Сan't upgrade TP-Link TL-WR1043ND Ver 1.8

[sp_archer]

I use my WR1043ND Ver 1.8 with Gargoyle Version:1.5.9.
It was flashed from gargoyle_1.5.9-ar71xx-generic-tl-wr1043nd-v1-squashfs-factory.bin
and works without any problem.

Now I want update to 1.5.10.
I take gargoyle_1.5.10-ar71xx-generic-tl-wr1043nd-v1-squashfs-sysupgrade.bin
chose it on Upgrade Firmware Tab,
chose "Attempt to Preserve Settings"
press "Upgrade Now" button...

And Nothing Happens

I see message "Uploading Firmware"
wait about 15 minutes, then just turn off router

Thanx God, when I turn on router it start normally with old Gargoyle Version:1.5.9.

I take a chance and repeat it ones more without "Attempt to Preserve Settings"
Result is the same.

What's wrong?

Thanks in advance.

[sp_archer]

It's fantastic!

Just now try ones more.
End everything OK.
Now my Gargoyle Version = 1.5.10

[e2000]

is your v1.8 s/n 12xxxxx series? if so did you upgrade straight to gargoyle or did you downgrade to german firmware first?