iPhone 6 Screen starts flickering hours after battery replacement
So I replaced my iPhone 6 battery earlier this morning and everything was working dandy, battery life was great and no problems doing the repair itself. Later this evening I start getting this weird flickering of the backlight on my screen. I tried reinstalling the battery and playing around with the brightness, rebooting the phone, etc. Nothing is making it go away. Also, the battery seems to be draining faster than usual too. Why would this start happening hours after the replacement.
P.S. I did not disconnect the display from the back casing, ribbon and cable were still connected while doing the battery swap.
Thanks to anyone who can help!