Fngerprint scanner does not work - Xiaomi Mi A3 Questions & Answers

There is a problem with the fingerprint scanner.
After a rollback from custom firmware to stock 9, the fingerprint worked, but the proximity sensor and auto-rotate did not work. After reading the forums, I found out that in order to restore the sensors, it is necessary to flash persist.img through twrp in the terminal. and reinstall the firmware via fastboot. After all the above operations, the sensors have earned, but the fingerprint scanner does not work. When adding a fingerprint, scanning does not work, only the animation blinks, and nothing else happens. Please help if anyone knows a solution to this problem.

Yes bro I have the same problem for 1 week.
İ downgraded then update sensors are back, fingerprint not.
Hopefully I will get a solution soon, otherwise I will send it to Warranty
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi

ceylas said:
Yes bro I have the same problem for 1 week.
İ downgraded then update sensors are back, fingerprint not.
Hopefully I will get a solution soon, otherwise I will send it to Warranty
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
If you can find a solution for recovering a fingerprint scanner, please let me know

ok if you find a solution, let me know
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi

ceylas said:
ok if you find a solution, let me know
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
Some guys with 4pda have the same problem with fingerprints after rolling back to 9 stock and firmware persist.img. No solution found either.

Hant55 said:
Some guys with 4pda have the same problem with fingerprints after rolling back to 9 stock and firmware persist.img. No solution found either.
Click to expand...
Click to collapse
Big trouble, I bought the phone just 1 month ago
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi

interesting, Xiaomi support may try to help or they will say that's yours problem after downgrade...
P.S. One from 4PDA with same issue

Flashing persist.img is the dumbest thing you could do on a A/B device... Just Google it and you'll find out that it contains important files that are not recoverable without having your motherboard replaced or re-flashed by a service center employee.
Or simply keep a backup of persist partition before doing anything that might modify or break it, like flashing custom ROMs.

Codebucket said:
Flashing persist.img is the dumbest thing you could do on a A/B device... Just Google it and you'll find out that it contains important files that are not recoverable without having your motherboard replaced or re-flashed by a service center employee.
Or simply keep a backup of persist partition before doing anything that might modify or break it, like flashing custom ROMs.
Click to expand...
Click to collapse
Unfortunately, i got it too late... I will try to ask for help in Xiaomi Support

Codebucket said:
Flashing persist.img is the dumbest thing you could do on a A/B device... Just Google it and you'll find out that it contains important files that are not recoverable without having your motherboard replaced or re-flashed by a service center employee.
Or simply keep a backup of persist partition before doing anything that might modify or break it, like flashing custom ROMs.
Click to expand...
Click to collapse
Then why for some everything works as before after flashing persist? And for others, the imprint stops working. There must be some way to restore it to work.

Noade said:
Unfortunately, i got it too late... I will try to ask for help in Xiaomi Support
Click to expand...
Click to collapse
Please let me know if any solution to the problem is found.

Noade said:
Unfortunately, i got it too late... I will try to ask for help in Xiaomi Support
Click to expand...
Click to collapse
Yes I am waiting too, please inform
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi

Hant55 said:
Please let me know if any solution to the problem is found.
Click to expand...
Click to collapse
did you find a solution
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi

ceylas said:
did you find a solution
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
Still did not find a solution

As you already screwed up your phones, you can as well try steps mentioned here: https://forum.xda-developers.com/mi-a2-lite/how-to/fix-fingerprint-enrolling-persist-t3954712
Do NOT flash the attached file though.

_mysiak_ said:
As you already screwed up your phones, you can as well try steps mentioned here: https://forum.xda-developers.com/mi-a2-lite/how-to/fix-fingerprint-enrolling-persist-t3954712
Do NOT flash the attached file though.
Click to expand...
Click to collapse
how do i flash. twrp does not flash persist.img
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi

ceylas said:
how do i flash. twrp does not flash persist.img
Click to expand...
Click to collapse
Where exactly in the 4 steps guide you see that you should flash persist.img?
Btw. you already flashed persist.img, didn't you? Have you tried flashing stock Android 10 ROM back?

