ROM Flashing Lumia 930

[drjackool]

Hi
I have a Lumia 930 phone (+mic #3 & #4 problem). I want to upgrade it's firmware,

FROM:
PackageTitle: RM-1045 VAR APAC HK CV BLACK
Product Code: 059W0J7
Last Firmware: 02540.00019.15053.26005

TO:
PackageTitle: RM-1045 VAR EURO GB CV BLACK
Product Code: 059W004
Last Firmware: 02540.00019.15235.40008

My question is: can i use another product code on my phone? This upgrade can damage to my phone?
What is difference between mention firmware versions?

Thanks

 

[drjackool]

I was flashed it.