Direct answer
The HP EliteBook 840 G5 G6 Fingerprint Sensor Module is a tested, OEM-pulled fingerprint sensor for HP EliteBook 840 G5 and G6 replacement. It costs Rs. 3,199 at N.N Laptops, Hafeez Center, Gulberg III, Lahore, comes with a 30-day check warranty, and is bench-tested before dispatch. Same-day pickup in Lahore and nationwide delivery via TCS or Leopards.
Compatibility — which laptops fit this part?
This hp elitebook 840 g5 g6 fingerprint sensor module is verified to fit the following laptop models. We physically test the part on a known-good chassis before shipping to confirm seating, connector pinout, and electrical behaviour. If your model is similar but not listed, WhatsApp 0314 4000131 with your full service tag or model number and we will confirm fit in minutes.
- Confirmed models: EliteBook 840 G5, 840 G6
- Connector type: Validity / HP 4-pin
- Pulled from: Tested working donor unit, no impact damage, no liquid corrosion
Specifications at a glance
| Sensor type | Capacitive touch |
|---|---|
| Connector | Validity / HP 4-pin |
| Driver support | Windows Hello compatible |
Capacitive touch sensors detect the electrical properties of your finger, making them more reliable and durable than optical sensors. They work even with slightly damp or dry fingers and are less susceptible to dust. This HP module uses Validity technology, ensuring quick recognition and low power consumption. While aftermarket modules may cost less, they often have inconsistent performance and shorter lifespan. Our OEM-pulled part has been tested on a known-good EliteBook 840 G5 and comes with a 30-day check warranty. We also offer in-shop testing so you can see it work before you pay.
Real-world use cases
Customers in Lahore typically order this part for the following repair scenarios:
- Fingerprint reader no longer detects fingers after liquid spill
- Windows Hello enrollment fails with 'sensor not detected' error
- Upgrading a base-model laptop that shipped without a fingerprint reader (if BOM supports it)
- Replacing a cracked or chipped sensor surface
Installation guidance
The replacement is straightforward for any technician with basic laptop disassembly experience. A walkthrough:
- Power down and unplug the laptop.
- Remove the bottom case to access the palm rest.
- Locate the fingerprint reader assembly seated in the palm rest cut-out.
- Disconnect the small ribbon cable from the motherboard or daughter board.
- Remove the 1-2 retention screws and pop the old reader out from the palm rest cut-out.
- Drop the new reader into the same cut-out, screw it in, and reconnect the ribbon.
- Boot, install the appropriate driver (Synaptics WBF for Lenovo, Validity for HP, Dell ControlVault for Dell), and enrol a finger in Windows Hello.
Tools you will need
Philips PH00 screwdriver, plastic spudger or guitar pick, ESD wrist strap, anti-static surface, and a small parts tray. If you do not have these, we offer in-shop installation at Hafeez Center for a flat Rs. 1,500 fitting fee — usually completed within 45 minutes.
What to test after install
Boot the laptop, verify the component is detected in Device Manager (Windows) or System Report (macOS), run a stress test for 10-15 minutes, and confirm no unusual heat or noise. Our 30-day check warranty covers exactly this validation window.
Why buy from N.N Laptops
We have been the trusted laptop spare-parts vendor in Hafeez Center since 2016. Every internal part we sell is pulled from a working donor unit, cleaned, bench-tested, and labelled with the donor model. I, Sayam, personally oversee testing of each part. We don't ship guess-work parts. You also get the option to walk in and watch the test before you pay — try getting that from an online-only seller. Every part, including this fingerprint sensor, is bench-tested on a compatible laptop before listing.
Pair this part with our compatible EliteBook 840 G5 matching palm rest compatible touchpad for a complete repair.
Frequently asked questions
Is this fingerprint reader original or compatible?
It is an OEM-pulled original part removed from a working EliteBook 840 G5 donor unit. It is not aftermarket plastic. Each unit is bench-tested before listing and labelled with the donor service tag.
How do I know my model is compatible?
WhatsApp your laptop service tag or full model number to 0314 4000131. We will pull up the BOM in 2-3 minutes and confirm exact compatibility. Most parts in this listing fit a 2-3 generation range, so chances are high your model is covered.
Do you offer in-shop installation?
Yes. Walk in to Shop 66A, Hafeez Center for in-shop installation at a flat Rs. 1,500 fitting fee. Most replacements are done in 30-60 minutes while you wait. We do not charge a diagnostic fee if you buy the part from us.
What if the part does not work in my laptop?
You are covered by our 30-day check warranty. If the part is genuinely faulty or incompatible, we refund or exchange — no restocking fee — as long as the part shows no signs of incorrect installation.
Can I get delivery in Karachi or Islamabad?
Yes. We ship Pakistan-wide via TCS and Leopards. Delivery takes 2-4 working days outside Lahore. Customers from Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, and Sialkot order through WhatsApp and receive delivery in 2-4 working days. The price is Rs. 3,199. We offer same-day delivery in Lahore.
Where to buy in Lahore
Walk in to Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore, or message 0314 4000131 on WhatsApp. We are open Monday to Saturday, 11 AM to 9 PM. Sundays we answer WhatsApp orders only. Nationwide delivery via TCS or Leopards reaches every Pakistani city in 2-4 working days.
Order through WhatsApp 0314 4000131 or visit Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore. We offer Lahore delivery, nationwide delivery via TCS and Leopards, and a 30-day check warranty on every item we sell. Pakistan-wide shipping in 2-4 working days. For inquiries, contact Sayam at nnlaptops.com.
