Hello friend I am looking for the procedure to modify the firmware Mstar msd7831, for example change the data of the remote control, wallpaper this is of vital importance where I live it is very difficult to find the original remote controls and well in this way I can customize said firmware , I really don't know if someone from the site will have the program that allows these changes to be made, I would be very grateful for the help provided, I also want to share the firmware for your analysis. https://mega.nz/#!a5gRSQzQ!2ybp0kIeVOckUU0RnJfUzTbB-MYNp9MTedT0tFlktrA