– iPhone 3GS Back Case / Housing Replacement Directions. These iPhone replacement parts are available at These are step by step on how to replace the iPhone 3GS rear housing. This is part of the complete guides to taking apart your iPhone 3GS and Smartphone units. For % off your first order on our webpage use coupon code YOUTUBE7 at checkout for a limited time only. These directions will help you replace the broken or scratched iphone 3gs back cover. This is not an easy repair for the iPhone 3GS and you need to keep track of the screws when you take the iPhone 3GS case apart.

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