Fix Nokia Lumia Mic problem using diagrams in which all related components are traced and marked. Troubleshoot the problem if yo want solve Nokia Lumia Mic problem. After disassemble your nokia lumia 900 check Motherboard if there is any carbon or rust due to water damage or wash motherboard with electronics cleaner and apply normal heat with heatgun to dry motherboard. Make sure your Nokia Lumia 900 Nokia Lumia Mic, . Here some diagrams are uploded to show jumpers, follow diagram instructions carefully to fix the issue.
These diagrams can be used for nokia lumia 900 only, do not try these diagrams on other mobiles. If your problem not solved you can contact us for further info.