S24 Ultra Fingerprint Unlock Slower After One UI 7.0 Update

[jerry07]

After the recent One UI 7.0 update, the fingerprint scanner on my Galaxy S24 Ultra appears noticeably slower when unlocking the device. The process seems to follow this sequence:

Touch the screen → Brief black screen → Unlock animation

This entire sequence takes approximately 2 seconds to complete. Considering that many budget smartphones can perform this action almost instantly, it's disappointing to see such a delay on a flagship device. I hope this can be addressed in a future update.

[Robin621k]

Have you tried clearing the cache in Biometrics?

Go to settings and apps. Then where it says your apps tap the 3 lines and toggle on show system apps, type in the search box Biometrics, go to storage and clear cache.

[jerry07]

Thanks for the quick response! I did try this step and it probably gave a very minor improvement i feel, may be 20% better, but still i feel its very slow. Just to add, i do have a screen protector, but it was much faster before One UI 7.0

[Robin621k]

Delete prints and do them again.

Ps. When replying to a comment, press the reply button. This is the only way they get a notification for a follow-up.

[jerry07]

I did try this already, cleared all fingerprints and re-registered, but didn't notice a difference.

[Iceblu12177]

Mine hasn't been affected it's still quick and snappy

[Mujibar · Accepted solution]

Did you clear device cache after the update? This is different from clearing app cache like you just did.


How to clear device cache partition:

1) Turn off your device.

2) Press and hold the Volume Up button and the Side/Power button until you feel a vibration and the Samsung logo appears. Let go of the buttons.

3) You will now be in Android recovery. Use the Volume buttons to highlight "Wipe cache partition."

4) Press the Side/Power button to execute.

5) Use the Volume buttons to highlight "Yes."

6) Press the Side/Power button to execute.

7) "Reboot system now" will already be highlighted. Press the Side/Power button to execute.

[jerry07]

This one seems to have made the biggest improvement in the fingerprint unlock speed!! I had seen this somewhere but with the initial steps I was not able to get into recovery mode, so just didn't research further. 

Before step 2) I had to use a USB-C cable to connect my phone to another device, else it was not going to recovery mode.

By the way - here are the steps which I tried till now, just in case someone has a similar issue  - 

1. Re-added all fingerprints - No affect

2. Tried turning off fingerprint unlock animation - No affect 

3. Turned off - "Show unlock transition affect" under "Lock screen and AOD" settings - A minor perceived improvement

4. Biometrics App, Cache clearing (Show System Apps to be enabled to see Biometrics App) - Minor improvement

5. Enabled 'Touch sensitivity' (Under Display settings) as I am using a screen protector - No affect

6. A weird one - Move away any App icon which is on exact location or overlapping with the fingerprint scanner - No affect

6. Clear device cache partition - Significant Improvement, almost back to normal

Thanks everyone for the quick responses & suggestions!! Amazing community!!

[Mujibar]

Glad you got it!

[kmb1]

That's good, because if anything, UI7 seemed to make my S24U fingerprint unlock even faster.