Last time on Qingming Festival, because I only had one day off, I went to play at my friend’s place for a day. As a result, I just had a fever that day. I remembered to downgrade the system of my mobile phone, because the new system consumes power quickly, basically two times a day. Charge, I only bought it for more than 150 days, I went to the official website to find a tutorial on downgrading the system, and then went to Kuan.com to find a downgrade tutorial of the great god, and then I did not follow the official website. , As a result, the phone turned off and turned on the screen, and the screen went black. At that time, I thought there was nothing wrong, but after a long time of operation, the phone only vibrated once by pressing the power button + volume down button, but the screen did not turn on. … see full article: https://www.liangwazi.com/post/wdinzjsj.html
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