There is enough power to charge the phone in tethering mode though. Dongle is supposed to use far less power than a smart phone used as modem, isn’t it ?

i’ll test with a 3A charger anyway thanks for suggestion

update : dongle tested with max 3A charger, same error…

Could it be the “service type” setting (in luci) ? in the dropdown, no lte option so i use custom then entered “lte” (i did try with umts for no results either).

anyone using successfully a 4g dongle to share settings with me ?