How To Installation Or Updating Firmware Wiko Android Smartphone Base Mediatek ##BEST##

I'm currently experiencing a TM SIM register issue with my TM SIM, even though the registration process has been completed successfully. The SIM card is properly inserted into my phone, and I’ve already tried several basic troubleshooting steps, including restarting the device, enabling and disabling airplane mode, and switching between different network modes (2G/3G/4G). Despite all these efforts, the SIM still fails to connect to any network. This is especially frustrating since I was expecting the service to activate shortly after registration. I’m not sure if this is a common issue for users registering from outside Malaysia, or if there’s an additional step I may have missed during the process. Any insights, suggestions, or official support would be highly appreciated to resolve this connectivity problem.