wtf is wrong with my battery ...whenever my battery goes down to 40% then in seconds it goes down to 0 % ...what's wrong .any solution?please help me .
mi a1 is less costly than Samsung just prime ..but still gives more features than Samsung. like blue light filter ..oreo update n many more .......then what's wrong with Samsung....I think we have to shift MI. ....dear Samsung your company will be o...