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From The Saab Tech Wiki
/* DIY */
# Use a ballpoint pen to press down each of the ribbon cable connectors and improve the connection.
# Pass a hot soldering iron over the ribbon cable connector to improve the connection. This tends to be the most effective, while also being the most likely to cause permanent damage.
# Use a heat gun set at 500-700 Celsius and remelt the solder while shielding the ribbon cable and plastic.
