yashsingh1/xdaforums huggingface dataset:
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] mikerofone1:
Same goes for calls via whatsapp, so the bridge between mic/audio and call apps must be missing. Recordings and such are working fine..

I know remember that I had MIUI 8 installed, do I maybe have to upgrade to MIUI 9 before? Can someone maybe shortly explain how to.. ?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
I came from MIUI9 beta to LineageOS, but i think it should not matter, since you wipe everything, and the latest firmware is embedded now in the rom.

Do you have the 2gb/16gb version of the phone by any change?

Maybe that is the difference?

I have the 3gb/32gb edition.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] mikerofone1:
No, I have the same device (this one). Tried to restore the backup, which is also not working (Mi-Logo appears and nothing more). So back on Lineage with no call-function and no fingerprints.. don't know what to do next.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] mkonredmi4x:
I downloaded and flashed the MIUI 9 image from http://en.miui.com/download-323.html

--> Fingerprint and call audio (in + out) are positively working. Also the rest seems to run smoothly. (It's running an hour now.)

However, I am now not able to flash TWRP and hence also not LineageOS. TWRP requires a password (which I don't know) and without it, wiping and flashing TWRP do not work.

As before, I tried lazyflasher, but that didn't change a thing.

So now I can call, but am stuck with MIUI again (although now Android 7). :rolleyes:
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Very strange, i have the same phone/deal from Gearbest :P

Just download the rom from official site, Advance wipe everything except SDcard.

Flash the rom from:

http://en.miui.com/download-323.html

That should be it.

---------- Post added at 11:13 AM ---------- Previous post was at 11:12 AM ----------

Just press cancel on password prompt :P

The advanced wipe should take some time

, because the data is encrypted, but it should work...
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] mkonredmi4x:
Just press cancel on password prompt :P

The advanced wipe should take some time

, because the data is encrypted, but it should work...[/QUOTE]

And that did the trick. I got phone working (fingerprint also works) on the lineageOS image from 2017-11-22.

To wrap up:

- flashed the latest MIUI 9 from Xiaomi

- flashed twrp as recovery

- wiped everything

- rebooted to recovery

- flashed lineageOS 2017-11-22 and opengapps pico

- rebooted and voila

I don't know what the issue was. I don't know whether flashing MIUI 9 helped (I just did). On my first try, I used the opengapps nano package, this time pico. Maybe this was the difference.

However, I got it working. Thanks a lot for pushing me through, Mister Advanced.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] joha386:
On some other phones and ROMs I experienced mic problems during calls once this freaking Google Now "Ok google" feature was installed and activated. This somehow prevented the audio in via the mic on normal calls. Might be the same behaviour here. once deactivated / removed everything worked like a charm again.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] mikerofone1:
Thanks for advice! I did the exact steps, flashed MIUI 9 before and I can make calls again :good:

Only thing still not working are fingerprints ..
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Thanks for advice! I did the exact steps, flashed MIUI 9 before and it worked out. Only thing still not working are fingerprints - but I can make calls again! :good:[/QUOTE]

That's great to hear :)

Hopefully other users with the voice/fingerprint problems take note of this solution!

Maybe i should have noted that i also picked Gapps PICO, just want the appstore to work, the rest is just garbage if you ask me.

And you can install the other apps after worth, if needed.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] mikerofone1:
Fingerprints still won't get recognised on setup, so if anyone has more ideas.. ;)

Would be awesome to resolve this, love this OS!
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Hope for you guy's that [MENTION=7500669]TingyiChen[/MENTION] make a note :angel:

Since the [EOL] stamp has been removed ! \party :D

Myself im kinda a conspiricy thinker, so i dont use it :P

I'm hoping more that [MENTION=7500669]TingyiChen[/MENTION] can find a solution to the loud phone conversation volume :o :angel:

AND YES...!!! This OS is awesome if not the best :)
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] danijerez:
how do you deactivate it? I can not get it to work
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] pablo.see:
I've got problem with lagging camera app. Photo whose taken 0,5-1 second after pressing shutter button. Front camera is working fine. After changing firmware version to 27 problem is solved. v25 and v26 give's delay
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Nautilus99:
Hey there, for me this can be the best custom ROM out there for redmi 4x because of its stock experience out of the box, I was stuck at MIUI 9 with the felling of a bigger battery but then with this I saw that it's better in fact I switch to lineage because MIUI doesn't have dat stock feeling or the smooth animations and the clean feeling that lineage is gives with magisk mods it gives the stock functions that are missing like the Google camera with hdr+ also I added viper4android

So my only question is why the lineage sistem is consuming more battery? Some times it switches the name to Android system, if there's a fix or a solution for that I would be happy I am used to have screen on first haha :) please reply to fix this
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rkdok23:
I think all these problem is because of the firmware included in this rom . I was using MiuiPro 7.11.23 with latest v27 firmware and flashed 10.11.17 build and everything seemed fine. Will flash this build now and see.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
Volte not working with latest version
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] uan:
i just realize that my IMEI is UNKNOWN. Can i restore from EFS twrp backup?

