yashsingh1/xdaforums huggingface dataset:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] karabassssss:
is there any progress on official track ?

thanks
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, still waiting on [MENTION=7985055]Rk585[/MENTION] to merge the kernel

https://github.com/LeEcoDevs/android_kernel_leeco_msm8976/commits/lineage-16.0-unsquashedcommits

And the vendor blobs

https://github.com/LeEcoDevs/proprietary_vendor_leeco/commits/lineage-16.0

I am not an s2 maintainer for LineageOS so I can't merge that stuff :silly:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] spandey65:
Hey [MENTION=6235294]ThE_MarD[/MENTION] you seems to have lot of experience in LineagOS. Why don't you become the official maintainer since [MENTION=7985055]Rk585[/MENTION] is missing from long..:p
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo [MENTION=7908254]spandey65[/MENTION], hehe to become an official device maintainer? You must own the device. I do not own an s2 and tbh, it seems there's already a few good s2 maintainers so really the only thing I could contribute was to help clean up the device trees and add a few helpful commits and selinux enforcing. All of which I've already done. :good:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] spandey65:
Hey [MENTION=6235294]ThE_MarD[/MENTION] Thanks a lot for the update, Everything is in place but still we are waiting for the ROM.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
You're welcome [MENTION=7908254]spandey65[/MENTION]. Please only quote or mention in a post. Doing both a quote and mention will cause a notification for both a mention and quote of the same post.

I have only done this to you so you can see what I mean. :silly:

I'm not sure when [MENTION=7985055]Rk585[/MENTION] will push the kernel and do a pull request for the vendor blob merges, but hopefully it is sooner than later.

I'll be done vacation soon, so I can at least handle the pull request for the vendor blobs... But the kernel I don't have permissions to do.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ch@ts:
If you're using GAPPS, then you use Google's location provider backend, which pings cell phone towers and GPS, constantly tracks your position and reports it back to Google. The tower database is updated very often, and you're location will be more accurate if you don't have a GPS signal.

If you don't use GAPPS, then custom ROM's don't have a location provider. You need to install a location provider - UnifiedNLP, and choose a backend. You can either use Mozillas database, or choose from a couple of other ones. I'm using Radiocells, which lets me download information of all cellphone towers in my country, and uses that to determine my location if GPS isn't available. It doesn't report my location back to anyone, but is not very accurate.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] chimera451:
Thanks for the explanation!!
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] jjsan:
this helped me with GPS.

install and set your country. I got GPS fix in les than a minute

https://f-droid.org/en/packages/org.fastergps/

and I use

https://play.google.com/store/apps/details?id=com.eclipsim.gpsstatus2&hl=en

for getting agps data and test GPS
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Rk585:
Update :

Changelog :
* October security patch
* Fixed issues with music playback.
* Fixed theming related issues.
* Fixed lags while selecting different live display profiles
* Switched to Snap cam
* And more ...

Download : https://androidfilehost.com/?fid=1322778262904023642
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] azoksky:
Good job..
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
Any link where we can follow your commits? The link on the first page doesn't seem to contain all commits.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Rk585:
Device tree: https://github.com/rk779/android_device_leeco_s2

Vendor tree: https://github.com/rk779/proprietary_vendor_leeco
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Crow550:
Same on Lineage 15 when enabling H.265 in the custom Google Camera app.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] sclip:
[MENTION=7985055]Rk585[/MENTION], can you please clarify whether you have abandoned LOS15.1 development in favor of 16.0?

