Lenovo 12k E7 mobile might have a motherboard issue. The screen is intact. I bought it from AliExpress for 130 SAR. The motherboard is faulty. I ordered power and volume buttons for 4 SAR. The last offered price is 65 SAR. If you want it for less, 60 SAR. It won't format, the reason is the motherboard issue. Repair at Al Khobar streets, they said it costs 400 SAR. The mobile has been broken for two and a half years, only for parts.