Edited by User5212078984 at 2019-09-27 08:04

https://youtu.be/bKG-uCJ3F2s

Found the solution after many hours work. .  For thouse who have problem same as me with mobile data or LTE signal. . Please follow instructions. First of all
1.inserts sim card
2.Do a factory reset with wipe data from settings.-Storage and backup-Factory data reset-check both (reset phone..and format data..) then start resseting.
3.After phone booted succesfully power off.
5. Donwload through pc latest rom update. Zip.  At the moment
7.2.2 global
6. Boot the phone on recovery mode. Press Vol+  and power button till meizu logo.
7. Connect phone with comp.  Copy downloaded zip file on root of your phone memmory.
8. On the recovery menu check both options and  start upgrading. Please in this stage do not unplug cable and do not  touch  anything.  Phone will boot normally then unplug from comp. do the initial menu config. Of your meizu.

This tutorial is for my case problem and for other software problems or bugs that the fresh meizu note 9 could have

If any of you have again LTE signal problem or any signal problem please do this step.
Dial. *#*#4636#*#*
Meny compare.  Go to phone and there is some option there where you can choose between bands configuration. For europe please choose latest option.  For other countres please inform with your sim card operator.
Hope i was  helpful for. You.

first of all thanks a lot for your reply. finally at least i have an answer. Anyway i have done a full reset and . Didnt helped. Then i  have donwloaded official firmare from here 7.2.2 zip file. Done upgrade  succesfull but then the same . It wont connect with mobile data. I think software and baseband must be flashed with some flash tool but here i cant find any solution. Strange very strange. This is official forum from flyme and nobody  can help. I have bought this phone from official store . Dont understand the plans of Meizu. Just sell and no support..WTF.

Edited by CrEiK at 2019-05-24 05:12

Hey, i had this problem when i bought it, i just made a factory reset and it was alright!  I hope it helped you! (Factory reset with the sim card inside the phone, be sure to have save all the files and contact you have in the sim card)

I have tested my SIM card in other phones and is OK . In Meizu note 9 it's not.  Now.  It's my first Meizu and is a shame that no one helps here is there any operator or someone from Meziu that can help people who has problems.  This is the way to grow up.  This is the way xiaomi  goes
Big community and big help for clients who has problems.  Is anyone who can speak clearly English German Italian French . Please operators of this forum  tell us where to claim our problems.  Make a good forum community.  Not only questions  but also answers for us

Is it normal to install this SIM card in other mobile phones?