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+--- Forum: GSM Module (https://www.comfortforums.com/forum-48.html)
+---- Forum: UCM/GSM Firmware (https://www.comfortforums.com/forum-98.html)
+---- Thread: UCM/GSM4 7.029 (/thread-3532.html)
- slychiu - 09-27-2013
GSM 7.029 firmware allows UCM/GSM3 firmware to be upgraded to UCM/GSM4 firmware even though the two types are different
With GSM 7.029 firmware installed, the firmware can be upgraded to UCM/GSM4 firmware
However, a U2 EEPROM 24LC256 is needed in the U2 IC socket and the GSM Submodule needs to be SIM900. See Upgrading information at http://www.comfortforums.com/forum48/3527.html
New Features
- Can be upgraded to GSMv4 firmware which is a different Type
- Implemented Serial Number for future use