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I suspect that the soldering on the crystal was not perfect for the first time(?).
one more thing I forgot to mention earlier. with my replacement crystal I tried loading a new example from the MeggyJr set. and after this attempt the board started t…
storno my above comments. now it is working after some work. there was a problem around the soldering of the crystal - I suspect.
first I removed the original crystal and put a replacement there. with the replacement I uploaded one of the examples a…
Thanks for your answer Windell!
power: it seems to be ok. I measured the voltage between pin7 and pin22 and there is power. both with battery and with power supply (which is from evilmadscientis:).
I reheated the chip's pins to make it look better…