yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] rfburen:
Where can I download the right superstock kernel?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Kyo-Ito:
Hi [MENTION=6244884]rfburen[/MENTION]

SuperStock-Kernel
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] LaLaMakka:
Hey guys, I just updated my Superstock kernel to the latest version (2.6.1), but now I'm finding that the text within the toast notification is off-centred. It's a little annoying, and does anyone have any ideas what is causing it?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Flying Fox:
This doesn't´t solve this issue. It´s really annoying. One solution is to rename these concerned folders. But whatever you do, it makes updates or changes more time-consuming.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] rfburen:
Hi, i installed the superstock kernel and after two reboots i get notification in red in left upper corner of screen "custom binary blocked FRP lock"

how come ?? and what to do ??

i read on google that i have to install firmware with odin, but what happens to my ambasadii rom if i install the standard firmware?

and which one i have to choose from here (http://live.samsung-updates.com/index.php?device=SM-G930F) i always had BTU but its not there and PHN (because i am from NL) is also not ???
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Kyo-Ito:
Hi

This is last PHN Firmware

Once it's ok, enable OEM and never uncheck.

Flash last TWRP, Ambasadii + Add-ons.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Frodziak99:
Ambassadii, już jest wersja android 7.0 od Playa, czekam, aż dodasz csc do twojego romu (głównie na wifi calling).

Robisz dobrą robotę :)
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] rfburen:
I tried now the TLN (Tmobile NL) So far no problems yet :)

But how can i install the Superstock Kernel?? I don't want to lose another day with installling phone again :)
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lupin57:
Hi ;)

When u have to flash SuperStock kernel u need to flash SuperSU or Magisk or something else after ... to avoid your status !

See the instructions •► HERE before this operation :D
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] rfburen:
So after SuperStock Kernel flash the Ambasadii Rom again??
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lupin57:
Why do u want reflash the ROM ? Just SuperSU or Magisk •► LOOK :victory:
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] rfburen:
Because SUperSu is in the ROM and i don't know which version of SUperSu is in the ROM so i don't know which one to download (Ambasadii not mentioning which version SuperSu is in the 16.0 ROM)
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lupin57:
••► The last ;)

---------- Post added at 11:01 AM ---------- Previous post was at 10:54 AM ----------

Hey bro ;)

U have to write in english on XDA (see the rules) ... otherwise no after sales :laugh:
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] rfburen:
Thanks Lupin57, it worked. Although I had to wipe cache and dalvik twice. First time avast antivirus and Bluetooth sharing gave a lot of errors. But now it works !

Verstuurd vanaf mijn SM-G930F met Tapatalk
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lupin57:
Happy for u :good:

Dont forget for next times :D
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] mcjordan92:
?how to disable this:

Triple click volume down -> pauses music.

is there anything related to this rom that causes that?

I'm not sure what causes this but its annoying and I'm trying to disable it.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Lexuzz89:
Same question here ;)
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lauticol:
Go to ROM Control, then to "Other Mods" and select "Long Press Skip tracks". In that menu you have to disable "Kill app checkbox" and done!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] skorpion1977:
Hello,

I use this ROM and I like it very much. But I have a Problem. If I'm connected to a WLAN and then leave this WLAN I don't have Data connection to GSM. It seems everything ok, but no Mails, WhatsApp, ... receives me. I have to switch to Flightmode and back and then it works.

I have Baseband DQD7, CSC DBT DQE7, PDA DQE7 . Is there something wrong or how can I solve this?

Kind regards

skorpion1977
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lupin57:
Hi skorpion ;)

Did u try to reflash it or clean Dalvik & cache ?

If u made a dirty flash ... try a "clean" :D
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] dangerhouse:
no data in gsm after wifi-off is the same behavior like in stock 6.0.1 , maybe an Samsung issue
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ringetje:
Wat is the difference between dirty flash and clean flash?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] iOrpheus06:
Dirty flash doesnt wipe any data, just cache and dalvik (or system?:confused:. Clean flash wipes everything. But clean flash is preferred because of fewer bugs (because wiping everything removes all previous set up and files).
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] -ss-:
Deleted
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ambasadii:
ROM v17.0 are released!

