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You can buy the iPhone 4S parts and repair tools here:
1. iPhone 4S Ear Speaker: www.etradesupply.com/oem-apple...
2. iPhone 4S Ear Speaker with Sensor Flex: www.etradesupply.com/oem-apple...
3. iPhone 4S replacement parts: www.etradesupply.com/apple/iph...
4. Repair tools: www.etradesupply.com/accessori...
(If you buy parts from any of the above links, I can get small commission.)