Forum - RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P

#31 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Thu Nov 19, 2020 10:06 pm (Last edited: Thu Nov 19, 2020 10:07 pm)

If your BIOS is RSA signed, then NO one can modify it.

* Edit - What do you need changed in the BIOS, you can make changes to any setting you want via editing vars

Please don't send PM's for help on BIOS edits, I can't help with BIOS in PM's. Please make a thread and I will try to help as soon as I can - thanks!
If you appreciate my efforts and are willing to donate to help improve my hardware, gift cards work for me (Amazn, NuEgg, eBa) - send me a PM
I view the forum like this, please bump your thread 1x every 24-48 hours if no reply

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#32 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Thu Nov 19, 2020 10:07 pm

Zitat von Lost_N_BIOS im Beitrag #31
If your BIOS is RSA signed, then NO one can modify it.

how can I be convinced of this myself? how to check whether the bios is signed? it's just not HP...

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#33 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Thu Nov 19, 2020 10:10 pm (Last edited: Thu Nov 19, 2020 10:11 pm)

See my edit above.
I don't know how to tell if BIOS is signed like that directly, other than I can make simple test edit for you, like update a CPU microcode, then if that bricks, it's for sure sign that it is RSA signed, or otherwise internally signed/checked etc
I will make you BIOS for this kind of test tonight when I get back, then we can find out.

Please don't send PM's for help on BIOS edits, I can't help with BIOS in PM's. Please make a thread and I will try to help as soon as I can - thanks!
If you appreciate my efforts and are willing to donate to help improve my hardware, gift cards work for me (Amazn, NuEgg, eBa) - send me a PM
I view the forum like this, please bump your thread 1x every 24-48 hours if no reply

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#34 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Thu Nov 19, 2020 10:12 pm

Zitat von Lost_N_BIOS im Beitrag #33
See my edit above.
I don't know how to tell if BIOS is signed like that directly, other than I can make simple test edit for you, like update a CPU microcode, then if that bricks, it's for sure sign that it is RSA signed, or otherwise internally signed/checked etc
I will make you BIOS for this kind of test tonight when I get back, then we can find out.

Okay, let's check it out then. If I restore the bios through the crisis mod, I myself smashed the bios a couple of times and he always helped me.

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#35 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Thu Nov 19, 2020 10:14 pm

OK, tonight I will make you a test BIOS and we'll see
Then if it bricks, you'll have to tell me what you want unlocked BIOS for, and we can directly change via vars edit instead.

Please don't send PM's for help on BIOS edits, I can't help with BIOS in PM's. Please make a thread and I will try to help as soon as I can - thanks!
If you appreciate my efforts and are willing to donate to help improve my hardware, gift cards work for me (Amazn, NuEgg, eBa) - send me a PM
I view the forum like this, please bump your thread 1x every 24-48 hours if no reply

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#36 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Thu Nov 19, 2020 10:22 pm

Zitat von Lost_N_BIOS im Beitrag #35
OK, tonight I will make you a test BIOS and we'll see
Then if it bricks, you'll have to tell me what you want unlocked BIOS for, and we can directly change via vars edit instead.

Okay, but I have night now, so I can hardly test when you send, most likely later.
Thanks for noticing and trying to help me.

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#37 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Fri Nov 20, 2020 9:18 am (Last edited: Sat Nov 21, 2020 5:00 am)

Zitat von Lost_N_BIOS im Beitrag #35
OK, tonight I will make you a test BIOS and we'll see
Then if it bricks, you'll have to tell me what you want unlocked BIOS for, and we can directly change via vars edit instead.

@Lost_N_BIOS
Well, what about the test BIOS?
----------------------

So, I myself tried to replace the logo through H2OEZE, I used this tool in different versions.
In all cases, there was a cyclic reboot with a flashing screen backlight.
Looks like RSA Key's defense is worth it.
@Lost_N_BIOS
Can you change the amount of memory allocated to the built-in graphics? thanks
UPDATE: thanks, no need, I myself was able to change the size of the allocated memory with the help of H2OUVE, sorry

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#38 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Sat Nov 21, 2020 5:03 am

@sergeyshibaev228 - I kept telling you NOT to use H2OUVE, this will brick the BIOS in many cases And, changing logo must be done in certain way, with properly formatted/created images
Yes, I can help you to change ANY setting, hidden or visible, via editing vars the same way we did the vars edit previously.

So, now that you changed what you wanted anyway, do you still want to test a microcode edit to see if the BIOS is RSA signed or not?

