GPS Tracker TK103B & TK102 firmware

GPS Tracker TK103B & TK102 firmware


Job Description

I have a GPS tracker device TK103B for tracking vehicle and a TK102 for personal usage

The device is controllable via SMS commands and uses AT Command set.

My problem is that after sending some messages my SIM card memory gets full and the firmware is not able to erase the inbox

So I would like to Edit the firmware to fix this problem.

my current firmware have distance based sending. this means that the location information sending is based on the distance between two point. in general Tk103 and 102 sending location data is based on the time interval.
so i was wondering can you put this feature in edited version of firmware?