yashsingh1/xdaforums huggingface dataset:
[LeEco Le Max 2 Guides, News, & Discussion] NextGear:
Flashed "Official" Pixel Experience 8.1 (2018.02.01) and the 466D Modem, all at once on TWRP (got modem flashed -- changed on Base Band Info after first ROM boot). Nothing changed on the fingerprint sensor behaviour (i tried calibrate etc), even a device "cold start". So, i wanted to go back to 19S Indian Stock ROM (to get it "stock" again), tried access TWRP, got an encripty error, "formated SD on TWRP" but no access (Oreo changed that procedure?). Got a message on Oreo boot to format the device (decrypt partition error or anything related), but it calls TWRP (recovery) and i get a loop -- how to solve that, and encryption error on TWRP/Oreo? So, i "QFILLed" my device again to solve that "shi...ft".

Flashed 19S Indian Stock ROM. Tried let it turned off one week. Turned it on, calibrate the sensor, tried to add a fingerprint and... no response on the first screen (localize and tap the sensor).

No good luck on that for me...
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
That's new... Something like that should not happen and it didn't happen to enyone using that ROM (I read all the messages on that thread)... My guess would be that something happened while installing the ROM... Which TWRP version were you using? If you want to try it again flash first the newest TWRP again and than clean install the 8.1 The second try could or should help... One other thing... Install first the system, than start it so it can go through all the first start procedures and than install the modem...
[LeEco Le Max 2 Guides, News, & Discussion] NextGear:
Hi.

Latest TWRP (twrp-3.2.1-0-x2.img)

I'll suggest to all that installed Oreo (Pixel Experience) and have an encrypted partition, to pay attention on my report: maybe all they will have a problem to use TWRP again after Oreo Pixel Experience if have an encrypted partition.

To remove the encryption and prevent that problem with Oreo/TWRP ("wipe data partition before first boot" -- please read below):

https://xdaforums.com/showpost.php?p=72838673&postcount=4

("Stock Indian 19S have full encryption data" -- https://xdaforums.com/showpost.php?p=69227805&postcount=2)

[MENTION=7645350]Black_p3[/MENTION] I gave up (so tired) -- for now, maybe. Thanks for your support.

Best regards.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
I can understand you... I also gave up on it after 3 days and ordered a new fingerprint reader... Then I've discovered that I had it all done and I only needed the cold start...
[LeEco Le Max 2 Guides, News, & Discussion] cruizgaray:
I own a 4 / 32 GB X820 and have never had any problem with the fingerprint sensor. A month ago I bought a 6 / 64 GB X820 model and since first day the fingerprint sensor was dead (after working some minutes). I tried any possible solution but the qfil thing; nothing worked. Today, miraculously, the fingerprint sensor, works again!

I'm using AICP rom and I have installed the modem firmware. The only different thing I did was to install the Xposed framework and the Amplify module; I don't know where the magic came from but I'm sure it worths a try...

Enviado desde mi LEX820 mediante Tapatalk
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
Hi, I bought a brand new fingerprint reader and than I managed to repair mine software based... So now I can offer it for sale for someone who has an hardware problem (the price is the same as I payed for it 6€) This could be interesting only for people from Europe because anyone can buy one on AliExpress but if I send it from Slovakia it should arrive anywhere in Europe within 3 max 5 days and you don't have to wait for it 3 weeks... Anyone interested cam send me a PM...
[LeEco Le Max 2 Guides, News, & Discussion] POICHE:
new update 5.8.016 is arrived on official ROM and no more fingerprint issues or slowness !!!:D
[LeEco Le Max 2 Guides, News, & Discussion] Kiriakos2016:
Have you find the complete rom?How did you updated?
[LeEco Le Max 2 Guides, News, & Discussion] POICHE:
Official Stock Rom EUI 5.8 15s version + automatic system update :p

fingerprint works just fine.
[LeEco Le Max 2 Guides, News, & Discussion] sanke1:
[MENTION=7574272]POICHE[/MENTION]

Which ROM are you talking about? Indian 15S hasn't got an update yet.
[LeEco Le Max 2 Guides, News, & Discussion] magic_man:
The sensor might just be bad.
[LeEco Le Max 2 Guides, News, & Discussion] zealord7:
chinese rom bro, use 15s , then use OTA upgrade. very fast and i think this 1 solved the fingerprint issue.
[LeEco Le Max 2 Guides, News, & Discussion] sanke1:
Why to use 15s when you can directly download and install 16s? :p

