• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g.
default,supl,mms)• On Android, save then select the profile before testing
MMSC address explained for UK networks
| Step | Action | What It Fixes |
|---|---|---|
| 1 | Check your network status | Confirms if issue is network-wide |
| 2 | Toggle aeroplane mode on/off | Re-registers SIM on your network |
| 3 | Restart your phone | Clears temporary network errors |
| 4 | Check your network APN settings | Fixes incorrect data configuration |
| 5 | Re-insert SIM card | Fixes poor SIM contact issues |
| 6 | Contact your network support | Resolves account or SIM faults |
MMS is what lets picture messages, video clips and audio be sent as texts. It relies on correct MMSC, MMS proxy and MMS port values in the APN — missing these often means failed sends, downloads or blank message boxes.
MMS setup checklist
Copy the MMSC field exactly — http:// is required, https:// stops MMS working
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g.
default,supl,mms)• On Android, save then select the profile before testing
MMS proxy and port settings explained
Go to Settings → Connections → Mobile Networks → Access Point Names, select the APN or add a new one, and enter the MMSC, proxy and port values. Confirm APN Type includes mms, then save and restart.
MMS setup checklist
Get the MMS fields exactly right — the MMSC only works with http://, never https://
• The MMS Proxy field is an IP address only — no http:// prefix
• APN Type must contain mms (e.g.
default,supl,mms)• On Android, save then select the profile before testing
Why MMS fails when WiFi is on
iPhone's MMS settings are found under Settings → Mobile Data → Mobile Data Network, in the MMS section — enter the MMSC, proxy and max message size values, then save by tapping back.
Missing MMS section on iPhone: verify MMS Messaging is enabled in Settings → Messages. If it stays greyed out, the carrier bundle likely needs an update from the network.
MMS setup checklist
The MMSC value must use http:// rather than https://, or MMS will fail
Requesting MMS settings from your UK carrier
If picture messages won't leave, confirm mobile data's on, and recheck the MMSC, MMS proxy and that APN type includes mms.
For stuck MMS downloads, try a manual tap, confirm data is on, and look into Auto-retrieve MMS settings in the app.
MMS quality problems are usually about compression at the sender's end — try WhatsApp or iMessage for sharper images.
Troubleshooting checklist
From the quickest attempt through to the most complete solution
MMS on your mobile network vs iMessage/WhatsApp (MMS Not Downloading on Android)
Given MMS's 300KB-1MB limit and heavy compression, iMessage, WhatsApp or Google Messages with RCS offer better quality by sending over data.