Also, can I dirty-flash LOS16.0 over 15.1?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] sclip:
Is that the answer to my first or second question? :o
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] DarknessKiller:
For both
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] nrupin_gmail:
[MENTION=7985055]Rk585[/MENTION]: Unofficial Lineage/Pixel/ Nitrogen

Select anyone ROM and make it official. You are doing gr8 work. But make any one pie perfect ;)
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Kubjusz:
Gcam works well on Pie here? Any known bugs in comparison to lineageos oreo? Now im happy user of 8.1 and everything works well, even though id love to try Pie, but im not sure if it's stable to everyday use (camera, calling, wifi speed, sms, google backup restore, good working quality). Any1 could answer? :D
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Jarvis Kas:
[MENTION=7985055]Rk585[/MENTION] pls add gesture navigation(apple) to LOS 16.0 its handy
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] DarknessKiller:
Im not los dev... And all pie has gesture navigation u have to find it
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Jarvis Kas:
Thank u for ur reply and I know u r the developer of syberian project and the wonderful kernel graphene and I know pie has gesture navigation but it takes some space in the screen as navigation bar ao I asked for apple gestures as in nitrogen OS
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Kubjusz:
[MENTION=6949194]Jarvis Kas[/MENTION] Do you use that rom? Could you answer my questions? :D
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Jarvis Kas:
I change rom over a period of cycle!! I used every rom on android P and O, and I am now in nitrogen OS P and obviously yes I have used that ROM.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Kubjusz:
Gcam works as well as on 8.1 here? Any known bugs in comparison to lineageos oreo? Now im happy user of 8.1 and everything works well, even though id love to try Pie, but im not sure if it's stable to everyday use (camera, calling, wifi speed, sms, google backup restore, good working quality).

So is it quite stable?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] tImI breakdown:
While we are waiting for the official one, I built LineageOS 17.0 with open gapps, but with not big nuances, so heyyo [MENTION=6235294]ThE_MarD[/MENTION] :o, tell me, please, where to look, which way to dig? Where are these items in the device tree?

1. The inscription in the curtain is highlighted in red.

2. In the settings, I set the battery icon in the form of a circle with percentages inside, but it does not change.

3. The model and device name are not determined (this was also in the current version of init_s2.cpp in github, but also in the redone version (which is in the screenshot, but not fetch github) as in your tree for max2).

https://github.com/tImIbreakdown/android_device_leeco_s2/tree/lineage-17.0/init

The rest everything seems to work (so far without selinux).
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo [MENTION=10121505]tImI breakdown[/MENTION], well done! :good:

To fix our init script? We will need this:

https://review.lineageos.org/c/LineageOS/android_device_leeco_msm8996-common/+/263904

Alongside the system core commit here:

https://review.lineageos.org/c/LineageOS/android_system_core/+/263905

They moved init very early on Q which breaks our libinit script as eMMC drivers aren't ready that early enough to read our devinfo partition, so we need a special way to have our libinit read later, which is this workaround. :good:

I would recommend checking nullby or alash98sky's or other s2 maintainer's repos to see what other fixes they have like all the haxxed fingerprint blob stuff to fix your goodix fingerprint reader in Android 10.

The battery circle indicator missing is a known bug for LOS 17.0. There's still a bunch of bring up items that need to be addressed for it before they'll consider going official.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, so I'm back from vacation and my son is having roubles adjusting to the timezone differences.. so I took an extra day off of work and since I can't sleep yet? I took care of the vendor blob pull request. :good:

Meow we just need a LineageOS team member to merge it

https://github.com/TheMuppets/proprietary_vendor_leeco/pull/50

and then [MENTION=7985055]Rk585[/MENTION] to push his kernel.

Update: codeworkx merged the vendor blobs. So both the device tree and vendor blobs are done. It really meow is just Rk585 pushing the kernel and then do a request for LineageOS 16.0 builds.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] johnsmith3554:
Hi, I'm a fan of this ROM but having an issue with camera crashing after encryption. Original camera app and third party camera apps work right before encryption, then after encryption, every camera app crashes. Does anyone else have experience with this issue?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo [MENTION=8126680]johnsmith3554[/MENTION], can you please specify which build you are trying encryption with?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] RexChandu:
Is it stable

Someone Could you please confirm LineageOS 16.0 is stable and I can install safe
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
Yes, the most stable ROM ever for me. Just make sure to install the latest version compiled by The_Mard. It's too bad Rk585 still doesn't get around to submitting the final commits so that we can have the official LineageOS 16.0.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BlueSea29:
Hello:

this one :

lineage-16.0-20191118-UNOFFICIAL-s2.zip

??
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] qra69:
How about echo during calling in this rom? are there big differences compared to 15.1?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, great news! codeworkx pushed the kernel to LOS GitHub because [MENTION=7985055]Rk585[/MENTION] is too lazy lol, so meow we just need approval by the LineageOS team for LOS 16.0 official builds. :good:

Just to check because I can't remember if I asked or not, but does encryption work ok? Does camera work with it encrypted as well?

