Very often i see posts "my Nexus 9 is garbage, its slow/random reboots/unresponsive etc." but theres such posts too "im lucky mine works perfect". Whats the difference? I don't believe thats wide spread hardware defect because theres no rule. Different Production Dates don't make difference, it doesn't matter if tablet was bought 2014 or 2015, or colour. My idea is that something is going corrupt app, data or system. Or bad application. Mine was sudennly saw behaving strangely slow, self reboots without errors 4-5 times a day, high pitch unpleasant noises from speakers when watching Youtube. I tell you how i fixed it.
Trough "Settings - About Tablet - Send feedback about this device" i looked into various system logs. There was lots of errors. I downloaded Device Assistant from Google. After it detected that my device rebooted itself couple of times it recommended trying out "Safe Mode" on Nexus 9 for 3-5 days to see if this app or hardware problem. I tried it for 5 days, guess what no more reboots all problems gone, my Nexus 9 self resets, high noises when watching YouTube, unresponsiveness, lag! It's gone its over week without problems
Safe mode disable all non-google third party apps from running, background apps from running too. It's like safe mode on Windows, only necessary apps are to use YouTube, Gmail, Chrome. If problems gone (lag, resetting) then do factory reset without backup, do not restore any apps! install app manually from Play Store not from backup or trough setup wizard. Try to detect what app causes problems trough selective instalation/system or event logs. It helped mine Nexus 9
How to turn on "Safe Made"
Press and hold power button
pres and hold "power off" option with your finger till pop up comes "Reboot to Safe Mode"
then choose OK
Trough "Settings - About Tablet - Send feedback about this device" i looked into various system logs. There was lots of errors. I downloaded Device Assistant from Google. After it detected that my device rebooted itself couple of times it recommended trying out "Safe Mode" on Nexus 9 for 3-5 days to see if this app or hardware problem. I tried it for 5 days, guess what no more reboots all problems gone, my Nexus 9 self resets, high noises when watching YouTube, unresponsiveness, lag! It's gone its over week without problems
Safe mode disable all non-google third party apps from running, background apps from running too. It's like safe mode on Windows, only necessary apps are to use YouTube, Gmail, Chrome. If problems gone (lag, resetting) then do factory reset without backup, do not restore any apps! install app manually from Play Store not from backup or trough setup wizard. Try to detect what app causes problems trough selective instalation/system or event logs. It helped mine Nexus 9
How to turn on "Safe Made"
Press and hold power button
pres and hold "power off" option with your finger till pop up comes "Reboot to Safe Mode"
then choose OK
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