| | JUM Error 541
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I received a new Blackberry 7230 yesterday, about an hour later it turned off and the following error appeared on the screen:
JUM Error 541
I turned it on again and everything was ok until the evening, then it tuned off by itself while lying on the table and since then nothing works to power it on, no battery replacement etc. only the red led flashes 4 times, then stops and then flashes again...