Changelog ROM:

- update base to XXU1DQF6 official android 7.0 (security patch level 1 june 2017)

- updated stock kernel/modem/bootloader XXU1DQF6 for S7 Flat and S7 Edge

- added safetynet fix for magisksu

- added options to choose "kernel stock" or "tgp kernel lite v 4.74"

- added CSC "PHN" Netherlands

- added CSC "PRT" Poland Play

Addons v17.0 is released!

changelog Addons:

- update mods to new base

- update S8 apps to latest version (G955FXXU1AQF7)

- added to RC high volume warrning (Enable/Disable)

Please read this before flashing:

1) Arya Mod and Arise Mod works perfect on permissive kernel so I recommended use super-stock kernel. On stock kernel beats audio will not work!

2) If you want use Viper4a on stock kernel and magisk go to "magisk manager" and install ViperFX module then reboot!

3) If you use magisk-root go to magisk app and download section then install viper4fx module and reboot phone!

4) If you use supersu-root sound mods should work out of the box if not flash in TWRP SuperStock Kernel then again supersu and reboot phone!

5) Remember to hit thanks button on XDA thread and consider a small donation if you like my work THANK YOU!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lowis101_2014:
Hi people, is SecureFolder working in this last update?...thanks for the great work [MENTION=4074799]ambasadii[/MENTION]
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] jnrfalcon:
Is it possible to add Sam Pay?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lowis101_2014:
I dont know if this rom support it, but you can dowload ir from Galaxy app in your phone
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] gil_feli:
This Rom is Rock. Best ever.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] :
Latest version running well on my W8 variant - thank you. Noticed in "about device" it still shows May Security patch - was that just a typo ?

---------- Post added at 04:13 PM ---------- Previous post was at 03:48 PM ----------

Has anyone noticed V17 running hotter than V16 ? Full wipe / clean install - all apps installed from playstore not from back-up. V16 ran around 27 degrees C at idle and V17 is running at 37 degrees C under same conditions ? Will try another clean install to see if perhaps something did not install correctly
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Drahy:
Same here. Security patch level is from March not June. Phone much hotter than before.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] fagentu.xda:
I can confirm that the security patch level says May; on the other hand, I can't really say that the phone is running much hotter than before (I'm using the SuperStock 2.6.1 kernel), especially given the heat wave we're experiencing around here - see attached graph. Installed the new ROM yesterday.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] smartke12:
is it okay to make a dirty flash from v16 to v17 or rather not recommended?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Radzian:
It's not recommended, but I dirty flashed from v14 to v17 and so far so good :p
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] :
I did a complete re-flash of V17. Full wipe, add-ons, Superstock kernel, CSC, Magisk, etc. Let the phone set-up then added my apps. No heat issues second time around - all is good.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ManXXXX:
lucky patcher doesn't work. It freezes the phone
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] iOrpheus06:
Lucky patcher for what? e_e anyway why not try a changing kernel? Choose a permissive kernel to replace stock kernel
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ringetje:
What is the difference in steps for a clean flash and a dirty flash?

Clean flash: Reboot to recovery, go to options and select wipe data format, restart phone to recovery mode, go to wipe option and do all wipes: data, cache, system , dalvik-cache, install rom

Dirty flash: Just install rom in recovery

Is this Right?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Dovanchuc7521:
After i flash addon v17. Why Pro??

Gửi từ SM-G935F của tôi bằng cách sử dụng Tapatalk
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] iOrpheus06:
you can remove those clocks via rom control
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Dovanchuc7521:
I did not find in the romcontrol it was not there

:( :( :( :(
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] iOrpheus06:
Lockscreen - weather info or something. Look carefully
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Dovanchuc7521:
Oh i see thank you!!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] iOrpheus06:
No problem! :) :svetius:
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] tofueatsbread:
clean flash- wipe- factory reset- flash rom

dirty- flash rom- clean cache
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] JohnDo3:
For some reason print spooler not working anymore.

com.android.printspooler and the SPrintSpooler7 directory is missing even if i select the s-print stuff in aroma installer. Trying to backup from v14 with apk extractor or titanium didn't work. Printer plugins work and detect the printer but i can't print from within apps. Any suggestions?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Rouzbeh_Rp:
Why AOD not respond to double touch on clock?!

