screen trace when touching

2 simultaneous problems galaxy s7
One: very faint hair-like trace when touching any portion of screen
Two: avery thin banner at very top of screen in grey and red blocks, mostly
numerals but some letters
P:0/1 dx: -228.5 dy: 611.2 Xv:1.963 Yv:0.034 Prs: 1.0 size0.04 ???

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