I think it might be translated by Google Translator. I noticed that > Think about the official upgrade of 8GB of memory to 16GB, you need 1500 soft sister coin

I think it might be translated by Google Translator. I noticed that > Think about the official upgrade of 8GB of memory to 16GB, you need 1500 soft sister coins. "soft sister coins" seems to be RMB (人民币). When I put those Chinese characters into Google Translator, it gives me the phrase "soft sister coin".