Official iPhone 4 / 4S Battery Replacement Video & Instructions - iCracked.com - YouTube
Looking inside an iPhone 4/4S battery | Rip It Apart - Jason's electronics blog-thingy
How To Easily Remove, Install & Replace an Apple iPhone 4S Battery (Video) - HighTechDad™
A video that disassembled the 'iPhone 14 Pro Max' immediately appeared, and the high-performance camera module and large-capacity battery were naked - GIGAZINE
How To: Replace the Battery on your iPhone 4s! - YouTube
How To Easily Remove, Install & Replace an Apple iPhone 4S Battery (Video) - HighTechDad™