For Xiaomi POCO F3 5G / Redmi K40 Main Motherboard Connector Flex Cable
£2.84 ex VAT · UK VAT-registered company
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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
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Product details
Everything you need to know
- Fits: Xiaomi POCO F3 5G / Redmi K40
- Part: Main Motherboard Connector Flex Cable
- In the box: 1 × main motherboard connector flex cable
- Dispatch: Same day from Manchester, UK, on orders before 4:00PM Mon–Fri
- Returns: 30 days on unused items
Product Description
This main motherboard flex cable is a replacement for the Xiaomi POCO F3 5G and the Redmi K40. Display disconnections, connectivity problems and features that stop responding are the faults the listing associates with a damaged cable like this one.
It is an internal part, so the POCO F3 5G or Redmi K40 has to be opened, and the flex should be lifted out gently. Compare the new flex with the old one before fitting, so the routing and connector ends look alike on your POCO F3 5G or Redmi K40.
Key Features & Highlights
Compatibility
- Xiaomi POCO F3 5G
- Redmi K40
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 most Android phones go to Settings › About phone to see the exact model name and model number. Match it to the model shown on this page before ordering.
Specifications
- Professional installation is recommended for the POCO F3 5G and Redmi K40.
- Only the flex cable is listed; tools and other parts are not included.
- Handle the flex gently and test the phone 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 main motherboard flex cable for the POCO F3 5G?
It is an internal main motherboard flex cable for the Xiaomi POCO F3 5G, and the same listing names the Redmi K40.
Does this flex suit both the POCO F3 5G and the Redmi K40?
Yes. The listing names the Xiaomi POCO F3 5G and the Redmi K40. Check your model number in Settings before ordering.
What symptoms can a damaged POCO F3 5G motherboard flex cause?
The listing mentions display disconnections, connectivity problems and unresponsive features on the POCO F3 5G and Redmi K40.
Do I need to open the POCO F3 5G to fit the flex?
Yes. The POCO F3 5G has to be opened with heat and careful prying, and the battery is best disconnected first.
Is professional fitting advised for the POCO F3 5G flex cable?
Professional installation is recommended for the POCO F3 5G to avoid damaging the flex.
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