@johnson2008 - http://s000.tinyupload.com/index.php?fil...594382274551788
Flash it back via >> FPTw.exe -bios -f filename.bin

@Lost_N_BIOS

1.FPTw.exe -bios -f filename.bin still 167 error. Maybe i need flash programmer.


2.Try again modVar.txt：

after disable secure boot, remove BIOS password.
Execute the program "H2OUVE.exe -gv var.txt" and then Exec "H2OUVE.exe -sv var.txt" (the same just dump var.txt )
show [052] ""MemoryOverwriteRequestControlLock"" Format Error !

but Execute "H2OUVE.exe -sv varM.txt (original unlock varM)" is OK.

the Log:

D:\Document\Downloads\H20UVE\H20UVE_100.00.16.08>H2OUVE.exe -gv var-f12-noserureboot.txt
Now parsing Variable Information.
Succeed to get bios data.
Complete parsing Variable Information!!!
Saving Variable Information to file: var-f12-noserureboot.txt

D:\Document\Downloads\H20UVE\H20UVE_100.00.16.08>H2OUVE.exe -sv var-f12-noserureboot.txt
Now Parsing File From var-f12-noserureboot.txt.
[052] ""MemoryOverwriteRequestControlLock""
Format Error !

Succeed to read var-f12-noserureboot.txt file.
Variable Index[001]: Set failed!
Variable Index[002]: Set failed!
Variable Index[003]: Set failed!
Variable Index[004]: Set failed!
...
...
Variable Index[005]: Set successfully!
Variable Index[006]: Set failed!
Variable Index[04e]: Set failed!
Variable Index[04f]: Set failed!
Variable Index[050]: Set successfully!
Variable Index[051]: Set successfully!

If you flash back in ANY vars I've sent you before, password and previous BIOS settings you just changed will be put back, so don't do that!
Now you need to redo all again. Slow down, stop doing things no one said to do, or you're going to brick the system.

Yes, it's possible you need flash programmer, sometimes this is the case, and it's looking that way here, sorry
If you need links to the items needed let me know and I will link you to some examples (you need CH341A + SCOI8 test clip with cable)

@Lost_N_BIOS

Thank you very much

The flash programmer is difficult to operate ，I will go to Google to learn about it。

Thanks for you help again .

@johnson2008 - You're welcome, sorry it's being such a hassle!
So you have programmer already? It's easy Here is guide - [GUIDE] Flash BIOS with CH341A programmer
Here is software package - http://s000.tinyupload.com/index.php?fil...213094641136166

What is your BIOS Chip ID, then I can maybe tell you best known working software version for your chip ID

Hi,
@Lost_N_BIOS

I have got my Acer Triton Predator PT515-51 (i7 9750H +2070mxq) bios 16MB size by Flash Programming Tool v12 win64 , And the I will reflash the bios with flash program CH341a
So Could you please help me unlocking BIOS Unlock advanced menu on my laptop？

Thank you so much .


My Predator PT515-51 laptop offical informations as following:

①Model: Predator PT515-51
url: https://www.acer.com/ac/en/US/content/su...roduct/7905?b=1

②BIOS v1.05
url:https://global-download.acer.com/GDFiles...BC=ACER&SC=PA_6

Hi, @Lost_N_BIOS
i've see every things u done ..
so i bought ch341a flash programmer
i have a predator helios 500 PH517-51
PH517-51-72NU
https://www.acer.com/ac/en/US/content/su...pn=NH.Q3NAA.003
bios version 1.16
INsyde20 V5 just like another acer predators laptop

please if u can full unlock my bios advanced menus Overclock Feature & ram twaeking

here is my bios dump from flashrom 1.2-5 using ubuntu
https://drive.google.com/file/d/1XwvOxMI...iew?usp=sharing

thanks.

*
region US/Canada
My ME FW v12.0.0.1067
my chip bios GD25B127D

since yesterday i left my laptop disassembled until now :(
can anyone help me to unlock my bios?

@Lost_N_BIOS

BIOS Chip ID is : MX25L12875F

I just bought 341A and sop8 .

Is it CH341A programmer flash the 12Mb bios-nopasswd-newM.bin (The last unlocked bios)。

or need dump new 16Mb bios to unlock ?

Thanks.

@Lost_N_BIOS Oh bios unlocker god please aid me in this time, I would love to uncage this beast laptop. bios 1.11

@xu17913 - Answered you in your model specific thread.

@tonyG3 - Here you go - http://s000.tinyupload.com/index.php?fil...652506353439713

*** WARNING - To ANYONE with laptop and unlocked BIOS!!!! ***
DO NOT try to enable this graphics card or disable that card, switch cards etc. Otherwise you will end up with no display output (ie black screen) and no way to recover except by blind flash or with flash programmer.
You can change graphics related settings, like changing memory sizes, or core speeds etc, just don't try to disable one card or change which is main etc.
Additionally, be very careful when trying to undervolt CPU, you can leave BIOS unbootable due to CPU voltage too low (Sometimes even 0.05 is too much)

*** WARNING *** - This BIOS is user specific! If you are not user tonyG3 at Win-RAID.com forum, DO NOT USE THIS BIOS!!
If you do, and you are not tonyG3, then you will loose your serial, UUID, OG NVRAM, and possibly LAN MAC ID as well.
You have been warned!!!

@johnson2008 - For MX25L12873F use CH341A v1.31(1.4) (CH341AFree) (This is the name of the folder), ASProgrammer 1.4 or 1.41, or CH341A v1.1.1.32
Software - http://s000.tinyupload.com/index.php?fil...213094641136166
Guide - [GUIDE] Flash BIOS with CH341A programmer

No, you need to dump current BIOS with programmer and send to me, then I edit, then you program back. Be sure all the things are disabled as we did previously, before you dump with programmer.

@heyheywill - What is your model, and what BIOS version are you using?

@Lost_N_BIOS PH315-52 Bios 1.11.

@Lost_N_BIOS thanks man, i missed the true ME FW Version it "v12.0.0.1069" not "v12.0.0.1067"
is there a problem or just flashing?

@tonyG3 - ME version does not matter for this, only for you to know which ME system tools package to get and for that only Major Version matters (V11, V12 etc)
You're good to go, flash away

@heyheywill - Here is unlocked vars, flash it back using this command from same version that created it (100.00.16.08) >> H2OUVE.exe -sv varsM.txt
http://s000.tinyupload.com/index.php?fil...959386916767578

Then, do step #1 from below and send me your biosreg.bin

http://s000.tinyupload.com/index.php?fil...413007832666201 <--- biosreg
No errors