1. How to check the network converge?
Please check the network coverage via
http://truemoveh.truecorp.co.th/truemoveh4g/en/index.html#pane04 before purchase.
2. Can user insert the sim before departure to make sure it works?
The SIM can be tested only in the countries covered. Please note that your location, phone compatibility and capability of partner network operator in the country will affect signal stability. You might experience connectivity
difficulties where there is no cellular coverage of the designated operator.
3. How to make sure a device is compatible with this sim or not?
Make sure the device is unlocked and compatible with the network frequencies as following. TrueMove H has 3G/DC-HSPA on 850 and 2100 MHz 3G/DC-HSPA and the largest 4G/LTE spectrum on 850, 900, 1800 and 2100MHz (bands 1, 3, 5 and 8)
You can contact to your device’s manufacturer or check with the device’s technical specifications for details