Wiki Consolidated eMMC Thread (MCU repair) (Black Center Screen)

[Slexs]

Sorry if this has been answered. I have a 13'. Could I just install a MCU and screen from a 2017' on up to 2020 address this eMMC?
Thanks

No, you need files from the flash drive in your OEM MCU that is specific to your car.

 

[TonyT]

Anyone in Colorado that can do this repair?

I don’t believe so for the emmc swap. You may be able to find someone to help remove the mcu so you can send the emmc to me for repair.

 

[amiral_sub]

this video shows how to proceed :

At 1min05 we see that they backup the emmc without desoldering it. That is the perfect way to do whithout any risk of burning the hynix emmc.
They wire an emmc programmer to pins which are in contact with the tegra board : 4 wires, maybe 2 for current and 2 for serial data.

Do anyone knows how to do that ?

 

[appleguru]

I don’t believe so for the emmc swap. You may be able to find someone to help remove the mcu so you can send the emmc to me for repair.

When do you need this done? I’ll be out in CO next week and could bring some gear to do the repair if you’re in a bind.

 

[EV-Fixme]

When do you need this done? I’ll be out in CO next week and could bring some gear to do the repair if you’re in a bind.

@dfdtruckie you can reach out to appleguru

 

[CravingMender9]

When do you need this done? I’ll be out in CO next week and could bring some gear to do the repair if you’re in a bind.

Wow, if you don't mind me asking, can you please tell us how you do the repair on the road (talking about the eMMC copy / swap, not the actual removal of the unit)? Genuinely interested to know and learn. Thanks.

 

[appleguru]

Wow, if you don't mind me asking, can you please tell us how you do the repair on the road (talking about the eMMC copy / swap, not the actual removal of the unit)? Genuinely interested to know and learn. Thanks.

Well, I have a more complete BGA rework setup in my shop at home, but for a road repair I would pack a hot air rework station, and soldering iron primarily. (And some flux, solder, braid, solder sucker, screwdrivers...). As long as I have a level bench and some power, can do it.

 

[CravingMender9]

Well, I have a more complete BGA rework setup in my shop at home, but for a road repair I would pack a hot air rework station, and soldering iron primarily. (And some flux, solder, braid, solder sucker, screwdrivers...). As long as I have a level bench and some power, can do it.

Thanks

 

[David_Cary]

If WK057 isn't doing preemptive repairs, is someone else doing them if your ship it to them?

 

[appleguru]

If WK057 isn't doing preemptive repairs, is someone else doing them if your ship it to them?

Several of us in this thread (myself included) can help. Preemptive repairs are usually easier than post-failure repairs as there is a higher chance of being able to migrate your carkeys / MCU commands key to the new emmc (on dead emmcs it is sometimes not possible to recover these).

 

[Malujerry]

Anyone near NYC/Long Island who knows how to do this?

 

[Aroop]

Anyone in Seattle area who could help me with this issue. My screen went blank couple of days ago. I was able to drive the car back to my home and left it on charge.

Mine is 2015 car with AP1.

I am also looking for replacing the 3G modem with LTE if its doable.

 

[Shadious]

Anyone in Seattle area who could help me with this issue. My screen went blank couple of days ago. I was able to drive the car back to my home and left it on charge.

Mine is 2015 car with AP1.

I am also looking for replacing the 3G modem with LTE if its doable.

Taking the dash apart is not that difficult if you take it slow and watch all the videos on this thread. @EVFixme will help with the other, more challenging part.

 

[TonyT]

Anyone in Seattle area who could help me with this issue. My screen went blank couple of days ago. I was able to drive the car back to my home and left it on charge.

Mine is 2015 car with AP1.

I am also looking for replacing the 3G modem with LTE if its doable.

Hi Aroop, we can help if you remove the board and send it to us. It's a good time to upgrade to LTE also.

 

[Aroop]

Thanks @Shadious . Got in touch with @TonyT to get this issue taken care of

 

[Banjo]

Has anybody here had luck getting a SC to install certs after putting in a new eMMC? Mine was failed and unrecoverable. What words did you have to say to get them to do it?

 

[dark cloud]

Has anybody here had luck getting a SC to install certs after putting in a new eMMC? Mine was failed and unrecoverable. What words did you have to say to get them to do it?

Sorry, but I think the correct words are: " I have $1300-1800 to give you for a new MCU"

 

[Banjo]

Yeah.. or " I have $3000 to give you for a refurb MCU v1 with the same memory issues". I was quoted $3k. For a refurb.

 

[Shadious]

Yikes!!!

 

[Malujerry]

What are certs?