title: nexus 5x stuck on Google screen after replacing one of the system shared libraries
body: <p>My nexus 5x works fine until I changed some share library in system partition:</p>
  <pre><code>adb push out/target/product/bullhead/system/lib/somename.so /system/lib/somename.so
  adb reboot
  </code></pre>
  <p>then my nexus 5x is stuck on Google screen on boot. But when I cleared data, my nexus 5x works fine again:</p>
  <pre><code>fastboot -w &amp;&amp; fastboot reboot
  </code></pre>
  <p>I also find that system.img can't be flashed alone, I must wipe data using <strong>fastboot -w</strong> when I flash the system.img, or it will stuck on Google screen on boot. Anyone know how to solve this?</p>