Thanks for your help.
I tried the boot with the recovery button and a good SD-Card (boot ok with it some days ago) but nothing appends (no LED).
I have not the USB-Serial cable yet, but is there a method to completely reinitialise the PB pro with it ?
I tried the boot with the recovery button and a good SD-Card (boot ok with it some days ago) but nothing appends (no LED).
I have not the USB-Serial cable yet, but is there a method to completely reinitialise the PB pro with it ?