Mobile phone motherboard power supply positive and negative short circuit solution: 1, first, remove the motherboard battery, use a screwdriver to touch the battery into the positive and negative terminals 5S discharge once.
2, and then unplug the power cord, and then plug it in one by one, because it is easy to cause such problems due to negligence and poor contact.
3. If it doesn't work, you have to replace the battery. Mobile phone main board refers to a method of extracting gold and silver from fixing liquid wastewater through mobile phone main board gold plating, mobile phone board gold plating, water royalty gold plating, CPU gold plating, copper gold plating, nickel gold plating, aluminum gold plating, circuit board gold plating, memory bar gold plating, gold salt gold plating, gold jar mud gold plating, chlorination gold plating, circuit board gold plating and other technologies. The technology is suitable for mass production of integrated blocks, chips and integrated block gold extraction.
There is no positive and negative cell phone motherboard. If you short circuit the positive and negative terminals of the motherboard connected to the battery, the mobile phone battery may burn, and the motherboard power control chip may also be scrapped.