(3a) Series Fingerprint Sensor - Issues & Discussion

AshleyLobo · 2025-03-31T09:41:32+00:00

I recently purchased a Nothing Phone 3a Pro, and I've noticed that the fingerprint sensor doesn't function when the device is resting on soft surfaces, such as a bed. However, it works perfectly fine when I pick it up. Is this a common issue, or is there a potential defect with my phone?

sougaaat

Anonymous996 Dude it works! Holy shit!

Anonymous996

sougaaat I know I think it’s some hardware issue by their side like screen blocking the sensor or something like that

Soumyajit_26

Maybe try to add 2 fingerprints of the same finger so that it can read better in different directons

terry_Rebel

I too am having problems with the finger print reader. Uninstalled 3 times and put back. Still hit and miss,? 3a pro

SubhashisBiswas

Nothing phone 3 a’s fingerprint sensor has a lot of bugs. If you look closely in the ss, I can’t register my fingerprint. This has been happening for past 2 days.
Fingerprint doesn’t work properly at most time even if registered.
Unable to delete existing fingerprints. This issue is resolved after restarting the device.
Fingerprint sensor doesn’t work on flat surfaces.

Harshal_XxnyQgm4PZ

SubhashisBiswas bro i am facing same issues did you got any solution regarding this

SubhashisBiswas

Harshal_XxnyQgm4PZ no

HarshalSukale

SubhashisBiswas did you contact with the service centre for this issue?

SubhashisBiswas

HarshalSukale no I haven’t

I’m waiting for a major update from nothing

I think service centre will just recommend to format the device

HarshalSukale

visit the service centre they changed the sensor in my phone it was the sensor issue .

vanadium

So i have new nothing 3a that is less than 24 hour old. After Asteroids-V3.2-250717-1803-EEA update i cant set new fingerprint (i cant get past this screen, the lower right button does not work). Before the update the adding fingerprint worked flawless.

Anyone got same problems, or what is a fix? I have tried to do factory reset, also factory defaults from recovery and nothing helped i still cant set a fingerprint. This is not acceptable for brand new almost 400€ phone.

sunnysingh_AEBfxi1IBA

Hey guys,

I’ve noticed a weird bug with the fingerprint sensor on my Nothing Phone 3a.

The same finger (like my right thumb) gets registered multiple times — showing as Finger 2, 3, and 4. Even my left thumb shows up twice.

Because of this, fingerprint unlock and app login fail a lot of times. Tried deleting and adding again, but no luck.

Just wanted to check if anyone else is facing this issue or found

a fix?

IrfanHSajid

same issue in my 3a pro. Sometimes i need to touch for 2 or 3 times

i_r

Subject: Feedback on Fingerprint Issue with Nothing Phone 3A Pro

Dear Nothing Community Team,

Hello! I am a user of the Nothing Phone 3A Pro and I’ve encountered an issue with the fingerprint feature that I hope to get help with from the community or technical support.

Issue Description:
The fingerprint function on my Nothing Phone 3A Pro is not working properly. Specifically, the following happens:

When trying to register a fingerprint, the system displays a message saying “Fingerprint not calibrated.”
I attempted to enter the engineering mode by dialing ##0##, and while the fingerprint feature didn’t work after the first attempt, I could not enter the debugging mode on the second try.
After that, I’m unable to access the debugging interface again.

I’ve tried the following troubleshooting steps:

Restarting the phone
Clearing the cache
Ensuring the system is up to date
Deleting and re-registering the fingerprint
Attempting to clear the cache in recovery mode

However, the issue persists.

Request for Support:

Is there a known solution for this fingerprint issue?
Are there any further steps or advice on how to access the engineering mode again for fingerprint debugging?
If this is a system or hardware issue, is there a way I can seek warranty support or other assistance?

I would appreciate your help with this and look forward to your response. Thank you in advance!

Device Information:

Phone Model: Nothing Phone 3A Pro
System Version: Nothing OS 3.1
Issue Occurrence: Around (specific date/time)

Looking forward to your reply. Thank you for your support!

Best regards,

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