[help] fingerprint problem need help - Lenovo Zuk Z2 Pro Questions & Answers

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

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Z3 Compact - How to ONLY update baseband (having "sim" loss issues)

Hy guys,
I'm facing some issues with my Z3C. I bought it 2 weeks ago, unlocked bootloader, installed twrp, flashed CyanogenMod 12.1 Nightly on day 3. Updated CM twice with OTA since then.
My problem is that the "sim" card (GSM/LTE) is randomly not noticed by my phone, like if its removed. I checked the sim tray, everything is stable and well seated, the sim is also OK, never had an issue with it. I just have it in my pocket or on the desk, pick it up to do something and there is already a No SIM icon on the status bar, and "Emergency calls only" If I lock the phone. Only a restart solves it.
I could not find any noticeable trigger which would lead me to the source of the problem. Sometimes its OK for 2 days sometimes it happens 2 times a day. The really frustrating part is that when the sim "disconnects" the phone starts to heat up significantly. I usually only notice it because my phone is burning my pocket. Also it looses around 20% battery before I notice it. After the restart everything is fine, the phone cools down.
Went to the Cyanogen forums for some possible solution for the problem, they suggested that I should try to update my baseband to the latest version, and if that still doesn't help, do a full wipe / clean install of CM nightly. I tried downloading the latest firmware using FlashTool and XperiFirm, creating an ftf, and flashing only AMSS_FSG, AMSS_FS1, AMSS_FS2 included into the flash ( I only wan't to flash the baseband ?!?).
My question would be: Anyone else had this problem and managed to fix it somehow? If not, anyone could please help me with a small guide how to ONLY update the baseband of my Z3C (D 5803) running CM 12.1 nightly on twrp recovery?
When I tried the flash above, my baseband version did not change. Currently I'm on "8974-AAAAANAZQ-00005-40" Baseband version, and I would like to move to the latest most stable one.
Thanks for the help in advance!
If it were my Z3c, I would flash back to stock completely and then reflash with Cyanogen. This is a device on which you have the freedom to do that, and that gets the job done safely. Backup your CM install, and then flash everything.

[Q] Random freeze rebooting Xiaomi Mi5 problem!

I bought new Mi5 and I still didn't put Sim card inside wanted to configure and see what phone can but when I entered configuration menu after 1st power up I manage to choose language and few things more and phone rebooted, then I manage to almost finish configuration then freeze and reboot again, after few tries I finished configuration but freeze (usually only last few seconds) and reboot happen again. Then phone offered me update software which I manage to reach from 3rd time and successfully update only with Mi PC Suite, not from phone update app. Interesting, all flashing proces with Mi PC Suite always is going as should be, without reboots etc... Crap happen only in OS. Now I got latest China stable (I bought phone in China) which has same problem with rebooting. Then I wiped all I can, factory reset etc...nothing helps.
-Still didn't unlock phone in case I need to return it.
-Didn't try global Rom because I can't flash it
I was reading forums and found a lot people have same problem but didn't find what they done on the end to make phone work.
If anyone have some solution, let me know. Returning phone from EU to China is not 1 day Or does someone know if someone in EU can service this if needed?
thanks in advance
huh,
I solved (for now) problem with installing this, developer version of miui 8 from here
http://xiaomiadvices.com/download-miui-8-6616-china-developer-rom-recoveryfastboot/
Downloaded it and installed with English version of MI PC Suite. Developer rom is Chinese (as my default software version in phone) over latest Chinese 7.3.10 miui
With original software phone was restarting, freezing randomly every 30 seconds or 1 minute of usage.
Now need to wait to unlock phone so I can use Global version of rom to get play store etc...

fingerprint not working

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

Fingerprint scanner

Hi, I've a problem with my fingerprint scanner on my huawei p9.
First I thought it was software problem, so I have make clean install (with TWRP, wipe all and install via HuRupdater)
It doesn't help.
I've replaced the scanner and it worked half day and stoped working again.
Any help?

Question MI 11 Ultra- Issues post update to MIUI 14.0.1.0

Hi Everyone,
I updated the phone (OTA) to Global 14.0.1.0 a few weeks back and am facing issues from day one.
1. The phone overheats
2. The battery is drained much faster
3. The Bluetooth disconnects randomly
4. Rear display has stopped working
5. When I reboot the phone (Switch off/on) the screen is all garbled and phone freezes
I dont want to ditch the device as it is a great phone with super camera.
Requesting the experienced and learned in the forum to help in out, will be very grateful.
The phone is not rooted
MIUI Global 14.0.1.0 (TKAINXM)
Android Version 13 TKQ1.220829.002
Any solution for these issues ???? Please Help !!
indtram said:
Hi Everyone,
I updated the phone (OTA) to Global 14.0.1.0 a few weeks back and am facing issues from day one.
1. The phone overheats
2. The battery is drained much faster
3. The Bluetooth disconnects randomly
4. Rear display has stopped working
5. When I reboot the phone (Switch off/on) the screen is all garbled and phone freezes
I dont want to ditch the device as it is a great phone with super camera.
Requesting the experienced and learned in the forum to help in out, will be very grateful.
The phone is not rooted
MIUI Global 14.0.1.0 (TKAINXM)
Android Version 13 TKQ1.220829.002
Any solution for these issues ???? Please Help !!
Click to expand...
Click to collapse
You can try unlocking bootloader and installing Weekly ROM or EliteRom(which I am using).
For better battery life and overheating you can root and install undercklocking modules that are available on this forum ( I am using "SD778G Gaming" module)

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