
I've been using my V2.2 quite happily for a 2 weeks now but did something stupid the other day... I knocked the unit off the workbench and of course, it landed on the USB cable connector and snapped the PCB connector off. Luckily I had some spare connectors so I fired up my rework station, removed the bits that were still soldered to the board, and resoldered a new connector on. I've tested the connector for shorts and opens and it looks good but when I connect the unit to my computer (linux) I get power to the unit but only get the LCD backlight and no USB device registers on the computer. I've double checked that there's nothing accidentally shorting the "left" button that might keep the MCU from starting and I've tried shorting S301 to force DFU mode but that didn't work. Is there anything else I should be looking at?
A few other questions...
Can the unit run without the LCD touch panel connected if it's not needed? I use the unit exclusively when connected to a computer.
What do the non-IP5305 LEDs indicate? LED301 LED302 LED401 LED601?
Thanks!