Locating APN settings on iPhone (Smarty APN Settings iPhone — Quick Guide)
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Using the correct settings is important for stable 4G and 5G performance. This Smarty APN Settings iPhone | UK Mobile Guide article explains the complete process clearly.
This is aimed at UK SIM issues — setup, data drops and weak signal all included.
No signal, slow data, hotspot failure, a locked SIM, roaming trouble or a bad APN — the basics are worth trying first.
This tends to trigger a reconnect without further action — give it a short pause.
Verify the SIM's active status and that data/roaming are enabled per the plan.
Check the Smarty APN entry in your mobile internet settings — it's easy for it to get wiped or saved wrong.
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Troubleshooting checklist
Two steps usually restore a Smarty connection
Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data
Entering SMARTY APN values on iPhone — Smarty APN Settings iPhone — Quick Guide
| Setting |
Value |
| APN Name | smarty |
| Username | (leave blank) |
| Password | (leave blank) |
| MMSC | (leave blank) |
| MMS Proxy | (leave blank) |
| MMS Port | (leave blank) |
| Authentication Type | None |
| APN Type | default,supl |
Review the APN entry via Mobile Network or Cellular Data, save, reboot, and confirm browsing, picture messages and hotspot work.
Internal guides to check next
Frequently Asked Questions About Smarty APN Settings iPhone — Quick Guide
What is the SMARTY APN name?
The SMARTY APN name is shown in the settings table above. On most SMARTY SIMs in the UK, the APN is pre-configured automatically when you insert your SIM.
Why is my SMARTY mobile data not working after entering the APN?
After entering the SMARTY APN settings, restart your phone to apply the changes. If data still does not work, check you have selected the correct APN and that your SMARTY plan includes mobile data.
Do I need to enter APN settings manually on SMARTY?
Most SMARTY devices configure APN settings automatically when you insert your SIM. You only need to enter them manually if your internet or MMS stops working after a factory reset or SIM swap.
What is the SMARTY MMS APN for picture messages?
The SMARTY MMS APN settings are included in the table above. Make sure the MMSC, MMS Proxy and MMS Port values are entered exactly as shown.
Can I use the same APN settings for 4G and 5G on SMARTY?
Yes, the SMARTY APN settings work for both 4G and 5G connections. You do not need a separate APN for 5G — the network upgrades automatically where 5G coverage is available.