Yes, I noticed your edit once I posted my reply OK, I will check later for you, I have to run for now anyway. Hopefully some way will dump AND write OK. But keep in mind, read OK does not always = write OK
You can edit BIOS region any way you want and write like we've been doing now, no need for programmer unless you brick it
Be careful though, so you don't brick it!


*** 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)

you mean i can not write to this chip ?

do you know where i can buy thoes chip i serached and asked a lot of pepole none of them answerd

buying and testing is the best way

EDIT* how this guy managed to flash with programmer we have the exact same bios [Request] Unlocking the advanced and overclocking menu ACER NITRO 7- AN715-51 #11


EDIT* i also saw this in tl866ii plus programmer user guide

Many chips have a chip inside the Identification (ID), the content is generally composed
of two or more bytes, the first byte is usually the manufacturer code (Manufacture ID),
followed by the chip type or chip capacity. Different chip, ID will be different, the
function of this option is to prevent incorrect chip into. This option checks the chip
ID before reading or writing to the chip. If it continues correctly, this function is
optional. Operation will be aborted if the ID error. The default option is enable .
Similar chips not supported in the list of the chip, Their programming method may be same ,
you can choose other manufacturers IC with the same capacity of the chip for burning.
Because the ID will be different, before burning, cancel the ID check
For a very small part of the microcontroller, ID can not be read after Encrypting the chip .
At this time, the ID check should be canceled in the main interface, otherwise, the ID
check is incorrect.

this person has the exact same laptops as me and the same tools he managed to do it i asked him i hope he repliy https://www.bios-mods.com/forum/Thread-A...63481#pid163481

@Lost_N_BIOS my friend, you are a BIOS god.

Thanks for the unlock!!! I now have second advanced menu with all the tinkerables. May you have good luck in all your endeavours.

@Saeed Haidar - No, only you said you couldn't write to that chip, I didn't? Then I gave you link to info I previously posted for someone with CH341A and that BIOS chip ID who wrote with programmer, that may help, if you continued to run into problems.
What I just mentioned about dumping and then DO NOT WRITE until I check, that was simply precaution, because if you dump chip and it's not correct then try to write in same manner (same software/version) it may fail too.
You do not need to use programmer though, as I've mentioned, you're all set to go without it for now. But, you can take backup with it so we can check if OK, and so you have backup in case ever needed, and so you know which software/version works (if any)
Yes, from that thread, it looks like colibri software + ID-EN25Q128 read and write to your chip OK This software is in the package I linked to you before, here is link again in case you missed it - http://s000.tinyupload.com/index.php?fil...695330485827902
This only applies to using CH341A, does not apply/can't be used with tl866ii

@coolgeevee - Thank you
And you're welcome too! Please be careful in there

@Lost_N_BIOS now that I have these unlocked, can you help me with something? How do I find out which is the fastest memory I can run on this laptop? Here's what I know up till now:

The processor is i7-9750H which on intel's page says supports 2666MHz. does that mean it is the max it will support ever or that it is the stock max but I can try pushing to the memory's limit using XMP (say if I upgraded to a ddr4-3200 setup)?

@Lost_N_BIOS

Sent you a couple PM's and sent over my VARs file. Hoping you can help me unlock my Acer Triton 500 BIOS with this method. Thanks!

my cheap 2666 kit support 3500 mhz intel specs are not the max the northbridge QPI can handle

Hallo sorry i know it has been a long time like less then month looool any way i hope you are doing well i tried like more then thounsed time with my (old clip) so i bought a new clip lets say a better one i was able to read from the chip i have tried a 2 diffrent software and vesion i will include a link down below, mein is xm25qh128 i used EN25qh128 as you told me here is the link : https://www.dropbox.com/sh/pjpn5akz95i7z...B2JSYem-7a?dl=0 can you check if there are correct and can i write it back



@Lost_N_BIOS


EDIT* xm25qh128A

@Saeed Haidar - Only Colibri dump OK Did you get Pomona 5250 clip?

Do you need one of these edited to unlock menu, or you only did this for backup/recovery concerns?
Sorry, it's been so long, not sure, and I know you can flash in mod BIOS without programmer, so not sure where we were with your BIOS.
Ohh! I just found your folder in my BIOS, looks like I sent you unlocked BIOS already and it's not even this same model this thread is about! Now, I see our previous discussion on page before this one too, so you can disregard above now

i bought this one https://www.amazon.de/-/en/gp/product/B0...0?ie=UTF8&psc=1

it work way bettter then the ones comes with ch341a

edit* https://www.amazon.de/-/en/KeeYees-SOIC8...&s=ce-de&sr=1-1

That is same cheap clip that comes with all the CH341A, it will wear out quick too, it's only good now because it's new, just like your original was good when new too.
If you want a good clip you need Pomona 5250 + Long Dupont cables with M/F ends.

Hi, I have unlocked 315-52 bios version 1.08 now new version is 1.11 can I update with out opening laptop and kepping unlock?
Is there any benefit to upgrade bios?
Thanks

@zmay2509 - If you update BIOS you will have to dump with programmer again and have BIOS re-edited, then program back in. But ONLY IF you were unable to make flash possible via vars edit and FPT << However, I believe we're using this method below now, so programmer is not needed!
See post #388, this is how we do it without programmer (so you don't have to open system) - [Help] Unlock advanced menu on 2019 Acer Predator Helios 300 PH315-52 (26)
So you can update to latest BIOS, then dump vars and biosreg and send to me. Then I will edit vars for you, you program it back in, reboot, and dump BIOS region again with FPT and then test flash it back (will succeed), then you send me that to unlock and I edit and you then flash it back.

Thanks for help.

here are 2 files

Hi @Lost_N_BIOS, I have a locked bios v1.11 which I've dumped and attached the vars.txt file. Would be great if you'd be able to help me get this unlocked. Thanks in advance!