Chosen Solution

my screen is cracked and sensor only works on one part of the phone.

Heyyyy I have a blu phone. Wonderful little things for the price. Whats not so wonderful is some of their phones don’t have a back to take off or any other place where you can start prying it open. The screen is probably done in with adhesives which can make for a troublesome repair not to mention that the company isnt all that common in the market- my point being finding parts would be very difficult to come by. professional repair would be expensive and they might be hesitant to do this phone as there is probably a lack of documentation for opening it. I haven’t looked into the specifics but try doing a couple google searches. Your phone might be RIP.