The phone started to freeze when I opened the camera or messengers, and it interfered with the work. My friends recommended this service, and I didn't regret it. The check was done for free, and a software glitch was detected. They suggested flashing and backing up the data so that nothing would be lost. The job took two hours, and after that the phone started working properly. The price was quite affordable. There is a guarantee, if something happens again, I will return to them.