How to Fix SIM Not Provisioned MM#2 Error on Android

By ErrorFix · Updated October 15, 2026 · 5 min read

What “SIM not provisioned MM#2” means

Every SIM card has to be “provisioned” — that’s the carrier’s word for registering the card against your account and your phone number on their network. When you pop a SIM into your Android phone, the phone reads the card and asks the network, “Is this one of yours?” If the network answers no — or never got around to activating the card at all — Android shows “SIM not provisioned MM#2” and refuses all cellular service. Wi-Fi still works fine; it’s only the mobile connection that’s dead.

This is one of the most common errors for new SIM cards. A fresh card can show it for minutes or even hours after you insert it, simply because the carrier’s activation system is still working through a queue. But the same message appears for older cards too — after a number port to a new carrier, after a long period in a drawer, when the card’s contacts get dirty or the tray gets bent, or when the phone is locked to a different carrier than the SIM belongs to.

The good news: this is almost always a carrier-side or card-contact issue, not a dead phone. Work through the steps below in order — the first three take about five minutes and isolate the problem, and steps 4 and 5 cover the carrier side. Most people have signal back by step 4.

Common causes

• SIM not yet activated: brand-new SIMs show this error until the carrier’s activation system processes them, which can take minutes to hours.
• Loose or dirty SIM contacts: a card that shifted in its tray, dirty gold contacts, or a slightly bent tray break the electrical connection.
• Number port in progress: while a port from your old carrier to your new one is running, the SIM sits in this unrecognized state until the port completes.
• Carrier-locked phone: a SIM from a different carrier in a locked phone can’t be provisioned, producing this exact error.
• Damaged or deactivated SIM: physically worn-out cards, or SIMs deactivated after a long period without use, fail provisioning permanently.

How to fix “SIM not provisioned MM#2” — step by step

Start with steps 1 and 2 — they’re quick, and the tray reseat fixes this more often than anything else.

1. Restart the phone with the SIM inserted. Press and hold the Power button, tap Restart, and let the phone boot fully before checking for signal. A fresh boot makes the phone re-register the SIM with the carrier network, which clears temporary modem glitches. If you just inserted a brand-new SIM, give it 15–30 minutes after the restart — activation can still be processing.
2. Reseat the SIM card. Power the phone off completely — don’t just sleep it. Push the SIM ejector tool into the tray hole and pull the tray out. Lift the card, wipe its gold contacts gently with a dry, soft cloth, and check the tray for bends or cracks. Set the card back so it sits flat in its cutout, push the tray fully in until it clicks, and power the phone on. A loose or dirty contact is the single most common cause of this error on older SIMs.
3. Test the SIM in another phone. Borrow another phone — ideally an unlocked one — and insert the same SIM. If the error shows there too, the problem is the SIM card or your carrier account, not your phone: skip straight to step 4. If the SIM works fine in the other phone, your phone’s SIM reader or a carrier lock is the issue — check whether the phone is carrier-locked before going further.
4. Contact your carrier about activation and provisioning. Call from another phone or use the carrier’s app or chat support, and ask them to confirm that the SIM is activated and provisioned for your line. Specifically ask: is the activation complete, is a number port still running, is there any suspension on the account, and does the SIM match your plan? If activation failed on their end, they can usually re-push it while you’re on the call.
5. Reset network settings. On stock Android go to Settings > System > Reset options > Reset Wi-Fi, mobile & Bluetooth; on Samsung go to Settings > General management > Reset > Reset network settings. This wipes stored mobile network data, APNs, saved Wi-Fi networks, and Bluetooth pairings — your apps, photos, and accounts are untouched. The phone then re-registers with the carrier from scratch, which can clear stubborn provisioning failures. You’ll need to reconnect to your Wi-Fi afterwards.
6. Get a replacement SIM from your carrier. If the SIM fails in every phone and the carrier confirms the account is fine, the card itself is worn out. Visit a carrier store with ID or order a replacement online — replacements are often free, the store can transfer your number to the new SIM immediately, and they’ll confirm activation before you leave.

Did this fix it? Quick checklist

• The “SIM not provisioned MM#2” message is gone and the phone shows signal bars
• You can make and receive calls and send texts
• Mobile data works (try loading a page with Wi-Fi turned off)
• The carrier confirmed the SIM is activated and provisioned for your line

If the error only appears with a new SIM and everything else checks out, the honest fix is often just waiting — some carriers take a few hours, and occasionally up to 24 hours, to fully activate a new card. But if the message survives the reseat, the other-phone test, and a carrier re-push, the card is dead and step 6 is the answer.