The following guide is meant to give you a step by step instruction on how to replace a battery for your iPhone 6 Plus that is no longer holding a charge. Please be sure to take care during every step of this procedure as parts and flex cables can be easily damaged or broken. As well, you must be sure to keep track of where each screw is removed from so that when it comes time to re-install them you know exactly where to put them. When removing or lifting flex cables, it is suggest to use plastic spudgers or plastic opening and lifting tools. Before continuing it is advised to read the disclaimer at the bottom of this article.
We suggest the following parts and tools for this repair:
Remove the 3.6mm Pentalobe screws located at the bottom of the phone near the dock connector.
Secure a suction cup to the front LCD Assembly and gently pull on the assembly while using a pry tool along the bottom and sides and begin to lift the assembly away from the body of the phone.
Remove the 5 Phillips head screws near the top right of the battery which secure the metal assembly cable bracket to the phone.
Remove the metal assembly cable bracket.
Carefully disconnect the Front-Facing Camera Flex Cable, Home Button Flex Cable, LCD Flex Cable and Digitizer Flex Cable from the logic board. Lift the assembly away from the iPhone and set it aside.
Remove the two screws at the bottom right side of the battery which secure a metal plate and remove the metal battery connector plate.
Detach the battery flex cable from the logic board.
Peel back the adhesive tape from the bottom right side of the battery using low pressure at first and slowing increasing pressure until you see the white strip. Begin to pull the tape around the bottom right corner of the battery until it releases.
Do the same for the bottom left hand tape however when the tape begins to release, bring it up along the left hand side of the battery.
Finally remove the final strip of tape located in the middle, once again using light pressure and increasing slowly until it finally releases.
Remove the battery by releasing it from the adhesive backing that is securing it from the phone.
Install your new battery and proceed with the above steps in reverse order to reassemble your phone.
Disclaimer - Note that the above information is provided for informational purposes only. We take no liability in for any damage or losses that may be done as a result of in-experience. If you are not comfortable with making repairs or cannot afford the loss of your device we suggest to contact an experienced professional to complete your repair.