Honor 400 Pro Power and Volume Button Flex Cable Replacement
£12.49 ex VAT · UK VAT-registered company
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Royal Mail Tracked 48® · dispatched from Manchester
Delivery options
Royal Mail Tracked 48 is free on orders of £5.00 or more (£2.99 below that). Dates are estimates in working days. Orders after 4pm, at weekends or on UK bank holidays are dispatched the next working day. UK delivery only; 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 or glue applied can’t be returned.
Returns
You have 30 days from the day you receive your item to start a return. Items must be unused, unopened and in the condition they were received, with no adhesive or glue applied.
Email info@supremephoneparts.com with your order number before sending anything back. Return postage is paid by the buyer. Refunds go back to the payment method you used, usually within 10 business days. Your statutory rights are not affected. Full returns policy
07879 888826 · info@supremephoneparts.com
10am–6pm
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Product details
Everything you need to know
Button Flex Replacement
Honor 400 Pro Power and Volume Button Flex Cable Replacement
- Fits
- Honor 400 Pro
- Part
- Button Flex
- Fixes
- Stuck or dead buttons
- Fitting
- Professional install
Overview
What this Honor 400 Pro button flex is
If your Honor 400 Pro has a faulty power or volume button, this power and volume button flex cable is the part to order. Buyers typing "cheap honor 400 pro power button" or "order honor 400 pro power button" get the same item, brand new and OEM standard. Many shoppers also look for "honor 400 pro power button online". Repair counters keep a few in stock because button faults come in often. Supreme Phone Parts Ltd tests every unit before dispatch and sends it from Manchester with a VAT invoice. Royal Mail Tracked delivery in the UK is free on orders over £5.
This part replaces a damaged button flex on the Honor 400 Pro, curing dead keys, intermittent clicks and a power control that has stopped working. The result is a Honor 400 Pro that behaves as it should again. Keep the old part for comparison.
The Honor 400 Pro button flex price here is £14.99, with free Royal Mail Tracked delivery on UK orders from £5, for a new part made to OEM standard.
The pack contains the button flex cable only. Adhesive and repair tools are not included.
Compatibility
Specifications and compatibility
- Part
- Power and Volume Button Flex Cable
- Compatible with
- Honor 400 Pro
- Fixes
- Stuck or dead buttons and related faults
- Does not fix
- A faulty battery, screen faults, software problems or motherboard faults
- Quality
- New replacement button flex, OEM standard
- Brand
- Unbranded, made to fit the Honor 400 Pro
- In the box
- 1 × button flex cable
- Installation
- Professional installation recommended
- Condition
- Brand new, tested before dispatch
- Supplied by
- Supreme Phone Parts Ltd, Manchester, UK
Before you order
Is this the right button flex?
Signs it needs replacing
- The power or volume button is stuck, loose or does not click
- The button works only some of the time
- The device will not turn on or keeps rebooting from a worn power key
- A button has been damaged by a drop or by liquid
Check before ordering
- Confirm your device is the Honor 400 Pro. Check Settings › About phone, or the model label, before ordering
- Make sure it is not a similarly named model, as other variants can use different parts
- Confirm which buttons you need (power, volume or both) as listed in the title
- Line up a repair shop or technician before the part arrives
Professional installation
How a technician fits this button flex
- Power the device off and open it using the method for your model.
- Disconnect the battery before touching any internal parts.
- Disconnect the button flex connector and lift out the old flex or buttons.
- Fit the new part, reconnect it and reconnect the battery.
- Test each button and the power-on function before closing the device.
Take the Honor 400 Pro apart carefully, disconnect the battery first and compare the new flex with the old one. Take photos as you go so reassembly follows the same order. Test every function before the final reassembly. If in doubt, have it fitted by a professional. Check that the part matches your device before fitting it or removing any adhesive backing. Parts with adhesive or glue applied can’t be returned for a change of mind. Faulty parts are always covered.
FAQ
Frequently asked questions
Does this power and volume button flex cable suit the Honor 400 Pro?
The power and volume button flex cable is listed for the Honor 400 Pro. Other models are not named as compatible, so confirm your model number before you order and contact us if you want a second opinion.
How much does a Honor 400 Pro power and volume button flex replacement cost in the UK?
The price is £14.99 for the brand new power and volume button flex cable. UK orders from £5 ship free by Royal Mail Tracked. Any fitting charge comes from your repairer and is not included here.
Can I fit the Honor 400 Pro power and volume button flex myself?
A confident repairer can do this at home, but professional fitting is recommended for the Honor 400 Pro. In outline: power off, disconnect the battery, open the device, swap the old flex for the new one and test before closing up.
Is the power and volume button flex cable for the Honor 400 Pro brand new?
Yes. It is brand new and made to OEM standard quality, and each part is tested before dispatch. Supreme Phone Parts Ltd is an eBay Top Rated seller with 99.5% positive feedback. Parts are packed in Manchester.
How fast is delivery for the Honor 400 Pro power and volume button flex?
Yes. Order the power and volume button flex cable before 4pm Monday to Friday and it leaves our Manchester base the same day. Royal Mail Tracked delivery is free on UK orders from £5.
Can I return the Honor 400 Pro power and volume button flex if I change my mind?
We accept returns of unused parts within 30 days. Fitted or damaged parts cannot be accepted, so check the Honor 400 Pro model number before you start the repair.
How much is delivery and how long does it take?
