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Help me.

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A few common reasons a new Jio SIM looks dead: the SIM hasn’t been fully provisioned at the operator end, the handset isn’t VoLTE/LTE-compatible for Jio’s voice service, the phone’s SIM slot or network mode is wrong, or APN/settings need manual correction. As requested, more specifics help; and ’s advice to try 4G is a good start — below is a focused checklist and what to report if further help is needed.

  • Power-cycle the phone, remove and reinsert the SIM and inspect the SIM for visible damage.
  • Test the SIM in a different, known-working 4G/VoLTE phone. If it works there, the issue is device-specific.
  • On dual‑SIM phones, move the Jio SIM to the slot that supports LTE (many phones only support 4G on SIM1). Set preferred network to LTE/4G and enable any “VoLTE” or “Enhanced LTE” option.
  • Check or create a mobile-APN entry (commonly labeled for Jio). If data doesn’t connect after selecting LTE, a wrong APN can block internet.
  • If the SIM was a number-port (MNP), confirm the porting status — port-in delays will leave service inactive until completion.

Activations sometimes take a few hours. If after 24 hours the SIM shows “Not registered” or fails in multiple phones, the SIM likely isn’t provisioned; a store visit or official support request (with SIM ICCID/purchase receipt and ID used for KYC) will get the operator to check provisioning.

Useful diagnostics to have when asking for follow‑up: phone make/model and OS, whether the status bar shows “No service,” “4G” but no data, or an operator name, whether calls/data worked in another phone, and whether this was a port‑in or new number.

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Change network setting in 4G

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