EEPROM / Chip Replacement (Legacy Modules): For INFI 90 modules and cards (such as the IMMFP03 or IMMFP12), firmware is physically stored on chips. Upgrading these versions requires purchasing and physically swapping out the firmware chips or purchasing refurbished modules with updated firmware.
This firmware is for the NCOM04 / IMCOM04 Advanced Controller Module. The 1900072 chip is common to both the NCOM03/IMCOM03 and NCOM04/ IMCOM04 modules, the 1900075 chip is only for the latter. Each have their own rev levels, they are listed as xx/yy where xx is the rev level for 1900072, and yy is rev level for 1900075.