These wrong indications from various apps has everyone of us. Only Antutu system information is showing the right processor. Why don't you trust the foto?:rolleyes:
I'm using cm11. There you can find the setup for different ring-tones for SIM 1 & SIM 2 in the dialer app.
Open dailer app and go to settings/SIM card settings. Now you can configure different ring-tones for each SIM card.
If you have really a redmi hm 1std this should be the latest multilang-rom for your 1S-TD:
Xiaomi Redmi 1S TD-SCDMA - Stable 24.0.0 Multilang
in this forum:
MIUI Weekly ROM Releases