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Traces are made of copper or silver, and can be damaged by physical damage and power surges, or contamination with metallic dust and normal wear.<br><br>You should make sure that you have the proper tools and materials before you attempt to repair a board. This will ensure that the repair is as smooth as it can be. For instance you should have a soldering gun, sandpaper and a desoldering tool available. It is also essential to shield yourself from electrostatic discharge, which can cause damage to the circuit board. You can use antistatic wristbands or even make sure your workstation is grounded to prevent ESD.<br><br>In the end, it is essential to clean the circuit board before starting the repair process. This will help prevent further damage and will reduce the chance of mistakes. It is possible to clean a board using the swab which is soaked in Isopropyl (IPA) alcohol or a flux removal pen. Additionally, you must ensure that the soldering area is clean and free of any contaminants.<br><br>In the end, you must remove the tape from the area that has been repaired. This will avoid further damage to the pads or tracks. You can also carefully trim the excess tape with the help of a craft knife. When trimming, it is important to ensure that you don't cut any of the tracks or pads on the circuit board.<br><br>Copies<br><br>A key fob is a small device that provides access to and control of the functions of a vehicle without the physical key. Key fobs are subject to a lot abuse and they are not impervious to destruction. There are many parts that can malfunction or break. The majority of these components are repairable. The battery terminal contacts and buttons are the most frequently encountered failure point however, there are many other things that could go wrong.<br><br>Car key fobs communicate with the vehicle by radio frequency. 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