Have you successfully used v2071rcsm? Share your device model and error logs in the comments below.
: It is the "last resort" for devices stuck in a boot loop or those that show no signs of life, as it operates at the hardware level before the Android OS even attempts to load. Carrier Conversion msmdownloadtoolv2071rcsm new
Manufacturers and developers use such tools to load and test various software versions on devices during the development process. Have you successfully used v2071rcsm