When a cell phone fails, hangs up, and refuses to work, our first impulse is to take it with us for Mobile Repair Doorstep . But before doing it, you can do several independent actions that will facilitate professional work. In This Article Search for documentation Self-diagnosis and cleaning Storage of personal data Update of the settings Deactivate passwords Search for documentation If it's not been one year since your smartphone was purchased, your device is likely under warranty. Of course, the service is only available if you provide proof of purchase. Please note that the guarantee only applies to damage caused by the manufacturer. If your phone has been damaged by contact with water, mechanical damage, or any other action on your part, contact Mobile Repair Doorstep for fast and best mobile repair. Self-diagnosis and cleaning Perform an initial inspection before requesting a repair. Even if that doesn't solve the problem, you will have more in...