yashsingh1/xdaforums huggingface dataset:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mk9866:
Try Updating ur twrp flash latest twrp img and thank Me later...

:p
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mervinb:
[MENTION=7826530]mk9866[/MENTION] - updated to twrp 3.2.1; thanks! Install worked. Never thought it might be because of the recovery version.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mk9866:
My TWRP is latest 3.2.1-0 version still VoLTE is not working... In all ROMs ...

I have installed pixel 9.0 without wiping... My previous ROM is MiUi 10.... Now voLTE not working in any ROM... Before it was working fine in MiUi 10.. Now it's not even Woking in MiUi 10... Help needed...:crying::(
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] edan lkr:
Flash official eui 19s ROM then it will work. Or try flashing 19s bootloader. N don't ask for the links.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mk9866:
This Worked For me... thx btw ;) <3

Boot into recovery.

In twrp goto advanced >> terminal

Type the following

dd if=/dev/zero of=/dev/block/mmcblk0p14

Press enter

Type

dd if=/dev/zero of=/dev/block/mmcblk0p13

Press enter

Reboot phone.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] pc9316:
Pubg mobile working or not?

Does this ROM works fine with Pubg Mobile?

I mean does Bluetooth Voice chat or "Bluetooth calling" is working fine with Bluetooth earphones or not?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Atif Raini:
Bluetooth calling have issues it will not connect to Bluetooth and while playing PUBG in Bluetooth you can not you microphone it will stop sound completely
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] prateekkej:
The issue is with default ims AP

Just delete that AP, create a new AP with name and APN as "ims" all smalls .

Mark that AP as default.

Open Dialer, select Default SIM as Jio.

now reboot.

It will start working itself. Now, you can select jionet as AP.and continue using VoLTE without net.

I dont know the exact reason, why it works like this but since it works, you can go for it.:fingers-crossed:

Here is the Baseband version for 19s Bootloader. I was also not able to access VoLTE on this rom but after doing the steps above, it got working.

Baseband version

MPSS.TA.2.0.c18-00004-8976 GEN PACK 1.65238.1.66782.1
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Akash98Sky:
? New update for Aosp Extended

[B][U]Change logs :[/U][/B]
> all Oreo themes are back on pie
> fixed dark ui
> audio quality improvement (new audio hal)
> update widevine service for pie (check)
> a few more

Link --> DOWNLOAD
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Atif Raini:
Does Bluetooth calling fixed ?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mk9866:
Thanks... anyway apn changing didn't worked for me...

I solved my issue.. I have already mentioned above the process, I solved volte problem in my mobile...

This Rom is Just Osm...?? Thx Dev...?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Akash98Sky:
I use BT headphones...

It works fine for me:good:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] CardinalChaos:
Anyone have 19s bootloader for 522 US?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Atif Raini:
It isn't working for me

After doing clean flash buttons backlight works but no BT calling same for PUBG
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ptg251294:
Which version of MIUI 10 you were using? Also how was battery life in MIUI as compared to this ROM? Did you switch only because you wanted to try Pie based ROM or was there any bug/issue in MIUI.

I am thinking of changing my current ROM which is AEX 5.8 and so I want a suggestion about which way to go MIUI 10 or AEX 6.0.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Atif Raini:
Latest build of MIUI 10 shows this phone is locked in russian lang i still have that rom in my nandroid but did not find any solution for that as of now
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mk9866:
MIUI 10 Global

I Used Saghar Makhar's version of global miui 10... you can find it here https://www.youtube.com/watch?v=85O1jBRjiMs ...

there are no bugs in this rom.... its multilingual and it also supports voLTE... make sure you use latest twrp... thx <3 :p
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Rolan92:
Hyy..how to lock apps in recent app? get in messge WA app must be open
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] otaired2:
I flashed mine but there is a problem with ringtone and notification. Not playing any sound. Media is okay.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Akash98Sky:
New update available

https://www.androidfilehost.com/?fid=1322778262904022784

Check 3rd post of this thread for changelogs....
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Rimasi89:
Does this rom or MIUI 10 for x522 support GCAM withou any issue?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
how's the battery life of this ROM am yet to test it and which is more better DOTos or AOSP extended ROM or any other with more stability and by the way am downloading this ROM already still need your inputs
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Can't play music on this ROM that's one of the bug I noticed that's I can't hear audio that's on speaker or earphone but it's playing ....

