Oi MMS Configurações de APN para o Acer Liquid M220

Go to App list, tap Settings Cellular + SIM

If your phone supports more than 1 SIM card, choose SIM 1 settings or SIM 2 settings depending on the SIM that you want to use for Oi MMS.
Turn on Data Connection.

Enable Use cellular data in For limited Wi-Fi connectivity
If you have more than 1 SIM card choose the SIM card for data connection in SIM for data connection
Enable 3G connection for faster data transfer speeds. Also enable Highest connection speed

MMS Configuration Settings: In Cellular + SIM Settings, select SIM settings Add MMS APN If you have a dual SIM phone select the SIM card. Change the below settings APN: mmsgprs.oi.com.br User name: oimms Password: oimms Authentication type: WAP gateway (URL): 192.168.10.50 WAP gateway port: 3184 MMSC (URL): http://200.222.42.204 MMSC port: 8002 Maximum MMS size: 1024 IP Type: IPv4 Tap Save.