Axon Root without Unlock? And OTA?

Hey,

I have two questions about the Axon7 and rooting in general.
First is, if there is a possibility to root the Axon7 without an unlocked bootloader. Just need the root for some Apps (e.g. adaway).
The second is: if there is a possibility to root the Axon, will OTA Updates work or how do I get updates?

Thanks for your help.
Gebo

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