If your Samsung Galaxy S25 FE only charges at specific angles, fails to recognize the cable, or cannot maintain its 45W fast charging speeds, the USB-C port might be damaged. Replacing the charging port daughterboard is a reliable way to restore proper power delivery and data transfer capabilities. This procedure requires removing the glass back cover and the lower speaker assembly to access the sub-board.
Required Tools
- 1
Power off and remove the SIM tray
- Turn off your Galaxy S25 FE completely before beginning the repair.
- Use a SIM eject tool to remove the SIM card tray from the bottom edge of the phone.
- This prevents the tray from catching on the motherboard during disassembly.
- 2
Heat the back cover
- Apply heat to the edges of the back glass using a heat gun or iOpener to soften the adhesive.
- Keep the heat moving constantly to avoid burning the internal components or cracking the glass.
- The edges should be warm to the touch but not too hot to handle.
- 3
Slice through the adhesive
- Apply a suction cup to the lower half of the back cover and pull up gently to create a slight gap.
- Insert a plastic opening pick into the gap and slide it around the perimeter of the phone to cut the adhesive.
- Leave picks in the corners to prevent the glue from resealing.
- 4
Remove the back cover
- Once all the adhesive is cut, carefully lift the back cover away from the device.
- Set it aside in a safe place to avoid scratching the camera lenses.
- Clean off any residual glue from the frame using isopropyl alcohol and a plastic scraper.
- 5
Disconnect the wireless charging coil
- Use your Phillips #00 screwdriver to remove the screws securing the wireless charging coil and NFC antenna assembly.
- Gently pry up the plastic bracket with a spudger and disconnect the battery flex cable first to ensure safety.
- Then disconnect the wireless charging coil and remove the assembly.
- 6
Remove the lower speaker module
- Locate the loudspeaker assembly at the bottom of the phone covering the charging port.
- Remove the Phillips screws holding it in place.
- Pry the speaker module up and out of the chassis to expose the USB-C daughterboard.
- 7
Disconnect the sub-board cables
- Use a plastic spudger to carefully disconnect the main flex cable and the display flex cable from the charging port board.
- Disconnect the coaxial antenna cables using tweezers by gently lifting them straight up from their sockets.
- Be extremely gentle to avoid bending the delicate pins.
- 8
Extract the old charging port
- Remove the single Phillips screw securing the USB-C daughterboard to the frame.
- Insert a spudger under the board and gently pry it up to remove it from the phone.
- Ensure no small rubber gaskets or microphone meshes are left behind or damaged.
- 9
Install the new charging port
- Place the replacement USB-C daughterboard into the bottom of the chassis and align the port with the frame cutout.
- Secure it with the Phillips screw.
- Reconnect the coaxial antenna cables and press down the main flex cables until they click firmly into place.
- 10
Reassemble the phone
- Reinstall the lower speaker module and secure it with its screws.
- Reconnect the battery cable, followed by the wireless charging coil assembly, and screw it down.
- Apply new pre-cut adhesive to the edges of the frame, press the back cover firmly into place, and insert the SIM tray.
Disclaimer: repairs are done at your own risk. Devices contain batteries and live components; improper handling can cause injury or fire. For a safe, warrantied repair, contact us.
FAQ
Why is my phone still not charging after replacing the port?
The issue might be a faulty main flex cable connecting the sub-board to the motherboard, or a degraded battery. Double-check all cable connections to ensure they are seated properly.
Can I use liquid glue to seal the back cover?
It is highly recommended to use pre-cut adhesive strips designed for the Galaxy S25 FE. Liquid glues can seep into the internal components and cause permanent damage to the motherboard or battery.
Will my phone still be waterproof after this repair?
Opening the device breaks the factory water resistance seal. While applying new adhesive helps protect against dust and minor splashes, you should no longer submerge the phone in water.
Do I need to transfer the microphone from the old board?
Most replacement daughterboards for this model come with a new microphone pre-installed. Always compare your new part with the old one to ensure all necessary components are present before installation.
Professional Device Repair vs. DIY Guides
While our step-by-step guides are perfect for troubleshooting minor issues at home, complex hardware faults require expert intervention. If you are facing critical issues, choosing a professional phone repair Slovenia or laptop repair Slovenia service ensures your device is handled safely without risking further damage.
Why Choose KRON Servis for Your Tech Repairs?
At KRON Servis, we repair over 3,284 devices every month with an outstanding customer rating of 4.9/5. Whether you need a reliable phone repair Ljubljana or comprehensive servicing for consoles, TVs, and smart mobility, our certified technicians are here to help. We operate in two convenient locations: Zagrebška cesta 83a in Maribor and Vilharjeva cesta 29 in Ljubljana, open Monday to Friday from 8:00 to 16:00.
We use high-quality OEM parts and offer a 12-month warranty on all repairs. Professional diagnostics are available for 25 € (VAT included). Avoid the risks of DIY mistakes and let our experts restore your device. For more details on our rates, visit our pricing page, check our services, or contact us directly at questions@kron.si or via our contact form. You can also track your device anytime on our repair status page.