How to pair a Bluetooth keyboard/mouse device without a functioning touchscreen

Is this possible?

The screen and digitizer are both gone. I'm able to successfully get to the homescreen via HDMI/MHL but from there I'm stuck since I can't open anything.

Please help!

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Touchscreen works w/one N6 logic board but not the other - bad logic board or?

Hope someone has an easy fix-

I have a known good touchscreen and digitizer for the Nexus 6. now I have a logic board / motherboard that works with it fine, and another logic board that when mounted, gets no touchscreen functionality at all but everything else seemingly works ok. Neither board has been rooted or flashed or unlocked.

Now the board with a problem, was removed from a phone and the owner swears the touchscreen was working before.

So, is the board with the issue clearly bad i.e. something happened to damage the touchscreen functionality after it was removed from the phone it was working in, or is it something that let's say would be cured by a reflashing of firmware (factory reset, clearing cache, etc does not fix the issue), which technically the bootloader is locked and I can't do anyway... ?

Just trying to see if there's something I'm missing before calling the board faulty. Thanks.

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bootloop and dead touchscreen issue!

I had cm 12.1 with the elemental x kernel installed and everything worked perfectly for a few weeks. I left it on one night off the charger and when I tried to use it the next day, the touchscreen does nothing. I tried to reset it and it just sat at the google screen with the lock indefinitely. I booted twrp and still no touchscreen. I used the nrt kit to flash stock and unroot using the bootloop option and it installed everything fine. It boots into android now, but still no touchscreen! Is there a way to figure this out without opening it up? I really don't want to open it up, but I guess I will if I have to, i'm just hoping that I don't have to....

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