Updating iphone 3g to 4

Technically, it’s not possible to unlock an i Phone that has been updated to i OS 4.1 because there is no unlock available for the i OS 4.1 baseband.

Now depending on your situation, there might be a way to unlock your i Phone.

Hard resetting your i Phone can speed it up for a while.

Here’s how to do it: This works because it clears your i Phone’s memory completely, but this is less of a permanent solution than disabling Spotlight since caches and memory will inevitably be full again.

Preparing to Jailbreaki OS 10 - 10.2i OS 10 - 10.1.1 (i Phone 7( ))i OS 9.0 - 9.3.3i OS 8.0 - 8.4i OS 7.1 - 7.1.2i OS 7.0 - 7.0.6Community Q&A This wiki How teaches you how to install the software needed to jailbreak your i Phone.

Jailbreaking your i Phone allows you to install apps and tweaks that aren't allowed in the Apple App Store, which gives you more control over your i Phone but is frowned upon by Apple.

There are some rumors (ie: wishful thinking) swirling that when i OS 4 for i Pad is released and the i OS 4 versions are bridged in i OS 4.1 (or whatever the version ends up being), that the performance will improve on i Phone 3G.

I’m not counting on that and here’s why: the i OS 4.1 beta is already available for download and people have put it on their i Phone 3G to practically no avail.

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It’s no wonder they left out multitasking and background pictures, but even without those features it just doesn’t run well on the older and slower hardware of the 3G.I don’t like this solution much because you lose your backups, but it does seem to help i OS 4 run a bit better on the i Phone 3G.Basically you’re just doing a clean i OS 4 install on the i Phone, but then you are left with an empty phone.tel://NUMBER will pop up a dialog asking if you wish to make a cellphone call to NUMBER using the baseband.facetime://CONTACT will pop up a dialog asking if you wish to make a video call to CONTACT using Apple's Facetime over Wi-Fi.

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