There are few things more frustrating than picking up your Samsung smartphone, ready to make a call or send a text, only to be greeted by a stark error message:
Before you panic or head to the store, run through this diagnostic checklist to determine which scenario you are facing.
Samsung phones count PUK attempts globally – even if you restart or swap devices. samsung sim card permanently blocked
15 minutes if you go to a carrier store; 2–7 days if mailed.
Go to Settings > Security and privacy > Other security settings > Set up SIM card lock . Toggle to OFF . You will need the current PIN to disable it. If you don't know it, the default is often 0000 or 1111 . If those fail, contact your carrier for the default PIN. There are few things more frustrating than picking
The carrier will link your existing phone number and account to the new card.
Your Samsung phone is fine. Only the SIM card is dead. Go to Settings > Security and privacy >
This scenario involves the phone's firmware, not the SIM card. If your Samsung phone is "locked" to a specific carrier (e.g., T-Mobile, AT&T, Vodafone) and you insert a SIM card from a different carrier, the phone will reject the SIM.
You cannot unblock a permanently blocked SIM. You must get a new SIM with the .