[Q] Nexus 7 (2013) wont boot on its own after upgrade to 5.0.2 topic

I have a Nexus 7 (2013). It has been unlocked/rooted for some time now. The new upgrade to 5.0.2 would not work automatically so I had to do it manually using NRT (2.0.2).

Everything seemed to work ok until I tried to re-root it....

Now it will not boot up fully, I am just left with the "swirling balls"....

However, I can connect to it and boot it from NRT using Fastboot Boot > Browser/Other and modified_boot_razor_5.0.2_LRX22G.img. This all works ok, but when I disconnect it and reboot it normally it is back to the "swirling balls".

I seem to think there is something amiss with the bootloader...???

I would really appreciate some ideas.... I would much prefer not to have to start from scratch... I am sure there is some one on here who can help.... Please...


Alan