I’m trying to connect a Quectel EC200U (Tracx-1B 4G module, firmware EC200UCNAAR03A09M08) working reliably as a modem on a Raspberry Pi 5 with Raspberry Pi OS (Bookworm) using a Jio 5G SIM (operating in 4G mode). My goals are to establish a stable internet connection and extract GPS latitude/longitude.
Despite extensive troubleshooting, I’m facing persistent issues with modem detection
Below is the ModemManager Logs
Apr 23 13:51:13 raspberrypi ModemManager[4330]: [modem1] port ttyUSB5 timed out 10 consecutive times, marking modem as invalid
Apr 23 13:51:13 raspberrypi ModemManager[4330]: [modem1/bearer0] checking if connected failed: Couldn’t check current list of active PDP contexts: AT command was cancelled