Calibration fails after reflash extruder replacement

HI, I had to flash the emmc device and reload firmware. After doing so I am unable to perform a Z Calib. The system tries to drive nozzle into bed and makes loud noise in the process.
This is also a new extruder that may not have been properly built or setup. It arrived clogged and I had to dis-assemble it to clear the clog. anyway as alway please advise. this device is approaching 30 days since purchase

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Thank you so much for buying from Sovol, and I apologize for all the inconvenience.
Did you already send an email to info@sovol3d.com? If not, please send the above situation with videos and pictures and your order number, and we will check with the engineers asap.

I was able to fix issue by also flashing the firmware. But I am still having major issues with this device. One week nothing will stick to the work bed, another week I’m experiencing x-axis shifting, then the extruder starts leaking liquid filament. Did anyone bother to test this design before releasing to the masses?