What about the rest of the requirements for the LineageOS charter for device support?

https://github.com/LineageOS/charter/blob/master/device-support-requirements.md
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
I've never used encryption and I'm not sure how to test it exactly.

Download this one:

https://osdn.net/projects/lineageos...20191019-UNOFFICIAL-s2-selinux-enforcing.zip/
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] johnsmith3554:
I apologize. Clean flashed it again and the camera is working with encryption on now.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo [MENTION=8738749]kalehrl[/MENTION], to test it you just encrypt your s2 via settings > security > advanced > encryption > encrypt phone > wait for encryption process to finish > test camera and so on. It does sound like we are fine as [MENTION=8126680]johnsmith3554[/MENTION] just confirmed it works fine for encryption and camera too! :good:

I've asked [MENTION=7985055]Rk585[/MENTION] to make the LineageOS gerrit entries for s2 promotion to 16.0 since it's literally just a few taps on a touchscreen. No need to local sync those branches and create the changes like that.

Also, a side-project that would be a lot of work for both testers and myself... I've seen a lot of complaints of echo during loudspeaker calls on s2. I could try to help fix that, but it's a super pain in the butt for both testers and myself to first make the proper logcats on EUI ROM and then to do the same on LineageOS 16.0 to see what is different between LeEco's audio HAL haxxs and AOSP audio HAL so we can once and for all fix noise cancelling (echo) on custom ROMs for s2.

If anyone's interested? This is what I would need as a guide for you guys to follow.

https://gist.github.com/ThEMarD/cd31bb69731ef004891b128832ed92c3

I would need separate logcat files and clears every time you logcat a new audio source for the call with the name on the logcat to reference what was used... IE,

Voice call handset.log

Voice call loudspeaker.log

Voice call wired earphones.log

Voice call wired headset.log

and in between the logs to clear logcat would be...

adb logcat -c

We would also need to do the get_snd_dev_names thing from this guide which I could compile if someone's willing to run the command and send me the output of it.

https://gist.github.com/ThEMarD/0d6041fd38d6147e99130307e094f807

and then together? We would need to bash our faces against keyboards and your s2's to hopefully get something with a positive result :silly:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mamamia888:
Based on what I used and tested, no echo issue on 16. It could be related to the firmware you use .... I was from the original x526 s19 to flash 16.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] qra69:
how to test it?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
None of the people I talked to complained about the echo.

I know this was an issue with 15.1 but I think 16.0 corrected it but I'm not 100% sure.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] mamamia888:
I used MobileVOIP app to run Diag. downloaded from Google store ...
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, experimental build lineage-16.0-20191222-UNOFFICIAL-s2-audio-tweaks is up. Turns out there's some differences in how audio is handled on custom ROMs compared to how LeEco updated it on EUI ROM 30s for s2, so this build brings a bunch of those changes to see if it helps since we are already using acdb files from EUI ROM 30s. The build should be up within 30 minutes of this post. The acdb files look for speaker entries where-as currently on custom ROMs s2 is using smartpa backend paths which could be causing issues... that, or maybe it was how older EUI ROM was for s2? Or a necessary haxxs by codeworkx? I am not quite sure as it isn't really documented on s2 trees so I guess we shall see if it helps fix noise-cancelling for all or if it breaks loudspeaker modes lol... :silly:

[MENTION=1413449]qra69[/MENTION] if you're interested in LineageOS 16.0 and echo during calls as you said you experience it even on 15.1 to try out this build to see if it helps.

