Why is the screen flickering on the iPhone?

Question

iPhone

I changed the battery for iphone se, connected the screen, the lower part rippled. Reconnected the cable - did not help. I collected it as it is, threw it away, came in an hour and everything became normal. Dismantled, put the guards. What was it? I'm getting a replacement camera coming soon and I'm wondering what I'm up against, will the iPhone survive the repair?

Answer 1

ah, so who in the SC is barking with details from the norms of backgrounds