mesa 6i25 failed to install mesaflash configuration

I want to try configuration for hostmot drive as written in manual:
mesaflash --device 5i25 --write 5i25 <config.bit>
but I get error

"no 5.25 device found"

I changed only jumpers for power supply W1, W2 - Up.

Should I change jumpers for PCI clock?

When I turn on pc, board 6.25 light up 2 last Leds with red and lights-down. When PC is running, the doesn't lights.

Edited:
I change clock freaquency to 66MHz (for PCIE).
I get another error:

Error: BootSector is invalid

I use last 2.8.0 version of ISO. PC is x64 bit system with core i3 CPU

1. A 6I25 _must_ be jumpered for 33 MHz if using 5I25 firmware
2. To write a new bitfile, you would run mesaflash like this:
sudo mesaflash --device 5i25 --write somebitfile.bit

As I understand, on official cite present only firmware for 5i25.

But when I run mesaflash with
"sudo mesaflash --device 5i25 --write 5i25_7i77x2.bit"
I get error
" Boot sector is invalid"

At one time mesaflash had problems with 64 bit OS's
Can you try the latest mesaflash?

github.com/LinuxCNC/mesaflash

I run mesaflash --write with function --fix-boot-block
and process is stuck under
"erasing sector 0 for boot block" and it stuck.

Can I stope that process?

Is the 6I25 jumpered for 33 MHz?

yes, i moved them back

OK I guess the first thing is to see if the card still works and is detected

If you power cycle the system and run:

lspci -vv | grep 2718

what do you get?

I get
DPIO module: Device 2718 : 5125 (rev 01)
Device 2817 : 5125

And also, I think I reinstalled mesaflash but how to check if it's updated?
Problem is same ... boot sector is invalid

Did you install the latest mesaflash? (from the link I provided)

Did you try just reading the current configuration:

sudo mesaflash --device 5i25 --readhmid