06-14-2010, 05:10 PM
Join Date: Jul 2005
Location: Florida Panhandle
Carrier: T-Mobile USA
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Humor me. Do a battery pull. With the power on, remove the battery for 30-60 seconds. After the device boots, open options, then status, and copy and paste your free memory here. Also, does responsiveness significantly improve after the batter pull?
The upgrade to 4.5 could cause some loss in responsiveness, but I don't know. Browse the forum re 8100's and see what others say.
A memory card isn't going to help, except if you have media in main memory, you'll want to move it to the card to make more main memory available.
If you are running an aftermarket theme, you should try switching to a stock theme just as a test to see if it makes a noticeable difference.