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Old 11-23-2005, 11:14 AM   #1 (permalink)
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Default BB7520 Nextel - Can I go back to 4.0, from 4.02?

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Is there any way to totally wipe the OS and reload an older version?

4.02.37 consistently has problems with my bluetooth headset, but the version right before did not ... ive tested it with many headsets and handsets.
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Old 11-23-2005, 11:17 AM   #2 (permalink)
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Follow the downgrade instructions found in the "BlackBerryOS Upgrade" link in my BlackBerry FAQ.
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Old 11-23-2005, 11:27 AM   #3 (permalink)
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Any idea where I can find older nextel 7520 versions? 4.0.0.249 i know works.
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Old 11-24-2005, 11:55 AM   #4 (permalink)
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both versions are on the download site.

https://www.blackberry.com/Downloads...B9D5EE16489088
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