Use this guide to remove or replace the logic board in an iPhone 15.
If the battery is swollen, take appropriate precautions and follow this guide to replace it.
Due to Apple's parts pairing restrictions, much of your iPhone's functionality depends on the logic board. If you use all genuine parts, run Apple's Repair Assistant (introduced in iOS 18) to avoid any issues. Otherwise, to retain full functionality, you must also replace the following parts with ones that are paired to the replacement logic board:
Use a P2 pentalobe driver to remove the two 7.7 mm-long screws on either side of the charging port.
Heat the right edge of the screen until it's hot to the touch.
Hold the pick with one hand and twist it to increase the gap between the screen and the frame. Release the right clip.
Insert a second opening pick to the right of the first one.
Slide the first pick back to the bottom right corner of the screen.
Slide the second pick to the top right corner of the screen to separate the adhesive.
Leave these picks inserted to prevent the adhesive from resealing.
Heat the top edge of the screen until it's hot to the touch.
Heat the left edge of the screen until it's hot to the touch.
Use the tip of an opening pick to pry up and disconnect the front sensor press connector.
Use your tri-point Y000 driver to remove the 0.9 mm-long screw securing the screen connector cover.
Use the tip of an opening pick to pry up and disconnect the screen press connector.
Heat the right edge of the back glass until it's hot to the touch.
Heat the left edge of the back glass until it's hot to the touch.
Heat the top edge of the back glass until it's hot to the touch.
Heat the top right corner of the back glass until it's hot to the touch.
Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from.
Use a tri-point Y000 driver to remove the two 1.3 mm-long screws securing the lower connector cover.
Use your tri-point Y000 driver to remove the 0.9 mm-long screw securing the middle connector cover.
Use an opening pick to pry up and disconnect the wireless charging coil and NFC connector.
Remove the back glass.
Use the tip of an opening pick to pry up and disconnect the antenna, front sensors, and front camera press connectors (three connectors in total).
Use tweezers or your fingers to pull the front camera and sensors out of their recess in the frame and remove them.
Use the tip of an opening pick to pry up and disconnect the earpiece speaker press connector.
Light adhesive secures the battery cable to the logic board.
Congratulations on completing disassembly! The remaining steps will show you how to reassemble your device.
When reconnecting press connectors, align the connector carefully over its socket and press down with your fingertip or spudger-first on one side, then the other-until it clicks into place. Don't try to force the connector into place. If you're having trouble, reposition it and try again.
Lay the adhesive next to the phone and use features like cutouts for spring contacts and the rear camera to make sure the adhesive is oriented correctly.
Your adhesive may look slightly different.
Place the middle connector cover over the wireless charging coil press connector so it slightly overhangs the slot on the logic board for the bottom clip.
Peel back the top liner and remove it.
Prop the screen up along the left edge of the iPhone frame, using a box or similar sturdy object to support the screen.
To evenly compress your iPhone and strengthen the bond of the screen to the frame, you need to account for the camera bump.
Place your iPhone screen-side-up in the lid of your box with the camera bump in its recess.
Leave the objects in place for at least thirty minutes. The lighter the objects, the longer they should be left. Ideally, leave them stacked overnight.
If you don't have the original box for your iPhone, follow the next three steps for another method to evenly compress the screen.
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