Blackberry Troubleshooting
Slow/Lagging Performance

Try the following actions to resolve the issue. If the issue persists, proceed to the next troubleshooting step.

Confirm that all installed third-party applications are approved for the device

Make sure that all third-party applications installed on the BlackBerry smartphone are approved for the device. If the issue persists, remove third-party applications to make sure these are not affecting performance.

Perform a hard reset

A hard reset is similar to restarting a computer that stops responding. A hard reset closes all running BlackBerry applications, restarts the BlackBerry smartphone operating system, and restarts the hardware components of the BlackBerry smartphone, including the wireless transceiver.

Note: A hard reset does not delete any settings or data on the BlackBerry smartphone.

To perform a hard reset, complete the following steps:

  1. Turn the BlackBerry smartphone off.
  2. Remove the battery.
  3. Reinsert the battery.
  4. Wait for the BlackBerry smartphone to turn on.

Note: If the issue returns after performing a hard reset, then contact technical support for further investigation.

Update the BlackBerry Device Software

You can download the latest version of Blackberry Device Software from Follow the instructions on the screen to download the latest version currently available from your wireless service provider.

Maximize flash memory

You can keep the BlackBerry smartphone operating at peak efficiency by maximizing the available flash memory. Increase the amount of memory available on your BlackBerry smartphones by completing the following tasks:

  1. Add a media card
  2. Delete unused languages
  3. Delete call logs
  4. Delete sample video
  5. Clear Cache and Cookies in Browser
  6. Remove rarely used applications
  7. Delete old data

Add a media card

You can add memory to a BlackBerry smartphone by inserting a media card to extend the memory available and storing media files such as videos, ring tones, pictures, or songs.

Delete unused languages

Deleting unused languages is highly recommended because it significantly increases the amount of available flash memory.

To delete unused Languages, complete the following steps:

  1. On the Home screen, click Setup Wizard.
  2. Click Languages.
  3. Select the language that you want to use on the BlackBerry smartphone, and click Next.
    Note: The BlackBerry smartphone deletes all languages not selected.

Delete call logs

To delete call logs, complete the following steps:

  1. On the Home screen, click Messages
  2. Press the Menu key.
  3. Click View Folder.
  4. Click Phone Call Logs.
  5. Scroll to the top date and highlight it.
  6. Press the Menu key.
  7. Click Delete Prior.

Delete sample video

To delete sample video, complete the following steps:

  1. Go to Options > Advanced Options > Applications.
  2. Highlight Blackberry Sample Video.
  3. Press the Menu key.
  4. Click Delete.

Clear the cache and delete cookies

To clear the cache and delete cookies in the Browser, complete the following steps:

  1. On the Home screen, click Browser
  2. Press the Menu Key
  3. Click Options > Cache Operations.
  4. Click Clear History.
  5. Under Pushed Content, click Clear.
  6. Under Cookie Cache, click Clear.

Remove rarely used applications

To remove rarely used applications from the BlackBerry smartphone, complete the following steps.

  1. On the Home screen, click Options.
  2. Click Advanced Options.
  3. Click Applications.
  4. Highlight the application
  5. Press the Menu key.
  6. Click Delete.

Delete old data

You can manually delete old and unused items, and also set the BlackBerry smartphone to delete old items as part of its regular maintenance.

To delete an MMS message, complete the flowing steps:

  1. In Messages, click an MMS message.
  2. Press the Menu key.
  3. Click Delete.

To save an MMS message on a media card, complete the following steps:

  1. In an MMS message, press the Menu key.
  2. Click one of the following menu items:
    • Save Image
    • Save Audio
    • Save Ring tone
    • Save Video
    • Save Voice Note

To change the Keep Messages setting, complete the following steps:

  1. In Messages, press the Menu key.
  2. Click Options.
  3. Click General Options.
  4. Set the Keep Messages field.
  5. Press the Menu key.
  6. Click Save.

If this issue is still not resolved, follow your wireless service provider's procedures to service or return the BlackBerry smartphone.

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