Hi Quectel
We have used the module M66FA-04-STDN on our boards and when ordering again it was mentioned that the chip is EOL and that the alternative is M66FB-04-STD. What is the difference between the chips and will it just be a drop in replacement? Will I be able to load my QuecOpen firmware on the M66FB-04-STD? Please also share the datasheet if it is available.