Any way, none of the ROMs available to public, Chinese, Indian, US, CM, TeamSpain work correctly on VoLTE calling. The call drops within 5 seconds most of the time.
[LeEco Le Max 2 Guides, News, & Discussion] zealord7:
that time only OTA available for 16s.
[LeEco Le Max 2 Guides, News, & Discussion] ttinsb:
Hello,

the problem is not that it is slow or not reconizing the finger. With the international FW Version the sensor has no function at all! It is impossible to add a finger print. i contacted the support from gearbest. i am waiting for an reply now.
[LeEco Le Max 2 Guides, News, & Discussion] valy_cta:
Which firmware did you install, latest 016s?
[LeEco Le Max 2 Guides, News, & Discussion] talktoraj83:
I have same problem on EUI OS version 14S Fingerprint was working fine but after update to EUI 15S or 16S my Fingerprint not working and seems dead.
[LeEco Le Max 2 Guides, News, & Discussion] Kawalpreet Juneja:
So, did anybody figured out how to fix it 'cause same problem here. Got two update since bought the phone. When bought fingerprint worked correct till day, and after update work for an hour. After another update to EUI 5.8 figerprint sarted to work and all of sudden it stopped working.
[LeEco Le Max 2 Guides, News, & Discussion] angelus141083:
Same thing for me after 10 days of working the fingerprint doesn't work anymore
[LeEco Le Max 2 Guides, News, & Discussion] Schranzfreak:
on my device the sensor worked with the shipped os version but after the update its broken. now i updated and factory reseted the the device to version 5.8.016S build by cuoco92 but still its broken.

are there any news how to fix it or if its a hard or software problem?
[LeEco Le Max 2 Guides, News, & Discussion] SnowyNight:
Same issue here...

my fingerpritn worked at the start...wasnt thaaat great with 14s but usable somewhat..samew with 15s.. and on 16s it worked perfectly....for about 2 weeks..then from one day to another it stopped working completely..not misreads or anythign but it doesnt recognize anything at all..cant add a new one or stuff like that
[LeEco Le Max 2 Guides, News, & Discussion] Schranzfreak:
did already someone flashed the rom version as the sensor worked?
[LeEco Le Max 2 Guides, News, & Discussion] bahuy2003:
My mobile is updated stock rom 17S CN, after updating this rom 5 hours, fingerprints is stopping totally. I flashed other roms, but it still stop working.
[LeEco Le Max 2 Guides, News, & Discussion] vcs714:
Finger print scanner stopped working

Hi,

Besides the fingerprint scanner not working I face a very strange issue , whenever I start the camera app it starts clicking photos by itself continuously when in camera mode .

I believe it interprets that the sensor is being continuously pressed because I know that u can click photos by tapping the sensor

Are you also facing similar issue?

Regards

vcs714
[LeEco Le Max 2 Guides, News, & Discussion] bahuy2003:
No, i can't use fingerprints to make photos. Nothing was happened.
[LeEco Le Max 2 Guides, News, & Discussion] abufrejoval:
Technique seems important

I just got my phone with 15S a couple of days ago. Rooted and installed TWRP and created a backup, just to be safe.

I had never used a phone with finger print sensor before, but some other finger printing devices, some of which require you to swipe across them.

Either because of the old swiping type readers or because I was still learning to locate the sensor blindly (it's on the back after all), I always tended to slide my finger into position and stop then.

From my experience now, the sensor doesn't seem to like that: It wants you to briefly touch the sensor without any sliding.

This is especially important in the training phase, if you slide your finger into position on the first read, the results will go downhill from there.

I did have quite a bit of trouble unlocking the phone after my first training phase with my right finger index digit...and for some reason it seemed to work better with the index finger of my left hand (less sliding during training I'd argue now).

I did install a domestic chinese version of 16S for a short time after that, but when I got all that LeTV content thrown at me and found it was hard to disable, I went back to the original.

Both version changes resulted in the need to retrain and so the finger print reader seemed to work so much better on the 16S.

But it also did on the old 15S version, since by now I had intuitively mastered to avoid sliding.

I also tried varying the angles during training, assuming that that would make it more tolerant on reading later, but I guess that it doesn't really help (nor potentially hurt). There is so much processing going on that transposing fingerprint angle is nothing to the hardware.

I was also afraid, that it made a difference if the (not so trivial) weight of the phone would be resting entirely on the finger or if I held it with other fingers (squeezing/distortion effect?).

