Check the battery with the other Handheld, If it is working fine.
You need to reinstal the Software of you're Handheld with the help of Desktop manager and Application loader.
Have same problems, How to fix the problem: I cannot upgrade or downgrade the software for my BB....
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Have same problems, How to fix the problem: I cannot upgrade or downgrade the software for my BB. The error appears: "Catastrophic Assertion Failure: Reset". Please help me to solve that