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

@xu17913 - What is BIOS chip ID, if you're planning to use flash programmer? So I can tell you best software to read/write to the chip. Look with your eyes, do not rely on software to tell you this.
Flash programmer may not be needed though, so if you want to try without it, please do the following - Disable secure boot, remove any BIOS password, disable TPM/Encryption and then >>
Download the following package, and run the command below from each versions folder that directly contains it's exe.
Once done, copy the entire folder somewhere, delete everything but any created vars.txt and then repackage this and send to me, this way all created vars.txt remain in place in the folders of the version that created them.
http://s000.tinyupload.com/index.php?fil...212104496994806

H2OUVE.exe -gv vars.txt

Although, one member already tried this and it didn't work, we can try again if you want, see it maybe it was just something he was doing wrong?
In the end, we didn't think so, and concluded he needed flash programmer. So, if you want to avoid going through trying without flash programmer, go ahead and open system up now and give me the BIOS ID so we can dump and edit

Hi,
@Lost_N_BIOS

Also，I will try to flash w/o Flash programmer.
So I Disable secure boot, remove any BIOS password, and >H2OUVE.exe -gv vars.txt

Here is my var.txt (120k) in attached.

Thanks

@xu17913 - OK, we'll try. Then if it fails, and you can't flash mod BIOS region, you'll have to dump BIOS with programmer and send to me.
Here is unlocked vars - http://s000.tinyupload.com/index.php?fil...315471116423656

Drop this in 100.00.16.11 folder, and flash with following command >> H2OUVE.exe -sv varsM.txt
There will be list of success/fail, this is normal, reboot once done and then do step #1 from below (NOT #2 yet), and ignore stuff about flashing stock BIOS first, this is copy/paste, just do directly step #1 after flashing in the mod vars and send to me.

Hi,
@Lost_N_BIOS

I have done with ‘Dump Bios region w/fpt’ step #1 > fptw64.exe -bios -d biosreg.bin
Then I get the biosreg.bin(12mb) in attached.


Thank you.

@xu17913 - You're welcome! Did you flash in varsm above first? If yes, OK
Here is unlocked BIOS, flash it back via the following command >> FPTw.exe -bios -f biosregm.bin
If you get error 167, then flash programmer is required
http://s000.tinyupload.com/index.php?fil...721077109065591

*** 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 xu17913 at Win-RAID.com forum, DO NOT USE THIS BIOS!!
If you do, and you are not xu17913, then you will loose your serial, UUID, OG NVRAM, and possibly LAN MAC ID as well.
You have been warned!!!

Hi,
@Lost_N_BIOS

I have got the unlocked BIOS, Thanks for your quick reply.
Then I flash it back via the following command >> FPTw64.exe -bios -f biosregm.bin
BUT…..I still get error 167….



Maybe flash programmer CH341a is what I have to need….

So I have backuped the complete BIOS,it is 16MB size.
Could you please help me unlocking BIOS Unlock advanced menu on my laptop？ and I will flash it back via CH341a.
MY BIOS ID：MX25L12875F 0xC22018 size：16384kb（131072Kb）

Here is my Complete Bios Backup(pt515bios16MB,2parts cause the limited sizes) in attached.


Thanks

@xu17913 - Yes, as I noted in post #6, as mentioned also at post #2, flash programmer may be required for this model.
You are second user to attempt normal bypass method, so you confirm it >> Flash programmer required to flash in mod BIOS on this model.

Please confirm with your eyes, what the Chip ID is, do not rely on software, is it really MX25L12875F? If yes, what software did you use to dump above BIOS?
Please upload that to tinyupload.com or uploadfiles.io, I can't deal with split files attached here it's a mess. Or actually, don't, unless it's created with one of the below software / versions, if chip ID is actually MX25L12873F
If the BIOS Chip is actually 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 from package below, and make a new dump
http://s000.tinyupload.com/index.php?fil...213094641136166

Hi,
@Lost_N_BIOS

Thanks a lot for your remind.
I will open the laptop ，take a pic and confirm the BIOS model carefully.
Then I will backup bios via ch341a and send it to U again.

Have a good day!

@xu17913 - You're welcome, and I didn't mean for that to sound rude if it did, only meant to say I expected that would probably happen and we'd need programmer.
Yes, please confirm chip ID with your own eyes and then dump with one of the methods mentioned above, even if it's actually MX25L12875F, do dump as mentioned above using one of those software/versions
Only ASProgrammer has actual MX25L12873/5 ID's, but the others work as well, just choose correct size (16MB) and type (25) for 1.31/1.40 free, or with 1.1.1.32 choose 128Mbit and MX25L12805

Hi,
@Lost_N_BIOS


I have opened my laptop and find the actual bios is MX25L12872F



The bios via flash program CH341A and ASProgrammer 1.4.1, but there is no perfect IC model when it readed .So I choose the IC MX25L12873F , read&save BIOS 16MB size.


Did I do correctly or not ?

Could you please help me unlocking BIOS advanced menu,disable FPRR&BIOS LOCK on my laptop,it will better if the soft flash support.

I will program back later.Thank you so much.

Here is the backup link：

http://s000.tinyupload.com/?file_id=09829160061298519559

@xu17913 - Thanks for checking, yes, that is correct to use 3F ID.
Not sure if I can find and remove the FPRR lock, but I will look and see if I can find. If not, it does not matter, you will program in mod BIOS unlocked anyway, so all will be done.
Sorry, I could not find

Please test this real quick, flash in this mod vars, reboot, and see if you can dump BIOS region with FPT using new name again and then test write back of BIOS region with FPT
http://s000.tinyupload.com/index.php?fil...827002054841229

If that does not work, then here is mod BIOS to program in with programmer
Erase, then blank check, then open BIOS file, then write, then verify. If using ASProgrammer, before erase hit "unprotect" icon, not drop out menu, just icon
http://s000.tinyupload.com/index.php?fil...977014571165119