Hello everyone,

I want modify frequency, voltage.... of my RAM and of my CPU but I need to unlock advanced menu of my bios.

-Manufacturer: Acer
-Model: AN515-54
-Bios : InsydeH20 Setup Utility Rev. 5.0
-Bios Type: UEFI
-Bios Download Link: BIOS V1.28

PS : I have a dump of my bios with CH341A Usb Mini Programmer. If I don't put the dump of my bios it's normal because as you know it contains personal information so I'll send it to you in PM.

Thank you all in advance.

@Lolow - I am not 100% certain on this unlock, only 99% sure of proper edit. Best you let Dudu2002 over at BIOS-mods.com forum do this one for you.
If you want me to try, send me your dumped BIOS.

Unlock attempt set #1 sent in PM * Edit, and resent!! Sent you edited setup module x3 first time
I think Unlock2 will get it for you, try that one first!

I have same interest, it would be great if we could adjust the memory timmings in this gaming laptop :)

@nights - Do you have flash programmer? If not, we have to see if you can flash mod BIOS without, I am not sure on this system.
Please do the following, show me what error you get at #2 and then send me your dump BIOS region (we'll make another later, if success after next step I give you after I see error)

Hi! Thanks for the help

This was the message I got after trying to flash the bios

@nights - You're welcome! Error 167 is major pain sometimes, so you may have to get flash programmer
ownload 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

Command to run >> H2OUVE.exe -gv vars.txt

There may be errors, some may not work at all etc. Once done, leave all files in place, zip back up with max compression and upload to tinyupload.com or uploadfiles.io
To make it easier if you want, you can install this registry entry and reboot, this will add Open Admin CMD Prompt to right click, so you can just right click the folder with exe inside and open CMD directly via right click - http://s000.tinyupload.com/index.php?fil...134606820377175

I did search on entire web for a modded bios for my 515-54. Thanks i found it here! can you send me?

I do have the SPI-programmer and the SOIC8 clip, if needed, i shall use =)

@Lost_N_BIOS
This is my first topic, i must say that i'm a huge fan of your work!

@bressawsk - Wow, neither @nights or @Lolow got back to me above, so I am still not sure if I can unlock this one or not!
Thank you for the kind words and support, I really appreciate it!

Do you want to try first without flash programmer, or do you want to go right to programmer?
If you want to try without programmer, do FPT stuff at post #5 and send me file from step #1, then do stuff from post #7 and send me the package pack as mentioned there
If you want to go straight to programmer, please tell me your BIOS chip ID before you dump it, so I can tell you what software/version may work best to read/write, so we know you get a good dump and can write back properly.

@Lost_N_BIOS @Lolow
I can unlock it for you , just attach your dump from SPI- programmer !!

Zitat

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@bressawsk - Wow, neither @nights or @Lolow got back to me above, so I am still not sure if I can unlock this one or not!
Thank you for the kind words and support, I really appreciate it!

Do you want to try first without flash programmer, or do you want to go right to programmer?
If you want to try without programmer, do FPT stuff at post #5 and send me file from step #1, then do stuff from post #7 and send me the package pack as mentioned there
If you want to go straight to programmer, please tell me your BIOS chip ID before you dump it, so I can tell you what software/version may work best to read/write, so we know you get a good dump and can write back properly.

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@Lost_N_BIOS
Let's try without using flash programmer first, maybe we can help other ppl with this method.

I'm attaching my bios dump in this post.

If needed, this is the bios i'm using at this moment:
V1.31 - https://global-download.acer.com/GDFiles...BC=ACER&SC=PA_3

Thanks!

@mesh17 - Thanks, for stopping in to help! I think I did already for Lolow, but in PM because he wanted his BIOS links remove here, but I am not 100% sure
I think I can unlock it as well, would you mind confirming this is correct menu unlock edit, so I know for sure Ahh, this is for BIOS 1.23, or maybe 1.28 (maybe all, I can't tell for sure which I was working on when I made out this unlock notes) - Yes, I checked 1.31 too!
A0E: 70 >> 00
A46: 38 >> 00
A7D: 75 >> EB

And yes, I think I found Lolow further edits, after unlock, so I believe above is for sure correct. I have post edit follow up edits for him, where I then updated ME FW and maybe something else too.
So I'm 99.9% sure above is correct

But, in general, how awesome are you at unlocking Insyde BIOS?
Some I just cannot get no matter how long I look at them, it would be great if you can do all/most, then any time I am stuck I can try to remember to tag you and as you to help!

@bressawsk - Yes, I agree, it would be great to test it all out and see if possible without programmer, so it can help others.
What error did you get at step #2 of the FPT spoiler? And where is your vars dumps, from stuff at post #7? << Need both of these things to see about moving forward without programmer

@Lost_N_BIOS

Sorry about that, forgot to attach vars. Here it is.

I got no errors at all on FPT, am i missing something?

@bressawsk - Thanks. No, if you get no errors in step #2 of the FPT spoiler that's great, it means you don't have to do anything here with vars and everything is already unlocked.
I doubt this is true though, unless by some magic your BIOS is already unlocked? Are you 100% sure you did FPT Spoiler step #2 and no errors? >> FPTw.exe -bios -f biosreg.bin
I just edited the spoiler above, to make it clear that there is step #1 and step #2, but #2 already had bold red message "This is important step, don't forget"

@Lost_N_BIOS

@Edit
In fact there are errors

Zitat

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Error 167: Protected Range Registers are currently set by BIOS, preventing flash access.
Please contact the target system BIOS vendor for an option to disable
Protected Range Registers.

FPT Operation Failed.

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