I’ve got an HRAP v3 sa kai that does absolutely nothing no matter where you plug it in, I opened it up and looked at it and there are two resistors missing from the main pcb, R33 and R16. Is there anybody that has one of these sticks that could open it up and look for the numbers on these resistors? I have soldering experience and access to single surface mount resistors.
Mind sharing a picture of that pcb? Also… have you tried replacing the stock usb cable?
Still using the stock usb cable, but there’s no visible damage and it doesn’t seem like it would be an issue compared to the missing components? As you can see R16 and R33 are missing, with the pads visible and space between. I can put new resistors there easily, but don’t know what the component values are.
I can see there are no resistors there, but i’d suggest to check the USB cable with a multimeter on continuity first…
I’m gonna check home for some of the hori pcb’s i’ve got laying around and tell you if there’s anything there 
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