I want to downgrade my iPhone 4 running on ios 7.1.1 and I have no PC so?

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Don

So, you can't, too many restrictions on the phone itself(get an android)

Nisia

So what? I downgraded my Trabant to a Space Shuttle without butter. R u Mad bro?

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IPhone app that coaches running? Or how to improve running pace? I'm searching for an iPhone app that will help me improve my running pace. I'm looking for an app that when you run, it tells you to run faster or slower according to the running pace you chose before starting to run! Or if you know another way to improve your running pace please tell me: P
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