Chosen Solution
When starting up it begins optimizing apps and never quite finishes. After repeating this several times over a few days, it now begins the same way but in a short time it blinks and then goes dark.
This could be a memory glitch . Holding a bad boot in the memory and booting off the same boot cycle. open the tablet and disconnect the battery then reconnect and reassemble and reboot . This video will help you disassemble the tablet the battery removal is not necessary just disconnect the battery and reconnect .Hope this helps
If you have Zedge, this is what is causing it. I had also done other updates and thought it was Android System WebView as it started right after that had updated. Then I read it’s Zedge and I’ve had that program for almost 2 years. I had restarted phone and was again stuck on “Optimizing”, but for me each time it has been a good 20 minutes. I uninstalled Zedge and it started right up, no Optimizing. Thanks for everyone who figured this out!
I disconnected the battery, then recharged completely. The nexus started back up like it should. However, the screen does not respond to touch. Yikes! I must have messed something up. Any advice?
I know this is a long time ago,but… Ensure that the ribbon cables you disconnected to replace the battery are fully and properly reinserted.
