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Have you ever had a cell phone in such bad condition that you already give it up for Completely Lost? Today we have this case with a Xiaomi Redmi 8A that is OFF, the logic board is totally damaged by excess heat and we do not have a complete spare part to replace it. The client needs to RECOVER their information so in the face of this almost IMPOSSIBLE situation to repair we made our great effort. We are going to learn a little about the review technique to make a diagnosis of this type of failure correctly by making the corresponding measurements and analysis, this time we combine the use of measurement with a multimeter and microsoldering and reballing techniques. 00:00 Failure Explanation 03:10 Cleaning the Donor Board 17:12 Removing Replacement Components 23:16 Preparing Recovery Components 30:10 Mounting Components 38:38 Testing the recovered board phase 1 41:35 Mounting the CPU 49:15 Testing the repaired equipment 56:25 Final Recommendation and Advice on the case Don't forget to leave your comments to improve future videos and other topics of interest to all of you. Register on the Official Page of our Online Academy: https://optimus.academy/register/ Information for Training at Optimus Academy: https://optimus.academy/cursos/ Questions and Contributions: https://optimus.academy/foro/ Follow us on our Social Networks: Instagram: / optimusrepair Facebook: / optimusrepair Tiktok: / optimusrepair Contact for Collaboration and Commercial Proposals (Not technical inquiries): [email protected]