@ Tony: Thanks for answers (- and I did like the charger, BTW).
Frida's point about a delay circuit triggers another thought...
The random success/failure may be a race condition (cf PC BIOS delay setting for HDD initialisation).
Looking at the uBoot environment variables - as part of the topic: . There is a variable :
bootdelay=0.
What is the effect of changing this value to, say, 5 (seconds)? Or more?
Would this give things time to 'settle down' before kernel boots to look for USB, HDMI, etc?
I can't test this - because I don't have the problems
It's sort of firmware .. but it's safer than reflashing!!!!
Cheers,