UK delivery is free with Royal Mail Tracked on orders over £5, sent from Manchester. Orders placed before 4pm on a working day, Monday to Friday, are dispatched the same day, and delivery usually takes 2–3 days.
What if it does not work or does not fit?
You have 30 days from receipt to start a return. The part must be unused, with no adhesive or glue applied. Test the part before final installation. Email us with your order number before sending anything back. Return postage is paid by the buyer, and your statutory rights are not affected.
Is this the same as a branded button flex?
No. This is an unbranded part made to fit the Honor 400 Pro, built to OEM standard. It is not sold as a manufacturer-branded part.
Related
More parts for your Honor 400 Pro and similar repairs
Complete the Honor 400 Pro repair
Other button flex replacements
- Honor 400 Power and Volume Button Flex Cable Replacement
- Honor 400 Pro Power & Volume Button Flex Cable Replacement Part
- Honor 50 Pro Power & Volume Button Flex Cable Replacement Part
- Honor 6A Power & Volume Button Flex Cable Replacement Part
Browse the full range: Honor Parts · Buttons & Flex Cables.
Prepared by the Supreme Phone Parts team, Manchester. Last updated October 2026.
Delivery
Tracked UK delivery from Manchester
Same-day dispatch
Order by 4pm, Mon–FriOrders placed before 4pm on a working day leave us the same day. Later orders, weekends and UK bank holidays go out the next working day.
Royal Mail Tracked 48®
Free on orders of £5 or more£2.99 on orders under £5. Usually delivered within 2 working days of dispatch.
Royal Mail Tracked 24®
£3.86Usually delivered the next working day after dispatch.
Special Delivery Guaranteed by 1pm®
£9.99Guaranteed delivery by 1pm the next working day. Choose it at checkout.
UK delivery only. Your tracking number is emailed when the order is dispatched. Final delivery options and prices are shown at checkout.
Returns
30 days to return an unused part
- 30 days to start a return, counted from the day you receive your order
- Items must be unused, unopened and in the condition you received them, with no adhesive or glue applied
- Email info@supremephoneparts.com with your order number before sending anything back
- Return postage is paid by the buyer
- Refunds go back to the payment method you used, usually within 10 business days
- No direct exchanges: return the item, then place a new order for the part you need
Your rights: your statutory rights are not affected. Read the full returns policy
About Supreme
Why repairers buy from us
- eBay Top Rated sellerTrusted by UK repairers
- Real Manchester shop33 Moulton Street, Cheetham Hill
- VAT registeredVAT invoice with every order
- Tested before dispatchBrand new, OEM-quality parts
- Free tracked deliveryRoyal Mail, UK orders of £5 or more
- 30-day returnsSimple, clear returns on unused parts
eBay feedback
Trusted by repairers on eBay
111K items sold · 4.7K followers · updated 4 Oct 2026
99.5%
positive feedback, last 12 months
- Positive
- 26,572
- Neutral
- 95
- Negative
- 123
Detailed seller ratings · average out of 5
Latest positive feedback
-
Excellent eBay transaction from start to finish. The product is fantastic and was exactly as described in the listing. It was offered at a very good price and represents great value for money. Delivery was extremely fast and the item was well packaged, arriving safely and in perfect condition. Communication and service were also excellent. Very happy with the purchase and I would have no hesitation in buying from this seller again. Highly recommended!
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s***sPast monthVerified purchase
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Perfect transaction! The item was exactly as described. Excellent communication with the seller. Fast and reasonably priced postage, and the packaging was very secure. Highly recommended!
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e***gPast 6 monthsVerified purchase
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Screen arrived in great condition with excellent packaging. Unfortunately I damaged the screen during installation! Before I'd realised it was my fault and had messaged for a return, the seller responded quickly and positively showing great customer service. Delivery time was as advertised too.
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a***rPast 6 monthsVerified purchase
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Good quality audio lead in retail packaging arrived in stout card envelope. Lead ordered midday Monday, delivered Wednesday morning by Royal Mail. Highly recommended seller.
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d***aPast 6 monthsVerified purchase
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Very professional and trustworthy seller. The item was exactly as described, with great quality, excellent condition, and very good value for the price. Shipping was fast and the item arrived well packaged and in perfect condition. Communication was clear and the entire transaction went smoothly from start to finish. It was truly a pleasure doing business with this seller. I would gladly purchase from them again and highly recommend them to anyone looking for a reliable seller.
Quality - GreatFor Xiaomi Redmi Note 10 4G/Note 10S 6.43″ LCD Display Touch Screen Assembly -UK
l***dPast yearVerified purchase
-
Item arrived promptly which is always the case with this seller. And as usual well packaged. Sadly the postal service mishandled it and may have caused the failur eof the unit. Seller made instant refund. Decent communications too when i am sure they have a ton of orders to juggle. I have no issue recommending them and have now had half a dozen digitisers and all te others worked so far.
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Comments are a selection of recent positive feedback left on eBay (up to 6; 3 on small screens). Neutral and negative ratings are counted above; the full record is on eBay.
Phone repair parts from a real UK business
Supreme Phone Parts Ltd ships phone repair parts across the UK from Cheetham Hill, Manchester.
- Company
- SUPREME PHONE PARTS LTD
- Address
- 33 Moulton Street, Cheetham Hill, Manchester M8 8FQ
- Phone
- 07879 888826
- Companies House
- 15431805
- VAT number
- GB 477283552
- eBay
- Top Rated UK seller