Smart Car (HV Workshop error) what to fix?

Smart Car (HV Workshop error) what to fix?
im on process Charging manually,
includes balancing all cell which is Voltage depleted -
charging 3 separate module....
each module got 33 cell

prior to charging only got 5V total .....
now i already good Voltage and still keep charging coz only low Ampherage charger.... bits its getting

then the BMS got error P18051C error
which needed to reset/reprogram ....
once the BMS reset ...and HV re-charge
i will update more video how i put it back together and re install then drive to normal operation again....

thanks for watching

impt.... pls don't do it if your not familiar with High Voltage its dangerous....
note: im not responsible any damage ....on your EV.... coz again its HV which is dangerous.... im just sharing how i did it ....
thanks for watching...

impt.... i don't recommen doing it if your not incline with HIGH VOLTAGE.....