When using a MTP850 in connection with org. carkit and LARDIS:ONE, a hotfix must be installed so that the serial communication works. With the MTP850, RTS/CTS is now active by default and cannot be set via CPS, but only with a hotfix to "Hardware Flow Control: NONE".

This hotfix is available as MTP850_MR14-MR18_No_Flow_Control_on_PEI.hfx to the respective programming departments.