- Make sure to power off the device: 
It is very important to power off the device before attempting to fix any damage. - Purchase a replacement part: 
Depending on the severity of the damage, you might want to purchase a new screen, LCD, or digitizer. - Take your device apart carefully: 
Using the appropriate tools, carefully take apart the device so you can access and replace the damaged parts. - Clear away any debris or dust: 
Using a cotton swab or soft cloth, gently clean the excess dirt and dust that might be present. - Re-assemble your device: 
Once the new part has been installed, carefully re-assemble the device and turn it on. 
