To Block your lost 9mobile SIM card, follow the instructions below: Contact 9mobile customer care immediately and report the lost SIM. Call 08009999999 from another phone. Provide your name, 9mobile number, and other details asked. 9mobile will temporarily block the SIM as reported lost. Step 5. Re-enter your new PIN code when you are prompted to confirm. Press "OK." If the codes have been correctly entered, an "Unlocked" confirmation will appear. Otherwise, you will be prompted to re-enter the PUK. Verify your codes and try again, starting at step 3. Advertisement. You may need to attempt a phone call before you are prompted to enter the code. Follow the steps to create a new SIM PIN for your security. You must enter it twice. If you're not prompted to enter a PUK code, open the phone dialer and call **05* [PUK]* [New PIN]* [New PIN]#. Enter your PUK code in the [PUK] field. In case our phone is lost, then someone else can take our sim for bad purposes. So you need to set up SIM card lock to protect SIM, you need to enable SIM PI Place the nano-SIM card on top of the SIM card. Make sure that the angled corner of the nano-SIM card is in the top-right corner of the card when looking down at it. Make sure that the bottom-left-most corner of the nano-SIM card is lined up over the bottom-left-most corner of the SIM card that you're going to cut. 7. This SIM card is blocked. Contact your mobile operator for the PIN unlock key (PUK). 10 attempts remaining. PUK required.A personal unblocking code (PUC), al After arrival: Open Settings. Tap Cellular or Cellular Data. Then: If your device has a single SIM card or eSIM, turn on Cellular Data, then tap Cellular Data Options, and turn on Data Roaming and other settings suggested by your carrier. If your device uses Dual SIM or Dual eSIM, turn on Cellular Data, tap the number you want to modify, then To block your Jio SIM card, you need to call their Jio customer care contact at 199 from the JIO SIM you want to block. If you have lost or misplaced your SIM card, you can call any other number on 18008899999, provide relevant information, and they will block your SIM. 2. Block Jio SIM via Reliance Digital Store. ZBu8z.