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| IMEI (Serial) Code: |
*#06# |
| Default Security Code |
12345 |
| Firmware Version |
*#0000#.*#51x0# or*#9999# |
| To check the Serial No |
*#92772689# |
| *3370# |
To activate Enhanced Full Rate (EFR) |
| #3370# |
To deactivate EFR Half Rate Mode (HFR) |
| *4720# |
To activate HFR |
| #4270# |
To deactivate HFR |
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