error with rom 26.0.30.50.rom

[obeyealink]

Hi I download from your link but when i try to open the rom with the tool, he tell me "failed to open rom file" while with file 26.30.0.29.rom I can open without problem the rom.
Tanks

(10-17-2013 09:12 AM)Yealink Support Wrote:  Hi obeyealink,
It is indeed 2MB.
Could you download a new one?
http://www.yealink.com/Upload/W52P/V40/26.30.0.50.zip

I have tried it, and I succeed.
I upgrade from 26.30.0.40 to the new 26.30.0.50
These are my steps:
1.Open Update Tool,
2.Browse to load firmware,
3.Connect one side of USB cable to computer,
4.Press OK button of handset to activate it,
5.Connect other side of USB cable to handset,
6.Click upgrade.

I attached my updating picture.

Could you try again?

Thanks