Less afraid now.

When it doesn't unlock, it's important to not wiggle around, but lift the finger off and start with a clean touch.

Initially I simply didn't know what to expect in terms of unlock time and believed it normal that it might take seconds to unlock: Came to believe this feature was rather useless.

But now I have unlocks in milliseconds and yet some confidence that it actually provides a measure of security (because unregistered fingers don't work).

I have identical twins so I'll do some experiments few of you will be able to repeat.
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I'm interested. Check pm.
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
My phone's fp got fixed (at least for the moment) by dropping it on the floor tiles lmao.

I literally dropped it by accident. Said let's try fp, it works now. It was a pretty big smash but the screen didn't shatter, it only got a small dent on the metal.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
That probably means that it was some contact error which magically jumped back to the right place... I was wondering why you are no longer asking for my reader for sale but I'm happy for you that you have it at least fixed... :)
[LeEco Le Max 2 Guides, News, & Discussion] darkside57:
it is no a hardware problem ! mine is dead after one week , after 2 month it s ok , i have installed cuoco and now figerprint is dead but if the fingerprint can take a foto it s a software issue , now i must wait a long time for this issue and the fingerprint was alive , you can try this method :

allround tech zone

allround tech zone

il y a 4 mois

HELLO GUYS , after a long research i found the solution of my lemax 2 finger print problem...

step 1 : download indian verion eui 5.8.016s version ... (no root required ) ..

step 2: install it

step 3: use ur main gmail after installing in mobile ..

step 4: open finger print app and click ok option for photos to capture ..

step 5: open camera app .. and try to take pics with fingerprint ...(if it captures ...close the application and try to open again finger print app ..try to add finger print if it add u r lucky )or else try next step ....

step 6: if pics not capture in camera app ... close the application and try to add fingerprint in finger print app.. if not succeedd ... don't worry ...

step7 : calibarte the fingerprint (note : don't try to add fingerprint now ) close the app ... and go for factory reset ...

step 8: after factory reset ... check the same finger print process again as given above methods .. now go to recovery clean all data ,wipe ,cache ... after that come back and check again fingerprint ...

step 9: if it works leave here and started working or else if not works install indian eui 5.8.019s rom and install it .... after installing .. use same methods as given (note: only use gmail which u given as above rom ) ..

this will 100% work ... carefully do every step ... it works i am sure ... i solved this problem in letv le max 2 and letv 2 and lemax 2 x829 ...

i tried all many roms and bull**** nothing works don't waste ur time ... try this method ... it works almost all mobiles..﻿
[LeEco Le Max 2 Guides, News, & Discussion] darkside57:
I confirm this solution fix the fingerprint issue . After many time on 19s I have make a señor calibration and all is OK . Step by step this solution fix the fingerprint issue . I don't know how ....but ok
[LeEco Le Max 2 Guides, News, & Discussion] giaur:
Everybody should realize LeEco fp sensor is rather poor. Don't expect too much, really it's poor.
[LeEco Le Max 2 Guides, News, & Discussion] t34v2:
where can I download eui 5.8.016s, you're writing about?
[LeEco Le Max 2 Guides, News, & Discussion] darkside57:
Hello all rom are in tread xda , https://xdaforums.com/le-max-2/how-to/le-max-2-official-stock-firmware-links-t3433761

Install 16s or 19 s ( wipe data and storage , After that , you must skip leeco , and enter Google account ! Do not take fingerprint skip , go to parameters and select take à picture ,go un photo and you must take foto , After go to fingerprint calibration , dont touch fingerprint , Maje à Factory reset , now make thé same but no wipe , and go fingerprint calibration , and now you Can registered tour fingerprint ,) this solution work , my fingerprint daed thé Fist week , with this solution all IS ok , when my fingerprint have no responce when i changé rom , i make this and working all thé time
[LeEco Le Max 2 Guides, News, & Discussion] dimmebd:
Flashed the 023S modem and BAM! it works!!! Thanks a lot!
[LeEco Le Max 2 Guides, News, & Discussion] colossus_r:
Can you share the link for that modem?
[LeEco Le Max 2 Guides, News, & Discussion] dimmebd:
Download under China folder (23S v0033 I think), link for download in this post: https://xdaforums.com/sho...&postcount=151

