They work clearly, I'll tell you👍🏻)) I had a mobile on duty with a dead battery and a charging connector . I went in and handed over the mabil , they said they would dial it when everything was done . I will say it bluntly, I did not expect it to be so fast))I handed it in on Monday and picked it up on Wednesday. Phone (xiaomi redmi 4 pro) . Well, that's not all, on the same day I handed over another phone (samsung a50) to replace the charging connector. The craftsmen tried and did it in an hour.