Re: Sierra EM7455 - Couldn't check if unlock required: 'SIM not inserted'

Hello again, after another reboot, the initial error message appeared again, which is: Couldn't check if unlock required: 'SIM not inserted' But I do get a new sim card status now: error: voltage-mismatch (4) Further reboots won't change this to "working". I tried so many steps, I can't rem

Re: Sierra EM7455 - Couldn't check if unlock required: 'SIM not inserted'

Hello Aleksander, I was lucky, after a reboot it just worked. Yes the EM7455 is integrated in the laptop. Thanks for making this stuff work! I executed the commands you said, with the effect that the connection stopped working and I had to restart the ModemManager. I'll just insert the output

Connection instability

LEDE kernel 4.4.42 mmcli 1.7.0 mc7455 tp-link archer c7 config interface 'wwan' option device '/sys/devices/platform/ehci-platform.1/usb2/2-1' option proto'modemmanager' option apn 'x.x' option lowpower '0' MM debug log