Question Can I use a Sony VAIO HK6 USB daughterboard in an HK1 laptop (VPCEH / PCG-71911M)? The ribbon latch on mine broke
I have a Sony VAIO PCG-71911M (VPCEH3N6E, HK1 platform). The 30-pin ribbon connector latch on its USB daughterboard broke off. The board is stamped DA0HK1T…, REV 1FX-D88, with 3 USB ports. I've held the cable in place with tape for now, but the contact isn't reliable.
The correct spare (DA0HK1TB6E0) isn't available where I live. I do have a donor VAIO with an "HK5" motherboard. Its USB board looks very similar: 3 ports, a 30-pin connector labelled CON1, the same SONY layout and the same cable direction. Its sticker reads 33HK6UB0000, though, so it may actually be an HK6 board.
I haven't plugged it in. I'm worried about the pinout, because a mismatch could put 5V on the wrong line and damage the motherboard.
Questions:
Are the HK1 and HK6 USB boards compatible, or at least known to share a pinout?
If I check continuity from each port's 5V and ground pins to the connector pins on both boards, is that enough to be safe?
Is there a good way to repair a broken FFC latch, or replace just the connector, without a hot-air station?