Repair of the lens

This lens received with non-functioning autofocus. Otherwise lens was detected by test camera Nikon D800 correctly and mechanically was working without noticeable issues.

After disassembly similar to shown in this and this videos damaged flex PCB was discovered:

Repair was simple restoring of connections with metal wire soldering.

This FPCB was connected to electronics module mounted in lens body.

After reassembly auto-focus started to operate normally.

Test photographs