yashsingh1/xdaforums huggingface dataset:
[LeEco Le Max 2 Guides, News, & Discussion] ygyrkiller:
I do but not working :(
[LeEco Le Max 2 Guides, News, & Discussion] ThE_MarD:
Hmm darn you might have a hardware defect. Hopefully the device is within manufacturer warranty. I'd recommend reflashing your device via fastboot and enable the bootloader lock again and if the fingerprint reader still won't work to then contact LeEco and request a warranty repair.

I wouldn't tell them you flashed any custom ROMs of any kind as I believe LeEco considers unlocked bootloaders as a violation of warranty.
[LeEco Le Max 2 Guides, News, & Discussion] ygyrkiller:
Thank you for help but ı havent got warranty :( i live in istanbul(Turkey).
[LeEco Le Max 2 Guides, News, & Discussion] alveox:
What is the point on those method..
[LeEco Le Max 2 Guides, News, & Discussion] sonybhet:
For finger print problem solve

---------- Post added at 05:04 PM ---------- Previous post was at 04:58 PM ----------

Check i have given solution
[LeEco Le Max 2 Guides, News, & Discussion] didiloro:
Nice!! Got it working! But when I restore backup to get to what I had in the phone it stops working... Does this mean FP works only in stock firmwares?
[LeEco Le Max 2 Guides, News, & Discussion] Cyberwitch13666:
Hello, has anyone been able to get the FP to work again with Lineage OS? Mine died after 2 days of having the phone, for a while the camera function worked but would not unlock, I tried many of the methods described here, reinstalling ROMs, upgrading firmware etc. I love the Lineage OS 14.1 and everything else in the phone works like a charm, but the FP sensor is dead. Some people mentioned the process com.qualcomm.qti.biometrics.fingerprint.service, I don't have that at all in my phone, I have other Qualcomm processes and services, but not that one.

Anyone knows any other things I could try to get it to work with my current ROM?
[LeEco Le Max 2 Guides, News, & Discussion] kkcheong:
This phone is not meant to be flashed. Any flashing or rooting will kill the fingerprint. So stop asking for solution if you insist on flashing.
[LeEco Le Max 2 Guides, News, & Discussion] valy_cta:
I don't know why you insist on this... My phone is 1.5 years already and I flashed it a lot, no problems with the FP scanner. And how do you explain that some people come here with broken FP with stock ROM?! There is some sort of problem with it, nobody knows what, but seems like replacing it will do the trick.
[LeEco Le Max 2 Guides, News, & Discussion] kkcheong:
Majority of those with Fp problem is using non-stock ROM.
[LeEco Le Max 2 Guides, News, & Discussion] popoyaya:
What's the point of being on XDA then?

I got my phone a month ago, flashed about 10 roms so far. Finger print scanner, camera, everything work perfectly.
[LeEco Le Max 2 Guides, News, & Discussion] yanoos:
True, I tried few ROMs, using Slim7 now and fingerprint works nice. I am new user of Le Max 2 and I am not shure if it's hardware or ROM problem.
[LeEco Le Max 2 Guides, News, & Discussion] Reventon571:
My phone's fp is dead in stock rom itself within 2 weeks of usage,. It's not with the Flashing,.
[LeEco Le Max 2 Guides, News, & Discussion] mwarner:
What utter nonsense.
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I joined the dead fp train too. The fp on my x820 worked for like 3 hours while on 26s, then it decided to die. Tried all firmwares possible, it's still dead. Using lineage. Maybe you guys find something.
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I spent all day long trying everything, returned to stock to calibrate fp, it catches a touch whenever it wants... I think holy water is the last resort.
[LeEco Le Max 2 Guides, News, & Discussion] jman0:
Before the holy water, or the Indian rain dance, you could also try the method that revived mine for a while. It died right after and didn't recovered, but you loose nothing by trying. It involves draining the battery down to 0% and charging again.