https://osdn.net/projects/lineageos-for-s2/releases/72068
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] FRibeiro1400:
Finally someone is trying to fix the echo problem in calls. Thank you so much.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] qra69:
why LOS 16.0 is updated so rarely compared to 15.1?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] tImI breakdown:
Hooray comrades!:o

LineageOS 16 will be official soon!:victory:

What would we do without you [MENTION=6235294]ThE_MarD[/MENTION] :good:

https://review.lineageos.org/c/LineageOS/hudson/+/265816
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] qra69:
great news :laugh:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, hehe yep! Ya beat me to it. She is indeed ready for official which is good news. I nagged [MENTION=7985055]Rk585[/MENTION] and he made the Hudson and wiki commits. Meow it's just a matter of letting the LineageOS team to give their review on it. :good:

Also, any feedback on that audio tweaks build? Is loudspeaker on voice calls better? Or worse?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Richard Langlois:
Hi The_MarD

Thanks a lot for your contribution to this ROM. I cannot believe we will have an official update very soon!!!!

Regarding your last post, I tried your latest ROM but it keeps looping on lineageos start anim. Is there any special requirement? A 2 months old rom from the same thread works on the same device but I haven't played much with it. Before that I was on the official 15.1 for about a year

I'm willing to test speaker phone but dont know if it is worth given I dont use the native dialer. I use VoIP (zoiper) on that phone.

Thanks again

Richard
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo! Amazing news! LineageOS team has merged the hudson and wiki commits! LineageOS 16.0 official for s2 should start tonight! We did it boys! :victory:

New loueadspeaker echo-reference audio tweaks test build is going up! It should be uploaded within 30 minutes of this post. lineage-16.0-20191224-UNOFFICIAL-s2-audio-tweaks-test2 this time I've changed the way echo-reference is handled to better mirror the changes I've made on the LeEco Le Max 2 (x2). The VOC_EXT_EC MUX lines were set to initialize before the voice mixers which can cause issues too.

https://osdn.net/projects/lineageos-for-s2/releases/72077

[MENTION=10208515]reysers[/MENTION], hmm, so for you, the loudspeaker ceased to work? Dang, ok the smartpa might be a haxxs by codeworkx then lol, so there might be more required to fix this issue... please try the new test build as I've noticed that echo-reference isn't set up properly for some audio scenarios, which is why maybe for some there is echo and for others there isn't any.

[MENTION=1242988]Richard Langlois[/MENTION], there shouldn't be any special requirement no as it's just the official repos with the audio tweaks sprinkled on top. Please try the above build since it for sure should work unless you have mods or something installed that can break it.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BlueSea29:
<

Same Here :cowboy:

I m going to test news optimized build tomorrow !
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, ok thanks for the feedback. I took down that bad first audio tweaks build. :good:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] reysers:
The speaker works, I test further!
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] tImI breakdown:
Heyyo [MENTION=6235294]ThE_MarD[/MENTION] This is the wrong echo correction solution?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo [MENTION=10121505]tImI breakdown[/MENTION], that is not the proper solution sorry. zl1 and x2 have fluence enabled and on speaker too and we have already fixed our echo issues properly.

The issue for s2 is definitely the audio platform info and the mixer paths.

As noted, stock EUI ROM 30s for s2 has fluence enabled. Here's an upload I made of that stock build.prop

https://gist.github.com/ThEMarD/eadee9f8482e407315fbca649847ba04

Here's the one I'm trying for audio tweaks test 2. I noticed the echo-reference isn't configured properly as it needs to be set after the first mixer value and also it was missing from voicemmode2 and compress-voip-call which could explain why some users say they don't have the issue yet others say they do.

https://github.com/LeEcoDevs/android_device_leeco_s2/commit/0e111796fe4369b13aef5e41613a61bc6cae85ba
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] BlueSea29:
thanks for your work :highfive:

The sound quality is good for Phone calling on the test 2, maybe better than the stock LineageOS 16 (or this is a better quality of reception during my test ? ). No echoing and the speaker seam to work good in this test rom. :good:
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
I just tested the latest ROM and audio seems fine.

I didn't test the speakerphone just normal voice call over Viber.

