For Xiaomi Redmi K40 Gaming / Poco F3 GT OEM Volume Button Flex Cable
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Discount applies at checkout on any mix of parts — ideal for repair shops.
Estimated delivery · Royal Mail Tracked 482–3 working days
- Order placedToday
- DispatchedSame day
- At your door2–3 days
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Phone parts are delicate. We recommend fitting by a qualified repair technician — damage caused during fitting is not a product fault. Need help choosing the right part? Call 07425 443625 or email info@therepairplus.com (Mon–Fri 10:00–18:00). Repair shop? Open a trade account.
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The Repair Plus volume button flex cable for Xiaomi Redmi K40 Gaming and Poco F3 GT is a brand new, OEM standard replacement flex that restores the side volume buttons when they stop responding, feel stuck or only work intermittently. It fits the Redmi K40 Gaming Edition and the Poco F3 GT, is tested before dispatch and is shipped the same day from Manchester when you order before 4pm, Monday to Friday.
Key features
- Fixes dead volume keys: replaces the internal flex that carries the volume button signals to the mainboard.
- Two-model fit: made for the Redmi K40 Gaming Edition and its global twin, the Poco F3 GT.
- OEM standard: matches the shape, contact positions and connector of the factory flex.
- Checked before dispatch: every cable is inspected before it is packed.
- Trade friendly: a low-cost part for DIY repairs and busy repair benches.
Specifications
| Part | Volume button flex cable |
|---|---|
| Compatible models | Xiaomi Redmi K40 Gaming Edition, Poco F3 GT |
| Condition | Brand new |
| Quality | OEM standard |
| Dispatch | Same day before 4pm, Monday to Friday, from Manchester, UK |
| Returns | 30 days |
Compatibility
Fits the Xiaomi Redmi K40 Gaming Edition and Poco F3 GT only. It does not fit the standard Redmi K40, Redmi K40 Pro or Poco F3, which use a different internal layout. Check your exact model in Settings > About phone before ordering.
Before you replace the flex
If the buttons feel loose or make no click, the fault may be the plastic key caps rather than the flex. If the keys click normally but the phone ignores them, the flex is the likely cause. Work slowly when opening the phone, disconnect the battery first and keep track of each small bracket and screw.
Why buy from The Repair Plus
- Same-day dispatch when you order before 4pm, Monday to Friday.
- UK stock, shipped from Manchester.
- Every part tested before dispatch.
- 30-day returns.
- Trusted by DIY repairers and independent repair shops.
Frequently asked questions
Will this fit the normal Poco F3?
No. It is made for the Poco F3 GT and Redmi K40 Gaming Edition only. The Poco F3 uses a different volume flex.
Does this flex include the power button?
This listing is for the volume button flex. Check the old part against the product photos before you order if you need the power key as well.
Is it hard to fit?
It needs the phone to be opened, so basic repair tools and some patience are needed. Repair shops can fit it quickly.
How fast will it arrive?
Orders placed before 4pm, Monday to Friday, leave Manchester the same day.

