I'm trying to load the last HDF 6.4 on a Zgemma SH2 the flash procedure is done regularly but on the display after the usb pen has finished flashing the word FLASH remains for a long time without the decoder restarting (I left it for even 30 minutes).

What can I do?

I've tried to install HDF 6.3, but unfortunately the situation doesn't change. It is 15 minutes that the USB pen no longer flashes, but nothing restarts, there is always the word FLASH on the display.

I tried to install other images, Openpli 7.0 and Openspa 7.3. Both work.
But I prefer HDF

also known a strange thing, the two images working are 60 Mb while the HDF is 90Mb.
Could this be the problem? Too big.

Yes, but then I could never install the HDF 6.4

But now what is the point of making an image for a decoder that cannot be installed. I don't understand the meaning.

and where can I find smaller HDF?