_mysiak_ said:
Where exactly in the 4 steps guide you see that you should flash persist.img?
Btw. you already flashed persist.img, didn't you? Have you tried flashing stock Android 10 ROM back?
Click to expand...
Click to collapse
Sorry I didn't read carefully.
I made a return to Android 10 but nothing has changed Fingerprint still doesn't work I will try these codes and return again, thank you
Mi A3 cihazımdan Tapatalk kullanılarak gönderildi

_mysiak_ said:
As you already screwed up your phones, you can as well try steps mentioned here: https://forum.xda-developers.com/mi-a2-lite/how-to/fix-fingerprint-enrolling-persist-t3954712
Do NOT flash the attached file though.
Click to expand...
Click to collapse
Thanks for the help, but this doesn’t work. There are no files in the data / folder

Hant55 said:
Thanks for the help, but this doesn’t work. There are no files in the data / folder
Click to expand...
Click to collapse
Did you mount the persist folder in TWRP? It isn't mounted by default as far as I remember.

Related

[Latest TWRP Desire 820 htc_a51ul]

Here is latest version of TWRP 2.8.7.0 recovery with material theme for European version of Desire 820 with Qualcomm processor and single sim (htc_a51ul) .
Will NOT work with MTK, so please DO NOT TRY.
Specifications:
* Marshmallow compatible
* Material theme
* Qualcomm compatible
Unlock Your bootloader on htcdev
Untar attached file.
Reboot into bootloader by pressing POWER+VOLUME_UP until display come black, than don't let POWER button but immediately press&hold VOLUME_DOWN until You see HBOOT mode.
When have BLUE signed HBOOT press POWER button once.
That will will change HBOOT into FASTBOOT
Open terminal on Your PC
Apply:
Code:
fastboot flash recovery recovery.img
Reboot into Recovery
Enjoy into latest TWRP
Sources are available on My github and on TEAMWIN github
PS Marshmallow 6.0.1 (CM13) following soon
EDIT1:
Link changed (new version)
DOWNLOAD
Black Screen
HTC Desire 820 cihazımdan Tapatalk kullanılarak gönderildi
vezir020 said:
Black Screen
HTC Desire 820 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
EUROPEAN version, a51ul, QUALCOMM (maybe dualsim version from India a51dtul) not any other!!!
Not working, like your previous recovery, I have a51_ul (in hboot), qualcomm, black screen I don't know why but only this recovery is working for me http://owncloud.qkiz.pl/index.php/s/yrGf7qeF8DyQbyG Maybe because I'm on the tomal rom?
fergy said:
EUROPEAN version, a51ul, QUALCOMM (maybe dualsim version from India a51dtul) not any other!!!
Click to expand...
Click to collapse
Yes, a51ul s-off Desire 820n
HTC Desire 820 cihazımdan Tapatalk kullanılarak gönderildi
Skorupa123 said:
Not working, like your previous recovery, I have a51_ul (in hboot), qualcomm, black screen I don't know why but only this recovery is working for me http://owncloud.qkiz.pl/index.php/s/yrGf7qeF8DyQbyG Maybe because I'm on the tomal rom?
