Since my Galaxy A14 updated to Android 15 / One UI 7 on Wednesday (10 July), USB screen mirroring has been behaving erratically. I normally use Vysor (lifetime subscription), but after the update, the display frequently becomes laggy, flickers, or turns white/pixelated.
I've also tested other apps like Scrcpy, and they show the same behavior, so it’s not a Vysor-specific problem. Everything worked perfectly before the update.
Developer options are set correctly (USB debugging is enabled, animation scale is off, etc.), and I’ve even reduced the mirror quality to 500Kbps — the issue persists.
Would appreciate any advice or confirmation if this is a known bug. Thanks!