https://xdaforums.com/le-max-2/how-to/fingerprint-t3634931
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
Tried your method, still nothing. It has a big delay when it does catch a print, most of the time not catching any, and after I get somehow to enroll a print, it sometimes unlocks by itself.
[LeEco Le Max 2 Guides, News, & Discussion] realsatnav:
i am wondering if this https://xdaforums.com/le-max-2/how-to/le-max-2-finger-print-t3408395/post71292053#post71292053 procedure from [MENTION=2392066]Lizard82[/MENTION] works for everyone. or did you just not try it out? because people continue posting about the problem. :confused:
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I'm on official lineage right now and I'm missing that process, double checked all apps and included system apps, nothing. Should I go back to eui and check that?
[LeEco Le Max 2 Guides, News, & Discussion] realsatnav:
i don't own the device (yet). but trying to figure out if a permanent fix exists. but this is also an interesting information, because i would like to run it on lineage. :(
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
You know what, replacing the fp is pretty dangerous, because you have to remove the screen first, which is very thin and prone to shattering... I will continue to pray until one day it fixes by itself, like it happened to other people. Hail Mary, my friend.
[LeEco Le Max 2 Guides, News, & Discussion] kihope12:
Mine was deas, but it got fixed by flashing CN 23S rom, did you tryed latest beta of CN 28S? It have new FP improvments..
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I'll wait until someone confirms it's legit then I will try it.

Plus, I don't want to install a full ROM.
[LeEco Le Max 2 Guides, News, & Discussion] kihope12:
If you dont want install full rom, then there is nothing to talk about buddy ._.
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
Someone will post the firmware zip which is the only thing some of us need. The firmware files contains all the fp, modem, maybe camera (I don't know) files we need.
[LeEco Le Max 2 Guides, News, & Discussion] kihope12:
You propably didnt get it, flashing modem can improve your FP, but if it is dead it doesnt help you, i told you, my FP start working after reflesh of EUI 26S rom, if you dont want reflash your rom or if you didnt even try it, them please stop spaming with your sad post about Dead FP

... Have a good day.

If you can found 26S eui, search on forum
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I restored the backup of the stock ROM. Still nothing. It's hail Mary my friend, haven't you heard about the stories where the fp came miraculously back to life?
[LeEco Le Max 2 Guides, News, & Discussion] kihope12:
I cant help you if you dont understand, or maybe you are trying troll me, whatever...
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I'm not trolling. It's useless to flash the whole ROM. I tried that and nothing happened. The only thing that can make a difference is the firmware file inside the ROM.
[LeEco Le Max 2 Guides, News, & Discussion] kihope12:
Say what you want, flashing full system recover my dead fingerprint, flashing backup isnt same, but your FP is dead not my (thankfully)
[LeEco Le Max 2 Guides, News, & Discussion] Tscope:
Madsufer's Rom based on 23'S made my laggy FPS fast, accurate and responsive.. but I actually never really used it as this extra premium security option it is,, here 200 km from "everything" people mostly just care their about chainsaws, riffles and how to smoke and dry meat on their perfect ventilated loft's, no thefts, so my FPS lives a sadly disabled life in unusable loneliness. BTW a friend of mine an entrepreneur never had any of his most definitely Premium devices FPS's working flawlessly,, due to that quite simple reason that he is working and crafting with his hands, so his fingerprints has somehow been sanded down to a minimum, but we found a simple solution,, he started to use his quite unused little finger instead of the pointing or middle finger :cowboy:
[LeEco Le Max 2 Guides, News, & Discussion] typos1:
I ve had an X829 since April, its great, I love it never had a problem with the fp, other than it was a bit slow on the EUI version the phone came with (cant remember which) but I put RR on it and flashed modem 419 almost as soon as I got it and the fp works first time 95% of the time (dont think the fp on any phone works 100% of the time).

Anyway, before I got my X829 I checked the 4G frequencies my operator (vodafone UK) uses - 1800, 2100, 2600 and 800. The X829 only lacks 800 (band 20) so I thought I d be fine.

I was wrong - Vodafone mostly transmits 4G on 800, the other frequencies only work in some areas, so no 4G for me, well I get it if I m in some cities (London, Birmingham, Southampton) but not where I live or even nearby.

So I ve been looking for an X820/1/2 at a good price and hoping vodafone would use 1800/2100/2600 in my area, no joy with vodafone but I found an X820 at a good price.

