When a customer walks in with a dead phone after a screen swap and the display shows a dull grey tint instead of matching skin tones under different lighting, the AY A108 Screen Truetone Repair Module Board gives you a direct fix without opening up the logic board or hunting for a donor flex cable. iPhone 12 and 13 series handsets store true tone calibration data that links to the original screen serial number, so any aftermarket or swapped screen loses color-matching and auto-brightness accuracy unless that data gets rewritten. This module connects to the AY A108 programmer, reads the true tone parameters from the working display or from backed-up data, then writes it back to the new screen assembly so the display regains full color calibration. You get a bench-side solution that skips the traditional method of transplanting the original display's true tone chip through hot air rework, which carries real risk of pad lift on tightly packed iPhone board layouts. Technicians running high screen-repair volume use this board because it cuts turnaround time on true tone jobs from a full rework session down to a quick programmer cycle, letting you move to the next repair ticket faster. The module handles the iPhone 12 mini, 12, 12 Pro, 12 Pro Max, 13 mini, 13, 13 Pro, and 13 Pro Max, covering the full 12-13 series lineup that shops see coming through the door after screen glass cracks or LCD damage. Beyond true tone recovery, this board plays into the wider display repair workflow: after screen separation, digitizer replacement, or a failed self-repair attempt where auto-brightness stopped working, this module gets the display sensor data back in sync with the installed screen. Pair it with proper ESD precautions and a stable USB connection to the A108 box, since interrupted read or write cycles during programming can require a repeat pass. Shops that stock genuine screen parts still run into true tone loss on trade-in devices, refurbished units, or phones repaired elsewhere with mismatched components, and this module handles those cases the same way it handles a fresh screen job. Software marna through the A108 programmer replaces the need for a jumper lagana approach on the display flex, which matters on boards where the true tone IC sits close to other sensitive components. The board ships ready to connect, works within the AY ecosystem of true tone and Face ID repair tools, and fits into a technician's existing A108 box setup if you already run Face ID or battery health modules from the same brand. For a repair shop building out a dedicated screen repair station, this module rounds out the true tone repair capability alongside your existing soldering station and microscope setup, giving you a complete path from screen problem diagnosis to calibrated, working display. Buying this as part of your AY A108 accessory set means less downtime waiting on rework-based fixes and fewer callbacks from customers noticing color temperature or brightness issues after a screen replacement.