my phone is not work properly after root my problems isis as follows

[AC Question]

Hello sir!
My self farhan i have query about my phone it does not install apks files or wifi signal are not connect if phone is not place in nearly to hotspot or router ? My phone description is a micromax unite 2 which is rooted by my brother and it is not work properly after root sir i want to know what can i do for my these two problems