Click to expand...
Click to collapse
Indeed, it have black screen for first maybe 7-10 seconds.
Rom don't have anything with recovery.
Can You please recheck once more?
Thank You
vezir020 said:
Yes, a51ul s-off Desire 820n
HTC Desire 820 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
OK, Thank You
Hi there,
Is there any chance of this working for an A51_TUHL?
I can provide any information you may need!
Cheers
It's a black screen for me too. Adb is no-accessible.
tomal said:
It's a black screen for me too. Adb is no-accessible.
Click to expand...
Click to collapse
Thank You @tomal :good:
adb is not accessible as I was disable it. Will recheck and upload new one.
Hmm...it work. I will re-upload
ecips said:
Hi there,
Is there any chance of this working for an A51_TUHL?
I can provide any information you may need!
Cheers
Click to expand...
Click to collapse
I was reply under Your other post (Troubleshooting), so please respond there.
Thank You
I'm getting gateway error to the google server. Anybody pls add a mirror to the update.
tomal said:
I'm getting gateway error to the google server. Anybody pls add a mirror to the update.
Click to expand...
Click to collapse
http://www1.zippyshare.com/v/kt5cSpUI/file.html enjoy!
@edit: Still not working for me, I waited two minutes, black screen again, but if I click somewhere on the screen the vibrations is working.
Hi,
Black screen, nothing more...
Ummmh.... don't understand. Last upload was taken directly from my phone...
fergy said:
Ummmh.... don't understand. Last upload was taken directly from my phone...
Click to expand...
Click to collapse
The recovery from link I was provided is for a51_dtul (i think it dual sim) and it's only working for me, but I don't know why because I have a51_ul, and any recovery for a51_ul is working for me. Btw. great job with this recovery, I hope we can get this thing to work
Skorupa123 said:
The recovery from link I was provided is for a51_dtul (i think it dual sim) and it's only working for me, but I don't know why because I have a51_ul, and any recovery for a51_ul is working for me. Btw. great job with this recovery, I hope we can get this thing to work
Click to expand...
Click to collapse
Don't know because I can start any dtul,ul,tuhl (32bit) recovery without problem...plus, this one work without problem on my phone. Strange but we will figured out what is wrong and why don't want to show graphics.
Thank You.
New file Flash and Black Screen
HTC Desire 820 cihazımdan Tapatalk kullanılarak gönderildi
fergy said:
Don't know because I can start any dtul,ul,tuhl (32bit) recovery without problem...plus, this one work without problem on my phone. Strange but we will figured out what is wrong and why don't want to show graphics.
Thank You.
Click to expand...
Click to collapse
I can help, do you need logs or something?

