i've tried to force it with no success. it didn't appeared at the top of the screen.
when i chose lte only i could not make calls.
btw. i've contaced the company [WECOM] and they said that they won't be able to solve it for me because they don't support grapheneos.
they didn't knew what i'm taking about when i asked them about the possibility to send me new settings that include the 4g and volte..
what do i need to do? maybe switch to another company like the 019 company?
tnx