Battery Replacement of iPhone 11

Before starting, it is necessary to discharge the iPhone below 25% because a charged Li-ion battery can ignite or explode if accidentally cut.

• Turn off iPhone
• Unscrew the two 6.7mm long pentalob screws on the bottom edge of the iPhone using a Pentalobe screwdriver (Ph0001.2).

Opening iPhone will break its waterproof seal, so have a replacement seal ready before beginning this step.  Without a new seal, your iPhone will not be waterproof.

Warming the bottom edge of iPhone helps soften the screen protector and make it easier to open.

• Using a hair dryer or heat gun, heat the bottom edge of iPhone for about 3 minutes to reach about 80 ° C.
• Do not put iPhone in the microwave !!!

• Place the suction cups near the bottom edge of iPhone, one at the front and the other at the back, and gently push it into place.
• Hold your iPhone securely and use gentle suction cups to separate the screen from the back of the phone.
• After separating the display approx. 3 mm from the back, insert the Fixservis card into the gap.

The glue that holds the display in place is very strong, thus creating this initial gap requires considerable force.  If you have difficulty, reheat the bottom edge and gently slide the screen up and down repeatedly to weaken the glue until you create a gap to insert the Fixservis card.

• Slide the Fixservis card around the lower left corner and up the left edge to release the glue holding the display.
• Repeat the same around the lower right corner and up the right edge.

Do not insert the card too deeply to avoid damaging the internal components of iPhone.

• After successfully releasing the glue from the edges, remove the suction cups.
• Open iPhone by turning the display to the left like a book.
• We recommend that you support the display so that you do not tear off the flat cable that holds the display from the system board.

For now, don't try to completely detach the display, as a few fragile flat cables still connect it to the iPhone's motherboard.

• Remove the five 1.3 mm long screws using a Pentalobe screwdriver securing the battery cover bracket and remove at the same time.

Throughout the repair, follow each screw to make sure it returns exactly where it came from to avoid damaging your iPhone.

• Remove the three 1.1 mm long screws using a Pentalobe screwdriver (Y) securing the battery connector cover and remove at the same time.

Throughout the repair, follow each screw to make sure it returns exactly where it came from to avoid damaging your iPhone.

• Use the tip of the Spudger to disconnect the battery connector on the system board from the system board.
• Bend the connector slightly away from the system board to prevent accidental contact with the outlet and power to the phone during repair.

• Disconnect the OLED panel and digitizer cable connector using the Spudger.

• Disconnect the front sensor flex cable connector using the Spudger.
• Then remove the display.

• Six pieces of stretch glue hold the battery in place - three at the top edge and three at the bottom edge.
• Each piece of glue has black gluten at one end, which is easily glued and folded to the top of the battery.

• The battery is attached to the back case with six pieces of adhesive clips - three near the bottom edge of the battery and three at the top.
• Each gluten has one or two black pull-out tabs at the end that are slightly glued to the side edges of the battery.
• Using blunt tweezers, grasp the tabs at the same time and slowly pull the adhesive away from the battery.
• Repeat this process from all sides.

• Remove the battery.

• Peel off the blue plastic sheet from the new set of adhesive tapes and discard.
• Carefully place the adhesive tapes on the battery and stick them in place as shown.
• Use your fingers or a cloth to firmly press the strips into place on the battery.
• Press the center to attach the black control label to the battery as well.

• Carefully insert the battery into the iPhone.
• Make sure the battery connector is in line with the system board.

• Remove the old glue along the edges of the iPhone.

• Glue a new gluten to the edges of the iPhone.
• Reconnect the battery.

The new adhesive will ensure the iPhone's resistance to water and dust.

• To reinstall, follow these instructions in reverse order.