Recently my company has found some “old” FMM125 trackers stored, their firmware is the following:
It is the version with the BG96 module still and after I updated them to the 3.27 version recommended by teltonika they seem to be unable to properly communicate or change their GPRS Status from “Deactivated”
I have alredy tested the SIM cards and they work, I have already tested on a not updated yet version and it works. I also had 2 of the total 8 being able to communicate but only after tinkering a lot with configurations. Even if I get the SIM from one that works and use on the one that doesn’t it won’t work. I can also load the configuration from one that works to one that doesn’t and it wont work.
Any ideas of how can I solve this problem?
I Also have rebooted, reset, disconnected them from the battery, changed power supply, taken them outside. I’m really out of ideas. Any chance I get the old firmware for a rollback?
Here is the firmware version of the ones that won’t work.
