thanks for the time and attention I am a less experienced midibox user, in indonesia, i have built a system midio128 control midi keyboard / organ controller modification organ and button panel button with stm32f4 will and i have followed all the instructions from de ucaps also but when i input hex bootloader filehttp://www.ucapps.de/index.html?page=mios32_bootstrap_newbies.html, also hex midio v3 .19 on lcd 2x 20 has not appeared as in the picture like this, but i have set it like the one in for midi player via sd card module please help it especially regarding mios 32 hex file for midio 128 v3 http://www.ucapps.de/mios32_download.html bundle package like the one in hex seq 4 file for sequncer as i have explained and i sent the picture through this midibox forum this video update :