Samsung Galaxy S25 Ultra Rear Camera Replacement

Replace the rear camera module if your phone suffers from persistent focus hunting, optical image stabilization buzzing, cracked sensor glass, or a black viewfinder preview. Mechanical shocks from hard drops frequently damage the delicate voice-coil actuators or misalign the periscope telephoto prism. This guide walks you through safely opening the titanium frame, isolating power, and replacing the faulty camera module to restore crisp photo and video capture.

1. 1

   Power Off and Prepare the Chassis

   • Shut down the smartphone completely, eject the SIM card tray, and remove the embedded S-Pen from the lower edge.
   • Put on safety glasses and set up an ESD-safe workspace to prevent static electricity from damaging exposed electronic components.
2. 2

   Heat the Rear Glass Panel

   • Warm the perimeter of the back glass using a heat gun set to 75-80°C for approximately two to three minutes to soften the factory adhesive.
   • Move the heat source continuously to avoid scorching the glass coating or overheating the internal lithium-ion battery.
3. 3

   Slice the Perimeter Adhesive

   • Attach a suction cup near the bottom edge of the back panel and apply firm upward tension to create an opening slit.
   • Slip a thin plastic pick into the seam, slicing carefully around the edges while keeping the pick depth under 4 mm to prevent contact with internal flex cables.
4. 4

   Lift and Separate the Back Glass

   • Gently pry open the rear glass once all four adhesive borders are severed, lifting it free from the titanium chassis.
   • Place the glass panel in a clean, dust-safe area so that the internal lens covers remain spotless.
5. 5

   Remove the Upper Midframe and Wireless Coil

   • Extract the Phillips #00 screws holding down the top motherboard shield and integrated wireless charging coil.
   • Carefully lift the bracket assembly away from the phone, freeing the attached graphite cooling sheet without tearing it.
6. 6

   Disconnect the Battery

   • Use the flat edge of a non-conductive plastic spudger to pry the battery flex connector directly upward from the logic board.
   • Disconnecting power immediately neutralizes the risk of electrical shorts while handling delicate camera circuitry.
7. 7

   Detach the Target Camera Flex Cable

   • Identify the malfunctioning camera module (such as the main wide, ultrawide, 3x telephoto, or 5x periscope unit) and pop its press-fit connector loose with a plastic spudger.
   • Always pry straight up from the board to avoid tearing pins or knocking off tiny surface-mount components.
8. 8

   Remove the Defective Camera Module

   • Gently lift the faulty camera out of its frame pocket using blunt plastic tweezers or your spudger.
   • If light adhesive or thermal material underneath resists, apply slow, steady upward leverage rather than twisting the sensor body.
9. 9

   Install the Replacement Camera

   • Drop the new camera module into place, aligning it squarely over the frame locating pins without touching the exposed optical lenses.
   • Align the press-fit ribbon connector above the socket and press down firmly until it snaps into position.
10. 10

    Perform a Mid-Assembly Functional Test

    • Reattach the battery cable temporarily, lay the wireless charging pad in position, and boot up the phone.
    • Open the camera application or enter the hardware diagnostic menu (*#0*#) to verify focus, image stabilization, and zoom switching before finalizing the repair.
11. 11

    Clear Residual Adhesive and Lay a New Gasket

    • Power down the phone, unplug the battery, and clean all remaining adhesive residue off the frame perimeter using 99% isopropyl alcohol.
    • Apply a genuine, pre-cut adhesive gasket evenly along the frame borders to restore liquid and dust resistance.
12. 12

    Reassemble and Seal the Housing

    • Reconnect the battery, replace and secure the upper midframe bracket screws, and align the back cover over the chassis.
    • Press firmly along all outer edges, then place the device under light, uniform clamping pressure for twenty minutes to achieve a complete bond.