Dear Sir Please help me My watch can't touch screen and i can't return to stock

Dear Sir and all concern ,

I got the problem on my Huawei watch , Touch screen isn't work and now i try to return to stock by following this method http://forum.xda-developers.com/huawei-watch/general/guide-return-to-stock-huawei-watch-t3219596

I can using Fastboot abd follow on this step

fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img

But i can't flash System.img file sir it said " that target reported max download size of 63963136 bytes
Invalid sparse file format at header magi "

And now i don't have no idea what i can do after this sir .
I love this watch and i don't want to loss it

Thank you for kind support and so sorry for poor English

Dear Samsung, Why?? It doesn't make any sense!

You guys must have noticed the unreasonable difference between Galaxy devices of US & International. In S7, the lack of device logo at the back and the ON/OFF hint on toggle buttons in touchwiz. These differences doesn't make any sense at all. Why they have to do that?

Also the usage of different chipsets for various versions.

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