Why AOD not respond to double touch on clock?!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] iOrpheus06:
This isnt s8 port :eek: as far as I know, s7 aod music control is displayed below the clock (double tap the track title). While for s8 port roms with s8 aod, there is that double tap on clock to trigger it. Also if you install s8 aod on this rom, you'll most likely lose that media control feature.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] tofueatsbread:
its not s8 aod

---------- Post added at 07:43 PM ---------- Previous post was at 07:42 PM ----------

he means s8 aod addon, but thats only changing time format(?)
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] iOrpheus06:
Ah i see. Then it should still be same as s7 for the media controls which is double tap track title to display controls
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] tofueatsbread:
probaby:)
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] DamnWorld:
Im using this tom on my galaxy S7 SMG930FD & SMG935FD

Just want to ask.. when this rom will available on galaxy s8?

Hehehe with too much hope ??

I will use this rom again if available on galaxy S8.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ambasadii:
ROM v18.0 are released, links added to OP!

changelog:

- update base to XXU1DQFM official android 7.0

- update stock kernel/modem/bootloader XXU1DQFM for S7 Flat and S7 Edge

- update tgp lite kernel v5.0.1

- update supersu v2.82 SR1

- reworked csc selector in aroma (now 54 countries available)

Addons v18.0 is released!

changelog:

- update mods to new base

- fixed IMS service FC for some users

Please read this before flashing:

1) Arya Mod and Arise Mod works perfect on permissive kernel so I recommended use super-stock kernel. On stock kernel beats audio will not work!

2) If you want use Viper4a on stock kernel and magisk go to "magisk manager" and install ViperFX module then reboot!

3) If you use magisk-root go to magisk app and download section then install viper4fx module and reboot phone!

4) If you use supersu-root sound mods should work out of the box if not flash in TWRP SuperStock Kernel then again supersu and reboot phone!

5) Remember to hit thanks button on XDA thread and consider a small donation if you like my work THANK YOU!

Enjoyed :cool:
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Matze6989:
Is the places in the phone.apk with the s8 addons working?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] jwedda:
I was just reading the OP.. In there you mention how to install from another ROM.. how about installing over a previous version? (I'm still running 14)

Thanks for all the work
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] :
just install the new zip without wiping, almost caches, nothing else
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] jwedda:
Txs

That means flashing both zips.. Will do!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] bdvince:
This is funny because I've never had an IMS Service FC until

after

I flashed v18.. I wonder if this is because I'm on Tmobile USA? (using chenxiaolong's tmobile support pack)
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] paffo:
[MENTION=4074799]ambasadii[/MENTION]: Is there any chance for a modded SystemUI without MiniBattery? Maybe a third choice in Aroma installer ?

I removed 3MinitBatterySettings and 3MinitClock and its fine till that time, but removing MinitBatteryResources ends up with boot loop.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Dovanchuc7521:
I have a bug with the Gallery can anyone to help me. V18 [MENTION=4074799]ambasadii[/MENTION]?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lowis101_2014:
Hi [MENTION=4074799]ambasadii[/MENTION], Secure folder is working?....thanks
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] skorpion1977:
since V18 I have the RCS Icon sometimes. How can I get rid of it? I tried replacing the IMSSservice APK but then I get FCs and an unusable ROM :(
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] tiripiri:
i can't play my video from gallery. but i can play it if i try to open with video aplication
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] unoturbo1:
Same here...
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Mr.Wolves:
Very fast and smooth rom .. the best I have used so far ... thanks do much
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Lexuzz89:
No problem here

---------- Post added at 09:33 PM ---------- Previous post was at 09:29 PM ----------

You are simply awesome! I never got so fast updates of a rom! Best developer ever!!!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] morteza9956:
it is work for FD?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Gingepie49:
Installing the addon pack seems to break Magisk... Just asks to upgrade to v12.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Edge330:
Guys can you help me to solve issue.