Please don't send PM's for help on BIOS edits, I can't help with BIOS in PM's. Please make a thread and I will try to help as soon as I can - thanks!
If you appreciate my efforts and are willing to donate to help improve my hardware, gift cards work for me (Amazn, NuEgg, eBa) - send me a PM
I view the forum like this, please bump your thread 1x every 24-48 hours if no reply

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#39 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Sat Nov 21, 2020 9:48 am (Last edited: Sat Nov 21, 2020 9:59 am)

Zitat von Lost_N_BIOS im Beitrag #38
@sergeyshibaev228 - I kept telling you NOT to use H2OUVE, this will brick the BIOS in many cases And, changing logo must be done in certain way, with properly formatted/created images
Yes, I can help you to change ANY setting, hidden or visible, via editing vars the same way we did the vars edit previously.

So, now that you changed what you wanted anyway, do you still want to test a microcode edit to see if the BIOS is RSA signed or not?

@Lost_N_BIOS
let's check the test BIOS
the factory BIOS is flashed, the settings are reset to the factory ones and your varsm are applied

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#40 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Sat Nov 21, 2020 10:35 am (Last edited: Sat Nov 21, 2020 10:36 am)

@sergeyshibaev228 - OK, lets update a microcode and test if bricks or not. If this does, then BIOS is RSA signed, or otherwise internally signed/checked etc.
Send me a current dump of the BIOS as it is now

Please don't send PM's for help on BIOS edits, I can't help with BIOS in PM's. Please make a thread and I will try to help as soon as I can - thanks!
If you appreciate my efforts and are willing to donate to help improve my hardware, gift cards work for me (Amazn, NuEgg, eBa) - send me a PM
I view the forum like this, please bump your thread 1x every 24-48 hours if no reply

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#41 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Sat Nov 21, 2020 11:06 am (Last edited: Sat Nov 21, 2020 5:59 pm)

Zitat von Lost_N_BIOS im Beitrag #40
@sergeyshibaev228 - OK, lets update a microcode and test if bricks or not. If this does, then BIOS is RSA signed, or otherwise internally signed/checked etc.
Send me a current dump of the BIOS as it is now

@Lost_N_BIOS

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#42 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Sat Nov 21, 2020 11:07 pm (Last edited: Sat Nov 21, 2020 11:10 pm)

If you can flash BIOS region only via FPT, that is all we need to edit/flash, no need to dump with programmer or anything. >> FPTw.exe -bios -d biosregnow.bin
Sorry if any confusion!

Also, dump this only, and send tome for secondary follow up test
FPTw.exe -a 0x508000 -l 0x226000-d mainDXE.bin

Please don't send PM's for help on BIOS edits, I can't help with BIOS in PM's. Please make a thread and I will try to help as soon as I can - thanks!
If you appreciate my efforts and are willing to donate to help improve my hardware, gift cards work for me (Amazn, NuEgg, eBa) - send me a PM
I view the forum like this, please bump your thread 1x every 24-48 hours if no reply

reply

#43 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Sat Nov 21, 2020 11:09 pm

Zitat von Lost_N_BIOS im Beitrag #42
If you can flash BIOS region only via FPT, that is all we need to edit/flash, no need to dump with programmer or anything. >> FPTw.exe -bios -d biosregnow.bin
Sorry if any confusion!

well, now I don't have this laptop in my hands, I gave it to a friend, he wants to buy one for himself)
can you help with another laptop, change the parameters of the allocated video memory? I created a separate topic
thanks

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#44 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Sat Nov 21, 2020 11:11 pm

Ahh, OK! When, if you get it back, see my edit above
Yes, I will check other thread tonight

Please don't send PM's for help on BIOS edits, I can't help with BIOS in PM's. Please make a thread and I will try to help as soon as I can - thanks!
If you appreciate my efforts and are willing to donate to help improve my hardware, gift cards work for me (Amazn, NuEgg, eBa) - send me a PM
I view the forum like this, please bump your thread 1x every 24-48 hours if no reply

reply

#45 | RE: [REQUEST] Hidden settings - Acer Aspire A315-33-P40P datum

Mon Nov 23, 2020 4:21 pm

Zitat von Lost_N_BIOS im Beitrag #44
Ahh, OK! When, if you get it back, see my edit above
Yes, I will check other thread tonight

@Lost_N_BIOS
I have a laptop, I'm ready to flash a BIOS test

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