My mobile phone is Sony l39h Z 1. I bought it on June 3rd, this year, and something happened recently. The situation is complicated,

First of all, let's talk about several reasons that may lead to the problem: ① The screen is flooded, so don't think that the three-proof machine is 100% ok; (2) it is unlikely that the system will go wrong, but it cannot be denied; Try to restore the factory settings; ③ The temperature of the capacitive screen is too high, preferably no more than 40 degrees, which leads to many reasons, such as playing with the film while charging; The working principle of capacitive screen is to draw small current from human body. The best solution is to use the exclusion method and try another screen. If there is still a problem, the screen is fine, and then find other reasons. By the way, where did you get the after-sales service from the Bank of Hong Kong? Some repair shops don't like to repair Sony's things. The first part is hard to get. Secondly, Sony's design is really precise and really difficult to repair. . Reference: A mobile phone repairer-himself.