So I got it . . . and the Fp doesnt work, no problem I thought, having read about it in threads (mainly custom ROM threads, not fp threads, never needed to read them) I was pretty confident flashing a modem and or RR would sort it.

Wrong again - I ve spent 3 whole days doing everything I could find on here and elsewhere trying to get the fp working (flashing ROMs, custom and standard, flashing modems, constantly calibrating the fp, using couco92's recovery with the fp fix in it, installing this app, installing that app, turning this off and that on whilst standing on one leg with my left arm in a bucket of water and counting to 50 with a bag over my head, etc) and . . . nothing. Well, today I have managed to get the camera to take a picture after about 5 seconds using fp . . . about 35% of the times I try, on couco92's 26s ROM, but it wont register an fp at all, nothing happens and then it times out, its always the same.

I think I m just gonna send it back for another one, I was offered a partial refund if I could get it repaired, but I just cant, I could replace the fp but in my experience the screen never sits properly after being repaired.

Just posting here to see if anyone had any suggestions before I return it.
[LeEco Le Max 2 Guides, News, & Discussion] realsatnav:
so flashing specific modems in lineage OS does also not bring a reliable FP sensor?
[LeEco Le Max 2 Guides, News, & Discussion] Double Chin Bigot:
I flashed all modems possible, excepting 28s which is pretty new and not full blown yet, with no success.. I'll try that as well, I heard 28s has further FP improvements, let's hope.
[LeEco Le Max 2 Guides, News, & Discussion] estofp:
My personal experience and how I solved the problem with the fingerprint reader

Hello good day to every one.

First, excuse my bad English; I decided to write here because I also had the problem of the fingerprint reader with my LeEco le max 2 and I have also tried to solve it in all the possible ways that are described here and I never had it, the only thing that worked for me so far was by accident so to speak.

So I'm going to explain how I fixed it; I bought a new fingerprint reader with the hope that this solved the problem but it did not work, then I disconnected the new reader and connected the old fingerprint reader and proceeded to calibrate it and the whole process to add a new fingerprint and oh Surprise worked; I removed the new reader from the phone and installed the old reader and stopped working again, so I did the process of calibrating and re-adding a new fingerprint and it did not work, so I recalibrated it and formatted the system, when the phone started again I did the initial configuration process configuring the footprint and it worked, this has been my experience and I share it with you with the hope that it can be used to solve the problem with your fingerprint reader.

If you have any other questions, I will gladly answer it, I hope it can help you, I thank you all for your attention; Until another chance.
[LeEco Le Max 2 Guides, News, & Discussion] sonik777:
Hi there my X820 is suffering the same problem. I flashed Couco92's 28s yesterday and set everything up, fingerprint sensor worked a charm on setup and for about 3 hours then it suddenly became unresponsive. Its out of the blue and very annoying. I flashed to 23s modem from twrp but still nothing. When you say you 'Formatted the system' what do you mean? Did you factory reset? Did you TWRP / wipe / system? Any insight would be appreciated, N
[LeEco Le Max 2 Guides, News, & Discussion] estofp:
hello good day,

please read well what I wrote; the reader worked again because I unplugged it from inside the phone and reconnected it, then calibrated it and proceeded to reset it from the factory.
[LeEco Le Max 2 Guides, News, & Discussion] geekch:
The solution is to do a deep restoration of QUALCOMM, in this way the flickering and the fingerprint are solved https://xdaforums.com/le-...s-usb-t3492949

Therefore, you have to do a series of steps and put a file called lemax2QFil .. It is assumed that this is like a recovery mode Qualcomm

Pues hay que hacer una serie de pasos y meterle un archivó que se llama lemax2QFil.. Se supone que eso es como un modo de recuperación de Qualcomm..

https://t.me/LeecoLeMax2Chat/24159
[LeEco Le Max 2 Guides, News, & Discussion] cgigate:
How do you

"formatted the system, when the phone started again" ?

