Notes From iFixit's iPhone 4S Teardown: 512 MB of RAM, New 3G Chip - MacStories
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iPhone 4S announced, available October 14th starting at $199 - The Verge
iPhone 5 Benchmarks Show Double the Speed, 1GB RAM, Dual-Core 1GHZ CPU | OSXDaily
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iPhone 5 features A6 processor and improved battery life
iPhone 4S Teardown - iFixit
Is it possible to insert an iPhone A7 chip into an iPhone 4s? - Quora
iPhone 4S Logic Board Swap Replacement Repair Guide Tutorial - YouTube
Meet The iPhone 4S–It's What's Inside That Counts
Inside Apple's iPhone 4S and its A5 CPU: 'S' is for Speed | AppleInsider
iPhone 4s - Wikipedia
Apple iPhone 4 - Specifications
The Memory Interface - Apple iPhone 4S: Thoroughly Reviewed
CPU Processor Circuit Diagram " iPhone Case for Sale by Blaacklight | Redbubble
Old iPhone 4S Repair Board – iPhone Service Malaysia
Apple iPhone 4s Teardown | TechInsights
iPhone 4S NAND replace / rework - GSM-Forum
Apple iPhone 6S A9 Processor Delivers Killer Performance In Benchmark Throwdown | HotHardware
iFixit iPhone 4S teardown confirms 512MB RAM, updated baseband | Ars Technica
Photos of iPhone 4S/5 Logic Board Suggest A5 Processor | MacRumors Forums
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