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[REQUEST] Lenovo Z51-70 (C2CNxxWW) BIOS Unlock
#11
Your Eeprom Chip is Write Protected =
Error 280: Failed to disable write protection for the BIOS space!
Only using the Tools (SPI PGM + Clip) is possible to make this job !
Regards

[size=undefined]Your Brain [/size]. . . . It's the best tool U can use ! Wink
[size=undefined]Don't FLASH the Bios Mod if You get a Size Alert, You risk a Brick !!! [/size]
Donate to me for my work, click here BDM
find
quote
#12
Oh! That's sad. So the uefi shell method to modify a variable would also fail due to this reason, right?
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#13
Hi mate,
Look into this EFI IFR file and find the Variable to modify :

http://rghost.net/private/8vKznLLgX/9cdc...6d1e90b771

Then Look into FalseClock method :

https://www.bios-mods.com/forum/Thread-R...-EFI-shell

Let me know
Regards

[size=undefined]Your Brain [/size]. . . . It's the best tool U can use ! Wink
[size=undefined]Don't FLASH the Bios Mod if You get a Size Alert, You risk a Brick !!! [/size]
Donate to me for my work, click here BDM
find
quote
#14
(12-29-2015, 11:38 AM)BDMaster Wrote: Hi mate,
Look into this EFI IFR file and find the Variable to modify :

http://rghost.net/private/8vKznLLgX/9cdc...6d1e90b771

Then Look into FalseClock method :

https://www.bios-mods.com/forum/Thread-R...-EFI-shell

Let me know
Regards
Hey there!
This is the form set for the advanced menu.

Code:
0x51B88 Form Set: Advanced {0E A7 F4 27 4A A0 00 DF 42 4D B5 52 39 51 13 02 11 3D 82 01 2D 00 01 3E 45 85 9F 03 2F 89 49 AD 3B 4A 84 07 91 AF 3A}
0x51BAF Guid: 0F0B1735-87A0-4193-B266-538C38AF48CE {5F 15 35 17 0B 0F A0 87 93 41 B2 66 53 8C 38 AF 48 CE 03 01 00}
0x51BC4 Guid: 0F0B1735-87A0-4193-B266-538C38AF48CE {5F 15 35 17 0B 0F A0 87 93 41 B2 66 53 8C 38 AF 48 CE 04 05 00}
0x51BD9 Default Store: en-US 0x0 {5C 06 00 00 00 00}
0x51BDF Default Store: en-US 0x1 {5C 06 00 00 01 00}
0x51BE5 Var Store: 0x1234[1400] (SystemConfig) {24 23 F4 27 4A A0 00 DF 42 4D B5 52 39 51 13 02 11 3D 34 12 78 05 53 79 73 74 65 6D 43 6F 6E 66 69 67 00}
0x51C08 Var Store: 0x1235[17] (PasswordConfig) {24 25 F6 EE 2D F7 EF 13 58 49 B0 27 0E 45 CE 7F A4 5E 35 12 11 00 50 61 73 73 77 6F 72 64 43 6F 6E 66 69 67 00}
0x51C2D Var Store Name Value: 0x1 {25 14 01 00 F6 EE 2D F7 EF 13 58 49 B0 27 0E 45 CE 7F A4 5E}
0x51C41 Var Store: 0x7777[16] (CrConfig) {24 1F 9F 7B C0 7E E3 66 D4 43 9B 52 38 FB B4 63 90 CC 77 77 10 00 43 72 43 6F 6E 66 69 67 00}
0x51C60 Form: Advanced, Form ID: 0x1 {01 86 01 00 82 01}
0x51C66 Subtitle: {02 87 2D 00 00 00 00}
0x51C6D End {29 02}
0x51C6F Ref: Boot Configuration, Variable: 0xFFFF {0F 0F 84 01 85 01 01 00 00 00 FF FF 00 21 00}
0x51C7E Ref: Peripheral Configuration, Variable: 0xFFFF {0F 0F 86 01 87 01 02 00 00 00 FF FF 00 22 00}
0x51C8D Ref: SATA Configuration, Variable: 0xFFFF {0F 0F 88 01 89 01 03 00 00 00 FF FF 00 23 00}
0x51C9C Ref: Thermal Configuration, Variable: 0xFFFF {0F 0F A0 04 A1 04 04 00 00 00 FF FF 00 24 00}
0x51CAB Ref: Video Configuration, Variable: 0xFFFF {0F 0F 8A 01 8B 01 05 00 00 00 FF FF 00 25 00}
0x51CBA Ref: USB Configuration, Variable: 0xFFFF {0F 0F 8C 01 8D 01 06 00 00 00 FF FF 00 26 00}
0x51CC9 Ref: Chipset Configuration, Variable: 0xFFFF {0F 0F 8E 01 8F 01 07 00 00 00 FF FF 00 27 00}
0x51CD8 Ref: ACPI Table/Features Control, Variable: 0xFFFF {0F 0F 90 01 91 01 08 00 00 00 FF FF 00 28 00}
0x51CE7 Ref: PCI Express Configuration, Variable: 0xFFFF {0F 0F 52 03 53 03 09 00 00 00 FF FF 00 30 00}
0x51CF6 Ref: Overclocking Performance Menu, Variable: 0xFFFF {0F 0F B8 04 B9 04 00 05 00 00 FF FF 04 37 00}
0x51D05 Ref: Extended ICC, Variable: 0xFFFF {0F 0F 66 05 67 05 0A 00 00 00 FF FF 00 C0 1C}
0x51D14 Ref: DPTF Configuration, Variable: 0xFFFF {0F 0F 24 06 25 06 0B 00 00 00 FF FF 00 10 36}
0x51D23 Disable If: {1E 82}
0x51D25 Variable 0x2A1 equals 0x0 {12 06 A1 02 00 00}
0x51D2B Ref: Serial IO Configuration, Variable: 0xFFFF {0F 0F 18 07 19 07 0C 00 00 00 FF FF 00 00 37}
0x51D3A Ref: , Variable: 0xFFFF {0F 0F 3B 07 3C 07 0D 00 00 00 FF FF 00 10 37}
0x51D49 End If {29 02}
0x51D4B Ref: ISCT Configuration, Variable: 0xFFFF {0F 0F 14 06 15 06 0E 00 00 00 FF FF 00 00 1E}
0x51D5A Guid: 0F0B1735-87A0-4193-B266-538C38AF48CE {5F 15 35 17 0B 0F A0 87 93 41 B2 66 53 8C 38 AF 48 CE 00 04 1D}
0x51D6F Guid: 0F0B1735-87A0-4193-B266-538C38AF48CE {5F 15 35 17 0B 0F A0 87 93 41 B2 66 53 8C 38 AF 48 CE 00 05 1D}
0x51D84 End Form {29 02}


