Replied by Marshall on Jul 31, 2015
Dear sir
1 they are from different factory,the PCB and software is much different
2 their function is almost same
3 update:SP177-FB is a copy one from original vcm,update by cd
SP240 is original made in china,update depends on chinese factory
right now SP240 is V141,but not ford jlr v141,please notice
they are different software
regards
marshall