Motherboard Connector Flex Cable
Samsung Galaxy S26 Motherboard Connector Flex Cable Replacement
- Fits
- Samsung Galaxy S26
- Fixes
- Internal connection faults
- Quality
- Brand new, OEM quality
- Fitting
- Professional install
Overview
What this part is
Inside the Galaxy S26, flex cables carry power and signals between the main board and other parts. If a cable is torn, creased or corroded after a drop, liquid or an earlier repair, the phone can stop charging, lose display or power off at random.
This flex cable is made for the Galaxy S26 SM-S942B. Faults like these can have several causes, so a technician should confirm the cable is at fault before replacing it. Compare the part in the photos with the cable in your phone before ordering.
Compatibility
Specifications and compatibility
- Part
- Motherboard Connector Flex Cable
- Compatible with
- Samsung Galaxy S26
- Model numbers
- SM-S942B
- Does not fit
- Galaxy S26 Ultra, Galaxy S25 or any other model
- Fixes
- Faults caused by a torn, creased or damaged motherboard connector cable
- Does not fix
- Faults in the main board itself, a worn battery or a cracked screen
- Quality
- Brand new, OEM-quality motherboard connector flex cable. Tested before dispatch.
- Brand
- Unbranded, compatible with Samsung Galaxy S26
- In the box
- 1 × Galaxy S26 motherboard connector flex cable.
- Colour
- As shown in the photos
- Installation
- Professional installation recommended
- Supplied by
- Supreme Phone Parts Ltd, Manchester, UK
Before you order
Is this the right part?
Signs it needs replacing
- The cable is visibly torn, creased or burnt
- Charging or display cuts in and out when the phone is pressed
- Faults started after liquid damage or a previous repair
- The phone powers off or restarts at random
How to check your model
Open Settings › About phone. The model name should read Galaxy S26, not Galaxy S26 Ultra or Galaxy S25. The model number should read SM-S942B.
Compare the shape and connectors in the photos with the cable in your phone before fitting.
Professional installation
How a technician fits this part
- Power off the phone and warm the back glass to soften the adhesive.
- Lift the back glass and disconnect the battery before anything else.
- Remove the cover plates and unclip the old flex cable at both ends.
- Check the connectors on the board for damage, then fit the new cable.
- Reconnect the battery and test charging, display and power before sealing.
- Refit the covers and back glass with new adhesive.
Check that the part matches the device before fitting it or removing any adhesive backing. Once a part has been fitted, it cannot be returned for a change of mind. Faulty parts are always covered.
FAQ
Frequently asked questions
Will this fit my Galaxy S26?
Yes, if Settings › About phone shows Galaxy S26 with model number SM-S942B.
Does it fit the Galaxy S26 Ultra?
No. The Galaxy S26 Ultra has a different internal layout and cables.
How do I know this cable is the fault?
Look for tears, creases or corrosion on the cable, and compare it with the photos. A technician can test it, as similar faults can come from the board or battery.
Is it made by Samsung?
No. It is a brand new, OEM-quality flex cable made to fit the Galaxy S26, and every part is tested before dispatch.
Should I fit it myself?
We recommend professional installation. The back must be heated and lifted, and the small board connectors are easy to damage.
How quickly will it arrive?
Orders placed before 4pm on a working day are dispatched the same day from Manchester by Royal Mail Tracked. Delivery is free on UK orders from £5.
Prepared by the Supreme Phone Parts team, Manchester. Last updated September 2026.