Modem

SUBJECT VIEWS FAQ TYPE MODEL LAST UPDATED DETAIL
What are the frequency bands currently supported by the 4G module? Which countries can use it? (GTM-204M Series) 8 Troubleshooting 2020-11-24
The module has been at stat=2, Not registered, and can be registered with another SIM card. What should I do? (GTM-204M Series) 2 Troubleshooting 2020-11-24
How to send and receive long content SMS (content is greater than one sms)? Support Chinese? (GTM-204M Series) 2 Troubleshooting 2020-11-24
After installing the USB Driver on Windows 10, an abnormality caused the computer to be a blue screen. How to solve it? (GTM-204M Series) 12 Troubleshooting 2020-11-24
Demo code can not be normal debugging, what may be the problem? (GTM-204M Series) 2 Troubleshooting 2020-11-24
Use Access Port under AT Command will only get the same command response, can not send instructions, how to solve it? (GTM-204M Series) 4 Troubleshooting 2020-11-24
If the scene will have USB interference problems, there are ways to avoid or prevent interference? (GTM-204M Series) 2 Troubleshooting 2020-11-24
Can I send my voice file? If not, how can I place my voice? (GTM-204M Series) 1 Troubleshooting 2020-11-24
Will I ring the ring when I receive an incoming call? If not, how do I know if I'm calling? (GTM-204M Series) 6 Troubleshooting 2020-11-24
How to check the current SIM card registration status? (GTM-204M Series) 5 Troubleshooting 2020-11-24