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
  • BlackBerry Enterprise Server
CollapseEnvironment
  • BlackBerry® Enterprise Server 5.0
  • BlackBerry® 7
  • DT 2037267
CollapseOverview

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

CollapseResolution
This issue has been fixed in BlackBerry Smartphone Software application version 7.0.0.529 and higher.
CollapseWorkaround

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

 

Note:

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.