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Archived:Bluetooth serial connection problems in S60 Nseries devices (Known Issue)

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Archived.pngArchived: This article is archived because it is not considered relevant for third-party developers creating commercial solutions today. If you think this article is still relevant, let us know by adding the template {{ReviewForRemovalFromArchive|user=~~~~|write your reason here}}.

Article Metadata
Tested with
Devices(s): Nseries devices
Platform(s): S60 2nd Edition, FP3
S60 3rd Edition
S60 3rd Edition (initial release)
S60 2nd Edition (initial release)
Created: User:Technical writer 1 (25 Jan 2007)
Last edited: hamishwillee (30 May 2013)


Random freezing of Bluetooth serial connection (RFCOMM) is observed in Nokia's S60 Nseries devices. The connection stays active but no data is transmitted and no errors/events are received when freezing occurs. The observed interval of this freezing depends on the device and how actively the application transfers data over the connection. Typically, this happens once every few hours.


This problem is corrected for S60 3rd Edition Nseries devices. The fix is included in week 38 or newer software builds (3.0638.x.x).

S60 Eseries devices, Nokia 3250, and Nokia 5500 Sport are not affected by this issue. The problem has also been corrected in the latest software builds for S60 2nd Edition Nseries devices.

Applications can try to work around the problem by implementing a watchdog timer, that is, a timer that expires after a specified time of non-activity over the Bluetooth serial connection. Once expired, the connection is automatically closed and re-opened.

This page was last modified on 30 May 2013, at 23:44.
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