My mobile phone is broken, so I have to fix it.

If the mobile phone has no cpu, it is not only a problem of slow speed, but also impossible to run. If he removes the cpu, it will definitely destroy the surrounding solder joints, which connect various circuits. Removing the solder joint is equivalent to breaking the circuit, and the mobile phone will not be powered on. Did you see what he took apart? He is too brave. You should ask him face to face.

There should be nothing wrong with your mobile phone, that is, the battery contact is loose, which often leads to power failure and shutdown, and then he deliberately said that the chip is faulty because the chip burned, and it can't be turned on because of power failure. Just like the netizen who repaired the mobile phone said, the cost of electric shock by welding alone is less, which makes people lose money.