I put this software in my tv but led flashing continuously before was stuck in logo. Are you sure is working please?

I'm sure I've tested it on time

I think somehow the donor firmware doesn't match the CPU or something and prevent it from boot.
There is no other explanation and I see on internet that many technicians have the same problem after programming.
I have the old nand corrupted firmware and the spi but don't know where to look to edit it somehow or to merge both old and new nand firmware to make it work.