redmi note 4 mtk mi account bypass tested solution need help me

need tested solution for note 4 ..
i flash only boot and system but not done
i try 4 flash file but not done
i flash downgrade rom but same .. need help
format all and download also use but not solved
Yeah...same with me
me 2
scaninso said:
Yeah...same with me
Click to expand...
Click to collapse
if you find solution so tell me
bikku.gupta said:
if you find solution so tell me
Click to expand...
Click to collapse
bikku.gupta said:
need tested solution for note 4 ..
i flash only boot and system but not done
i try 4 flash file but not done
i flash downgrade rom but same .. need help
format all and download also use but not solved
Click to expand...
Click to collapse
scaninso said:
Yeah...same with me
Click to expand...
Click to collapse
If you are trying to circumvent the device security there is no way & that is for good reason.
Log into your Mi Account, Reset your password or account particulars.
Sent from my Redmi Note 4 using Tapatalk
i found a hard solution.. Email Me [email protected]
pliz share in this forum dude.,.

[8.9.7] Miui 10 Global-Dev-Beta Out!

Hello guys, this morning update pop-up. 8.9.7. General Bugfixing.
Asap link
Well I downloaded the beta ROM, but can't update via updater app (locked bootloader, global stable) is there any other way to safely update without getting my phone bricked?
Thanks
nice one updated
Notification icons fixed?
Well system updater gives me: http://bigota.d.miui.com/8.9.7/miui_MI8Global_8.9.7_fb7963a71d_8.1.zip
But update fails, it says "try again" - URL above shows 404 not found.
Did they withdraw the update?
where is the link with twrp ROM?
Still no links, server is giving error 404.
As soon as possible i will post the link
this is the link....
http://bigota.d.miui.com/8.9.7/miui_MI8Global_8.9.7_fb7963a71d_8.1.zip
from here:
http://en.miui.com/download-346.html
Any noticeable changes?
URL only gives:
404 Not Found
Code: NoSuchKey
Message: The specified key does not exist.
Key: 8.9.7/miui_MI8Global_8.9.7_fb7963a71d_8.1.zip
RequestId: 0604EE0D016F167C
HostId: I2r99aerfGaC6pY5/BcV4+RbyzzOI/EpfDDayMXZcFGgo3QvyxuxPLIvUSiUvYdzpsZZ0EQmGyI=
Sent from my ONEPLUS A5010 using XDA-Developers Legacy app
grootooter said:
URL only gives:
404 Not Found
Code: NoSuchKey
Message: The specified key does not exist.
Key: 8.9.7/miui_MI8Global_8.9.7_fb7963a71d_8.1.zip
RequestId: 0604EE0D016F167C
HostId: I2r99aerfGaC6pY5/BcV4+RbyzzOI/EpfDDayMXZcFGgo3QvyxuxPLIvUSiUvYdzpsZZ0EQmGyI=
Sent from my ONEPLUS A5010 using XDA-Developers Legacy app
Click to expand...
Click to collapse
Same to me
Inviato dal mio MI 8 utilizzando Tapatalk
gulp79 said:
this is the link....
http://bigota.d.miui.com/8.9.7/miui_MI8Global_8.9.7_fb7963a71d_8.1.zip
from here:
http://en.miui.com/download-346.html
Click to expand...
Click to collapse
I know but for now links are broken.
youngchaos said:
I know but for now links are broken.
Click to expand...
Click to collapse
Maybe another withdraw...
No because OTA is still there.
I modded the updater-script inside OTA zip and installed it through TWRP.
Inviato dal mio MI 8 utilizzando Tapatalk
youngchaos said:
Hello guys, this morning update pop-up. 8.9.7. General Bugfixing.
Asap link
Click to expand...
Click to collapse
Updated thought OTA two days ago..
So far so good
Has anyone a link for a TWRP installation?
how to install this? fastboot? or twrp?
aftermath85 said:
how to install this? fastboot? or twrp?
Click to expand...
Click to collapse
Through OTA
I got via OTA, something like 48mb. No it is not Pie if someone is wondering.
mal13 said:
I got via OTA, something like 48mb. No it is not Pie if someone is wondering.
Click to expand...
Click to collapse
Antutu benchmark still can't beat black shark

