PreenFM > preenfm2 and preenfm3

Strange behaviour starting up

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dzenat:
Hi there,

I managed to update the firmware to 2.10. nice.
Then I made a mistakte by unpluging the usb cable out and now i can't even start up the preenfm.

The blue lights blink but nothing happens on screen ....it's all black.

Is there a reset some where to reset the system? or should I reload the firmware? I made a copy of firmware 2.08 before upgrading...

Any help?

dzenat:
Seems like after many tries, i finally manage to start up fine. But when playing with it, the screen display strange letterings....I don't understand what actually went wrong there...  to the developer, any ideas?

Xavier:
Sorry for the delay I'm on vacation far from home until august 5th.

That cannot be a firmware problem.

That's likely a bad solder joint or a missing 'led' resistor.

Soop:
Was there a solution or explanation for this?

I have just built a unit from a VanDaal kit and when starting up, briefly get squares then PreenFM2/Xavier credits/2.10, etc then it is blank. If I press buttons, I get nonsense/reverse words.

Is there a likely cause? I have been checking my solder joints and I can't spot anything. Hopefully I haven't missed anything obvious!

Any ideas or help would be greatly appreciated....

Soop:
Pics just in case I missed something obvious...
 


Hopefully my out-of-practice soldering is adequate! I did mess up with one of the 100nf caps (pic 1, to right) :-[ and had to attach above the holes but am hoping it's ok...

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