reboot and reset user data loop(optimizing app fail)

[himitsudesu]

I was tried everything that customer support said. But problem is not gone.
Then I decide to install custom rom from XDA.
https://forum.xda-developers.com/android-auto/android-head-units/rom-gtx-joying-stock-rom-2018-01-29-t3742482

Finally boot loop was gone, current 1 year, but original firmware is more useful for me.
Anyway, If you can take a risk on yourself , this is one of solution.