I’m hoping to avoid the pain of holding little WSON probes in place like last time, and I’m looking at my options for safely backing up my EC firmware and re-flashing it when I have the fixed updated copy built.
Does the 13 Pro (not any chromebook edition, if there is one) support Closed Case Debugging (CCD) via the USB-C port? And does that have the capability of backing up and flashing the EC firmware?
My second choice would probably be find someone to help me micro-solder the JECDBG header.
My last choice is to use the probes and ASProgrammer and stuff.
Does anyone have answers or advice about the best way to do this, a few years after my original post? Thanks.
I was wondering if you were still looking at this board. Thanks for the reply.
You said CCD is supported but not for flashing, but the link you posted about the Nuvoton talks about using the UART pins to flash. The CCD exposes UART… but not the same one that the JECDB header does?
I definitely successfully used ectool to backup and flash last time (thank you!) but I want to cover my bases in case of bricking, so I need some non-ectool way to flash too.
CCD exposes UART but muxed through the PD controller, unfortunately, so I believe you can’t apply the pulldown as needed to get the monitor into flash mode.
cover my bases
Makes sense Alas, I think you will need JECDB for that.