Microphone also works fine and speaker sounds notifications so that also works.

Can't tell anything about possible increase in sound quality yet.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] tImI breakdown:
Build failed due to "No space left on device" :(

https://buildkite.com/lineageos/android/builds/11152#37d7e31e-e3f4-47d8-b0b5-e4700c964c03
[MENTION=6235294]ThE_MarD[/MENTION] I applied your changes in github about echo to lineage17 yesterday, but it didn’t work, a little echo still remained
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, lol yeah that's unfortunate that s2's first official LineageOS 16.0 build failed because the build server's ran out of space... the good news though? Our trees are definitely fine as the build itself passed :good:

For echo-reference tests? Tbh I'm more focused on 16.0 as other s2 maintainers have mentioned in Android 10 that echo-reference doesn't seem to be working at all... so something must have changed on the audio HAL there and would need separate investigation.

The best way to go about fixing echo-reference for s2? logcat EUI ROM 30s and LineageOS 16.0 and also LineageOS 17.0 for these things:

regular voice speaker calls

VoIP speaker calls (facebook messenger as an example)

VoLTE speaker calls (in case it varies from regular voice speaker calls)

That would be while following this guide:

https://gist.github.com/ThEMarD/cd31bb69731ef004891b128832ed92c3

Then we can try and see what ACDB IDs and also which mixer paths EUI ROM 30s is using and then compare to what both LineageOS 16.0 and 17.0 are using to come up with hopefully a good solution to fix both just in case there's more mixer paths shenanigans we need to investigate.

There's also a chance that s2's echo-reference here is incorrect, but I'll need to see via logcat what path it's trying to use

<path name="echo-reference">
<ctl name="AUDIO_REF_EC_UL1 MUX" value="I2S_RX" />
</path>

because just below it is this which I'm unsure if it's even being used...

<path name="echo-reference-voip">
<ctl name="AUDIO_REF_EC_UL5 MUX" value="QUIN_MI2S_TX" />
</path>

I'm guessing that the above echo reference should also be set to QUIN_MI2S_TX since that should be the correct path that LeEco uses on their EUI ROM for s2 audio HAL haxxs... but I'd want to confirm that it is actually using the "echo-reference" path or if EUI ROM is using something else...

Another example of what I mean here with what Asus did with the Zenfone 3

https://github.com/LineageOS/android_device_asus_zenfone3/blob/lineage-17.0/configs/audio/mixer_paths_mtp.xml#L1558
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] ThE_MarD:
Heyyo, so this time for real the first LineageOS 16.0 official build for s2 is up! w00t! Thanks again to all the testers that helped test the builds! Without you guys this would have never been possible! :good:

https://download.lineageos.org/s2
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] kalehrl:
Hi Marc

I think it's safe to merge the last 2 commits regarding audio fixes because I've been using the last ROM for a couple of days and all is fine. Speaker audio appears to be of a slightly higher quality than before.
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] qra69:
upgrade 15.1->16.0 DoNe :) thanx
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] sparrow1:
Could I dirty flash 16.0 over 15.1 or do I need to factory reset first?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] Gytrrfy:
I found and downloaded the old lineageos migration.sh script. Is it possible to flash that script and then upgrade (dirty flash) from unofficial 16.0 to this new official 16.0?
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] qra69:
yes, first LOS then gaaps. It works very well
[LeEco Le 2 ROMs, Kernels, Recoveries, & Other Deve] MustangBR:
Hi [MENTION=6235294]ThE_MarD[/MENTION]

As you are a great experienced developer ... Could you tell me if it is possible to add lte bands to a smartphone using the steps in the topics below?

https://xdaforums.com/oneplus-3/how-to/guide-unlock-additional-lte-bands-t3519563

https://xdaforums.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059/amp/

https://xdaforums.com/android/apps-games/app-qualcomm-nv-calculator-adding-2g-3g-t2915649

I plan to add the LTE band 28 on Leeco Le2 x526.

I know that the qualcom modem used in Leeco, also equipped on other devices, allows the LTE band 28.

Thanks in advanced.