We use an Original BMS Board + High-Capacity Cell.Why does this matter?While most factories use cost-effective, third-party solutions like OEM TI or cloned 2-in-1 IC chips—especially in competitive overseas markets—we choose the original board for:✅ Superior Durability – Less heat, no swelling, longer cycle life✅ Stable Power Management – Matches the original iPhone’s charging logic✅ Widely Trusted in Chinese market – Preferred by skilled technicians for reliabilityA note on transparency:• For iPhone 11/12/13/14/15 models, we also use OEM TI solutions, as genuine BMS flex are costly for these 5 high-demand models.• Even with original boards, diagnostic functions won’t run—these boards aren’t registered in Apple’s database.