Hi Jake Lo i am new here
i install Sierra on my E7440
with you guide it was very good experience.
but after install it worked fine a week but now i am facing some problems
1. Frequent rebooting
2. sound problem sometime speaker works and headphone work but they stop working in the middle of work.
3. Bluetooth stop working when i was checking my bluetooth headphone it worked 1 or 2 hour but don't know bluetooth is not showing in preferences
Debug attachment is attached.
debug_21972.zip