Letv 1s comes with China based software, which includes Chinese apps and services. There is also no multilanguage support. That’s why many users having this phone in Europe faces lots of difficulties when using it even in default English language.
Not long ago, we made a tutorial on how to update Letv 1s with great custom ROM made by Android programmer with nickname BB72. This custom ROM includes multilanguage feature and has no Chinese apps or services. Furthermore, major bug fixes were made for IR Blaster to work.