Power and Volume Buttons (10 Pairs)
Huawei Mate 40 Power and Volume Buttons (10 Pairs) Replacement
- Fits
- Huawei Mate 40
- Fixes
- Broken side buttons
- Quality
- Brand new, OEM quality
- Fitting
- Professional install
Overview
What this part is
The power and volume buttons on the side of the Huawei Mate 40 are separate caps that sit in the frame over switches on a flex cable. A drop can crack, bend or knock out a cap, leaving a gap or a button that will not press.
This pack holds 10 pairs of outer buttons, which suits repair shops that fit them often. It does not include the flex cable with the switches. If the buttons are in place but do nothing, the inner flex is the more likely fault.
Compatibility
Specifications and compatibility
- Part
- Power and Volume Buttons (10 Pairs)
- Compatible with
- Huawei Mate 40
- Model numbers
- Check Settings › About phone
- Does not fit
- Mate 40 Pro, Mate 40 Pro+, Mate 40E, Mate 30 or any other model
- Fixes
- Cracked, loose or missing power and volume button caps
- Does not fix
- A faulty button flex cable inside the phone
- Quality
- Brand new, OEM-quality power and volume buttons. Tested for fit before dispatch.
- Brand
- Unbranded, compatible with Huawei Mate 40
- In the box
- 10 pairs of power and volume buttons (10 power buttons and 10 volume buttons) for the Huawei Mate 40, in black.
- Colour
- Black
- Installation
- Professional installation recommended
- Supplied by
- Supreme Phone Parts Ltd, Manchester, UK
Before you order
Is this the right part?
Signs it needs replacing
- A button cap is cracked, loose or missing
- A button is stuck down in the frame
- The buttons rattle when the phone moves
- There is a gap in the frame where a button should be
How to check your model
Open Settings › About phone. The device name should read Mate 40, not a Pro, Lite or other version. The model code is shown under Settings › About phone › Model; compare it with the photos and title before ordering.
The Mate 40 has a 6.5-inch screen and a round camera ring on the back. The Mate 40 Pro has a curved screen and is a different model.
Professional installation
How a technician fits this part
- Power the phone off and remove the SIM tray.
- Warm the glass back, open it and disconnect the battery.
- Remove the parts covering the side buttons from inside the frame.
- Take out the old buttons and place new ones in the frame openings.
- Refit the parts behind them and check each button clicks.
- Reconnect the battery, reseal the back and test power and volume.
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 Mate 40?
Yes, if Settings › About phone shows Mate 40. It does not fit the Mate 40 Pro, Mate 40 Pro+, Mate 40E, Mate 30. If you are unsure, check the model under Settings › About phone before ordering.
Does it fit the Mate 40 Pro?
No. The Mate 40 Pro has a different frame and buttons. These buttons are for the standard Mate 40 only.
Why 10 pairs?
This is a trade pack for repair shops. You get 10 power buttons and 10 volume buttons, enough for 10 repairs.
Is it made by Huawei?
No. It is a brand new, OEM-quality set of power and volume buttons made to fit the Huawei Mate 40, and it is tested before dispatch.
Should I fit it myself?
We recommend professional installation. The buttons fit from inside the frame, so the phone must be opened with heat and the battery disconnected.
How quickly will it arrive?
Orders placed before 4pm on a working day are dispatched the same day from Manchester, with free Royal Mail Tracked delivery on UK orders over £5. You can also collect from our shop at 33 Moulton Street, Manchester M8 8FQ.
Prepared by the Supreme Phone Parts team, Manchester. Last updated September 2026.