Docomo Fujitsu Arrows NX F-01F root???

I know, it's kinda old model from Docomo but still there's no any info out there for rooting and unlocking. Mr. fi01 has made a bunch of tools for other models of Docomo phones but not for this one. So, I wonder if it's possible at all. Ideally, I wanted to get the root and unlock the bootloader to install my custom firmware (e.g., Cyanogen). Tried some roots by fi01, but none of them worked. And I cannot get any answer from him.

I could contribute some money for it (within reasonable limits, ofc.).

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