BlackBerry® Bold™

[compacto888]

out of a sudden..my bold 9790 switch itself off...then when i tried to switch it on again, it won't start..i've tried charging the battery and few attempts to switch it on by pressing the power button, it just would not start...then i tried to connect it to my Pc usinf blackberry desktop, i would not detect..could anyone help me? any advice on how i can get it back to switch on?

[Najiya · Accepted solution]

Did you try removing the battery and inserting it back again?

[compacto888]

yes i did that...but still i can't switch it on...when i tried to connect to the PC again...it says..the handset is rebooting or the battery is dead...

[sdgardne · Accepted solution]

Hi and Welcome to the Community!

Please try this sequence...note that, throughout the entire 4h15m process, your BB must remain connected to a known-good wall charger (not PC USB):

1. With the battery inside, connect your BB to the wall charger
2. Leave it alone for 2 hours, no matter what the LED or the display does
3. Remove the battery
4. Wait 15 minutes
5. Insert the battery
6. Wait another 2 hours, no matter what the LED or the display does

This has been known to "kick start" some BBs.

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It is also possible that your battery or BB has experienced a problem...to test, this sequence is needed:

1. Obtain a known good and already fully charged additional battery...use it in your BB and see what happens
2. Obtain access to a known good and identical BB...use your battery in it and see what happens

The results of this will indicate if it's your BB or your battery that has the problem.

Good luck and let us know!

[compacto888]

thank you very much for your help sdgardne..appreciated it so much..i have tried what you told me to do but still the same...however i've sent my BB today to an authorized Blackberry Service Center and after a brief checks, they told me that maybe the Software has crashed or maybe the Motherboard. if the software crashed then it would be a small problem but if the motherboard had crashed, then my pocket will be empty...by the way, still waiting for them to get back to me....cross my fingers...hope it won't be so bad...by the way...thanks a lot for your help...

[miriamt1003]

Hi,

I am facing a similar problem with my BB 9790. The phone switches off by itself (even when the battery shows as fully charged) and then switches back on (on its own) and a few minutes later switches off - it keeps doing that. The only way it doesn't switch off is if its connected to a charger.

I don't know what to do!! Please help!

[sdgardne]

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miriamt1003 wrote:

Hi,

I am facing a similar problem with my BB 9790. The phone switches off by itself (even when the battery shows as fully charged) and then switches back on (on its own) and a few minutes later switches off - it keeps doing that. The only way it doesn't switch off is if its connected to a charger.

I don't know what to do!! Please help!

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Hello,

Please read this entire thread and try what is posted in message 4 above.

Good luck and let us know!