No such thing "formating the system"
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
Sorry but this solution just don't work. I tried it on my X820 and it got me to an wrong displaying of the screen split in the middle (even in twrp) which I had to solve trough reinstalling the 23s firmware (newer might work too, it's just the one I used)...
[LeEco Le Max 2 Guides, News, & Discussion] estofp:
Hi good day,

Format is factory restore by recovery or from Android.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
I finally managed to fix the fingerprint reader... The small but important thing I missed is that after flashing the modem firmware you have to turn off your phone and cold start it... That worked for me for my 6/128 X820 phone running Pixel experience (8.1) and I used the 466d modem... I hope this will help someone...
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
Here's everything I've done to fix this issue...

Of course... I like to help people... I will give you every step I did to get it fixed...

1. I installed Pixel experience ROM (it's the only stable Android 8.1 for this device by now) ( I'm mentioning this only to avoid other issues which could be caused by the ROM you are using)

2.download the modem firmware for le max 2, there are many to choose from but I used 466d ( you can find the link on XDA forums by searching for le max 2 modem firmware)

3. Install the firmware zip (466d) trough TWRP without cleaning the dalvik cash

4. ( Now comes the step I missed completely and is essential) you have to turn off the phone and wait a few seconds and then turn it on again... ( This step is necessary because if you don't do it the phone will not read the new firmware for the device)

5. Now go to settings and set the fingerprint reader up...

That's all enjoy... :)

(If these steps don't help you it might really be that you have a hardware error and I can't help you with that, but I believe it will work)
[LeEco Le Max 2 Guides, News, & Discussion] cgigate:
Not working .....
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
That's interesting... You are the first for whom it didn't work... But as I said, it's possible that you really got a hardware problem...
[LeEco Le Max 2 Guides, News, & Discussion] typos1:
It didnt work for me either - I went from a totally dead fingerprint sensor to being able to add 5 fingerprints, but it would never unlock the phone.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
I really don't think I did something else than what I wrote... But I was working on it for 3 days so I might have forgotten something... It worked for me and others too... My error was that I didn't turn off the phone after installing the modem firmware... After the cold start it worked and is working till now (only 4 days by now but I don't believe it would change)... If you find something out please share your experience...

---------- Post added at 06:53 PM ---------- Previous post was at 06:52 PM ----------

In your place I would also try the 26s modems... Might do the trick....

---------- Post added at 06:57 PM ---------- Previous post was at 06:53 PM ----------

And by the way, did you tried it on the Pixel experience 8.1 ROM ?

---------- Post added at 07:03 PM ---------- Previous post was at 06:57 PM ----------

I remembered another step I did and forgot to mention... I also made a clean install of the 23s global ROM to repair the split screen issue I got by flashing the QFil...
[LeEco Le Max 2 Guides, News, & Discussion] typos1:
I got an X820 to replace my X829 (which never had a problem with the fingerprint sensor), after 3 days of trying everything but the Qualcomm recovery thing, I sent it back and got a replacement X820 which is fine. I guess it was a hardware problem.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
I personally believe that this could be a dual problem, someone like me had only an older modem firmware installed and others have a real hardware issue...
[LeEco Le Max 2 Guides, News, & Discussion] jman0:
Mine was a hardware issue, while many others just had to flash something (modem firmware, another rom, qualcomm recovery files, etc.) since they had software issues. I returned mine, got a refund from Paypal and just bought a different phone
[LeEco Le Max 2 Guides, News, & Discussion] cgigate:
it is hard to say it is a hardware issue.

many people even purchased a new sensor, but got same result ...

it is the problem no one figures out yet,
[LeEco Le Max 2 Guides, News, & Discussion] NextGear:
Please, verify if the sensor is alive o "Tap to Shoot" function.

I notice that the sensor of my device is not completely dead, but a sort crazy, because if the "tap to shoot" function is enable, the camera app shoot - "automagically" - photos like a "paparazzi" (more then one per second) without anything tap / touch on the sensor; the camera app receives "false tap / touch responses" from the sensor, so the sensor is still alive, but a kind very sensible -- how the change the calibration values manually? -- or defective. We awaiting your feedback.

