Third Party > Repairing and Upgrading Rockbox Capable Players

jb rec 20 only playing 1/2 speed

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malefactor:
Short version:  rockbox was running fine, playing fine.  Add some files to it, and the next time I try to use it, everything plays half speed.. including things that I KNEW played fine before.

Anyone seen this?  How do I fix?

malefactor:
And, get this, when I plug in the USB cable, the problem goes away.  (Note the USB cable is NOT ACTUALLY CONNECTED TO ANYTHING).

Can be repeated.  Frequently.

What the hell is this?  I did replace the battery recently; may be related to this?

malefactor:
And, additional playing around has revealed that it seems to be pressure or something that is "fixing" the problem temporarily.  I can hear momentarily fixed music when I press certain buttons or apply pressure to the usb cable.

Anyone seen this?

LinusN:
Open it up, look for broken solder joints, especially ground connections.

malefactor:
This problem may have been related to the battery upgrade procedure.  I noticed the battery was in there very tightly, and it may be possible that the rear door wasn't contacting the battery surface enough.

When I applied pressure to the top and bottom edges (battery door + across from it), the problem went away permanently.

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