Charge & Use OTG at Same Time in Tablet Pc

my iball tablet has only one micro Usb port to charge & otg so I cant charge tablet when i use keyboard &mouse or any other device.

I make a solution for this problem

video link on youtube

Step 1: You Need :

1- Micro usb charger module 4056

2- soldering iron

3- wire

Step 2: Pick Up Wire From Tablet

Open tablet back cover and find tablet battery + & - point

solder this point with two wire.

now make a small hole for wire out.

close back cover.

Step 3: Solder Charger Board

solder charger board (v out) to wire picked from tablet battery point.

close back cover.

and test it .charger board indicator will blink.