BCU board needed ?


Cyssko

Active member
Location
earth
hello guys
so my alta wont start , the display show a totally empty battery and says not ready to start when pushing the start button and i do not hear the relay engaed (normal i guess)
the water pump start half a seond on when i turn the key on and then stop for ever
other than that nothing ! no error code!
so i remove the pak battery and open this one for the first time and right away i was really surprised by the quality of the welding of the first board i saw! ( i think the bcu board )
then i unbuild my second alta to compare both board ( pitures below ) and also try the good board in the "wrong bike " to make sure there is no trouble anymore and everything is fine
from my non professional point of view my bad board seems to be made by a beginner lol for real it remind me my welding at school , burning the board all around lol , anyway!
i'm not a electrical engineer and i'm sorry if i look like i disrespect the work made on this board


So here there is pictures of each good/bad component so we can compare

IMG-3665.jpg

IMG-3666.jpg

IMG-3667.jpg

IMG-3668.jpg

IMG-3669.jpg

IMG-3670.jpg

IMG-3671.jpg


Thank you for helping
 

Rashid510

Well-known member
Forum's Sponsor
Id be really curious to know the VINs of these bikes. Also furthermore your statement of "quality" is also interesting. We went through different PCBA vendors at Alta who had "issues" with performing quality work.

Not only that there has been an ongoing process of fixing top covers (BCUs) which successfully alleviates the issue.
 

snydes

Moderator
Staff member
Location
Pennsylvania
Contact Liquid Performance, they have the BCU’s


That BCU was definitely repaired at some point. There is a coating applied to the boards after they are manufactured and it’s clear that the coating is not present on the repaired/replaced components of the board with the problems.
 

Cyssko

Active member
Location
earth
Id be really curious to know the VINs of these bikes. Also furthermore your statement of "quality" is also interesting. We went through different PCBA vendors at Alta who had "issues" with performing quality work.

Not only that there has been an ongoing process of fixing top covers (BCUs) which successfully alleviates the issue.
Thank you for the fast reply , what is your personal opinion about this ?
the vin of the dead component is 56PARAEM7JB000261
and the good one is 56PARAEMOKB000510
 

Cyssko

Active member
Location
earth
Contact Liquid Performance, they have the BCU’s


That BCU was definitely repaired at some point. There is a coating applied to the boards after they are manufactured and it’s clear that the coating is not present on the repaired/replaced components of the board with the problems.
ho thank you for guiding me
i contact the previous owner and he said he never had any problem with the bike also not sure anymore if he was he first owner of it
 

Rashid510

Well-known member
Forum's Sponsor
I wonder why the BCUs got loaded and none of the other electronics did . . . . . (ie DCCPs, ACMs, etc). Good if you need a BCU, however. At least until they're all gone.

BCU, DCCP, ACM, Display and Inverter PCBAs had released bootloaders with our vendors. So that its public at this point, the ACM bootloader had sensisitve components which were related to VIN/Mileage - which was a bit concerning with the FW team. Hence why the ACM boards are bricks.

BCUs at Liquid are for R packs only.....not A packs.

Looks like my explanations fall on deaf ears in the forum or @Philip likes to hide my posts now...who knows.
 

Mark911

Well-known member
Location
Corona Ca
BCU, DCCP, ACM, Display and Inverter PCBAs had released bootloaders with our vendors. So that its public at this point, the ACM bootloader had sensisitve components which were related to VIN/Mileage - which was a bit concerning with the FW team. Hence why the ACM boards are bricks.

BCUs at Liquid are for R packs only.....not A packs.

Looks like my explanations fall on deaf ears in the forum or @Philip likes to hide my posts now...who knows.
Hummmmm... not sure I understand. Are you saying;
1) The Bootloaders for all the main boards are publicly available now (except ACM)?
2) All the main boards (except ACM) at Liquid have the bootloaders installed?
3) Some combination of the above?

If so, I don't think I've ever seen that stated on the forum.
 

Rashid510

Well-known member
Forum's Sponsor
Hummmmm... not sure I understand. Are you saying;
1) The Bootloaders for all the main boards are publicly available now (except ACM)?
2) All the main boards (except ACM) at Liquid have the bootloaders installed?
3) Some combination of the above?

If so, I don't think I've ever seen that stated on the forum.

1) NO
2) YES
3) See answers 1 and 2.

Many months ago I made a wiki describing components and info about the bikes. Maybe that info got lost. Either way here you go.
 

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