There is not list of all languages when I press add language for keyboard, there are only few pre-installed languages while other are not avaible.

EDIT: I deleted keyboard settings and now is everything fine! :)

Poslano sa mog SM-G930F koristeći Tapatalk
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Edge330:
I'm facing some problem.

When I want take photo with front camera placing finger on sensor next to camera nothing happend, I don't have any reaction by red light...

Is something broken in my case or I need just modify something in settings? [emoji14]

Poslano sa mog SM-G930F koristeći Tapatalk
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] SirDre:
Samsung Video Player APK is missing. Download it at apkmirror. :good:
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] phara0n:
it keep rebooting to TWRP after installing the v18 , v17 was just running well
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Edge330:
Everything fine with v18, I also installed superman kernel which is super battery friendly, but a bit slower then other ones.

Poslano sa mog SM-G930F koristeći Tapatalk
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] rfburen:
Is superman kernel the same as the superstock kernel? If not where can i find the superman kernel?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Edge330:
I think both kernels are same by default, super kernel has more governors to choose, by I run it by default.

Poslano sa mog SM-G930F koristeći Tapatalk
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] lagoskon:
I use notorius v1.4.9 after suggestions from telegram group and I find it almost perfect with v18. I will make it my default kernel.

Στάλθηκε από το SM-G930F μου χρησιμοποιώντας Tapatalk
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] LiVeBeaT:
Is it worth updating from v16 to v18? Can someone tell any difference?
[Tilt, TyTN II, MDA Vario III Accessories] spaanplaat:
I just got my hands on a rds / tmc reciever from tomtom. It has a connector which is on the tomtom go's. I was wondering if it is possible to connect this to my kaiser by an adapter. I also was wondering if anyone could tell me what type of connector the external gps port is and what type of port is on the go? Perhaps I can make my own adapter but I need to know what type of port it is.
[Tilt, TyTN II, MDA Vario III Accessories] wing103:
Kaiser already have the built in GPS?

Why you want to built the adaptor for??

I do not understand what you asking here....
[Tilt, TyTN II, MDA Vario III Accessories] spaanplaat:
It's a TMC rds reciever from tomtom. It will update any traffic jams and mobile speedcams. It would be great if I get it working on the kaiser. It seems that the coax connector in the kaiser is a MS-147-C(LP)-2 connector. The tomtom tmc module has some sort of a 2,5 mm jack connector but with a metal ring around it. I can't find the name of the connector anywhere. But I'm sure if I can find out the names it would be possible with navigon to update traffic on route.
[Tilt, TyTN II, MDA Vario III Accessories] Shagman68:
yes, i'd also like to know what kind of connector is on the AT&T Tilt/kaiser. i bought an external gps antenna for better signal, and thoght id figured out that it uses the MMCX style connection, but after receiving it from Ebay, it does not fit. Now i ned to find an adaptor to got from MMCX to Tilt GPS external connector, or splice a new correct end onto my external antenna.

Shaggy
[Tilt, TyTN II, MDA Vario III Accessories] kilrah:
The port on the Kaiser is only a connection for an external GPS antenna. The Tomtom RDS device uses a proprietary data interface that doesn't carry the same kind of signals at all. You won't be able to connect it to the Kaiser.
[Tilt, TyTN II, MDA Vario III Accessories] Shagman68:
I found the MS-147 connector at HighRose corp, but they want $25.00 US for that tiny little connector. I only paid $12.00 for my ext gps antenna. So, I'm trying to go the sample route for a free connector. Said they were gonna ship it this March. Long time to wait for it, but better than paying that crazy amout for such a tiny connector. I could machine a one'sy order like that on the lathe at work for way less $$$ than that. And they are prolly running them on a CNC Screw Machine, pumping out 1 part every 3 to 10 seconds. Uggghhh.

