Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Old equipment can fail in various ways. There is one way I have in mind, that your Blackberry may have failed, that is relatively easy and cheap to repair. With that in mind:
- Does your Blackberry have a charger that plugs into it directly?
If so, please try connecting it to the charger, and then powering it On. Does that make it work, powering it On while it is on the charger?
If so, then the battery is all that has failed. And in that case, replacing the battery would get it working again.
...(system bug caused posting, apologies.)...