can't change region on global 9.6.25.0

https://photos.app.goo.gl/nUkryKkBBE4JirFu6
I can't change region I have done a factory reset still can't! It stuck in China
Any idea? So I can activate face unlock
Did you get order phone from China or normal global version?
Global Version came sealed
Miui 10
big_b0sss said:
Global Version came sealed
Click to expand...
Click to collapse
Try updating to Miui 10 BATA works on my F1
big_b0sss said:
https://photos.app.goo.gl/nUkryKkBBE4JirFu6
I can't change region I have done a factory reset still can't! It stuck in China
Any idea? So I can activate face unlock
Click to expand...
Click to collapse
Go to additional settings and check to change region to India. It should be available below languages and input section.
Try it as it is available in my phone having 9.6.25 fw.
Thanks
big_b0sss said:
https://photos.app.goo.gl/nUkryKkBBE4JirFu6
I can't change region I have done a factory reset still can't! It stuck in China
Any idea? So I can activate face unlock
Click to expand...
Click to collapse
If u still have this problem. Download this file and flash using twrp.
https://drive.google.com/file/d/1-g2zeY_avSZ9qqvNbFb-zP3CNp6k9GZR/view
sanjay0501 said:
If u still have this problem. Download this file and flash using twrp.
https://drive.google.com/file/d/1-g2zeY_avSZ9qqvNbFb-zP3CNp6k9GZR/view
Click to expand...
Click to collapse
Thanks but I'm using lineages os now
big_b0sss said:
Thanks but I'm using lineages os now
Click to expand...
Click to collapse
Custom ROM (especilly Xiaomi-EU) removes cust partition data which is required for changing region on Stock MIUI and it doesn't come in twrp flashable zips so if you want to change regian after going back to stock from custom roms you need to flash it via fastboot method.
you can search for flashing only cust or other tricks like editing build.prop for region change on google/xda (i never used them so i don't know much about it)
sanjay0501 said:
If u still have this problem. Download this file and flash using twrp.
https://drive.google.com/file/d/1-g2zeY_avSZ9qqvNbFb-zP3CNp6k9GZR/view
Click to expand...
Click to collapse
I am encountering the same problem.
Is it safe to flash it on Miui 10 Global too?
kazabubu said:
I am encountering the same problem.
Is it safe to flash it on Miui 10 Global too?
Click to expand...
Click to collapse
I flashed it on miui 10 global butmine is beta 8.11.8 so I think yes it should be safe
sanjay0501 said:
I flashed it on miui 10 global butmine is beta 8.11.8 so I think yes it should be safe
Click to expand...
Click to collapse
Thank you for the answer.I will try it...
sanjay0501 said:
I flashed it on miui 10 global butmine is beta 8.11.8 so I think yes it should be safe
Click to expand...
Click to collapse
Thanks, worked on 8.11.29 as well
Unable to find face unlock and stuck at china region in Poco f1
Hey .
I tried the file shared by sunjay but it's showing unable to install because it's unofficial.
My device is not rooted i updated to 10.3.4.0 after some time i reset my phone from that time i am facing this problem.
Plz help
 @sanjay0501
sanjay0501 said:
If u still have this problem. Download this file and flash using twrp.
https://drive.google.com/file/d/1-g2zeY_avSZ9qqvNbFb-zP3CNp6k9GZR/view
Click to expand...
Click to collapse
Work with MIUI 10 vers 10.3.4.0 Global but after reboot, she goes back to china :/
Hi, try this file. Flash it with twrp.
Hit thanks if it works out for you guys.
ALL_Region keyword inclusion for better search.
Cheers
sssyraj.
sssyraj said:
Hi, try this file. Flash it with twrp.
Hit thanks if it works out for you guys.
ALL_Region keyword inclusion for better search.
Cheers
sssyraj.
Click to expand...
Click to collapse
Thank you this fix works with 9.6.27 and doesn't revert to China region after reboot
Works perfectly fix my problem thank you so much for sharing
Btw I'm using the latest 10.3.5 global stable
sssyraj said:
Hi, try this file. Flash it with twrp.
Hit thanks if it works out for you guys.
ALL_Region keyword inclusion for better search.
Cheers
sssyraj.
Click to expand...
Click to collapse
Happy to help you
Brisin said:
Thank you this fix works with 9.6.27 and doesn't revert to China region after reboot
Click to expand...
Click to collapse
Great. Happy that helped you.
Cheers
sssyraj
---------- Post added at 08:04 PM ---------- Previous post was at 08:02 PM ----------
joseph.jrca said:
Works perfectly fix my problem thank you so much for sharing
Btw I'm using the latest 10.3.5 global stable
Click to expand...
Click to collapse
Great.happy that it helped you. I was using this for all the global betas and stable. This will not work only on EU MIUI roms as they doesn't have region option enabled.
Cheers
sssyraj.
Can be use mi max 2 miui 11. I also face this issue. Thanks
sssyraj said:
Hi, try this file. Flash it with twrp.
Hit thanks if it works out for you guys.
ALL_Region keyword inclusion for better search.
Cheers
sssyraj.
Click to expand...
Click to collapse
Can be use mi max 2 miui 11. I also face this issue. Thanks
Hi
I used the patch but it reverts after reboot.
I'm on MiMax2 MIUI 11.

Problem with LR Twrp.