.

Update: Restore EFS from twrp not successful. But i still can call and sms, which the reason i didnt chk the imei in the first place.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
*#*#4636#*#* also confirms it is off for me :(

---------- Post added at 05:39 PM ---------- Previous post was at 05:21 PM ----------

Sounds more a like "superficial fault \ minor flaw", then a real issue?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] SagarSehwag:
Flash MIUI 9 Beta via Fastboot method, Than reflash the LineageOS 29/10 Edition.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Was also thinking about flashing back to that version, but i experienced the low cellphone signal that has been resolved in the latest version :S

Gues nothing more to do, then to wait on the new release... since the EOL status has been removed :D:D
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] ankutsa:
Hey, whats the diff between this rom and Resurrection Remix, which is based on Lineage ?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] avathar:
Hi,

1. is it possible to use Titanium backup on this rom ?

2. i have error 7 on installation. (my bootloader is not yet unlocked).

I had previously xiaomi.eu_multi_HM4X_7.11.23_v9-7.1.zip and phone was rooted.

Before flashing i did wipe Dalvik/cache/system
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] kidddd66:
Yes, I used it but my version 7.2.4 that i used since kitkat didnt work so i needed to download the newest - 7.6.1. Took me a little while to find where was the problem with my backups not restoring.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] uan:
Yeah. Facing this too. Battery performance drop, from great to not great. Any fix / workaround?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
[MENTION=7500669]TingyiChen[/MENTION]

Nice! , thanks for the new rom :D

I know that it is ALOT of work to make a rom and tweak it, but have you found a solution for the loud phone conversation volume in this new rom also?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] TingyiChen:
Here is not loud?Will see tomorrow...
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
You'll notice it when your in a quiet room, also you'll see the phone conversation slider volume won't go any lower at around 20/25%.

Thanks a lot in advance!

I really appreciate your reply, and all the hard work you are willing to put in this ROM :D

Thanks for the awesome support!

VolTE was also not working in 22/11 rom, is this also fixed in this new rom?

The xx/10 rom had it working.

But this is a secondary complaint :P

I don't really mind, just a observation ;) :P
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] TingyiChen:
Hmm tomorrow will push fix
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] livingongh325:
FLAC not playing in the music app.

FLAC audio files don't play in the music app. When i selected a flac file, it just skipped that track and went on to play other files.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Try a other music player, FLAC is a common problem with android.

Most of the time i just convert FLAC to mp3.

---------- Post added at 08:48 AM ---------- Previous post was at 08:46 AM ----------

Awesome! expect a donation coming your way then for all the hard work :D
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rkdok23:
Is fingerprint and call bug fixed ?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Please, read\inform yourself first before commenting.

The new rom fixes the fingerprint issue, see previous posts about the "call bug"
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rkdok23:
Sorry My Bad . Can i use micro gapps with this rom ?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Np, great to hear :)

Yeah you can pick any version you want.

I recommend: PICO , this will get the appstore working, the rest of the apps you can download after worth, but a lot is just junk if you ask me....
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rkdok23:
Okay thanks
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
After flashing the latest version my volte gone.before this I'm on aex with v025 firmware.

Even I flashed miui 9 with fastboot and still no luck.

Tried different roms. all working fine even mobile data but I'm not able to make or receive calls.volte is most important for me.

Pls fix this as asap
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
The new firmware V0.26 is built in this LineageOS build.

See my previous posts, [MENTION=7500669]TingyiChen[/MENTION] is aware of this issue, and working on it.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rkdok23:
I flashed this rom from RR and currently i m on v26 firmware but volte works .
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
If you dial: *#*#4636#*#* , do you see VoLTE enabled under: Phone Information?

Probably: VoLTE Provisioned ,is slided out.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] AndyYan:
May I ask where's the device repo used to compile this? OP only has the kernel repo, and there's no corresponding device repo under the same Github user either.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
That's a too advanced question for this system-administrator :P

Maybe you can better pm the dev directly :P
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Anonymouspal:
Volte gone ;----;

Thought its firmware issue so flashed v25 firmware but after that not able to boot into recovery
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
TingyiChen, warned about that in the release notes

Please, read\inform yourself by reading some previous posts about VoLTE
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Anonymouspal:
How to boot into fastboot or recovery now? ;-; help plox
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] uan:
Turn off. Do the 3 button routine.

