What happened when you tried to flash teh 4.16.401.9 firmware?
You do it from fastboot not recovery
don't remember exactly but it fail and there was number 24 somewhere there. Trying to flash 3.28 atm and hurdles from the beginning any suggestions why it doesn't go through?
C:\Users\kielson\AppData\Local\Android\sdk\platform-tools>Fastboot flash zip fir
error: cannot load 'firmware.zip'