Nexus 6

ByPass the Setup wizard without a sim

1. Launch adb shell

2. echo "ro.setupwizard.mode=DISABLED" >> /system/build.prop

3. Exit shell and issue an adb reboot.

How to fix an Android that’s stuck and won’t boot past its logo

http://www.smartmobilephonesolutions.com/content/android-stuck-startup-boot-loop

gapps how to

• I'm having problems that I believe are Open GApps related. What can I do to fix it?

There are 2 things you can do that are almost always guaranteed to fix these types of problems. Please do not post a support request until you have tried these first.

• Make certain you are using the latest version of TWRP Recovery for your device.
  • Other Recovery types are not officially supported
  Reinstall your ROM and GApps as part of a 'Clean' install
  • This will remove any data corruption that might be causing your issue

A 'Clean' install consists of the following:

• Factory Reset (or manually wipe (format) Data partition - Internal Storage wipe is NOT necessary) Manually wipe (format) your System partition Flash your ROM Flash GApps package

  Wipe the Dalvik & cache Reboot

NOTE: YOU WILL LOSE ALL OF YOUR DATA AND APPLICATION SETTINGS using this method. Be sure to do a nandroid backup prior in case you want to restore later.

adb shell command to make Android package uninstall dialog appear

adb shell pm uninstall -k com.google.android.gms

References

https://github.com/opengapps/opengapps/wiki/FAQ