Hi peops well has anyone heard of the news which relates to GOFETCH, apparently this can infiltrate the silicon cpu coding and exploit it.
Now I wonder if this enables serial number extraction and implementation ??
Just my 2 pence
Laters
Oxy
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Measured [B]PPDCIN_USBC_AON[/B] and coming out on meter as 5.14v
Also note that CC721 PPBUS_AON_3V3S2_VIN_ISNS is shorted to ground in continuity mode
Thanx OxyMeasured [B]PPDCIN_USBC_AON[/B] and coming out on meter as 5.14v
Also note that CC721 PPBUS_AON_3V3S2_VIN_ISNS is shorted to ground in continuity mode
Thanx OxyMeasured [B]PPDCIN_USBC_AON[/B] and coming out on meter as 5.14v
Also note that CC721 PPBUS_AON_3V3S2_VIN_ISNS is shorted to ground in continuity mode
Thanx Oxy
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Hi thanx for the response
Board is 820- 2020 which is m1 13"
Voltage from the meter now just bare board is
5.11v
0.001A
00005mA0000
was booting and that before I decided to remove components.
was wondering if the source of the problem was u8100 I believe this controls the voltages.
Poss fighting a losing battle here though I do recall a electrical burn smell after realising what I had done such a fool.
we live an learn I suppose hopefully!
Thanks again Oxy...
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Macbook Pro M1 13" NO display PP3V3_S2 issues
Hi peops
Ok I find myself on here once again trying to find a solution to my issue/problems with this device, basically I reckon I messed it up but trying to correct this issue.
Bascially device was working fine however I stupidly in my complete ignorance was putting back together and some how connected an M2 TRACKPAD which are clearly not compatiable. After I realised what I did the damage was done NO DISPLAY / No Keyboard caps lock light so I am like WTF I have i done idiot !!!!
After some scratching around I did some measuring and found that PP3V3_S2...
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Hi all
Just a quicky any reason i'm getting invalid image on T2 dumps ?
Thank OXY...
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Hey peops
As above I don't think this method works with M1 as there is no serial saved in the ROM chip itself
Great tool though
OXY 😉...
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Well yes the end goal is to retrieve the serial where ever this may be and then we all can perform the magic, sadly until that time has come we can only surmise !!...
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Re: Unserialized M1 Pro
So this maybe were the serial is I bet, just need a reader of sorts
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Re: Unserialized M1 Pro
Don't think that gonna make an iota of a difference, I am just guessing here but I posted months ago about a DFN chip situated left of CPU. Now this is near to the ROM on the underside of board and when looking at schematics it refers to some lines that go to CPU as SOCROM.
Anyone familiar with this abbreviation trying to find a reader as I have removed from a dodge board any points in the right direction will be greatly received !!
OXY
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Re: Unserialized M1 Pro
Morning all
Ok so the serial is not stored in the ROM as my own tests have confirmed this, removed ROM from MDM M1 and placed on another M1 and after some errors (As need proper DFU mode for M1) device restored although App configurator says it fails nope it doesn't.
The device is booting into Sonoma an activated with the original serial even though it had another ROM from another machine with a supposed serial.
This concludes there must be another ROM chip located elsewhere which contains the info required I am only...
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Re: Help needed: 2020 MacBook Pro M1 A2338 (keyboard and trackpad not working)
Motherboard issue for sure replaced a number of these for failing trackpad and keyboard, however on some instances it has been the top-case as it was telling the machine it was night night time which of course shuts down any ancillary components OXY !
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Re: Unserialized M1 Pro
So is it stored in the usual place but encrypted, as the M1 based on ARM architecture it must use some other method of being able to decrypt the bin to determine the serial. Only interested in the purpose of removing MDM an icloud at the mo
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Re: Macbook M1 Unlocked!
Hey
The pic shown is firmware lock
Connect device to a host with Apple configurator get into DFU mode and restore
This will install the OS remove Firmware lock but you will only know if this device is free from ICLOUD or MDM locks when setting up new user space !!
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Re: Unserialized M1 Pro
Hi again
Thanks for the clarification, I also can confirm boards are unserialized when I get them and have to run the Apple software utility to write serial to refurbed boards (AS THEY NOT NEW LOL)
So with this in mind I believe that there is another location that stores the serial and it connects with Apple over the net and it allows the write process to begin.
A little experiment I tried just recently was removing the ROM chip (winbond) from a refurb board and replaced with another ROM (mx25) which was MDM locked not icloud....
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Re: Unserialized M1 Pro
Hello
Thanks for the definitive answer makes sense, and yes in agreement with the fact Apple have these special tools at their disposal. And transferring CPU'S across sounds like a proper ball ache !
Still I wonder how a board is not serialised until it is connected to their server, it's like the serial resides somewhere else dormant until copied across. This sounds a little far fetched I know but there is another EEPROM chip located next to the CPU and this is almost directly above the ROM chip on the other side of an M1 pro...
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Re: Unserialized M1 Pro
Hi
Can we categorically confirm that serial is stored in CPU, if so how does a blank board that comes from Apple have the serial written over a network in sys config. Is there not another chip that has this info and works alongside the M1 chip with the additional ROM.
Either way there is a way round this as long as Apple don't know the board eee code or full number of said Logic board !
thanx oxy
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Re: Unserialized M1 Pro
Hi
Did seller give any details, sounds to me like it came from an ASP and will need a repair open for it to be serialised in AST 2 did it come with TOUCH ID.
Generally their system will know what board id matches to the serial of device as this is how the info is stored in the Apple system.
Until we know how to extract the serial etc or a tool is developed then this is gonna be of no use.
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