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Root Remove system apps? Clear dalvik cache?

Cl8rs

Android Enthusiast
Oct 22, 2010
279
17
30
Roseville, CA
I found this app in the market that allows you to remove system apps. It says it can "freeze" apps. What does that mean? Is it safe? I heard if you remove system apps you can't get OTA updates, so could I reinstall them so I can get the updates? Also, is it good to clear the "dalvik cache"? I don't flash any roms or anything, my phone has been lagging really badly lately, so I thought this might help. Sorry for sounding like a noob :/ I just need clarification :)
 

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