Ooh got it figured out I had to enable combine mono audio on accessibility settings now audio files and videos plays and I can hear the output
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] new68u:
Thank you for this great rom!

one minor UI bug: when 24-hrs time display is disabled, there 's no "AM/PM" shown next to the upper left clock.

wish list: encryption, sim1/sim2 disable option
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] DarknessKiller:
The time isnt a bug but an feature
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] nikhil7760:
How to update this rom? Pls tell me the steps to do that..
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Yea noticed the time too but ain't a bug he said you heard the man include vibrate on call answer cox I don't see it there gaming mode included will be awesome and compass app and ir remote controller too thanks for the ROM am on it and haven't experienced no issue and the battery life is superb plus Camera is damn good
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Sdcard not mounted

Phone: LeTv Le 2

ROM: AOSP Extended https://xdaforums.com/le-2/development/rom-aospextended-rom-v6-0-t3841473

Guide Followed While Flashing TWRP and Magisk: https://www.guidingtech.com/59895/le-2-rooting-guide-twrp-installation/

Problem: Everything was fine until I tried Downloading an apk using chrome and it couldn't find storage/emulated/0 and none of the apps were able to access storage..

So I fired up ADB and $ adb shell gave me a list of folders with no storage folder.

~ # ls boot init.recovery.service.rc selinux_version cache init.recovery.usb.rc sepolicy charger license service_contexts data oem sideload default.prop persist supersu dev proc sys dsp property_contexts system etc recovery tmp file_contexts res twres firmware root ueventd.rc init sbin usbstorage init.rc sdcard init.recovery.hlthchrg.rc seapp_contexts

I realised I had no /storage/emulated/0 folder.

I tried reflashing the rom, it didn't make a difference. I tried flashing a different ROM, no result.

I tried to open the folder sdcard, it says 'sdcard' is not mounted.

I tried mounting it using adb but it didn't work. I tried symlinking storage/emulated/0 to sdcard, no results.

How to I get my sdcard back/mount it?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
Backup your data(documents, pics, songs etc.)(if any) by transfering from Twrp to Pc (Mount option).

Then go to wipe and format data....(all data will go and storage will mount)

....Please let me know if it works..... !???
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Unable to mount '/data/'

I tried this.

TWRP->WIPE->Format Data

I got a bunch of errors:

Could not mount /data and unable to find crypto footer.

Failed to mount /data (Invalid Arguement)

....

and a few more lines where /data was not found or unable to mount.

So I saw this post on androidcentral..

I did :

Step 2: Go to Wipe box

Step 3: Select Advanced Wipe

Step 4: Check "DATA" and tap on "Repair File System".

Then I did the format as you said and it was SUCCESSFUL.

I restarted the phone but the internal sdcard was still not mounted and the apps can't access it.

What do I do now?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] otaired2:
Did you flash the latest version?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
Try any other pie rom.....Maybe it's the rom problem. (Use unofficial twrp 3.2.3-0 by rk585)
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mjidou1993:
i have a probelm music does not work i have tried all the media players but no music
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Yea I had that problem too go to accessibility and enable Mono Audio
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Any hope for Audio FX on this ROM

I noticed back camera can't scan QR codes from Xender apk don't know of others
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Latest version of ..?

I flashed the latest version of GApps, AOSP Extended and Magisk.

---------- Post added at 06:05 AM ---------- Previous post was at 06:03 AM ----------

I tried this: https://xdaforums.com/le-2/development/rom-lineageos-16-0-t3849493

Same issue. No internal sdcard.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Trying out

TWRP: https://twrp.me/leeco/leecole2.html

ROM: https://xdaforums.com/le-2/development/rom-pixel-experience-t3840866/page24#post77880674 Pixel Experience

No results.

---------- Post added at 07:18 AM ---------- Previous post was at 07:10 AM ----------

What TWRP are we all using for this ROM?

I'm using https://twrp.me/leeco/leecole2.html 3.2.2

Am I using the wrong one? Can someone post a link to the right TWRP?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] otaired2:
Have you tried flashing the kernel from

https://xdaforums.com/le-2/development/project-illusionkernel-v1-0-t3677897
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Doing that..

PS. What'd flashing a new kernel do? Can u give me some context on it?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] otaired2:
Most custom kernel has new set of instruction not available in stock kernel. For example, most people flash a custom kernel to get new CPU Governor which can help improve/reduce the clock speed and thus more performance/saving battery.

During the 1st released, there is issue regarding the storage and flashing Graphene kernel fixed it. But the issue has already been fixed on the newer released. So maybe you could give it a try.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Here's what I did:

1. adb reboot bootloader

2. adb reboot bootloader

fastboot oem unlock

fastboot oem unlock-go

fastboot flash recovery twrp-3.2.1-0-s2.img

fastboot format userdata

3. Flashed :

https://xdaforums.com/le-2/development/project-illusionkernel-v1-0-t3677897

4. Flashed the ROM.

5. Fasjed Gapps

6. Flashed MAgisk.

Booted phone. Apps still can't access the internal memory.

On using adb shell or root explorer there's an 'sdcard' but clicking it says that I'll have to mount it.

