grab.log

DEVICE STUCK IN A BOOTLOOP AND UNABLE TO GRAB A LOG? 

Forcing adb authorization will help you. 

    1. Reboot to TWRP
    2. Mount _System
_    3. Execute the following commands via adb

`adb shell 'echo "persist.service.adb.enable=1" >> default.prop'

adb shell 'echo "persist.service.debuggable=1" >> default.prop'

adb shell 'echo "persist.sys.usb.config=mtp,adb" >> default.prop'

adb shell 'echo "persist.service.adb.enable=1" >> /system/build.prop'

adb shell 'echo "persist.service.debuggable=1" >> /system/build.prop'

adb shell 'echo "persist.sys.usb.config=mtp,adb" >> /system/build.prop'

adb push ~/.android/adbkey.pub /data/misc/adb/adb_keys

`* You should now be able to grab a log using adb!

*Source