Based on my research, they say it is recommended to replace the full LCD and touch screen digitizer. While in theory it is possible to only remove/replace the top glass, there is a good chance the LCD underneath gets damaged while removing the glass. That said, the BLU vivo 5R glass is available on amazon for under $50.. check this out The local phone repair shops in the neighborhood mall should be able to help get this fixed. Their labor charges are around $60 Disclaimer: I haven't yet bought the digitizer or gotten it fixed, will do it hopefully soon...
Qs: how to come out of guest mode on BLU 5R? Answer: Option 1) We need to contact BLU and they would probably share an APP that we need to install that solves the problem. OR Option 2) I have done that work for you... Check out my blog to see the solution and also find a link to download the APK that BLU shared.