Hi surfers, it happens again. Every release of iOs run great on the last iPhone but makes previus iPhone very slow (or maybe, this is that i read on internet, because i don’t have an iPhone). This time users says that iOs 7 on iPhone4 make the smartphone SLOOOOOOOOOW, 15 seconds to open keyboard and battery overload. You want to downgrade to iOs 6? you can’t 🙁 so, how to solve the problem? simply disable “documents and data sync” in the iCloud. This will solve keyboard lag.  

iOs 7 makes your iPhone 4 very slow : how to (try) to solve it

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