Did you do short or long jumpers as part of your repair?
Short jumpers don't always work and have a higher return rate. The Intro group on FB has all kinds of testimonials about this. Long jumpers seem to solve the problem but removing the SIM reader can be a pain. I would check for proper continuity on the V1 pad to the TP under the SIM reader. There may be a break on the trace internally within the pcb.