New Contributor
New ContributorI analyzed the schematic and concluded that there is no communication between the SOM and the mainboard. Specifically, the SoM_Prsnt# signal, which detects that the module is inserted, is in an open state – as shown in the schematic below at this location:
Following this lead, I inspected the mainboard itself and, unfortunately, discovered some issues.
Firstly, the mainboard is bent – to be honest, this could happen during production:
I also checked the connectors that link the SoM to the mainboard (J9, J13). Unfortunately, the ends of these connectors are not fully mated (not fully locked) – as shown in the attached photo. However, the connectors in the middle are properly aligned.
Unfortunately, I am unable to fully press them in – it seems that the spacers between the SoM and the mainboard prevent the connectors from being fully inserted.
Theoretically, I could disconnect the SoM from the mainboard, remove the spacers, and reconnect it, but I’d prefer not to do this since it’s a new purchase, and removing components from this type of connector is quite difficult. Unfortunately, I’ll have to return it to the distributor under warranty.