Shaggy
[Tilt, TyTN II, MDA Vario III Accessories] ADB100:
This just isn't going to work, stop trying and either give the RDS/TMC receiver to someone who has a compatible TomTom or put it on eBay. believe me this won't work....
[Tilt, TyTN II, MDA Vario III Accessories] Rick76:
Just buy Garmin Mobile XT for your Tilt. It has traffic updates.
[LeEco Le Max 2 Questions & Answers] siijii:
Hello, I have got a Le Max 2 with 6 GB / 128 GB (used, no warranty). Got it with ROM EUI 5.8.019S.

I have severe mobile network problems. I live in Dusseldorf, Germany, where LTE/4G (vodafone) never was a problem. The Le Max 2 shows 4G, often H or E or no service. Very rarely I get up to 15.000 kbit/s, but more often I get nothing. I tried with new APN, both SIM slots, vodafone and O2-SIM cards, reset to factory and finally i changed to Madsurfer ROM which works fine but does not change the network problem.

I don't know much about mobile network management but it seems like something is going wrong there. When my phone can not work with 4G it does not fallback to 3G or 2G but is completely offline.

Is it possible to flash a different modem?
[LeEco Le Max 2 Questions & Answers] Filozof71:
There is description here how to check bands. Maybe you have US bands? There is also newest version of ROM 5.9 21s

If I help you please express it.
[LeEco Le Max 2 Questions & Answers] siijii:
Do you mean the post about activating LTE / 3G bands? I tried this and it improved a little but only for a while (maybe random coincidence) and now it seems to be even worse. I flashed several roms with twrp but there was no improvement.

I found out that the modem settings are stored in special small partitions like modemst1 / -2 and you can erase them with fastboot. There exist some post about other phones where it helped to erase them and after a reboot they are created new (from other backup partitions) but I hesitate before I have further information - though I think I can not destroy more. :(
[LeEco Le Max 2 Questions & Answers] jaspeao:
The modem files are changed by original roms.

Cooked roms do not change modem files.

so, try to install a original rom, like indian o chinese...
[LeEco Le Max 2 Questions & Answers] neo299:
Try with the Indian ROM.
[LeEco Le Max 2 Questions & Answers] siijii:
I flashed indian and chinese stock (with full wipe each time), did not help. Tried also madsurfer, TeamSpain Revolution and now Rom V6-X820 of Bshuy2003.

I still get network, internet works, after a while I can't download anything and often lose network completely or get E(DGE) though LTE signal should be good even inside building (in Düsseldorf) where I am testing. My Note 4 gets 4G all the time with no problem. I do not only have that problem in buildings though. Net is unreliable even outside. Works and then stops working after a while.

I installed LTE Discovery and found out: The Phone connects to LTE band 20 station, RSRP from -70 to -90 dBm (which is good), I can download at reasonable speeds (not very good though), after a while it connects to LTE band 3 or 7 stations with bad RSRP (above -100 dBm, often -115 dBm) and I can't download anything (My Note 4 can even with about same RSRP). Often it then moves to (E)DGE. If I restrict the Phone to 3G sometimes I get H or H+ (HSPA) but no good connection. Often carrier is lost completely. Sometimes LTE Discovery app states "Potential eCSFB issue detected", maybe there is a problem with the Fallback management.

It would work if the Phone did not change vom LTE band 20 to 3 or 7 stations.

I found this in CatLog, could it be related to the problem?

There were also entries with "LTE or EDGE Unknown CSS supported -1 ...."
[LeEco Le Max 2 Questions & Answers] sailog:
I also faced the same problem with brand new Indian X821. Mobile signal very weak or not signal at all. No amount of flashing stock or custom ROM fixed the problem. Flashing new or old NOH-HLOS.bin doesn't help. Other than this, there is no problem at all with the phone.

Any help is appreciated.
[LeEco Le Max 2 Questions & Answers] masterfullcito:
any update on this?
[LeEco Le Max 2 Questions & Answers] IFightCode:
Negetive

I didn't face such issue. Probably hardware problem?
[LeEco Le Max 2 Questions & Answers] sky104hk:
Guys, check out this page for all x820 modem, hope it's help!

https://yadi.sk/d/woKdrlRrv8yhr

Flash it with twrp and reboot.