[REQUEST] Lenovo Yoga 2.11 whitelist removal

[john-wingnut]

Ok friend,
The best thing is to get the Tools to get free (SPI Programmer + Clip) but
We can try before this trick :

0x21067    Setting: LPSS SPI Support, Variable: 0x163
0x2108D     Option: Disabled, Value: 0x0
0x210A9     Option: Enabled, Value: 0x1
0x210C5    End of Options

0x2179D Setting: BIOS Read/Write Protection, Variable: 0x1FC
0x217C3 Option: Enabled, Value: 0x1
0x217DF Option: Disabled, Value: 0x0 (default)
0x217FB End of Options

0x21A25     Setting: TXE HMRFPO , Variable: 0x170
0x21A4B      Option: Disabled, Value: 0x0 (default)
0x21A67      Option: Enabled, Value: 0x1
0x21A83     End of Options


With the above, how would one amend these in a hex editor?

[BDMaster]

It's not to apply on Bios file but just to set into Hi-Mem Protected (NVRAM Emulation) so
only writing by FlaseClock Method is possible !
Regards

P.S. another user on Lenovo Yoga 2 Pro has done same and worked so i will ask to him !

[john-wingnut]

It's not to apply on Bios file but just to set into Hi-Mem Protected (NVRAM Emulation) so
only writing by FlaseClock Method is possible !
Regards

P.S. another user on Lenovo Yoga 2 Pro has done same and worked so i will ask to him !

Yoga Pro 2 has different bios though!!

I have tried GRUB and GRUB 2 and it boots to efi shell no problem.

It just will not boot that inside bios mod tool file, just hangs on black screen.

[BDMaster]

Ok friend,
then if You tried Sleep Bug and Downgarding I can say to get the Tools
SPI Programmer and Clip to get all control on this Firmware !
Look here :

https://www.bios-mods.com/forum/Thread-R...5#pid74575

SPI PGM CH341A + Clip cheaper $.30,00 and We will make this job togheter !
Let me know
Regards

[john-wingnut]

Ok friend,
then if You tried Sleep Bug and Downgarding I can say to get the Tools
SPI Programmer and Clip to get all control on this Firmware !
Look here :

https://www.bios-mods.com/forum/Thread-R...5#pid74575

SPI PGM CH341A + Clip cheaper $.30,00 and We will make this job togheter !
Let me know
Regards

What is sleep bug?

Why would I need to downgrade the bios? I thought using SPI programme you extract from eeprom, modify and then flash modified bios?

I have searched for 92cn23ww / 92cn26ww, as these are the earlier bios versions for the yoga 2 11

Regards
John

[BDMaster]

Ok if You get the Tools then upload your Firmware Full Dump here and I will modify !
Let me know
Regards

P.S. I haven't got your Firmware Dump and I have only a Bios Backup !

[john-wingnut]

Ok if You get the Tools then upload your Firmware Full Dump here and I will modify !
Let me know
Regards

P.S. I haven't got your Firmware Dump and I have only a Bios Backup !

I have ordered the tools.

I assume I will have to use the tools to provide a dump file for you?

[BDMaster]

Yes perfect !
Let me know just You get the tools to avoid to destroy Code into your Eeprom Chip as
We have to read before doing anything !
Regards

[john-wingnut]

Yes perfect !
Let me know just You get the tools to avoid to destroy Code into your Eeprom Chip as
We have to read before doing anything !
Regards

Hey

I have my CH341A programmer and SOIC8 cable.

Laptop has been stripped down and I have located the BIOS chip

What do I need to do now then / how do I use this thing? Assuming I plug programmer into another laptop, then hook up the cable to the programmer and then to the BIOS chip?

Thanks

[BDMaster]

Just read the FIrmware from the eeprom Chip and upload It here !
Let me know
Regards