About replacement new system

It's the m18 R2, There were 11 repairs during the year. When I received this machine, the screen was tilted. I applied for two screen replacements in the UK. I remember the second time, the engineer disassembling the computer with a large screwdriver. And then the charger had a loud electric current sound. Replaced. Then there was a problem with the motherboard and it was replaced twice in China. When I replaced the motherboard for the first time, the engineer told me that the connection problem of the screen cable caused the motherboard to burn out. Is this due to improper operation by the engineer? The screen appeared the tilt again. Replaced twice. Then in January this year, the motherboard and fan were replaced. The last time, the speaker cable jack broke due to the engineer's improper operation.

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When I applied for repair again, they told me that I needed to send it to the repair center for repair. It would take about two weeks, and they promised to eliminate all the problems. As a result, it was returned to me a month later. When I received the system, there was a line on the top of the screen that was brighter than other areas, but the appearance was intact. In the next two months, there were large fluctuations in frame rate and stuck restarts. I tried to reset the system twice but failed to solve it. Now when I turn on the computer, the power button will light up when I press it for the first time, but it will not start up afterwards. I have to press it a second time to start it up.

Can I conclude that this series is flawed? I then tried to apply for a new system, but the new system was m18 but the keyboard was downgraded and no longer CherryMX. I now tried to communicate with them, wanting to change to the latest system, even if it was a downgraded version, and explained my doubts about the m series. Now the latest reply is that it can only be repaired and sent to the depot (my warranty supports onsite service), and it will take another month. The attitude is very tough, even though I sorted out and explained these issues.