---------- Post added at 08:45 AM ---------- Previous post was at 08:34 AM ----------

Can I mount the sdcard using adb somehow manually?

---------- Post added at 08:47 AM ---------- Previous post was at 08:45 AM ----------

Also, how am I able to install apps, etc when sdcard is not mounted?

PS. ITWRP can access the sdcard and adb push works fine.

---------- Post added at 08:52 AM ---------- Previous post was at 08:47 AM ----------

I guess I'll go back to the stock recovery and stock rom..cuz.. I need my sdcard otherwise I won't be able to use any app.

Can someone post the links here?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
I think you need to reboot before flashing Magisk.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
You there?

---------- Post added at 10:11 AM ---------- Previous post was at 09:25 AM ----------

Anyone who can help me with the internal sdcard issue?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] otaired2:
So you did run Advanced wipe and Repair ?

Then did you reboot TWRP? After reboot TWRP install the ROM. Install Gapps. Reboot. Then finished reboot, go back to recovery and flash Magisk. Then you should be done. If else fail you need to flash back original Firmware or create repartition
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
I tried all of the above options. Repartition it is..

How do I create a repartition?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
Flash the Graphene kernel after flashing rom, gapps and magisk and reboot.....

If this not works, FLASH THE OFFICIAL EUI FIRMWARE WITH QFIL TOOL. Do a factory reset with the stock recovery to gain full storage. your internal must be working then flash twrp and do format data and flash roms.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Tried flashing Graphene Kernel after flashing rom, gapps and magisk. Didn't work.

It worked. OMG.

Thanks bro. And thanks to all the others too. #lifesaver
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
volte not working.

Hey guys!

So all was well after flashing the Graphene Kernel until just tried to make a call and realised that the VOLTE support of the phone is gone.

1. Is it because of the graphene kernel flash?

2. What if I reflash the AOSP Extended ROM and don't flash the Graphene Kernel.. will I get VOLTE + Internal Memory back?

Thanks in advance.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] otaired2:
Just flash the kernel. Get the boot.img from the AOSP Ex and flash img through TWRP
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Just flash the kernel. -> You talking about Graphene Kernel?

Get the boot.img from the AOSP Ex and flash img through TWRP:-> Where can I find the boot.img?

---------- Post added at 04:40 AM ---------- Previous post was at 03:51 AM ----------

So, I've extracted the boot.img from the AOSP Extended ROM.

I flashed it, I didn't get VOLTE back, plus I lost SDCARD again.

Back to Graphene Kernel for now.

---------- Post added at 05:25 AM ---------- Previous post was at 04:40 AM ----------

I tried this too:

4. Go and search this: (Note: Default values are all-->0

change all to--> 1

#ifdef VENDOR_EDIT

persist.dbg.ims_volte_enable=1

persist.dbg.volte_avail_ovr=1

persist.dbg.vt_avail_ovr=1

persist.data.iwlan.enable=true

persist.dbg.wfc_avail_ovr=1

#endif

5. Save it and reboot

Didn't work.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] new68u:
VoLTE : check post #11 & #15 may help ;)
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
So stupid of me. I flashed the September 12 version and suffered so much. I should have flashed the 10-8 version. I should have seen the #2 post. Damn it.

---------- Post added at 09:06 AM ---------- Previous post was at 08:54 AM ----------

Flashing the 19s bootloader didn't help.

I'll just install the lastest ROM.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] otaired2:
lol. I knew there is something wrong when you said flashed the latest version but end up with storage error. It only happens in the first build. Fixed on the 2nd build. I've been using this ROM quite a while now and it really good.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
I flashed the latest version now. Dated: 11 October, no storage issues.

VOLTE still not working. Ever since I flashed the Graphene Kernel, VOLTE is goneee!!

---------- Post added at 10:14 AM ---------- Previous post was at 10:05 AM ----------

Installing the 19s bootloader doesnt help bring VOLTE back on AOSP AospExtended-v6.0-s2-20181011-1623-ALPHA.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] troytheboy:
If you are on the latest rom, updated gapps and magisk, and 19s bootloader there shouldn't be an issue with volte.

But volte some times disappears/stops working.

Puting the phone in airplane mode and then turning airplane mode of always works out for me.

Try it, maybe it is as simple as that.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] KimLe:
I used to have EUI 5.8.021S which ship with the phone LETV X522. I know this rom have many issues. But volte and wifi calling is rock solid on T-Mobile USA. it is not as simple as you said and It is clearly AospExtended rom still has a lot to improve over time to be used as daily rom.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
On latest build of AOSP extended 6.0 I can't enable VoLTE plus SIM 2 can't enable 4G LTE will 19s bootloader solve this SIM reset after reboot always occurs
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] newbk:
I'm on tmobile too and went through a bunch of bootloaders and modems. I couldn't make calls, couldn't receive calls. It was brutal. So now I think I'm on 19s bootloader with the 21s modem. I can at least make and receive calls but have to turn off enhanced 4g in settings for it to work.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
I need 21 modem file
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] troytheboy:
Ok.

