I keep getting Error: device '(null)' not found when trying to load 6.0 on my Nexus 6?

[jj14x]

Yeah, something is odd. T-Mo and AT&T have both released the updates (a while ago). While it is possible that it is still in queue, it is unlikely.

 

[TacoKingYo]

Re: I keep getting Error: device '(null)' not found when trying to load 6.0 on my Nexus 6

I think status code 2 means that it was locked after being unlocked. (0 is never unlocked, 3 is unlocked)
Where did you buy the phone from? Was it refurb/used? Since you got it, did you ever get (and successfully apply) any OTA?

Edit: let's take a step back. Are you still getting the "Error: device '(null)' not found" message when you try to ADB sideload? How are you trying to perform the sideload? As a refresher, here's how you do a sideload
http://forum.xda-developers.com/showpost.php?p=59378165&postcount=3
Before this, you should have enabled USB debugging in android settings, and enable USB debugging (if prompted) when you connect your phone to your computer

For Nexus 6, there's only code 2 and code 3, 2 is for locked and 3 is for unlocked

I had the battery expanding issue with my phone a while ago, and it was unlocked. I had gotten it through Verizon so I needed to relock the bootloader but I was freaking out cause it retained the "code 2" after fastboot OEM lock. I looked it up online, and all Nexus 6 phones come with code 2 out of the box. When I turned the phone in, they accepted, and my replacement had status code 2.

There isn't any hardware switch that will lead to a permanent unlock sign, unlike the newer nexii.

Posted via my smexy Nexus 6

 

[bayuws26]

Try to change your USB cable, I was get the same problem too, but then I change the USB cable with new USB cable. Sukses upgrade via adb sideload 100 % ....

 

[bplewis24]

Try to change your USB cable, I was get the same problem too, but then I change the USB cable with new USB cable. Sukses upgrade via adb sideload 100 % ....

You are the man! I couldn't find any suggestions for the issue I was having which was accurately described in this thread. I switched USB cables to one from my car and it worked!