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Based on this image it looks like possible
CLK
dD
and two pins that arent on this maybe a 1.8v thats located from somewhere else?
Sorry about the noob question above, I am new to this. From reading about eMMC cards, the ‘V88’ pin mentioned above is likely VSS (+1.8V) and the CMD pin is COMMAND I/O. Has anyone here successfully extracted data from the eMMC before unsoldering it from the board?
Looks like I should put up the high-rez picture by ce2078.Sorry about the noob question above, I am new to this. From reading about eMMC cards, the ‘V88’ pin mentioned above is likely VSS (+1.8V) and the CMD pin is COMMAND I/O. Has anyone here successfully extracted data from the eMMC before unsoldering it from the board?
its VSS and not V88. VSS = ground.
Looks like I should put up the high-rez picture by ce2078.
The strict meaning of these has been lost among a growing number of people, and so you will often see Vcc used as the positive supply in CMOS circuits and in many circuits, Vss/Vee is the same as the ground node, in which case it may or may not ever be noted as being Vss or Vee. In other circuits, there may be a more reasonable choice for the ground reference that is, generally, somewhere between the two values making Vss/Vee negative.
Anyway, Vcc and Vss are on either side of a snubbing capacitor, IOW it shunts noise from Vcc to ground.
I've pulled eMMC data off the CID but only was able to make D0 work, and very slowly. I know of several others who have too. But this was before the capacitor change on the Allsocket. Maybe it works better with that.
I've put up a higher-rez pic but MediaWiki is fighting back. As soon as I wrangle it you'll see it in much closer detail.
Thank you. The high res picture cleared all ambiguity. Now I just need to find the appropriate wires to buy. Do you have any recommendations?I've fu**ed with MediaWiki as long as I'm going to. Now you can at least drill down to the high-rez picture, then magnify.
I managed to dump a whole (intact) eMMC last week using the shown wiring and an el-cheapo SD-Card reader on Linux. The transfer speed was around 22 MB/s. The same setup only yielded around 6 MB/s when using a Macbook Pro, also producing read-errors on some occasions.Has anyone here successfully extracted data from the eMMC before unsoldering it from the board?
I managed to dump a whole (intact) eMMC last week using the shown wiring and an el-cheapo SD-Card reader on Linux. The transfer speed was around 22 MB/s. The same setup only yielded around 6 MB/s when using a Macbook Pro, also producing read-errors on some occasions.
The CID was powered with 2.7 V during the transfer with a current draw of about 900 mA.
You'd have to back it up every time you update. Or else be able to get a copy of everythng except the certificates.So Im wondering
Should we backup our chip in case it goes bad in the future? Im at the 3 year mark and out of warranty at this point.
I would love to understand this better. Is there not a limit to how old a backup can be for a restore on a Tesla managed car?...unfortunately tokens expire daily because remember: Life Is For Suffering. What matters is your carkeys, vin, gateway config and a few others...
On a Tesla-managed car the same rules apply, you still mainly need those key files and your current version number or you're dead -- which means you have to either root it or tap into it, and also means you will probably get noticed unless you're good at it.I would love to understand this better. Is there not a limit to how old a backup can be for a restore on a Tesla managed car?
Sure. I have an article on backing up. You can put this in a systemd timer or cron job.Rooter, after rooting the EMC, is there a way to back it up periodically? Yours is connected to your personal server, correct? Alternatively, would it be possible to access via a USB connection for diagnostic and backup? Thanks again.
He had given me permission to publish his Tesla implementation of the Fusee Gelee compromise which would allow anything including version downgrades, but has now decided instead to offer that as a service through TonyT when Tony is able to work it out. (Don't ask Tony about it. He'll let everyone know if/when he is able to do it) Nevertheless disappointing, especially as downgrading this way was my idea.