Quick note regarding a fault that developed yesterday on my original Analog Discovery.
This is still a really useful device, so although I upgraded to the AD2, I still regularly use the AD1.
At first it was an intermittent micro USB connection, then after a further half dozen or so re-insertions as I tried to understand the nature of the fault, it failed permanently.
So I opened it up and of course three of the five pads on the micro USB receptacle had separated from the board, including D+, D- and Vcc. To fix the D+ and D- is just a matter of scraping the tracks and adding a short couple of millimeters of link wire. The vias for Vcc underneath the receptacle so I removed the receptacle completely to take a look. There are large pads on both top and bottom of the board underneath the receptacle next to each other and connected with a few vias, so you can safely link the Vcc connection round to the reverse of the board.
After testing the repair, with a micro USB plug inserted, I added a tiny blob of superglue to the USB receptacle's pins in an effort to alleviate too much strain in future on the repair rework.