19s bootloader and modem works great in India, with carriers like Jio.

'guess it causes problems with T-mobile in US.

Try the 21s modem, as someone suggested.

In India, this Rom is a stable daily driver, sans the camera.

But as I dont use the camera as much, i am using it as a daily driver. Infact i am using it to write this post.

Maybe 21s modem will help you out.

Good luck with it.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Internet STOPPED WORKING

Woke up this morning to find the phone turned off.

Turned the phone on only to find it has some issues:

1. The internet is not toggling on

2. Quick access dropdown can't be pulled down on swipe.

3. Notifications are not showing too.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Reflash ROM dirty flashing will do
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
Are u sure? I hope a dirty flash won't brick the phone?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Nope it won't it simply restore's the phone with your settings intact
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] shivangfreshworks:
It worked.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] rockingboy:
How to solve jio sim fluctuation ?? network is getting down frequently , flashed 19s bootloader still facing the same issue.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Why isn't the ROM dual 4G
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
The processor SD 652 don't support dual voLTE.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
But on the memo i got on this phone shows it supports dual 4G lte and pixel experience supports it too latest build
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
that means 4g can work on both sims, but only one sim can use 4g volte(either sim1 or sim2) at a time other while other will force 2g......
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Yea but ain't so o can only enable 4g for SIM 1 not SIM 2 of I switch my data to SIM 2 am only limited to 3G
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
It is working in perhaps ArrowOS, XenonHD or Msm extended
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Just got 4G on my MTN sim2 but can't get 4g on Airtel sim2 help
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
Did you get your Volte back. I am asking as I lost my volte on xenonHD. If your volte is working please tell me what you exactly did?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Can't seem to turn off Auto syn when I do it comes right back on after few minutes
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BOBxibyt:
Update plx
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Akash98Sky:
Aosp Extended 6.0 (Pie) OFFICIAL release

AospExtended-v6.0-s2-20181029-1503-OFFICIAL

BUILD & CHANGELOG => link
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] rt5mz7:
New Build

First thanks for the new build...I'm having encryption problems with the ROM. How can I fix that? Tkx.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mdio:
It's Official!! Thank you and congratulations!!

What could happen if I dirty flash it over v5.8??
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Akash98Sky:
No don't..

Coz 5.8 is Oreo and 6.0 is pie...

It would mess up everything..
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Akash98Sky:
Yup, Encryption is not fixed yet...
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] troytheboy:
Cant find the files. Getting error 404
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] omnied:
callers voice volume too high, neighbours in 5m range can hear what caller tells to me. how can i fix this? volte is off, carrier is 3g.

ringtone/alarm uses both speakers?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] gauravnegi:
nice work keep it up :good::good::fingers-crossed::fingers-crossed:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] realista87:
is encryption activable?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] troytheboy:
Its back
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Piy23:
Sound issue

I too face the same problem specially when other person on the phone is also using jio.

Other than that can anyone of you have the speaker problem means no sound output when I played song, but everything is fine ringtone, alarm, notification sound, YouTube everything but can't play song...

Anyone knows why??

Using 11.10.2018 pie rom..:confused::confused:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] new68u:
Try to install VLC as default mediaplayer.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] davidini:
I have problem with this rom (and crdroid 8.1) - "Msg comes:- camera keep stopping, open again."

Is there any solution for this? I have been flashing 4 times and still the same bug.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ankcash:
Error in installing

Right now I have AospExtended ROM v-5.8 official android oreo 8.1.0. I tried to upgrade to this rom but while installing I am getting this error:

E3004: This package is for device: s2,le_s2,le_s2_ww; this device is .

Updater process ended with ERROR: 7

Error installing zip file 'AospExtended-v6.0-s2-20181029-1503-OFFICIAL.zip'
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] bobdubrovsky:
Use this TWRP
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] wollj09:
Go from 100%to80% off night
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mdio:
I guess all Oreo and Pie roms have that problem... too much battery drain in standby and no dev can fix it. :(
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
What bootloader do you have? 19s or 20s?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] wollj09:
19
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MpS005:
it may be some unknown problem or the battery is destroyed a bit... for me 3 months ago (over 21s stock) with aex5.8 or any other oreo roms the drain was 29%, but now (over eui 6 stock) i got 11% drain and with eui19s bootloader drain becomes less. So try flashing 19s bootloader and some custom kernels.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mdio:
That's why I'm still on 5.8, I managed to get around 10% drain over night, with GrapheneKernel and Greenify, even like is too much, other phones in the house with simillar specs drain 2%.

But i really don't know what bootloader I have... how can I know that?