Chosen Solution
I replaced the screen at my iPhone 6s, it works perfectly for a few minutes then suddenly blocks the touch and not work correctly. the flat cables are well connected and in good condition , I have already done a restore but I did not fix it.
You possibly have a defective replacement screen. There are varying qualities of screens available on the market, even though everyone says they sell the best. Th only clue is the price. Low cost screens are lower quality, period. That said, some expensive screens are junk too…you just have to buy from a reputable supplier. Try installing your original cracked screen to see if the Touch works properly. If it does, then that means your replacement screen is defective and you should seek a replacement/refund.
