iOS 4 is the first firmware in which Apple has completely cut off the support for aging original iPhone EDGE and iPod touch first-generation. Their decision of course is justified because of the low RAM found in these first-gen devices which were released back in 2007. But all is not lost as the iPhone jailbreak community has now come up with a mod, which brings the complete look and feel of iOS 4 (formerly iPhone OS 4) for iPhone 2G. The mod is basically based on the iPhone OS 3.1.3, to replicate the experience of iOS 4 on iPhone 2G (EDGE).
A group of hackers are working on bringing iPhone OS 4 over to the original iPhone EDGE (aka iPhone 2G) which was released back in 2007. Due to low memory and slower processing power, Apple decided to cut further upgrade support path for iPhone 2G in OS 4. The original iPhone EDGE users enjoyed all the firmware upgrades for free up to iPhone OS 3.1.3.
It was only iPhone 3GS which allowed video recording and editing along with sharing of your videos with your friends and family. iPhone 3G and 2G could do such stuff only if you jailbreak it, and then install an app like Cycorder from Cydia. But the good news is that Apple has now finally approved iVideoCamera app on the App Store. This app permits recording of videos on any iPhone, including 2G and 3G without having to jailbreak your iPhone.
Battery Percentage meter option is officially available on iPhone 3GS only running firmware 3.0 and above; however, there is a small tweak available in Cydia which can enable this functionality natively on the original iPhone and iPhone 3G running firmware 3.0 and above. You will need to have a jailbroken iPhone for this to work.
Complete step by step guide on how to enable the hidden Camera Roll, Video Editing capabilities and Video uploading to YouTube options of iPhone 3GS in your iPhone 3G and iPhone 2G.
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