Question about Symbol MC70

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API call to enable WiFi freezes screen

Hello, we programmatically turn Wifi on using DevicePowerNotify.

Occasionally, a call to DevicePowerNotify freezes the screen completely. Sometimes it recovers, but most of the time (when this happens) MC70 users simply reset the device, incurring data loss for our application.

The problem is very hard to reproduce, but it seems like something "breaks" in the Wifi driver, and once that happens, then EVERY call to DevicePowerNotify will result in the screen freezing up for at least 7-8 seconds.

Has anybody heard of this problem before? It does not seem to matter if the call was from the UI thread, or an additional worker thread: once it's "broken", it keeps freezing the screen until the device is "soft" reset.

Will be grateful for any ideas, thank you.

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Here at Legacy Global we can help you. Call Diana at 1-847-750-9231.

Posted on Sep 09, 2008

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