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The power button on my iPhone 4s is stuck or don’t work/broke. I have my old iPhone 4 and am wondering if i can take the button out of that and put it in the 4s to get it to work? I have all the proper tools for the job but i have yet to order any parts as i was hoping what i needed would be there in the 4. Any suggestions or recommendations? THANK YOU ALL IN ADVANCE.

Your problem is most likely not the physical button but the flex cable. The flex cable for the power buttons are not interchangable.

The power button of iPhone 4 is compatible with iPhone 4s. You need this set of iphone case opening tools.