Pcb design troubleshooting

Job ID: 33386440

Budget: €18 – €36 EUR

Hi
I have a custom pcb carrier for compute module 4 designed by a freelancer and manufactured by PCBway. The problem is that it doesn't work. I need to understand why, and fix the design.

Can you help me? I have gerber files, pdf of the schematics and images of the assembled pcbs. I can also measure voltages and check connections.