Updated w/ Video L3 Correct carrier not showing Up, Can't save APN so no mobile data
Update heres a video showing the issue https://www.youtube.com/watch?v=z4d_8BhEsr8
When using my Amaysim branded sim card on stock OS on my L3 it will show up correctly as Amaysim as my carrier.
but when I use a custom rom, any custom rom I've tried it will show up as Yes Optus which is the reseller/owner of the physical cellular network.
For some reason even though it doesn't show as Amaysim I can still send receive phone calls and text, but I can't add APN settings as it will not save and they're are no Default apn settings either.
This same sim card will work with proper settings and carrier on the same phone in Stock Os. This same phone data will work with custom roms if I use a different sim such as a Telstra one. Apns can be changed and there are defaults when I use the telstra sim card.
very unusual problem on this phone.
thanks for taking some time to read this problem any ideas?