Modification in mcHF V06 to make accessible the jumper P6 on UI-board
The P6 jumper, located near the MCU, allows you to write the bootloader for the first time (in a new MCU) or also to replace the bootloader when necessary. The problem is that jumper P6 is located on the inside face of the UI board. It is highly recommended to "extend" the jumper towards the edge of the UI board. In this case, I stuck a waste of a female connector with glue and made the male jumper by joining two pins of a male connector. In this way you can rewrite the bootloader without having to disarm almost completely the transceiver.