Sometimes the system simply failed to boot due to a bad update or corrupted cache. Try this before using PC tools.
Use 7-Zip to extract the .tgz file until you see a folder containing an images folder. how to unbrick poco m5s
This guide will walk you through fixing each scenario. Sometimes the system simply failed to boot due
If the device is completely unresponsive and not entering Fastboot, it is likely in a hard brick state. For MediaTek devices like the POCO M5s, you can use the or MTK Client . Using MTK Client : how to unbrick poco m5s