hai, I am working for a bootloader project. I downloaded a hex file (blinky.hex) through the bootloader to the 8051 microcontroller & it works fine (i.e. led is blinking). Now I updated my blinky file & want to download this new updated file to the bootloader .How to do this. If I reset my bootloader is it enough? Do I need to make any changes to my front end which is in VC++ 6.0. Back end is in C for fo20 devices. Please help me with the code. Thanks, Sadhana