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my device had gone into a boot loop condition where It can't
and some other resources might be useful,
please help immediately.. and thanks in advance,
It appears you have bricked your device if you would have different device I would have provided better instructions however snapdragon chipsets are hard to flash however give this a try Download cynogen os from here-
https://forum.xda-developers.com/zuk-z1/development/rom-cyanogen-os-12-1-yog4pas3oh-t3248820/page1
And install it through your TWRP. In case if you had a backup through twrp you can restore it hope it helps
Without a sd card its not possible so arrange it from somewhere or try QFIL flash tool and stock rom as you have a pc.
Follow this guide: http://www.gsmhelpful.com/2017/06/how-to-flash-lenovo-zuk-z1-z1221-with-qfil-flash-tool.html?m=1
