Hi Again.
Little update.
The Mobile-data issue is now solved for my phone
Found the solution here
(No mobile data exept textmessages)
System Settings > Network & internet > SIMs > (your sim) > Access Point Names
shows your carrier’s correct APN entry and it is enabled?
The solution was to set APN. ( no APN where selected, i think)
Should have checked that before making post 
little wierd that Telegram could send messages.
Have a nice day, now i can use the phone.