How long does it take for the mobile phone to return to the factory for maintenance?

Generally speaking, the time required for returning a mobile phone to the factory for maintenance varies with the model and the faults encountered. Generally, there are two situations: one is that you don't have to wait for the standby machine, and the maintenance time needs at least one week; Second, you need to wait for the standby machine, and the shortest maintenance time may take one month. Million car purchase subsidy