See the disabled if case at the end?
Code:
Disable If: {1E 82}
0x51D25 Variable 0x2A1 equals 0x0 {12 06 A1 02 00 00}
0x51D2B Ref: Serial IO Configuration, Variable: 0xFFFF {0F 0F 18 07 19 07 0C 00 00 00 FF FF 00 00 37}
0x51D3A Ref: , Variable: 0xFFFF {0F 0F 3B 07 3C 07 0D 00 00 00 FF FF 00 10 37}
0x51D49 End If {29 02}
So I basically have to change 0x2A1 to 0x1? But my BIOS area is write protected according to Backup_tools12.
How else can I do this?
UPDATE: Using the efi shell from falseclock's method, the shell never boots from usb, stuck at black screen, so I tried with grub uefi shell, and doing
setup_var 0x2A1 0x01 gives me
offset 0x2A1 is: 0x00
Setting offset 0x2a1 to 0x01
error: can't set variable using efi (error: 0x000000000000001a)

Any idea? Sad
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#15
You can only change some Variable Value and It's not Panacea for all issues !
The solution are the Tools (SPI PGM + Clip) but I just said !
Let me know which variable are You interested and I will say how to !
About Black Screen many UEFI Bios are going to stop this working as the developers
are looking us to learn how lock better their wrongs Wink
Regards

[size=undefined]Your Brain [/size]. . . . It's the best tool U can use ! Wink
[size=undefined]Don't FLASH the Bios Mod if You get a Size Alert, You risk a Brick !!! [/size]
Donate to me for my work, click here BDM
find
quote
#16
I don't want to use the tools to program the bios with hardware already. Once this laptop is a bit older, maybe then.

The variable 0x2a1 is the one that seems to determine the state of the "Advanced" menu tab.
Can it not be patched in the original lenovo's bios file and then installed using their own installer?
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#17
i just said actually more than usual is disabled into UEFI and Falseclok
not Always is working !
Only by the Tools can be done some modifies more than UEFI has RSA signed
Bios and Eeprom Chip is Write Protected so We can use only few tools to make
these jobs !
I ma sorry Sad
Regards

[size=undefined]Your Brain [/size]. . . . It's the best tool U can use ! Wink
[size=undefined]Don't FLASH the Bios Mod if You get a Size Alert, You risk a Brick !!! [/size]
Donate to me for my work, click here BDM
find
quote
#18
Hmm. Okay. Thank you for your help anyway!
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#19
I want to change my default gpu intel hd 5500 to Amd R9 m375
And its not possible with Factory bios
So please unlock advance menu for Lenovo z51-70
Here is bios Link Of Bios V 2 ----->http://support.lenovo.com/in/en/products/laptops-and-netbooks/lenovo-z-series-laptops/z51-70/downloads/DS102767
and version 1 is attached below

Please try
I will donate if anyone get success


Attached Files
.rar   c2cn18ww.rar (Size: 4.77 MB / Downloads: 32)
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#20
Hello there,

I'm desperately trying to install OS X on my Lenovo Z51-70 since few months. I started the whole thing back again and I managed to sucessfuly install it, but since OSX uses a particular amount of DVMT stolen memory for Broadwell graphics I have to set it up in UEFI to that demanded value to get graphics to work, otherwise it's just a useless toy because it shows up 7MB VRAM.

But, to the point.

I have NO CLUE how I did this, but this happens from time to time, and I mean that if the computer is on, going through many sleep cycles and so on, or is having USB sticks in certain ports, and then when I get to the UEFI i can see Advanced tabs and all the hidden options until a proper shutdown or reboot. After a shutdown or reboot everything goes back to the original state and Advanced tab disappears. What is happening  out there? Does anyone know why does it happen and how to make it happen? Becuase I literally have no idea what I'm doing everytime it shows up.

Best regards,
Christopher
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