the pads. After that you could desolder pad by pad.
In the second case you need a new chip. You can find these on ebay. the only important thing is that they are W25Q64FVSS*, it doesn't matter if they are IG IQ or IF. My original chip was IQ and i bought IG. If someone wants to experiment a lot with UEFI Modding it may be good to buy a 8 Pin PDIP socket and the W25q64FVDA* . One could solder wires to the old pads and have the socket with the chip anywhere in the laptop. This way you could even exchange it without unscrewing the motherboard. (Heres the datasheet:
https://www.winbond.com/NR/rdonlyres/05A...5Q64FV.pdf)
Before connecting your programmer be sure that you connected the right pins to the right places. Don't trust the picture in the flashing software (I did and my first chip nearly burnt) look for a little picture on your hardware as it will show the right way to connect.
Then dump your chips bios (Its important to dump your own! it holds your windows8 license key for example!)
Do the steps as rehabman suggested in
Post #51 to patch the bios.bin you just dumped.
Then flash the patched bios to a new chip and solder this one to the board.
If you damaged a pad you can take a magnifying glass and follow the wires on the pcb to find an alternative spot to connect and solder a enameled copper wire to it (i took 0,2mm diameter). As you can see the soldering does not look very good. I don't have a soldering iron with such a thin tip and not so thin tin.
And this is what my motherboard looks like now:
Hopefully Lenovo never releases an killer UEFI update that would make me need to update the bios.