For Samsung Galaxy M31 (SM-M315) Signal Cable
£1.58 ex VAT · UK VAT-registered company
Buy more, save more
Mix any partsAdd 1 more item to save 3% — mix any parts.
Complete the repair
Fits Galaxy M31Buy with Shop buys this part only. Use Add to cart or Buy it now to include the parts you ticked.
Add £3.11 more for FREE Tracked 48 delivery
Secure, encrypted checkout
Same-day dispatch on orders before 4pm, Mon–Fri
Royal Mail Tracked 48® · dispatched from Manchester
Delivery options
Dates are estimates in working days. Orders after 4pm, at weekends or on bank holidays are dispatched the next working day. Final options and prices are shown at checkout.
Fitting advice
Phone parts are delicate. We recommend fitting by a qualified repair technician.
Test the part before final installation, before any adhesive or seal is applied. Parts with adhesive applied can’t be returned for change of mind.
Returns
You have 30 days from the day you receive your item to request a return. Items must be unused, in the condition and packaging they were supplied in, with proof of purchase.
Please contact us before sending anything back. Return postage is the buyer’s responsibility unless the item is faulty. For faulty or incorrectly described items, we cover return postage in full. Approved refunds go to the payment method you used within 10 business days. Your statutory rights are not affected.
0161 425 8273 · support@etech61.com
Mon–Fri 10am–6pm
More Galaxy M31 parts
View all Galaxy M31 partsMix any parts: 2+ items save up to 10%
-
Charging Port Flex Cable Charging Port Board
£4.89 -
Flex Cable Antenna Connecting Cable
£1.39 -
Power & Volume Button Flex Cable Power and Volume Button Flex Cable
£1.89 -
Internal Component Vibrating Motor
£1.89 -
SIM Card Tray SIM Card Tray (Black)
£3.49 -
Battery Replacement Battery 6000mAh
£7.89 -
Screen Assembly OEM Standard Screen Assembly with Frame – GH82-22405A (Black)
£69.99 -
SIM Card Tray SIM Card Tray (White)
£3.49 -
Power & Volume Button Flex Cable Power Button (Blue)
£1.89 -
Power & Volume Button Flex Cable Power Button (Black)
£1.89 -
Power & Volume Button Flex Cable Power Button (Red)
£1.89 -
Power & Volume Button Flex Cable Power Button (White)
£1.89
Product details
Everything you need to know
- Fits: Samsung Galaxy M31 (SM-M315)
- Part: Signal Cable
- In the box: 1 × signal cable
- Dispatch: Same day from Manchester, UK, on orders before 4:00PM Mon–Fri
- Returns: 30 days on unused items
Product Description
This signal cable is a replacement for the Samsung Galaxy M31 (M315), listed on its own for repairs where the existing cable has been damaged. It is a different part from the M31 antenna connecting cable that is sold separately.
A damaged signal cable can affect mobile or wireless reception on the M31. Replacing the cable is a small, focused repair, and it is worth confirming the fault before opening the phone.
Key Features & Highlights
Compatibility
- Samsung Galaxy M31 (SM-M315)
Signs Your Flex Cable Needs Replacing
- A function linked to the flex (such as display signal, charging, buttons, signal or sensors) stops working or cuts in and out.
- The fault appears after a drop, liquid exposure or a previous repair.
- The flex is visibly torn, creased or has a damaged connector.
- The problem changes when the phone is pressed or flexed.
- Before replacing, reseat the connectors — a loose connector can cause the same symptoms.
How to Check Your Model Number
On the phone or tablet go to Settings › About phone (or About tablet). The model number starts with SM- (for example SM-A145R). It is also printed on the box the phone came in.
Specifications
- This listing is for the signal cable only; other parts shown in a M31 are not part of it.
- The M31 must be opened to fit this part, which takes heat and careful prying.
- Take care not to pinch or kink the cable when routing it and closing the phone.
- Disconnect the battery before unplugging anything, then test the M31 before sealing it.
- Replacement parts are model-specific — check that your device matches the model shown above before ordering.
- Professional fitting is recommended where the device has to be opened; flex cables and connectors are easily damaged.
- Test the part before sealing the device or applying new adhesive.
- If you are unsure which part you need, contact us with your model number before ordering.
Frequently Asked Questions
What is the signal cable on the M31?
The M31 signal cable is a cable inside the Samsung Galaxy M31 that carries antenna signal. This listing supplies a replacement for it.
When should I replace the M31 signal cable?
It is the part to look at when the M31 has weak mobile or wireless reception and the signal cable is damaged. Check the cable itself before ordering.
Is this signal cable made for the Samsung Galaxy M31 (M315)?
Yes, this signal cable is listed for the Samsung Galaxy M31 (model M315). Check the model number in Settings › About phone before ordering, as similar-looking Galaxy phones use different cables.
Do I need to open my M31 to fit this signal cable?
Yes. The Samsung Galaxy M31 has to be opened with heat and careful prying to reach the old cable. If you are unsure, ask a repair professional to fit it.
Should I test the M31 before sealing it?
Yes. With the new signal cable connected, power on the Samsung Galaxy M31 and check that everything works before the back is stuck down.
How quickly will my order be dispatched?
Orders paid before 4:00PM Monday to Friday are dispatched the same day from our Manchester warehouse. Orders placed later, at weekends or on bank holidays go out the next working day.
How much is UK delivery?
Royal Mail Tracked 48 is free on UK orders of £5 or more (£2.49 below that). Royal Mail Special Delivery Guaranteed by 1pm is available at checkout, and you can also collect from our shop at 33 Moulton St, Manchester M8 8FQ.
Can I return it if it is not right?
Yes. You have 30 days from delivery to return an unused item in the condition it was supplied in. Please contact us before sending anything back. Your rights under the Consumer Rights Act 2015 are not affected.
Delivery
Fast, tracked delivery from Manchester
Same-day dispatch
Order and pay before 4pm, Monday to Friday, and it leaves us the same day. Later orders, weekends and bank holidays go out the next working day.
Royal Mail Tracked 48®
Free on UK orders of £5+Tracked to your door. £2.49 on orders under £5.
Special Delivery by 1pm®
From £7.99Guaranteed next working day by 1pm (UK). Choose it at checkout.
International Tracked
£9.99To selected countries in Europe, the US, Canada, Australia and New Zealand. Not available for every part — your options show at checkout.
Local pickup
Collect from 33 Moulton St, Cheetham Hill, Manchester M8 8FQ. Usually ready within 24 hours — we’ll email you when it’s ready.
Returns
30 days to change your mind
- 30 days to request a return, from the day you receive your item
- Item unused, in the condition and packaging it was supplied in, with proof of purchase
- Contact us before sending anything back — unauthorised returns can’t be accepted
- Approved refunds go to the payment method you used within 10 business days
- Test the part before final installation — adhesive applied voids a change-of-mind return
- Return postage is paid by the buyer unless the item is faulty
Your rights: as a UK business we always uphold the Consumer Rights Act 2015 and the Consumer Contracts Regulations 2013. For faulty or incorrectly described items, we cover return postage in full. Read the full refund policy.
Phone repair parts, from a real UK business
E-Tech61 Ltd is a Manchester-based supplier of phone, tablet and tech repair parts to DIY fixers and repair shops across the UK.
- Company
- E-Tech61 Ltd
- Companies House
- 08915335
- VAT number
- GB 209 379 096
- Phone
- 0161 425 8273
- support@etech61.com
- Hours
- Mon–Fri, 10am–6pm