Similar to [url] https://forum.sierrawireless.com/t/q2686-loses-registration/4750/1 ]. We have a bunch of modems on the field, which sample data in W32K mode and once per day send collected data via FTP to server. Many of them occasionally experience SIM failure. The modem works OK for several months…

SIM failure during W32K

ljweko April 21, 2016, 6:43am 4

We upgraded all devices to 4.47.6, but problem still persists. CME ERROR 13, 10 and sometimes 515 at random times, now in spring again more frequent.

Topic		Replies	Views
Verizon SIM not detected with MC7455 Legacy AirPrime modules	3	1588	September 25, 2018
Unknown SIM state FX30	5	1050	December 19, 2019
Why "QMI protocol error (14)" IoT Modules	38	6205	June 23, 2022
Issue installing latest cellular firmware on AirPrime MC7455 IoT Modules	1	249	January 15, 2020
[MC7455] no network service / registration denied MC/EM Series	2	6520	February 17, 2018