20 - 30 minutos
I have an old iPhone 3Gs that has been lying around since I upgraded. Just sitting around and the battery would waste away. Then one day there was hope for it ATT would unlock the phone. Just in time for the Battery to no longer respond to being connected to a charger. I thought all hope was lost..
Got the battery and in no time it was in and powered up like it's old self. Instructions were great. Need to sell some magnification reading glasses.. Glad I had some lying around.
Read step 6 fully before doing it. The caution I needed to read was the last step * Please Note in the instruction.. I nearly damaged the connection that the ribbon cable slides into as it wasn't the kind that flips up.