Samsung I9300 Network problem solution

Samsung I9300 shows emergency call only on your network bar. It can solve with Z3X box easily.

1. Run Z3X pro tool latest version and select I9300 model. 
2. Backup all data of your phone from backup option.
3. Then select repair option. You need to root your phone.
4. Then click on patch certificate.
5. Wait few seconds until its done. Now it's done and solved your network issue.

Root Help:-

• Go to setting>built number>tap 7 times
• Com back menu choose Developer option>USB debugging on
• Open King-Root (you can root another method) connect mobile and click on root option.

This method also tested in I9082/I9060 and it solved network issue. This method not solve your problem it can be hardware problem. You can check your hardware.