i do not know why i dont have service when i flash the stock rom. thats why i asked about imeiDon´t remember if I provided this tool link https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwivjYrgyKb7AhWoppUCHVAxDr4QFnoECAwQAQ&url=https://github.com/bkerler/mtkclient&usg=AOvVaw1EA0UgBcE8bbeVuiVn4L7c with it you can make some backups, flashings and more.
You said your IMEI was OK, so? Recovering IMEI is, actually, for newer MediaTek devices, in last round of updates, virtually impossible, by normal means or using regular software. This is just an assumption but, it seems, it depends or relies on other partition to have a proper permission to be overwritten or rather rewrite.
after i restore the custom rom backup i have service sms and no calling. (i can see the imei numbers in settings but no service)
i can make backups and root with twrp.
i have all the modem sfc.. nv.. partitions i can backup and restore those.
i just wasnt able to make a working combination.

i will look for disabled flash in scatter file tonight. and fiddle around some more with this garbage phone tomorrow.
i might try a different sim card as well.
i completely reflashed the stock rom multiple times(3maybe) both 8.1 and 9.0 even did a stock firmware update from 9.0 to 10