What happens when you boot up? Do you see the startup screen with hardware,
FPGA, system version, program version and so on? Or does it just go directly to a blank screen?
If it shows the startup screen, there will be a message showing whether the
program loaded a config file: if it found a file it will read “Reload parameter from disk”.
If no file is found you will see “Parameters not found” or something like that.
If a config file is loaded and it freezes up after that, you should delete any
XXXXX.WPT on the flash drive; you will need to boot up to a running program
and connect to a computer via USB to do this. It’s possible a corrupt config
file may be causing this. Earlier versions used a WPT extension for their
config files, but I think the later (with 8Mb devices) versions use a different extension.
If it goes directly to a blank screen something likely got corrupted.
Can you load any other programs into slot 1 (or any other) and have them work?
I take it you get the .rdy file after copying the hex file when you instal the program
with the bootloader? If other programs load/run OK and there is no WPT config file
on the device maybe the HEX file got corrupted somehow?