How do you change SMS message center numbers in Android system?

1. In the dialer enter *#*#4636#*#*
2. Select Phone Information under Testing menu.
3. Scroll down to SMSC setting.
4. Update the setting.

List of Singapore SMS Centre Numbers:

• Singtel Mobile enter +6596197777
• Singtel Hi! Card enter +6596400001
• Starhub enter +6598540020
• M1 (MobileOne) enter +6596845997
  

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