iPhone 4s wont boot after battery replace… - Apple Community
Repairing iPhone 4s doesn't turn on, doesn't charge - battery recover (How to) [Do it yourself] - YouTube
Help] iPhone 4s 32gb iOS 8 Jailbroken after restart automatically set it time to the epoch and disabled, Is there any way to unlock it wothout losing data? : r/jailbreak
How to Fix iPhone 4S Battery Life
iPhone 4s battery repair guide | iDoc
iPhone 4s wont boot after battery replace… - Apple Community
How To: Replace the Battery on your iPhone 4s! - YouTube