Let's learn some codes for MICROSOFT Lumia 540 Dual SIM Mobile. These codes are tested and confirmed to work on several windows mobile phones.
1. *#0000# -Software Version.
2. *#06# - IMEI (International Mobile Equipment Identity).
3. *#21# -Number that “All Calls” are diverted to
1. *#0000# -Software Version.
2. *#06# - IMEI (International Mobile Equipment Identity).
3. *#21# -Number that “All Calls” are diverted to
4. *#30# - Private number
5. *#43# - “Call Waiting” status of your phone.
6. *#62# - Number that “Divert If Unreachable (no service)” calls are diverted to
7. *#67# - Number that “On Busy Calls” are diverted to
8. *#73# - Reset phone timers and game scores
9. *#1471# - Last call (Only Vodafone)
10.*#2820# - Bluetooth device address.
11.*#3370# – Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.
12.*#3370* – (EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.
13.*#4720# – Half Rate Codec activation.
14.*#4720* – Half Rate Codec deactivation. The phone will automatically restart
15.*#7780# - reset to factory settings.
16.*#62209526# - MAC address of the WLAN adapter.
17.*#67705646# - This will clear the LCD display (operator logo).
18.*#746025625# - Sim clock allowed status.
19.*#3925538# - to delete the contents and code of wallet.
Default security code is 12345
20.*#92702689# – a secret menu where you may find some of the information below:
1. Serial Number.
2. Month and Year of Manufacture
3. Displays (if there) the date where the phone was purchased (MMYY)
4. Displays the date of the last repair – if found (0000)
5. Shows life timer of phone (time passes since last start)
Unlock service provider: Insert sim, turn phone on and press vol up-arrow keys) for 3 seconds, should say pin code. Press C, then press * message should flash, press * again and 04*pin*pin*pin#
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