Xiaomi Mobile Network Not Available Error in UK

Quick Answer:
If your Xiaomi shows "Mobile Network Not Available", first check if your SIM is detected (Settings → About phone → SIM status). If SIM is detected but no network, go to Settings → SIM cards & mobile networks → [Carrier] SIM → Preferred network type → Select 5G/4G/3G auto. Then toggle Airplane mode for 30 seconds. These two steps fix over 80% of cases.

Applies to Redmi, POCO and Xiaomi Phones

This guide applies to Xiaomi, Redmi and POCO devices running MIUI or HyperOS, including Redmi Note series, POCO X/F series, and Xiaomi 14/15.

🔍 Step 1 – Diagnostic Gate (30 Seconds)

Before trying any fixes, answer these two questions:

  1. Does your phone detect the SIM? Settings → About phone → SIM status → If "No SIM" or "Unknown", go to Fix A (SIM issue) below.
  2. Does the error appear immediately or after moving location? If after moving, the phone may be stuck on a previous mast – go to Fix B (manual network selection) below.

📊 Fixes by Probability (What Actually Works)

🔥 Critical Fixes (Fix 80% of cases – Try First)

  1. Check preferred network type – Settings → SIM cards & mobile networks → [Carrier] SIM → Preferred network type → Select 5G/4G/3G auto (not "3G only" or "2G only").
  2. Toggle Airplane mode – ON for 30 seconds, then OFF. Wait 60 seconds.

📌 Optional Fixes (If Above Didn't Work)

  1. Manual network selection – Settings → SIM cards & mobile networks → [Carrier] SIM → Network operators → Turn off "Choose automatically" → Search → Select your carrier.
  2. Restart your phone – Clears temporary modem issues.
  3. Reinsert SIM card – Power off → remove SIM → clean contacts → reinsert firmly.

⚡ Rare Fixes (Last Resort)

  1. Reset network settings – Settings → Connection & sharing → Reset Wi-Fi, mobile networks, and Bluetooth. (Removes saved Wi-Fi passwords only)
  2. Check carrier outage – See section below – only if all other fixes failed and multiple people in your area have the same issue.

Fix A – SIM Not Detected (Separate Path)

If your phone shows "No SIM" or "SIM not detected":

  • Power off → reinsert SIM firmly → power on
  • Try the SIM in another phone. If it works there, the problem is your Xiaomi (SIM slot or software). If it fails there too, request a replacement SIM from your carrier.

Fix B – Error After Moving Location (Mast Handover Failure)

If the error appears after you move between cities or mast areas, your phone failed to re-register. Go to Settings → SIM cards & mobile networks → [Carrier] SIM → Network operators → Search → Select your carrier manually. This forces re-registration.

Quick Carrier Outage Check (Only If All Fixes Failed)

If you've tried all fixes and nothing works, check if your carrier has a local issue. Visit your carrier's network status page. If an outage is reported, wait 2-4 hours. If no outage reported, call your carrier – the issue may be your account (unpaid bill, suspended service).

Carrier numbers: EE (150), O2 (202), Vodafone (191), Three (333)

Test Your SIM in Another Phone (Final Diagnostic)

  • If the other phone also shows no network: Problem is your SIM or carrier. Call your carrier.
  • If the other phone works normally: Problem is your Xiaomi. Reset network settings (Fix 6).

Quick Questions

What does "Mobile Network Not Available" mean?
Your phone cannot connect to your carrier's network at all – no calls, no data, no signal.

Why does this happen after a HyperOS update?
The update can reset your preferred network type to "3G only" or corrupt modem settings. Check Fix 1 (preferred network type) first.

Will resetting network settings delete my photos?
No. Only saved Wi-Fi passwords and Bluetooth devices are removed.

Should I replace my SIM card?
Only if the SIM fails in another phone. If it works elsewhere, the problem is your Xiaomi.

Xiaomi Mobile Network Not Available Error in UK

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