Which firmware should I flash?

I have a samsung galaxy s4 gt-i9500 and I am on custom rom MIUI7. I have a question. I want to downgrade to 4.3. In the app PHONE INFO (SAMSUNG) which is for samsung phones only, it is showing me VIETNAM as Country of origin. While I have downloaded the firmware where the name of country INDIA is written as origin. If I flash that firmware, would my device brick or would it cause any kind of problems? Does the country of origin matters while flashing firmwares?
Kindly read the whole OP before answering.[emoji4]

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