High CPU usage and battery drain when NFC related functions are disallowed by IT policy

Article ID: KB28750

Type: Support Content

Last Modified: 04-12-2012


Product(s) Affected:

  • BlackBerry Bold 9930
  • BlackBerry Bold 9900
  • BlackBerry Curve 9360
  • BlackBerry Curve 9350
  • BES5
  • BlackBerry® Enterprise Server 5.0
  • BlackBerry® 7
  • DT 2037267

BlackBerry® smartphones may experience high CPU usage or battery drain when the following NFC related IT Policies are applied:

NFC Features is set to Disallow
Allow NFC Tag Reader/Writer Mode is set to No
Allow NFC Peer to Peer Device Communication Mode
is set to No
Allow NFC Card Emulation Mode
is set to No

This issue has been fixed in BlackBerry Smartphone Software application version and higher.

On the BlackBerry Enterprise Server, set the following NFC related IT policies to:

NFC Features to Allow
Allow NFC Tag Reader/Writer Mode to Yes
Allow NFC Peer to Peer Device Communication Mode
to Yes
Allow NFC Card Emulation Mode
to Yes


CollapseAdditional Information

To view the current CPU usage of a BlackBerry 7 smartphone, go to the Application Management screen:

  1. Go to Options > Device > Application Management
  2. Scroll left or right to view CPU usage
  3. select the + at the top of this screen to expand total usage



To be implemented by IT policy, NFC (Near Field Communication) IT Policy rule definitions have to be imported to the BlackBerry Enterprise Server to be used with BlackBerry Devices with NFC capability. For more information regarding importing IT policy rule definitions into the BlackBerry Enterprise Server please refer to KB28284


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Visit the BlackBerry Technical Solution Center at www.blackberry.com/btsc.