Can't send MMS/pictures on Nothing Phone 3

[KenCun55]

I recently purchased a Nothing Phone 3 from Best Buy in New Brunswick, Canada.  I transferred my physical SIM over to it and set it up.  Everything seemed to be working until my sister tried to send me a group MMS message from her iPhone and I didn't get it.  All my other Android using family members received the text but me, it showed something was trying to download from her but it would not load and every time someone replies I get another message trying to download from that person and again it doesn't load.  Previous to the Nothing Phone 3 everything worked fantastic, never had any issues.  I checked all the settings and everything looks correct.  Is this a carrier/phone model compatibility issues?

[KenCun55]

Thank you, this seems to be working now!!

[softech · Accepted solution]

It's an APN settings 

You can ignore the fields you dont see, and here is the full APN settings , update accordingly 

APN: sp.mb.com
Proxy:
Port:
Username: <blank>
Password: <blank>
Server:
MMSC: http://aliasredirect.net/proxy/mb/mmsc
MMS Proxy: mmscproxy.mobility.ca
MMS Port: 8799
MCC: 302
MNC: 220
Authentication Type: Not Set
APN Type: default,supl,mms
         or    default,mms,agps,supl,fota,hipri
           (might need to include DUN for hotspot, please note case sensitive)
APN protocol: IPv4
APN roaming protocol: IPv4
APN enable/disable: APN enabled
                or  Turn APN on/off APN turned on
Bearer: Unspecified
MVNO (Mobile virtual network operator) type: GID
MVNO (Mobile virtual network operator)value: 4D      (or try:   4D4F)

[KenCun55]

Also, in the upper right corner in the status bar it shows VoLTE which is why I asked the question if it's a carrier/phone compatibility issue

[KenCun55]

In the settings MCC and MNC do not exist

[softech]

@KenCun55 

Try update the APN

APN: sp.mb.com
MMSC: http://aliasredirect.net/proxy/mb/mmsc
MMSC proxy: mmscproxy.mobility.ca
MMS port: 8799
MCC: 302
MNC: 220
APN Type: default,supl,mms
                             or             default,mms,agps,supl,fota,hipri