Q: Type of module? A: GM862
Q: Firmware version? A: Unknown
Q: Type of starter kit you have? Custom
(S1, S1B, S2, S3, S4, EVK1, EVK2, none, other)
Latetly I have seen a strange behaviour on the GSM modules. I have had a telemetry system working non stop for the past 2 years but the last day I noticed it couldn't register to the network, so I powered off and then powered it up again. The module couldnt still register to the network, so I removed the SIM card and inserted it again and it successfully registered. I noticed this with another module as well, with the latest firmware. It is hard for me to replicate this at the lab. Removing the SIM card could be a hint of what could be the problem.
Has anyone experienced this before? Any hints?