“AM” usually refers to Active Matrix OLED (another term for high-end Samsung displays). If your Galaxy S25 Ultra screen has lines, dead pixels, or touch issues, you need a precise repair. My Cell Repair in Santa Rosa, California handles S25 Ultra screen AM replacements with care. We don’t just swap glass—we replace the entire display assembly to ensure perfect touch sensitivity and color. Because we’re a local shop, you can ask questions, see our work, and usually get repaired the same day. No shipping, no waiting weeks. Just your S25 Ultra looking brilliant again.