M10 & M20 Both already received 2 Major Android Versions Updates. Now these devices only receive quarterly security updates. (Samsung only gives 2 Major Android Versions Updates to devices)
Made in China means "Parts Assembled in China". Officially Parts are made by US,Korea,Thailand etc. So all parts are orginal.. They assemble parts in china. So don't need to worry. if you have mobile made in china it means your mobile assembled in ch...