For Samsung Galaxy A40 (SM-A405) Home Button with Fingerprint Reader (White)
Samsung Galaxy A40 – all parts

For Samsung Galaxy A40 (SM-A405) Home Button with Fingerprint Reader (White)

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Fits Samsung Galaxy A40

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Same-day dispatch on orders before 4pm, Mon–Fri

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Royal Mail Tracked 48® · dispatched from Manchester

Delivery options
International TrackedSelected countries in Europe, US, Canada, AU & NZ. Not available for every part – your options show at checkout£9.99
Local pickup33 Moulton St, Cheetham Hill, Manchester M8 8FQ · Usually ready within 24 hours – we’ll email you when it’s ready

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.

Not sure it fits? Ask a parts specialist

0161 425 8273 · support@etech61.com

Mon–Fri 10am–6pm

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Product details

Everything you need to know

Quick Answer — At a Glance
  • Fits: Samsung Galaxy A40 (SM-A405)
  • Part: Home Button with Fingerprint Reader
  • Colour: White
  • Colour: White
  • In the box: 1 × home button with fingerprint reader
  • Dispatch: Same day from Manchester, UK, on orders before 4:00PM Mon–Fri
  • Returns: 30 days on unused items

Product Description

✦ For Samsung Galaxy A40 (SM-A405) Home Button with Fingerprint Reader (White)

The Samsung Galaxy A40 relies on its home button and fingerprint reader for unlocking, so when it stops responding everyday use becomes a nuisance. This listing is for a white replacement home button with fingerprint reader for the Samsung Galaxy A40, used when the existing part has failed or been damaged.

Fitting means opening the Samsung Galaxy A40 with heat and careful prying, so it suits repair shops and DIY repairers who have worked inside a phone before.

Key Features & Highlights

Product Type
Home Button with Fingerprint Reader
Compatible Model
Samsung Galaxy A40
Model Number
SM-A405
Colour
White
Colour
White
Dispatch
Same day if ordered before 4:00PM Mon–Fri

Compatibility

  • Samsung Galaxy A40 (SM-A405)

Signs Your Fingerprint Sensor Needs Replacing

  • Fingerprints are no longer recognised or cannot be registered.
  • The phone reports that the fingerprint hardware is unavailable.
  • The sensor surface is cracked, scratched or loose.
  • The home or power key built into the sensor does not click (if your model has one).
  • Note: on many phones the sensor is paired to the main board, so a replacement sensor may restore the button but not fingerprint unlock.

How to Check Your Model Number

On the phone or tablet go to Settings › About phone (or About tablet). The model number starts with SM- (for example SM-A145R). It is also printed on the box the phone came in.

Specifications

Attribute Detail
Compatible Brand Samsung
Device Type Phone
Product Type Home Button with Fingerprint Reader
Compatible Model Samsung Galaxy A40
Model Number SM-A405
Colour White
Colour White
What's Included 1 × home button with fingerprint reader
Country of Dispatch United Kingdom 🇬🇧
Dispatch Location Manchester, England
⚠️ Important — Please Read Before Purchase
  • This listing is for the white home button with fingerprint reader only. Contact us to confirm anything beyond the home button with fingerprint reader.
  • The Samsung Galaxy A40 has to be opened to fit it, so professional installation is recommended if you have not done it before.
  • Some phones pair the fingerprint sensor to the main board, so biometric unlock may not work on the Samsung Galaxy A40 even when the part connects.
  • 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.
Your statutory rights under the Consumer Rights Act 2015 remain unaffected for faulty or not-as-described items.

Frequently Asked Questions

Will this home button fit the Samsung Galaxy A40?

This white listing is for the Samsung Galaxy A40 (SM-A405). Check your model number under Settings › About phone before ordering, because home buttons differ between models and versions that look alike.

Does this Samsung Galaxy A40 home button include the fingerprint reader?

Yes. This white part is listed as a home button with fingerprint reader for the Samsung Galaxy A40, so the two come as one part.

What are the signs of a faulty home button on the Samsung Galaxy A40?

On the Samsung Galaxy A40 a failing part usually shows as the button not responding, fingerprints not being recognised, or the sensor working only intermittently.

Will fingerprint unlock work straight away on the Samsung Galaxy A40 after fitting?

Not necessarily. On some phones the fingerprint sensor is paired to the main board, so a replacement in the Samsung Galaxy A40 may restore the button without biometric unlock working again. Contact us if you need advice before ordering.

Do I need to open the Samsung Galaxy A40 to replace the home button?

Yes. The part sits inside the Samsung Galaxy A40, so the phone has to be opened with heat and careful prying. Professional installation is recommended if you have not opened a phone before, and it is worth testing the button before sealing the Samsung Galaxy A40.

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 £7.99

Guaranteed next working day by 1pm (UK). Choose it at checkout.

International Tracked

£9.99

To 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
Hours
Mon–Fri, 10am–6pm

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