Is there a way to turn my device on while it's stuck in a boot loop due to a broken power key? I have this old LG Nexus 5 with a broken power key laying around and I want to access storage now. Problem is whenever I hold down the power button it goes into an infinite boot loop. Gets to various lengths of the android boot animation but always fails and starts over. 

I know for a fact that the phone has USB debugging enabled. 
Phone is not rooted.
I have tried using ADB, however adb devices doesn't list anything and connecting it via USB automatically starts the boot loop without me even holding down the power button. 

Is there anything I can do other than take it to some shop?

Thanks in advance
Got lucky and managed to turn it on for just long enough to get my data.