Fingerprint scanner not working after flashing RR - Xiaomi Redmi 4X Questions & Answers

Hello, I would like to ask why my fingerprint scanner isn't working. It worked perfectly when I had miui but I switched yesterday to RR 7.0.2 and I can't even register new fingerprints. I forgot to delete my old ones when I flashed RR, is that the problem? How do I fix this? Any help would be appreciated.
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Proximity Sensor Uncalibrated

Hi everyone, in the last week i have decided to try miui, and i tryed, now i come back to Lineage OS and have a issue, the sensor is uncalibrated. I tryed so many things and anything could help me, my sensor just work when i come back to Miui and calibre the sensor in configs, only in Miui. I tryed so many firmwares, and roms, Lineage, Cosmic, Omni.. Any solution for this problem?
Sorry for my bad english. Thanks
same thing here, was on lineage oreo (lineage-15.1-20180423-nightly-gemini-signed.zip), suddenly proximity sensor not working (screen turning off when receiving call), installed miui to recalibrate, work fine, installed lineage oreo (lineage-15.1-20180507-nightly-gemini-signed.zip) again, proximity again failed
i think the problem started with the lineage oreo image lineage-15.1-20180423-nightly-gemini-signed.zip but might be the one after that..
i know it did work with the anoying april fool's version
same issue
I have the same issue here on my mi 5
Since nighty april update of lineage 15.1, my proximity sensor is not working anymore in call.
I have a black screen in every call.
it's very paintfull
solved
Problem solved updating with last firmware version MIUI 8.5.10 Global dev
here :
https://forum.xda-developers.com/mi-5/development/firmware-flashable-zips-updated-t3785735

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Hi.
Except custom roms with Android 10, every rom I tried, my goodix FP works/worked perfectly.

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