Flash the modem zip file by Twrp recovery.
[LeEco Le Max 2 Guides, News, & Discussion] colossus_r:
Thanks mate but link it's not working
[LeEco Le Max 2 Guides, News, & Discussion] siljaer:
My fingerprint sensor has not worked for a several weeks. Yesterday I noticed that logcat is full of messages that show that calibration of fingerprint sensor continuously fails. Can any other people with fp not working confirm the issue? I have disabled mine (build prop), but I could reenable it if a logcat is needed.
[LeEco Le Max 2 Guides, News, & Discussion] AhmadSant:
in my mobile, FP work only when take a photo , but not for unlock the mobile. i can't add any finger print. I tried different modem but not work at all.
[LeEco Le Max 2 Guides, News, & Discussion] darkside57:
tep 1 : download indian verion eui 5.8.016s version ... (no root required ) ..

step 2: install it

step 3: use ur main gmail after installing in mobile ..

step 4: open finger print app and click ok option for photos to capture ..

step 5: open camera app .. and try to take pics with fingerprint ...(if it captures ...close the application and try to open again finger print app ..try to add finger print if it add u r lucky )or else try next step ....

step 6: if pics not capture in camera app ... close the application and try to add fingerprint in finger print app.. if not succeedd ... don't worry ...

step7 : calibarte the fingerprint (note : don't try to add fingerprint now ) close the app ... and go for factory reset ...

step 8: after factory reset ... check the same finger print process again as given above methods .. now go to recovery clean all data ,wipe ,cache ... after that come back and check again fingerprint ...

step 9: if it works leave here and started working or else if not works install indian eui 5.8.019s rom and install it .... after installing .. use same methods as given (note: only use gmail which u given as above rom ) ..

this will 100% work ... carefully do every step ... it works i am sure ... i solved this problem in letv le max 2 and letv 2 and lemax 2 x829 ...

i tried all many roms and bull**** nothing works don't waste ur time ... try this method ... it works almost all mobiles..﻿
[LeEco Le Max 2 Guides, News, & Discussion] AhmadSant:
I followed your steps but not worked :(
[LeEco Le Max 2 Guides, News, & Discussion] darkside57:
It working for me all the time when i lost my fingerprint sensor after a flash ! Try calibration fingerprint and restore phone now try to add a fingerprint .
[LeEco Le Max 2 Guides, News, & Discussion] siljaer:
Just my 2 cents about fingerprint sensor. Mine had not worked for weeks, no matter which ROM or modem I flashed. Today I tried latest cuoco92, installed with its recovery (remember to backup internal storage!). I calibrated the sensor, and it started working again, though I was not able to add a fingerprint. Then I flashed official TWRP and restored my backup of LOS 15.1 official and I flashed 19s modem (I have a x821). Now it's working, even with some glitches (the phone reboots when I stop during fingerprint add).

So, it was not a hardware problem as I thought, but a software issue. I think that calibration with cuoco ROM (very similar to stock) made the trick.
[LeEco Le Max 2 Guides, News, & Discussion] dimmebd:
Sorry!

I was trying to link the original post which is this one:

https://xdaforums.com/showpost.php?p=71613937&postcount=151

But Here it is the direct link to the folder
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
I see you guys (ladies also :) ) still seem to have a problem with the fingerprint reader... I'm a bit confused because I've fixed mine months ago and thought this issue is solved. I know that the modem 466d works (also for unlocking). The only thing I can advise you considering this issue is that after flashing the modem firmware in TWRP don't forget to truly turn off the phone. Restarting after flashing the modem won't work to fix it. I think that for some energy saving reasons restarting the phone doesn't reload the firmware... I also heard that all modems from 19 up are working but can confirm that the 466d does for sure... So after flashing the modem turn off the phone completely, wait a few minutes and turn it on again... At least it worked for mine x820... (Btw I'm using the "pixel experience 8.1" ROM)
[LeEco Le Max 2 Guides, News, & Discussion] AhmadSant:
Can you provide me the link for (466d modem) please.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
I've found this one... It's not from my account but the link seems to work...

https://yadi.sk/d/woKdrlRrv8yhr/Для разработчиков

I've just tried the link... Just a tip... After clicking (touching) the 466d it appears to want to download it to the same server... Just click the 3 dots icon (the one lower in the screen) and choose download... (Haven't tried the modem this time but I believe it's the correct one...)
[LeEco Le Max 2 Guides, News, & Discussion] surfersea:
In fact I had the problem and tried a lot of solutions. Yours did it !!!

