For Samsung Galaxy A40 A405 Replacement Home Button With Fingerprint Reader (Black) The Repair Plus
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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 fingerprint reader button for Samsung Galaxy A40 (A405) in Black restores fingerprint unlocking on the Samsung Galaxy A40 (A405) when the sensor is scratched, cracked or not recognised. This black button is brand new, OEM standard, tested before dispatch and shipped the same day from Manchester when you order before 4pm, Monday to Friday.
Key features
- Colour matched: Black to blend in with a black Samsung Galaxy A40.
- Brings back secure unlocking: re-register your fingerprints once fitted.
- Made for the A405: shape and connector to suit this model.
- No soldering: the flex clips on to the main board.
- Trade ready: a quick, low-cost repair for shops and DIY users.
Specifications
| Part | Home button with fingerprint reader |
|---|---|
| Colour | Black |
| Compatible model | Samsung Galaxy A40 (A405) |
| Condition | Brand new |
| Quality | OEM standard |
| Dispatch | Same day before 4pm, Monday to Friday, from Manchester, UK |
| Returns | 30 days |
Compatibility
Fits the Samsung Galaxy A40 (A405) only. It does not fit the Galaxy A30 (A305) or Galaxy A41, which use different parts. Check your model number in Settings > About phone before ordering, and pick the black version if your phone is black.
Why re-register your fingerprints
A new sensor reads your finger slightly differently from the old one. Delete old fingerprints and add them again in Settings > Biometrics and security > Fingerprints. If the phone reports no sensor at all, check the flex connector is fully seated.
Why buy from The Repair Plus
- Order before 4pm, Monday to Friday, and it leaves us the same day.
- All stock held in the UK and shipped from Manchester.
- Each part is checked before it is packed.
- 30-day returns on every order.
- Used by DIY repairers and repair shops across the UK.
Frequently asked questions
Will this fingerprint button fit my Galaxy A30 (A305)?
No. It is made for the Samsung Galaxy A40 (A405) only.
Do you sell other colours for the Galaxy A40?
Yes. This listing is black. We also list blue and white versions for the A405.
Why does my phone say the fingerprint sensor is not working?
This is often a damaged sensor or a loose flex. Replacing the button fixes a failed sensor; reseat the flex if the fault began after a repair.
How fast will it arrive?
Order before 4pm on a weekday and it leaves our Manchester warehouse the same day.

