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New Contributor
Posts: 3
Registered: ‎01-31-2013
My Device: Bold 9900
My Carrier: Bell

Bold 9900 loosing messages


When ever I open emails on my desktop at work, a lot of the emails that were on my phone disappear.  I think I've altered a setting on my phone, but not sure what! 


This never used to happen until recently!  I had an unrelated issue with the phone and had to perform a security wipe.  I re-installed the settings from a backup file, everything else seems to be as it was before, apart from this.  Can anyone help please?

Hall of Famer III
Posts: 57,844
Registered: ‎11-28-2008
My Device: PRIV (6.0.1/AAG853), Z10/Z30/Q10 (, Playbook (
My Carrier: TMobile USA

Re: Bold 9900 loosing messages

Hi and Welcome to the Community!

With a strong carrier network signal (e.g., not merely WiFi), I suggest the following steps, in order, even if they seem redundant to what you have already tried (steps 1 and 2 each should result in a message coming to your BB...please wait for that before proceeding to the next step):

1) Register HRT

  • KB00510 How to register a BlackBerry smartphone with the wireless network
  • Please wait for one "registration" message to arrive to your Messages app

2) Delete and Resend Service Books

  • KB05000Delete the service book for the BlackBerry Internet Service email account from the BlackBerry smartphone
  • If you have no CMIME entry, then skip the deletion
  • KB02830 Send the service books for the BlackBerry Internet Service
  • Please wait for "Activation" Messages, one per already configured email account, to arrive in your Messages. If you have no already configured email accounts, please wait 1 hour.

3) Reboot

  • With power ON, remove the back cover and pull out the battery. Wait about a minute then replace the battery and cover. Power up and wait patiently through the long reboot -- ~5 minutes.
  • See if things have returned to good operation. Like all computing devices, BB's suffer from memory leaks and such...with a hard reboot being the best cure.

Hopefully that will get things going again for you! If not, then you should try deleting and re-adding your configurations for the affected email accounts. Otherwise, you should contact your mobile service provider for formal support.

Good luck!

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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Posts: 35
Registered: ‎08-25-2013
My Device: BlackBerry Bold 9900
My Carrier: AT&T

Re: Bold 9900 loosing messages

It may be that your LMM took over as well. Click here for more information on how your phone can take over.

What is the Low Memory Manager feature on the BlackBerry smartphone.