NLBA1 is analyzing device, its not designed to balance the cells. One need Lab PowerSupply to do it. Lagging cells should be individually charged to same level like leading cell. 

@djibattworkshop  ok

Having in view cells voltages are over 4v, you could use another trick - discharge leading cell to same level like lagging using resistor or small bulb for flashlight. 

@djibattworkshop okay i will try this 

I maybe incorrect ! Normally imbalance in a group of cells is caused by a higher or lower resistance on a particular cell.Possible to balance temporarily but the problem will occur again.Hence you need to match all the cells for permanent repair.....

Posted by: @rokz65

Normally imbalance in a group of cells is caused by a higher or lower resistance

There are three kinds of unbalance basing on its nature. 

- SoC unbalance, also known as static unbalance, where cells have different State of Charge and so different cells voltages. It could be rectified by balancing manually or using balance charger. 

- Resistance unbalance, where cells have different internal resistances which cause voltage unbalance during charging or discharging. It could not be rectified by balancing. In case of big resistance difference faulty cells to be replaced. 

- Qmax or Capacity unbalance, where cells have different chemical capacity which cause the cell with less capacity to be charged or discharged faster then other cells causing voltage difference at charge or discharge, also in Static condition. It could not be rectified by balancing. In case of big capacity difference faulty cells to be replaced. 

Sometimes it is difficult to detect which of these types causes voltage difference. So additional check should be done like cells resistance check or qualification cycle. 

You only mentioned one of these unbalances while there are others. In practice used batteries could have all these mentioned factors mixed  in different proportion.