The Redmi 1s MSM 8228 is a lie.
Redmi 1s has a MSM 8226, CPU-Z never lies (yes im a fan boy and i did my research)
Here you will found solution to your Heating problem too, its a MSM 8226 overclocked to 1.6GHz (stock 1.2GHz)
i was keeping my phone screen on for a half hour, my mobile didn't...