A1708 820-00840-a efi lock

[peste]

Re: A1708 820-00840-a efi lock

Anyone who can unlock my BIN Macbook Air A1708

TIA

Raul

try..

[byulo]

Re: A1708 820-00840-a efi lock

try..

no BONG sound and display

Raul

[JohnnyComputers]

Re: A1708 820-00840-a efi lock

A1708 EMC 3164 820-00840-A
may someone help me with unlocked bios bin file plz

[peste]

Re: A1708 820-00840-a efi lock

A1708 EMC 3164 820-00840-A
may someone help me with unlocked bios bin file plz

post the original bios..

[cavalierks]

Re: A1708 820-00840-a efi lock

please this




thanx to team badcaps

[peste]

Re: A1708 820-00840-a efi lock

please this




thanx to team badcaps

I assume you want to delete the password...next time write the problem you have..read this..
https://www.badcaps.net/forum/showthread.php?t=103570
try..

[cavalierks]

Re: A1708 820-00840-a efi lock

I assume you want to delete the password...next time write the problem you have..read this..
https://www.badcaps.net/forum/showthread.php?t=103570
try..

yes it password ,after try you file password removed but macbook still show blocked try after 60 minutes and fmi icloud have solution for this

[Vesko356]

Re: A1708 820-00840-a efi lock

yes it password ,after try you file password removed but macbook still showbloacked try after 60 minutes and fmi icloud have solution for this

https://www.badcaps.net/forum/showth...00#post1228100

.

[cavalierks]

Re: A1708 820-00840-a efi lock

https://www.badcaps.net/forum/showth...00#post1228100

.

after pram X3 done thank you

[AlexVG]

Re: A1708 820-00840-a efi lock

Hi,
A1708
EMC 3164
Main 820-00840-A

I had problem with running.
I have checked SPI and found out this problem:
Detected CSE Extension 0x03 with wrong Partition Hash at FTPR > FTPR.man!

Then I took ME Cleared DUMP here, replaced Serial number.
Everything is running but I get EFI password request.
So, EFI is blocked.
Would you like help me to cut the password request please!

Here is my original DUMP and good dump.
Thank you.

[peste]

Re: A1708 820-00840-a efi lock

Hi,
A1708
EMC 3164
Main 820-00840-A

I had problem with running.
I have checked SPI and found out this problem:
Detected CSE Extension 0x03 with wrong Partition Hash at FTPR > FTPR.man!

Then I took ME Cleared DUMP here, replaced Serial number.
Everything is running but I get EFI password request.
So, EFI is blocked.
Would you like help me to cut the password request please!

Here is my original DUMP and good dump.
Thank you.

try..

[AlexVG]

Re: A1708 820-00840-a efi lock

Hi,
Thank you.
But something goes wrong.
Doesn't want to run the screen.
Consumptions is jumping from 0.01 until 0.430A

In ME Analyzer i have got the same problem:
Detected CSE Extension 0x03 with wrong Partition Hash at FTPR > FTPR.man!

Below is my previous dump that I read after turning on.
It works but asks password.

[AlexVG]

Re: A1708 820-00840-a efi lock

I can suggest what was before:
Somebody had tried remove the EFI lock before me. But had got the same results.
Probably he put wrong number, or would rather didn't change it.
Number in the SPI was C02TK51HHF1P
But on the bottom cover is FVFXQEK7HV29.
What do you thing may be different number cause of problem?

[peste]

Re: A1708 820-00840-a efi lock

I can suggest what was before:
Somebody had tried remove the EFI lock before me. But had got the same results.
Probably he put wrong number, or would rather didn't change it.
Number in the SPI was C02TK51HHF1P
But on the bottom cover is FVFXQEK7HV29.
What do you thing may be different number cause of problem?

so... post the bios where you want to delete the password and the S/N of the laptop... how hard is that??!!

[AlexVG]

Re: A1708 820-00840-a efi lock

Here is
SSN is correct now

I check it without SSD.
But with SSD the same

[peste]

Re: A1708 820-00840-a efi lock

Here is
SSN is correct now

I check it without SSD.
But with SSD the same

try..

[AlexVG]

Re: A1708 820-00840-a efi lock

Sadly,
Doesn't want.

[SMDFlea]

Re: A1708 820-00840-a efi lock

Sadly,
Doesn't want.

https://www.badcaps.net/forum/showpo...42&postcount=4

3.2. Apple

3.2.2. 2012 to 2017
For 2012 to 2017 machines, BIOS must be edited and reflashed to clear the password. There are 2 methods for this:

Clear out the whole SVS store. There are other stuff in this store, no idea what they are for so better avoid doing this.
Invalidate the CBF2CC32 NVRAM variable in that SVS store which contains the encrypted password. You just have to change one bit in its name, so like replace the C with an A or whatever. Note that strings are UCS-2 encoded, so in the hex editor it'll show up as 0x43 0x00 0x42 0x00 0x46 0x00 etc.

If there is an iCloud pin, you need to perform 3x PRAM reset after removing password. If FindMyMac is still enabled, you have to reinstall macOS while being disconnected from the Internet, then reconnect after logging in and bind to a new Apple account.
.

[peste]

Re: A1708 820-00840-a efi lock

Sadly,
Doesn't want.

try now..

[AlexVG]

Re: A1708 820-00840-a efi lock

Hi.
I have managed to unlock it with first version and with three times PRAM reset!
Very interesting!
Thank you ALL!
I am Happy!