[33hannahg]

My sons blackberry 9300 won't switch on it has a battery with a Red Cross through it, and that's with and with out the battery in , I've tried a few other batteries but nothing, I've tried uninstalling blackberry desktop and in stalling it So I could try updating my device but I get as far as reconnecting to JVM and says application loader was unable to connect to my device , any help or advice would be fantastic thank you

[trsbbs]

Is it a BlackBerry battery or aftermarket?

CB10 via Verizon Z10. 10.2.1.1925

[33hannahg]

The battery I had with the phone when bought it ages ago and 2 I bought as replacements

[33hannahg]

I don't think it's the battery because if I plug it in with no battery in it the battery with a Red Cross still comes on

[Draven2666]

Red x over anything means no. So in this case no battery. If you have a way, test your batteries on another device. They could be bad. If not, then it has to be the connector pins in the phone itself.

If batteries are working in another device then my first step would be to clean the connectors in the phone with rubbing alcohol.

Posted via CB10

[33hannahg]

I opened the phone up and cleaned it but still nothing :/

[thedustytaco]

I think its your battery, have you tested it on another device?
I would just get a new one from best buy for about 9-20$ in canada and lower in the us. Not sure about uk or anywhere else

[33hannahg]

The batteries work fine in his friends phone, the battery icon with the Red Cross in it comes on screen with out a battery in, and with a battery in,i would bin it but it has his photos and things on and I can't sync it because my computer is not recognizing it,but it does show that a USB device is plugged in because it tries to find drivers for it, the phone was working fine one night and ran out of charge, since then it's had this problem