Update2: I restore to miui 9 stable. IMEI is there at *#06#. Reflash lineage, again IMEI unknown. Still, no problem for data, calls and sms.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Anonymouspal:
Three button routine not working. ;-;
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Volume down + power ,for fast boot also not working?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] SagarSehwag:
Flash MIUI 9 Beta, Then flash the LineageOS 29/10 or

Resurrection, This worked for me.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] mikerofone1:
First of all, thanks to [MENTION=7500669]TingyiChen[/MENTION] for this awesome build - best I've ever had! Thanks for the awesome support from eveyone else also :)

Just to be safe: If I want to upgrade from version 11/22 to 11/29 (for working fingerprints), I just have to install the new rom via TWRP? Without any wipe or installing Gapps again!?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
I'm also not sure on that....

Most of the time i just want to play it safe with a fresh wipe and install.

Takes some time to setup the phone again, but still i find it worth it :)
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] TingyiChen:
Just Flash, gapps will be keep
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] joha386:
Beautiful work [MENTION=7500669]TingyiChen[/MENTION] ! Thank you for sticking with it for now. My hopes are high that once the Redmi 5 will be released on Dec 7th, that we might see Xiaomi providing some sources for our Redmi 4X.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] chandan warad:
Lineage 14.1[20171130] nice work
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
Nice and good to know :)

Thanks for the quick new rom release :D

Have you found something about the call volume if i may ask? :o

Thanks for the all the hard work as always :D

$20,- have been donated your way!

*In phone info: VoLTE Provisioned ,is still grayed out.

Have just flashed 30/11 rom over the 29/11 rom (not wiped the phone first, don't know if that makes a difference?).
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] tokomotxo:
{Google Traductor} -->Thank you very much for this rom. I am using the lineage-14.1-20171121 version, it works without any problems. I can not see the imei but I receive and send calls perfectly.

I'm going to install the latest update, let's see how it behaves. :laugh:
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] TingyiChen:
Saturday will check it... Cause other time having school
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] TingyiChen:
yes
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rome.agregado:
Updates?

Is there gonna be a new release that has a fix for the Gyro, Accelerometer, Speaker issues and Video Record saving issues as well? I really wanna use this ROM. Because MIUI 8 eats up a lot of RAM.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] TingyiChen:
will release soon,maybe in 6hrs
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rome.agregado:
Thanks! That would be awesome. I hope that you could try everything before releasing it. Maybe you can ask any 4X user to check for Quality issues?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] harits.sugianto:
Support qualcomm qc 3.0?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rome.agregado:
It's been 6 hours now. Any updates? I hope the Sensors (Gyro, Accelerometer and Compass), Baseband, VoLTE and Equalizer FC issues would be fixed. :)

Badly need a Nougat ROM now as I need to combine the internal and external storage because I only got the Redmi 4x 2GB/16GB.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] pablog_86:
Fixes

1) Workaround for Video Recording issue

2) Magisk Init Script for Unknown Baseband issue

Tested by me. All credits for [MENTION=7190920]yuneharuka[/MENTION]
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rome.agregado:
How about for sensors issue? Gyro, Accelerometer, Etc.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] pablog_86:
I'm sorry dude. All my sensors are working fine.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rome.agregado:
Thanks! Just to confirm, I'd like to know if Video Recordings are being saved.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] domi.nos:
Hey,

1. Is there any problem caused by baseband unknown bug?

2. Could you try to make charging use higher current?

3. Could you try to make led colorful, at least in basic 6 colors?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] sonalsaha:
there is a fix for baseband, using magisk mod.

The led is hardware dude.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] domi.nos:
Nevermind baseband, I was just curious if there are any consequences of that.

Led is white by software only. On Miui there is a script that caused it to shine with colors. Just google redmi 4x color led.

Higher current if said to be limited by one parameter.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] sonalsaha:
I dont undersatnd what i am doing wrong. Last time when i flashed this rom the VOLTE was working. Now its not. I have tried everything.

HELP
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] kinetickansra:
Exactly..same issue..VoLTE icon just disappeared after I flashed SuperSU.

