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Do you ever have a phone that won't turn on but you need to recover data or information that is very important to you? Today we have a Xiaomi Redmi Note 9 that is badly tapped but our fans want to recover some information, we'll see if it's possible to do so. Let's learn a little about the review technique to correctly diagnose this type of failure by making the corresponding measurements and analysis, this time we combine the use of multimeter measurement and microsoldering and reballing techniques. 00:00 Fault Explanation 01:28 Condition Inspection 03:12 Extraction and Cleaning of Components and Board 14:16 CPU and Memory Extraction 16:10 CPU and Memory Reballing 20:38 CPU and Memory Assembly 25:35 CPU Verification 29:15 Testing of repaired equipment 35:25 Final Recommendation and Advice on the case Don't forget to leave your comments to improve in 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]