In the past I tried the 466d too but I only let the system reboot. So the trick was the shutdown and waiting, I imagine to allow the capacitors to discharge. Anyway, before yesterday, I thought it was an hardware problem because even the photo app couldn't make use of the fingerprint. I'm using AICP Oreo 8.1 fyi.

Thank you Black_p3 :good:
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
Always glad to be helpful... :)
[LeEco Le Max 2 Guides, News, & Discussion] mic31:
Thanks my friend, mine is working too. I have du 12.2

Thanks again
[LeEco Le Max 2 Guides, News, & Discussion] siljaer:
I am starting to think that part of the problem with FP and custom ROMs is calibration. Stock ROMs have a separate app to calibrate the sensor while it looks like custom ROMs have not, yet calibration is performed automatically and, judging from logcat messages, it often fails.
[LeEco Le Max 2 Guides, News, & Discussion] k3npachi:
Recording the same finger several times works well

After on mine I have no problem, it works in 1/4 second
[LeEco Le Max 2 Guides, News, & Discussion] ClaudiuLis:
The only way to fix the fingerprint is by replacing the sensor. I ordered one, it was also broken, the second was ok. The procedure is not that complicated, you just need a hair dryer and something to stick to the display so you can remove it.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
For most people installing a newer (for example 466d) modem firmware solved the issue but there are some phones which seems to be really with defective hardware...
[LeEco Le Max 2 Guides, News, & Discussion] pasa96:
Hi guys FINGERPRINT FIX

Yesterday my wifi give up to work.

So i need to fix it.

I saw there was an updated CN Rom! ( 30s )

Le_x2_x820-cn-fn-fexcnfn6003007117-6.0.030s

IT BRINGS MY FINGERPRINT BACK TO LIFE!

PLEASE SHARE IT

AFTER THIS WORK I FLASHED AOSPEXTENDED 5.7 X2

EVERYTHING IS PERFEKT
[LeEco Le Max 2 Guides, News, & Discussion] TheLastCanadian:
That may well be. I just wish I could link those integers to error codes, but I had no luck when I was poking around in the ROM source. I wonder if a periodic EUI calibration would keep these working nicely..... Is there a particular reason the calibration app couldn't be ported? It may be the solution to this whole mess.

As an aside, I've replaced my FP, but recently I've started getting a sleepy sensor. Does anyone have any suggested fixes for that? I'm on modem D66, AOSPEx 8.1 latest build.
[LeEco Le Max 2 Guides, News, & Discussion] bwalter:
I'm wondering if anyone has seen behavior similar to this (I'm using Lineage 14.1 and now 15.1)

Able to add fingerprints with ease. I.e. going through the steps of touching the sensor multiple times works well, each touch registers almost immediately.

Unable to delete fingerprints from OS. When selecting the trash can, the fingerprint entry is greyed out, but if you exit the settings and go back it's still there.

Unable to unlock the phone with registered fingerprints. Lock screen responds quickly to the first touch with "Not Recognized" and does not respond to further touches.

I was able to use TWRP to delete fingerprints following these instructions: https://xdaforums.com/android/help/guide-delete-fingerprint-profils-via-t3686722

I think perhaps flashing to an EUI ROM temporarily may resolve this issue, but I'm curious if anyone has encountered these symptoms. Before they started everything was working well with Lineage 14.1.
[LeEco Le Max 2 Guides, News, & Discussion] sasaelbhiry:
you need qfil firmware here is the guide https://xdaforums.com/le-max-2/how-to/fingerprint-fix-dead-fingerprint-t3809024
[LeEco Le Max 2 Guides, News, & Discussion] AgustinH:
well, I installed a very good app to see all the specs of the phone and in fingerprint says "unsupported"...so, it's better if I buy an FP new before change the rom, right? The FP doesn't work from days that I buyed
[LeEco Le Max 2 Guides, News, & Discussion] valy_cta:
Mine died after 3 years of use. It wasn't the most reliable one, but it sure did its job. I feel forced to use the PIN or face unlock now.
[LeEco Le Max 2 Guides, News, & Discussion] ahamzzz:
Hey ya guys , I also have an problems with fingerprint..

I have been reading this topic and I wanted to try modem 466d can someone share a link for it please?

Thank you.
[LeEco Le Max 2 Guides, News, & Discussion] valy_cta:
https://mega.nz/#F!xuZiDD7Y!K1h_YFcSj1Cpn8bUILAUGw