Well, I really dont know what do more.
On the test board everything was ok. The LED was blinking, the LCD shows the numbers.
Now I wrap it again and it aint work, unless I touch the 8Mhz crystal with my hand ;-0
That usually indicates a missing ground and/or pullup or pulldown somewhere, likely on MCLR, or missing cap's between Vdd and Vss (both pairs and across the pairs).
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