The control does not turn on for me with the 4.2v battery on the back, help!!

[Ivanlakersss2016]

Hello guys, I need your help, I have a matrix control motherboard, it turns out that I made the tutorial in this video https://www.youtube.com/watch?v=hOH7wWqwhJU&t=1315s
The rechargeable battery mod was working well for me for a few days, but now it doesn't turn on, but later I realized that if I use batteries, the remote turns on well, but from the area where the battery is connected it doesn't turn on, can you help me? ?thanks friends!

[RDC]

Check R4 on the controller board and see if it has gone open. If it has gone open, replace it with a 0.1ohm or just move the wires down to the AA spots instead.