Today we will share a case about repairing a MacBook Pro 13" 2018 (A1989) that won't turn on. In the first place, we used MacBook (BY-3200) Power Cable to observe the change of boot voltage and current. The voltage values related to the boot circuit on the motherboard were found to be normal after measuring. To determine whether the fault was caused by data problems, BY-T200 Data Assistant was used to read and write the data of T2 chip ROM. After rewriting the ROM data of T2 chip, the MacBook could turn on and enter the system. The not turning on fault has been cleared. Recommended Items: T2 Chip Data Assistant (BY-T200) For MacBook Repair - https://bit.ly/3qnQFmd Power Cable (BY-3200) For MacBook - https://bit.ly/3qnTK5L MacBook IC Replacement - https://bit.ly/2LqfVJV Straight Tweezer (Ceramic Head) - https://bit.ly/38HvpBY Find More Items on shop.rewa.tech Any questions and demands please feel free to contact us at sales@rewatechnology.com Subscribe us for more latest information. ----------------------------------------------------------------------------------------- Blog: https://blog.rewatechnology.com/ Facebook: https://www.facebook.com/rewatechnology/ Instagram: https://www.instagram.com/rewatechnology/ LinkedIn: https://www.linkedin.com/company/rewa-technology-co-limited-/ Twitter: https://twitter.com/rewatechnology/ -----------------------------------------------------------------------------------------