You must apply. Apply for replacement. It is best to return the goods, but it is unlikely. Because the replacement is probably not a new machine, the probability of problems with Xiaomi is relatively high, and many machines should be returned to the factory. If it is used for maintenance, we will replace the new machine for you. But you have a big problem, even if you switch to an official machine, as long as there is no problem, it is ok. However, judging from the quality of Xiaomi's workmanship, it is less likely that there will be no problem in changing it.