Yes, @nkk71 might have an idea. Im just sharing what I know- If you cannot get into fastboot also, you really have a serious problem. Your only option (not 100% sure) is an RUU based on 4.19.401.11, which doesn't currently exist. If there is another solution, I don't know. But I think you will have to wait for an RUU based on your version.
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