need help CELL 1= 0 voltage. PARANORMAL DNA 250 mod

[modestep tech]

DNA paranormal 250 mod.

No voltage from Cell 1 So I cannot put in LI-ION battery mode.

works fine in either usb power or power supply mode.

there was nothing that provoked the occurance. it happened between puffs out of the blue.. 

thinking somehow the wiring to cell 1 is shorted??  

any input/help appreciated

thanks

[modestep tech]

after extensive research........ic balance charger chip. Its being sent in on RMA. *SOLVED