Solving mobile data stops after a phone update
| 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 |
Data, calls or texts commonly fail due to a wrong APN, a local outage, a loose SIM, or software glitches — covered individually below.
Troubleshooting checklist
Run through in order; step two is where most people stop
Clearing cached network data (Mobile Network Not Available Fix)
Before trying fixes, rule out an outage using the UK APN Hub or Downdetector — waiting is the only real fix mid-outage.
Troubleshooting checklist
The list is sequential — most cases resolve before the third step
Testing data with another SIM or network (Mobile Network Not Available Fix)
Toggle Aeroplane Mode briefly from the notification shade to force a fresh reconnect to the nearest mast.
Troubleshooting checklist
Try each in turn; the second step handles most situations
Last resort: factory reset network settings (Mobile Network Not Available Fix)
A complete restart clears the modem cache and forces SIM re-registration, fixing issues an aeroplane mode toggle can't reach.
Troubleshooting checklist
Go through methodically — most people find the fix in step one or two
Step 4 — Re-seat the SIM card (Mobile Network Not Available)
Turn the phone off completely, eject the SIM tray, examine the gold contacts for corrosion, clean gently with a dry cloth, and reinsert before powering back up.
Troubleshooting checklist
In order, please — the earlier steps catch most cases
Step 5 — Check APN settings (Mobile Network Not Available)
No data despite good signal often means an incorrect APN — verify it via Settings → Mobile Network → Access Point Names against the UK APN Hub.
Troubleshooting checklist
These are meant to be tried in sequence, and most stop at step two
Step 6 — Reset network settings for Mobile Network Not Available
Android's network reset (Settings → General Management → Reset → Reset Network Settings) brings back default APN and clears connectivity settings, apps and data unaffected.
Reset an iPhone through Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings for default settings restored after restarting.
Troubleshooting checklist
Go step by step; most people are sorted by the second step
Step 7 — Contact customer services (Mobile Network Not Available Fix)
Nothing worked? Get support involved, with account number and IMEI ready, since it may trace to the account, SIM or a local fault.
Troubleshooting checklist
Work through step by step — the fix is typically in the first two