How to check repair mobile short circuit board

Mobile printed circuit broad

An electrical network that has a closed loop giving a return path for the current Printed Circuit broad is made up with Fiber.

Circuit has prints and a  wires in copper. If copper prints is broken, It may be repair with a Jumper wire If Circuit is Burned or damage, no way to recover it.

Short circuit Checking method

Set multi-meter on CONTINUITY

Scenior 1: Connect Black probe to Circuit's +VE Print.  and Red probe to Circuit's -VE print shows some reading.

Scenior2: Connect Black probe to Circuit's -VE print and Red probe to Circuit's +VE print shows no reading.

Note: IF reading shows in BOTH scenarios it means circuit has Shortage.