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New Contributor
Posts: 3
Registered: ‎12-07-2012
My Device: Blackberry Cure 9300
My Carrier: Virgin

my blackberry turned off and wont turn back on



I had my phone on charge all night as per usual and i woke up to a white screen. I thought nothing of it as it has done this loads before so i took the battery out and put it back in and it worked. I then went to get a drink and when i returned my phoen was off. It wont turn back on no matter what i do. I have tried taking the battery out and putting it back in, i have tried charging it and i have tried leaving the battery out for a while before putting it back in and nothing. I even tried the  4h15m process and it didn't work. I woke up this morning and it still won't do anything.

I use my phone all the time, so any help on how to fix this would be great thanks. 

Hall of Famer III
Posts: 57,823
Registered: ‎11-28-2008
My Device: PRIV (6.0.1/AAG853), Z10/Z30/Q10 (, Playbook (
My Carrier: TMobile USA

Re: my blackberry turned off and wont turn back on

Hi and Welcome to the Community!

Just to double check, this is the 4h15m process to which you refer?

  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.

If so, then this "2nd part" would be your next step.


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!

Occam's Razor nearly always applies when troubleshooting technology issues!

New to the Community? Click here and also here for helpful guidance. Also please click here for additional helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions. If anyone has been helpful to you, please show your appreciation by clicking the button. Need a reference to BB10 OS/SR versions? Click here. Need a specific BB10 AutoLoader? Send me a private message.

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