Fix TM SIM No Signal 2026

Your comprehensive guide to troubleshooting "No Service" issues with expert diagnostic codes and step-by-step fixes.

Why Signal Fails

Before jumping into solutions, identify the root cause of your signal loss:

Activation

Newly registered SIMs pending activation.

Coverage

Weak network zones or local maintenance.

Hardware

Dirty, old, or improperly inserted SIM cards.

Android Troubleshooting

Follow these tested solutions to restore signal on Android devices:

  • Airplane Mode Refresh: Toggle Airplane Mode for 60 seconds to force a tower handshake.
  • Manual Selection: Navigate to Settings > Mobile Networks > Network Operators and choose Globe or TM manually.
  • Reset Network: Clear outdated cache in System > Reset Options > Reset Wi-Fi & Mobile.

Diagnostic Refresh Codes

Force your radio hardware to restart without a full phone reboot:

Dial: *#*#4636#*#*

Go to Phone Information and toggle "Mobile Radio Power" Off/On.

iPhone (iOS) Solutions

iPhones often require specific carrier updates or setting adjustments:

  • Update Carrier Settings: Ensure your iOS is updated to the latest 2026 version.
  • Voice & Data: Set to 5G On or LTE in Settings > Cellular > Cellular Data Options.
  • Date/Time: Ensure "Set Automatically" is enabled, as sync errors can block network authentication.

TM Roaming Abroad

If you're outside the Philippines, your signal relies on Roaming protocols:

  1. Enable Data Roaming in your mobile settings.
  2. Manually select a local partner carrier (e.g., AT&T, Vodafone, etc.).
  3. Verify roaming activation by dialing #143* if signal permits.

Frequently Asked Questions

Why does my SIM suddenly lose signal?
Usually due to blind spots or temporary maintenance in the Globe/TM infrastructure.


Does a new SIM work instantly?
No, it requires successful registration and often a phone restart to activate the signal.

Final Thoughts

Most signal issues are software-related and solved by a simple network reset or manual selection. However, if your SIM is still showing "No Service," ensure your registration is complete.