I have installed this recovery via fastboot following the instructions of the thread that is now blocked. My problem is that all the folders with very strange names appear and I cannot access them. Previously I was wondering if I wanted to decrypt and put my pin and it worked. Now he doesn't ask me anything and I don't get that option. Someone would be so kind to help me .... Thanks in advance.
Enviado desde mi Redmi Note 9S mediante Tapatalk
Hi.
Find there new version and try to update.
https://mifirm.net/list/twrp
andriyhar said:
Hi.
Find there new version and try to update.
https://mifirm.net/list/twrp
Click to expand...
Click to collapse
Thanks, I have tried but it is still the same. Any other idea??
sivandra said:
Thanks, I have tried but it is still the same. Any other idea??
Click to expand...
Click to collapse
You have to digit your pin/password/pattern you use for your lockscreen
sivandra said:
Thanks, I have tried but it is still the same. Any other idea??
Click to expand...
Click to collapse
You need to format data with lrtwrp to decrypt if you want proper names
to make it permanent, how do you do it or can't twrp?
sivandra said:
I have installed this recovery via fastboot following the instructions of the thread that is now blocked. My problem is that all the folders with very strange names appear and I cannot access them. Previously I was wondering if I wanted to decrypt and put my pin and it worked. Now he doesn't ask me anything and I don't get that option. Someone would be so kind to help me .... Thanks in advance.
Enviado desde mi Redmi Note 9S mediante Tapatalk
Click to expand...
Click to collapse
What did you do between "previously" an "now"?
That could lead us to understand what to do...
Like you explain you are forced to format data and loose your data as well.
You can escape from this in case of very important unsaved one by flashing the last eu rom via OTG or external SDcard.
andriyhar said:
Hi.
Find there new version and try to update.
https://mifirm.net/list/twrp
Click to expand...
Click to collapse
Hello ,
Have you also ROOT using MAGISK with this TWRP ?
My version is : MIUI Global 11.0.1 | Stable 11.0.1.0 ( QJZMIXM )
Any suggestion on youtube I can follow the ROOT procedure on this device ?
Thank you very much.
edmond
eeeemc said:
Hello ,
Have you also ROOT using MAGISK with this TWRP ?
My version is : MIUI Global 11.0.1 | Stable 11.0.1.0 ( QJZMIXM )
Any suggestion on youtube I can follow the ROOT procedure on this device ?
Thank you very much.
edmond
Click to expand...
Click to collapse
This is stock rom?
Root via TWRP option might not work because of boot protection.
Best is to move to EU 11.08 rom. You be able to root via twrp and install YT vanced.
lolo9393 said:
This is stock rom?
Root via TWRP option might not work because of boot protection.
Best is to move to EU 11.08 rom. You be able to root via twrp and install YT vanced.
Click to expand...
Click to collapse
Thank you.
Just have seen in here a thread about root..... Will dig into that to see if any luck.
Yes, everybody loves YT vanced., Save lots & lots of time.
https://forum.xda-developers.com/re...root-redmi-note-9-pro-miui-v11-0-4-0-t4072781
andriyhar said:
Hi.
Find there new version and try to update.
https://mifirm.net/list/twrp
Click to expand...
Click to collapse
eeeemc said:
Thank you.
Just have seen in here a thread about root..... Will dig into that to see if any luck.
Yes, everybody loves YT vanced., Save lots & lots of time.
https://forum.xda-developers.com/re...root-redmi-note-9-pro-miui-v11-0-4-0-t4072781
Click to expand...
Click to collapse
Surprise that Youtube Vance via Magisk download is no longer I can find them during from with-in Magisk Manager ---> Module --> download.
Glad I have a zip copy from few of my old phone I can copy to my new device Redmi Note 9 Pro and it is now installed & seems working properly.
Just to report this as strange from my device Magisk Manager canot download Vance Module .
Thank you very much.
edmond.
eeeemc said:
Surprise that Youtube Vance via Magisk download is no longer I can find them during from with-in Magisk Manager ---> Module --> download.
Glad I have a zip copy from few of my old phone I can copy to my new device Redmi Note 9 Pro and it is now installed & seems working properly.
Just to report this as strange from my device Magisk Manager canot download Vance Module .
Thank you very much.
edmond.
Click to expand...
Click to collapse
Whats the advantage of installing YT vance through magisk, i install it through normal way (apk) and it seems works fine.

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