fingerprint not working - Xiaomi Redmi 4X Questions & Answers

I flashed arrow os latest 7-10-18 build ,
After boot figerprint isnt working ,option available bit when i touch finger nothing happens ,
Then i flashed msm extended , same happened,
Then i tried havoc 2.0 ,
Same happened,
Before flashing arrow os in msm extended fp works fine but dont know
What happens after flashing arrow os ,
Any fix ?

Hello, i have the same problem redmi 4x 2/16, figerprint isnt working, option available but when i touch finger nothing happens, i've tride to solve this problem the way you adviced on web, but there are no these files to delet on my phone. May be any fix?

Follow this thread:
https://forum.xda-developers.com/xiaomi-redmi-4x/how-to/fixes-redmi-4x-t3858845?nocache=1

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[help] fingerprint problem need help

Hi guys, i bought a zuk z2 pro 6gb ram /128
it came with android 8.1 aex 17/11 version, i can see that something was bad because i didn´t get lte, it was just update the baseband...
but i always experienced this problem with the fingerprint :
when phone is screen off and maybe sleeping or idle, to unlock the fingerprint i have to put the finger for some seconds that is normal to aply unlock, with phone unlock if i turn screen off and put my finger again it just takes less than 1 sec to unlock it, it works normal
so problem here is when phone is screen off sleeping or idle, the fingerprint don´t work as it should be
some user recomend me to start from begining so i qfil 1.9 ( and here in the original rom, there is no fingerprint problem ) then ota system updates till 2.5.462st, then i update by recovery ota ZUI 3.1.218, unlock bootloader, twrp, wipe , data cache dalvik and system and i installed aex 4.6
but in 4.6 this problem started again, updated to 8.1 aex and still the same
so guys what i am doing wrong?
can you guys please help me
thank you

Accelerometer/Gyroscope issue

I changed my rom from Havoc 2.9 to Lineage 16. Shortly after that my accelerometer stopped working. Changed back to my previous rom and still no changes. Any suggestions for a fix ?
Persist partition got corrupted. You got to install miui again to get them working. Then if you want to test los16, you can install again after intalling miui
Hope it help

XIAOMI.EU MIUI11 compass issue

Hello guys, I need your help. I discovered that on xiaomi.eu rom compass is behaving kinda wrong. I discussed about it here but I didn't get any solutions for that problem. On Global Stable ROM everything is fine, compass stands still but on the xiaomi.eu it keeps increasing value when the phone is laying on the table. I discovered also that in the diagnostic menu the value of Z axis is increasing (screenshot). As it's not a hardware problem it must be something wrong with the software. Can you help me to solve this problem? If I should check anything else or give you more feedback about it, just tell me. BTW I tried factory reset twice, even flashed back Global rom and then again xiaomi.eu. Also I cleared the compass data and tried to calibrate it many times. I hope it's not a Chinese rom problem on which xiaomi.eu is based on
Seems like the latest update (9.10.31) finally fixed that issue. The thread can be closed/deleted

Question (solved) NFC Problem / please help

Hi guys
I'm not a newbie but I've no more ideas to solve the lost nfc funktion.
My device is sweetin.
I didn't checked nfc before, in the meantime I've flashed cherishos, derpfest, arrow .....and octavios.
Some days ago I decided to try nfc in octavios but there were nothing to find ...no toggle in qs tiles ...no settings about nfc.
So I started to flash and test some ROMs. no success, again and again no nfc toggle. Tried some nfc fixes like nfc willow fix...no success.
All flashing was clean with format yes.
I've decided to flash stock sweetin 12.0.10 via twrp, no success. again with mi flash utility and I've locked the bootloader to get really factory reset. Flashing no probs, booting and updating to 12.5.2 no probs.
But no nfc button.
Unlocked bootloader again, flashed xiaomi.eu
Now nfc toggle is back but not working.
Flashing octavi os, nfc button still present BUT not working (can't activate nfc)
Hopefully someone can help with ideas suggestion solutions?
Thanks in advance
- unfortunately you'll not be able to use NFC ever on your phone
- you can't use something that is not physically there
- sweetin has no NFC implemented, because it's a phone specifically for Indian market, and for whatever reason they don't use NFC there
jeryll said:
- unfortunately you'll be not able to use NFC ever on your phone
- you can't use something that is not physically there
- sweetin has no NFC implemented, because it's a phone specifically for Indian market, and for whatever reason they don't use NFC there
Click to expand...
Click to collapse
I thought I've made a good deal to buy from India
Ok thank you . So I've to buy a new phone....
i have te redmi note 10 pro (sweet) and i dont have nfc function on every rom i tried. i know my phone have nfc because i use google pay with miui and it worked. what should i do? i dontwanna go back to miui
I have crDroid and have the NFC toggle which I can activate. Haven't actually tested it yet. Device is sweet.

General Accelerometer X / Y mirrored

Hi all,
Xiaomi Mi11 running the latest software and having accelerometer issues.
The phone thinks it's upright when my phone is on its side (landscape) so when the phone is upright my apps want to rotate.
I've tried CIT and calibration but it's not helped. is this a known issue?
I had no issues until I tried out pixel experience ROM, didn't like it so flashed the original ROM back on. I've tried several different versions of the stock ROM and still had issues.
Additional note. I got the correct stock ROM from the Xiaomi website and flashed it using their tool using full clean and flash m

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