Xiaomi Mobile Data Not Working on eir Ireland

Xiaomi Mobile Data Not Working on eir Ireland – Fix

If your Xiaomi, Redmi, or POCO device connects to eir's network but mobile data doesn't work—while calls and SMS may still function—this guide explains why and how to fix it.

Quick Answer:
Mobile data issues on eir with Xiaomi devices are most commonly caused by incorrect APN settings, data allowance exhaustion, or temporary network glitches. Start by checking your APN is set to data.myeirmobile.ie with MCC 272. If data is available but still not working, toggle Airplane mode, restart your phone, or test your SIM in another device.

Why This Happens

Several factors can cause mobile data problems on eir with Xiaomi devices:

  • Incorrect APN settings – eir requires specific APN configuration. The correct APN is data.myeirmobile.ie.
  • Data allowance exhaustion – If you've used all your data, mobile data will stop working.
  • Temporary network glitches – Restarting the phone or toggling Airplane mode often resolves these.
  • Legacy SIM card – If your SIM was issued several years ago, especially before widespread 4G or 5G deployment, ask eir whether a replacement SIM is recommended.

Check Your Data Balance

Before troubleshooting your phone, check whether you've used all your data allowance:

  • Open the eir app or log in at eir.ie.
  • Text "Balance Data" to 50104.
  • If your data is exhausted, you'll need to top up or wait for your next billing cycle.

Check eir Network Status

Before troubleshooting your phone, check if there's a network issue in your area:

  • Visit eir's coverage map at eir.ie/coverage.
  • Check if there are known outages in your area.

If everyone nearby is experiencing issues, the problem is likely network-related rather than your Xiaomi.

Quick Fixes to Test First

Try these quick actions in order. Check if mobile data works after each step.

1. Toggle Airplane Mode

Switching Airplane mode on and off forces your phone to disconnect and reconnect to nearby towers. This can resolve temporary network glitches.

  1. Swipe down to open Quick Settings.
  2. Enable Airplane mode.
  3. Wait 30 seconds.
  4. Disable Airplane mode.
  5. Test mobile data.

2. Restart Your Xiaomi

Restarting clears temporary software glitches and refreshes network connections.

  1. Hold the Power button.
  2. Select Restart.
  3. Wait for the phone to fully boot.
  4. Test mobile data.

3. Check Mobile Data is Enabled

Ensure mobile data is turned on in your phone settings.

  1. Settings → SIM cards & mobile networks → [eir] SIM.
  2. Ensure Mobile data is toggled ON.

4. Check Default Data SIM (Dual SIM Users)

If your phone has two SIM cards installed, make sure the eir SIM is selected as the default mobile data SIM. Mobile data won't work through a SIM that isn't selected for data.

  1. Settings → SIM cards & mobile networks.
  2. Under Mobile data, select the eir SIM.

Check Signal Strength

Poor signal can affect mobile data performance. Check your signal strength:

  1. Settings → About phone → Status → SIM status → Signal strength.
  2. Excellent: -50 to -75 dBm.
  3. Good: -75 to -90 dBm.
  4. Fair: -90 to -105 dBm.
  5. Poor: below -105 dBm. Data may be slow or unavailable.

If signal is weak, try moving to a different location or near a window.

Check Data Roaming

Normally, Data Roaming should remain off within Ireland. However, if you're near the Northern Ireland border or your plan requires roaming in certain locations, enabling it may restore mobile data.

  1. Settings → SIM cards & mobile networks → [eir] SIM.
  2. Toggle Data Roaming ON if needed.

APN Configuration Check – eir Ireland

Incorrect APN settings are one of the most common causes of mobile data issues on eir.

eir Official APN Settings

Use eir's official APN settings. Ignore APN values published for other countries or networks, as they won't work on eir Ireland.

Setting Value
Name eir Mobile data
APN data.myeirmobile.ie
Username Not set / Leave blank
Password Not set / Leave blank
Proxy Not set / Leave blank
Port Not set / Leave blank
MCC 272
MNC (Leave as default / unchanged)
Authentication type None
APN type default,supl

Leave all unspecified fields at their default values. Do not enter spaces between APN types—use default,supl rather than default, supl.

