Lenovo P70, (model 20ES S1RH00 6700HQ, M600 Quadro) works like a dream, when it boots, but I need to recover the BIOS or ME section, or do an ME delete, whatever will work. I have CH341a and know how to use it.
It will not even load the diagnostic tools, Win10 Install USB, Linux Mint live CD or Lenovo BIOS flash ISO on a CD-ROM. It gets to the point the OS would load and then just reboots.
I can see the BIOS settings, change them, but no OS load. I have tried 2 different good memory sticks, and it was booting until I tried the ME 184.108.40.20687 update tool for P50 P70. this is the ME version that shows in the BIOS screen now.
I got a “broken” P70 for a good deal, in very nice condition, had battery, 4k screen, even a 16gb RAM chip.
It would only boot if I manually selected the NVMe drive, never would boot automatically or with the “Windows boot manager” Sometimes would quickly display an ‘me Spi lock failure’ message, I did not capture this message, as it did not show every time and I didn’t think to video it.
Reading around I tried the latest 2.40 bios and the ME updater tool. The 2.40 Bios from Jan/2022 PC still worked, but only boot by pressing Enter/ f12 and choosing my NVMe Drive. I tried the ME update, which claims to have worked, but upon reboot no OS will load at all, not even bootable BIOS flash CD.
Edit: I took a picture of the BIOS Screen when it booted the first time, looks like I had a blank ME section, EC version of 1.17 and was on BIOS 2.24. Now am on EC 1.18, ME 220.127.116.1187 like I said above, and BIOS 2.40