Do *22899 and wait for it to hang up. Repeat monthly.
What does *22899 actually do. The reason I ask is that I'm at 2 days, 2 hours of normal use and still have 50% battery (extended). Always want better, but don't want to mess up a good thing.
From my understanding it updates your PRL ( preferred roaming list?). In other words, it programs your phone to find the best and latest cell tower to use providing you with a stronger signal. You might want to Google "prl" for a better definition, i could be wrong
... excellent battery life BTW...
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