Just ****ing tried everything but of no use..
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] sonalsaha:
I flashed MIUI through twrp which removed twrp itself. Then flashed twrp and a volte working ROM. Now it's working.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] rome.agregado:
Can you elaborate all of the steps that you have done?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] edall:
Flash went fine, so far amazing rom. I just wanted to ask if in the future I'd like to flash xiaomi.EU dev (based on nougat) should I flash the firmware.zip again or not?Also should I wipe System or not before flash? Thank you for your work and your time, really appreciate it.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] sonalsaha:
Just flash any of the official MIUI ROM package through twrp. Reboot system. It will take a while to boot. If it take way too long. Boot into fastboot. That's what I did.

The flash twrp again.

Then flash a volte working ROM.
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] BarnOwl:
Did you get the Volte icon to show up or did you really get a working Volte with your method?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
Edit:

Volte working after flashing miui 9 beta and the latest lineage os 30/11. :cool:

Before:

After flashing the latest version my volte gone.before this I'm on aex with v025 firmware.

Even I flashed miui 9 with fastboot and still no luck.

Tried different roms. all working fine even mobile data but I'm not able to make or receive calls.volte is most important for me.

Pls fix this as asap
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] uan:
Update 3: Problem fixed with 20171130 build. Nice!
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] lostcontrol:
Same here. Just dirty flashed over 2017/10/29. Everything seems to work great so far but that VoLTE thing is also grayed out. Not sure if VoLTE is effectively working or not!?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] Mister Advance:
TingyiChen, has already confirmed to take a look at the problem.

Just have to play the waiting game :)

The ROM becomes more and more finished :)
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] danijerez:
I still do not work Volte, is it necessary to flash miui 9 beta? can you leave the link?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
I think its not necessary to flash miui 9 beta

Flash the lineage os 30/11 version and see bcz volte bug is fixed in latest version
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] danijerez:
I have flashed and it still does not work, what gapps did you put?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
Pico
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] cristianpark:
I actually pm [MENTION=7500669]TingyiChen[/MENTION] but never had a response (maybe he's very busy), I went to [MENTION=6810779]wzedlare[/MENTION] ROM Forum (he told me it was the first port of LOs for our device) and found more information about LOs tree.

Here is a copy of the PM I sent to [MENTION=7500669]TingyiChen[/MENTION] if you want to check the links (I haven't forked anything yet)
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] TingyiChen:
Check mokee github
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] cristianpark:
Thank you!! I'll check the repos of Mokee

I'm going to flash last build to see if the issue with the display power on is solved (haven't see any report in the past weeks).

Thanks for your hard work!!
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] danijerez:
I just flashed again with a pico, still not going =_="

*#*#4636#*#* slides on?
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
Here what I did

Flashed miui 9 global beta 7.9.7 with fastboot

And clean flashed lineage with pico gapps and it worked for me
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
What is your ims status? if it is registered volte will work

IMS is responsible for volte,vo wifi
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] danijerez:
where can I look at the ims status??
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] [uglyboy]:
I found something a bit buggy to my understanding and is that if you touch the fingerprint sensor with an unregistered fingerprint while phone is locked, the redmi will restart itself for no reason.

I don't know if this is working as designed in case someone tries to forcibly unlock the phone, but while I'm on the gym I unintentionally touch the sensor with my body and the phone does that several times.

The other thing is that I cannot boot the phone into recovery. While on the official MIUI ROM the way to do it was by pressing the volume UP button and release it in the mi logo screen, that would take me to a Chinese menu where the work 'recovery' could be read and touched to then press the blue button on the next screen and that would take me to the recovery of the phone.

Now while on lineage OS, if I do the same, the phone will never show me the Chinese menu and will stuck on the mi logo screen. Any insights?

I wanted to root the phone to do some tweaking
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] LonerDarke:
Hi! Someone know if the vibration during fingerprint unlock can be disabled? Thanks!
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] cristianpark:
Just tried that and at first it seems like isn't happening but after several tries with wrong fingers I had the device restarted and the wallpaper restored to factory. I wasn't able to reproduce the bug afterwards though, everytime I try now with all the fingers of a hand the vibration stops at some time and I get a message "Too many attemps, Try again later"

Which recovery did you flash to install LOs? you should be able to access recovery via advance restart menu or by button combination (Vol up+Vol down+power) before starting LOs. You shouldn't have stock recovery by now (the one with chinese menu)
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
*#*#4636#*#* >phone information> click 3 dot menu in top right corner > ims service status
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] danijerez:
I solved it by installing miui 9 beta, I'll leave it for a while. ty :o
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] adorableconjurer:
Told you
[Xiaomi Redmi 4X ROMs, Kernels, Recoveries, & Other] sdx615:
Hello, feedback bug, a lot of ROM have this problem - - - - set the ----sim card ----sim card 1 settings - - - - - -- crash