To verify or update your APN:

  1. Settings → SIM cards & mobile networks → [eir] SIM → Access Point Names.
  2. Select the active APN or tap the + icon to create a new one.
  3. Enter the values from the table above exactly.
  4. Save and select the APN. If the new APN isn't selected after saving, tap it manually so the radio button becomes active before testing mobile data.
  5. Toggle Airplane mode ON for 30 seconds, then OFF.
  6. Restart your phone to activate the settings.

Why Do Calls Work but Mobile Data Doesn't on eir?

If calls and SMS work but mobile data doesn't, the phone is successfully registered on eir's network, but a packet data session cannot be established. This usually points to APN misconfiguration, data allowance exhaustion, or account provisioning issues rather than a network coverage problem.

Why Is My Xiaomi Connected to eir but Shows No Internet?

This usually means your phone is connected to the mobile network, but the data session cannot be established. Check your APN settings, confirm you have remaining data, and restart your device.

Test Your SIM in Another Phone

This quick test helps determine whether the issue is with your Xiaomi or your eir SIM:

  • Insert your eir SIM into another phone.
  • If mobile data works on the other phone, the issue is likely with your Xiaomi.
  • If mobile data also fails on the other phone, the issue is likely with your eir account, SIM, or network coverage.

If You Have a Legacy SIM

If your SIM was issued several years ago, especially before widespread 4G or 5G deployment, ask eir whether a replacement SIM is recommended.

What to do:

  • Contact eir to check if your SIM is outdated.
  • If you have a 5G-capable Xiaomi, a newer 5G SIM may provide better data performance.

Check Preferred Network Type

Sometimes the wrong preferred network type can cause data connection issues.

  1. Settings → SIM cards & mobile networks → [eir] SIM.
  2. Tap Preferred network type.
  3. Try switching between options (e.g., 5G/4G/3G/2G auto, 4G only).
  4. Wait 30 seconds after each change.

Reset Network Settings (Last Resort)

If nothing else works, reset network settings. This removes saved Wi-Fi passwords and Bluetooth pairings, and resets all mobile network settings.

  1. Settings → Additional settings → Backup & reset → Reset phone → Reset network settings.
  2. Confirm the reset.
  3. Restart your phone.
  4. Re-enter your eir APN settings if required.
  5. Note: You'll need to reconnect to Wi-Fi networks afterwards.

Contact eir

Contact eir if:

  • Mobile data issues persist after completing all steps above.
  • Your SIM works fine in another phone but not in your Xiaomi.
  • You suspect a network provisioning issue with your account.
  • You've used all your data and need to top up.

What to ask eir: Ask eir to verify that your SIM is correctly provisioned for mobile data services, confirm your account is not barred, and check whether there are any local network issues in your area. You can also visit your local eir store for handset assessment if the SIM works in another device.

How to contact eir:

  • Call eir customer service
  • Visit an eir store
  • Use the eir app

Final Verdict

In most cases, Xiaomi mobile data issues on eir are caused by incorrect APN settings, exhausted data allowances, or temporary network glitches. Verify your APN, confirm you still have data available, refresh the network connection, and test the SIM in another phone. If the issue persists, contact eir to check your account provisioning or determine whether your SIM should be replaced.

Frequently Asked Questions

What APN should I use for eir on Xiaomi?
The correct APN for eir is data.myeirmobile.ie with MCC 272. Leave other fields at their default values.

Why do calls work but mobile data doesn't on eir?
Usually because the phone is registered on the network but mobile data cannot establish a packet data connection due to APN settings, data allowance limits, or account provisioning.

Why is my Xiaomi connected to eir but shows no internet?
This usually means your phone is connected to the mobile network, but the data session cannot be established. Check your APN settings, confirm you have remaining data, and restart your device.

Does eir require a new SIM for 5G?
Yes. eir requires a 5G-compatible SIM to access 5G services. If your SIM was issued several years ago, especially before widespread 4G or 5G deployment, ask eir whether a replacement SIM is recommended.

Why does my Xiaomi mobile data work after restart but stop later?
This often indicates a temporary network glitch or an IP allocation issue. Try toggling Airplane mode or checking your APN settings. If the issue persists, contact eir.

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