Joke Collection Website - Public benefit messages - Sony z2d6503 (desktop version) can only use 4g network for mobile data, as long as the signal grid of 2g or 3g is switched to blank (no service).

Sony z2d6503 (desktop version) can only use 4g network for mobile data, as long as the signal grid of 2g or 3g is switched to blank (no service).

1, turn off the phone, take out the SIM card and try to reinstall it.

2. Check whether the network of the same operator around the mobile phone is normal and judge that it is a network fault.

3. Try to restart the phone. If not, restore the network settings and see if there is any system problem.

4. Replace the SIM card to see if it is stuck. If there is a card problem, it is recommended to replace the SIM card in the mobile service hall.

5. Enter the hardware test, and click "Sim card test" in the hardware test interface to check whether the Sim card status is normal;

6. It is recommended to check the mobile phone problem at the after-sales outlets.