Redmi 3s Lock To Usa Band, Help Required

Jul 30, 2016
Hello members, I bought redmi 3s one day ago. By mistake it is locked to USA band. Now my sim 1 is not working, the phone detects the sim but there are no signals, I can't use sim 1 for anything. Kindly help me to fix this.

I google and found 1 possible way to fix this is to restore QCN file,,, can somebody please give me qcn file for redmi 3s?
Nov 17, 2016
Hello everyone,

I have made a mistake with usa band and looked how to fix it. And i have found a soluce

For information i have a redmi 3x locked in France

I just downloaded this rom

and flashed with xiaomiflashtool

i asked for unlock, and i flashed twrp recovery with new rom and rooted the phone.

With new rom and rooted phone, always band problem, but with wifi i justupdated all apps, and superuser and i downloaded the apk network signal guru.

He detects the band where you are you have just to lock what you need and now my phone is back to life.
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