(My device came with "Indian 16S", but the fingerprint function was not very responsive. Updated to Indian 19S and the fingerprint become very responsive, but only for 5 days, so it became poor responsive. Tried calibrate, add new fingerprint, but after and after these processes, it became like "dead" (no response at all -- even a vibration; nothing). "Fabric Restore" the ROM did not change the situation, and update to Chinese 23S and Chinese 26S did not turn the fingerprint sensor back to life. So I tried the "QFIL process", but even with the DEV ROM, nothing happens to capture the fingerprint. So i installed TWRP to change ROM (the DEV ROM does not update with any update.zip stock ROMs - "corrupted file" error) to Indian 16S again, and updated - by "update.zip" file (now it works) -- to 19S again)

[MENTION=7645350]Black_p3[/MENTION]

I had no success. Installed "466D_V.00050" modem zip file on TWRP, restarted ("holding the power button" -- how to do a "cold start" if when we hold the power button on TWRP the device restarts itself?), confirmed the new modem version on "About the Device / Base Band", but the fingerprint sensor on fingerprint register application still unsresponsive. I also installed "CN_26S_V.00033", same result. So, I installed again the "466D_V.00050" only to test if a new Stock ROM subscribes that. I updated (update.zip process) the 19S Indian ROM with the CN 26S ROM, and yes, the modem version turned to the CN 26S version (MPSS.TH.2.0.c1.9-00033-M8996FAAAANAZM-1) -- without any modification on the fingerprint malfunctioning.

The device is now with the CN 26S ROM, like said above.

If I had any updates about the fingerprint problem, I'll update it with a new reply on this topic.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
You do a cold start by turning the device off, wait for some time (so all power leaves the circuitry) and turn it on again...

---------- Post added at 11:24 PM ---------- Previous post was at 11:22 PM ----------

As I said, I think it's an dual issue... Maybe the people who replaced the hardware also had the firmware problem...
[LeEco Le Max 2 Guides, News, & Discussion] NextGear:
But that is the problem. How we can do that? Like i said on my message above:

"How to do a "cold start" if when we hold the power button on TWRP the device restarts itself?"

It restarts after modem patch in TWRP even when we hold the power button to force the shutdown on TWRP screen (to not use the TRWP restart option after patch). We can't "turn it off" to be "turned on" when we can (a cold start), because it's restarts automatically after leave TWRP, even with the power button. But, like i also said, the modem was changed anyway after restart, because de modem version changed in "About / Base Band".

The fingerprint sensor back to functioning properly after TWRP Modem Patch, even when the device was on 23S ROM? Or it back only Oreo 8.1? You installed Oreo 8.1 (Pixel Experience?) and patched the Modem (466D), or did it on 23S ROM, then verified that the fingerprint back to normal, and quickly you changed the ROM to Oreo 8.1?

Also like i said, i noticed that the sensor of my device is not completely dead, but a sort "crazy", because when the "tap to shoot" function is enabled on fingerprint section, the camera app shoot -- "automagically" -- photos like a "paparazzi" (more then one per second) without anything tap / touch on the sensor; it's like the camera app receives "false tap / touch responses" from the sensor. So the sensor is still alive, but a kind very sensible -- how the change the calibration values manually? -- or defective.

Thanks.

Best regards.
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
[MENTION=8772628]NextGear[/MENTION]

Ok, that's a long question, but I'll try to answer all of it...

First the cold start must not be right after the modem install... I installed the modem a day before, and as it was not working I've left it that way and practically gave up. The next day I've read that I must do a cold start so I did it and the sensor worked again...

To your next part of the question... When I installed 23s global the fingerprint didn't work ( I only needed it to get rid of the split screen issue I've got by following a wrong guide). But you should be aware that the 23s ( and all other official ROMs like 19s, 26s...) have their own firmware included. Most custom ROMs do not overwrite the firmware.

But if you want to duplicate my results I would advise you to use the Pixel experience 8.1 ROM ... There has been a new update yesterday and someone mentioned it fixed his fingerprint issue after installing 466d over it...

I hope this helps...
[LeEco Le Max 2 Guides, News, & Discussion] Black_p3:
I read on the Pixel Experience forum today at least 2 post that says that the newest update (February 2018) of this ROM + the 466d modem solved their problem with the fingerprint reader... For those who haven't solved it jet...
[LeEco Le Max 2 Guides, News, & Discussion] salafiharis:
My works again

I had ommi rom installed, then i full formated it and installed lineage rom 14.1 , my fingerprint scanner started working, and is fast