Samsung Galaxy S25 Edge Charging Port Replacement

If your Samsung Galaxy S25 Edge is struggling to charge, losing connection when the cable moves, or failing to sync data, replacing the USB-C daughterboard is the most reliable fix. This repair is necessary when cleaning the port no longer resolves the issue or if the internal pins are visibly bent. Expect to use heat to soften the adhesive on the ultra-thin back glass, so patience is key to avoid cracking the rear panel.

1. 1

   Heat the back glass

   • Power off your phone completely before starting.
   • Apply a heat gun or heated pad to the bottom edge of the rear glass for about two minutes to soften the waterproof adhesive.
   • Do not overheat the device to prevent damage to the internal battery.
2. 2

   Create an opening gap

   • Apply a suction cup to the bottom edge of the back glass and pull up gently to create a tiny gap.
   • Insert a plastic opening pick into the gap to prevent the adhesive from resealing.
   • Avoid using metal tools here to prevent scratching the titanium frame or shattering the glass.
3. 3

   Slice the remaining adhesive

   • Slide the opening pick around the entire perimeter of the phone to cut the adhesive.
   • Reapply heat as needed if the pick encounters heavy resistance.
   • Once all sides are free, carefully lift the back cover away and set it aside.
4. 4

   Remove the lower speaker assembly

   • Locate the Phillips #00 screws securing the lower speaker and antenna assembly at the bottom of the phone.
   • Extract these screws and use a spudger to gently pry up the plastic cover.
   • Set the speaker assembly aside in a safe place.
5. 5

   Disconnect the battery

   • Safety is critical, so you must disconnect the power before touching any other components.
   • Remove the screws holding the upper motherboard shield, lift the shield, and use a plastic spudger to pry up the battery connector.
   • This prevents accidental short circuits during the rest of the repair.
6. 6

   Disconnect the flex cables

   • Locate the main interconnect flex cable and the display flex cable that route over the charging port board.
   • Use your plastic spudger to gently pop their connectors off the daughterboard and the main motherboard.
   • Fold them out of the way carefully to avoid tearing the delicate ribbons.
7. 7

   Remove the old charging port board

   • Remove the remaining Phillips screws anchoring the USB-C daughterboard to the frame.
   • Lift the board out with tweezers, being careful not to snag the small coaxial antenna cables attached to it.
   • If the board is stuck, apply a few drops of isopropyl alcohol to dissolve any underlying adhesive.
8. 8

   Install the new charging port

   • Place your replacement USB-C daughterboard into the housing and align it with the screw holes and the bottom frame cutout.
   • Secure it loosely with the screws, then reconnect the coaxial antenna cables using tweezers.
   • Tighten the screws firmly but do not overtighten.
9. 9

   Reconnect cables and battery

   • Snap the main interconnect and display flex cables back onto the new charging port board and the motherboard.
   • Finally, reconnect the battery flex cable to restore power to the system.
   • Reinstall the upper motherboard shield and screw it down.
10. 10

    Test the new port

    • Before sealing the phone, plug a USB-C cable into the new port to ensure the device charges properly.
    • Check both fast charging and data transfer functionalities if possible.
    • Once confirmed, unplug the cable and proceed to reassembly.
11. 11

    Reinstall the speaker assembly

    • Place the lower speaker and antenna assembly back over the new charging port board.
    • Press it down until it clicks into place, then reinstall all the Phillips #00 screws.
    • Ensure the assembly sits completely flush with the frame.
12. 12

    Seal the back glass

    • Clean any old adhesive residue from the frame and the back glass using isopropyl alcohol.
    • Apply a new pre-cut adhesive sheet to the frame, align the back glass carefully, and press it firmly into place.
    • Apply steady pressure with heavy books or clamps for about an hour to ensure a watertight seal.