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Service Bulletin 21125: GIA 64 Wrong Resistor Issue

Per Service Bulletin 21125, the following GIA 64 products must be returned to Garmin for repair. The table below contains the current list of affected products and will be updated as necessary. See the Service Document Notification (attached below) for more details on returning the product to Garmin for modification.


Serial Numbers of GIA 64 Products Affected (last updated 21-JUL-2025):


4SK0126664SK0127084SK0127285RT0066755RT0066935RT0067205RT0067455RT0067655RT0068155RU005605
4SK0126674SK0127094SK0127305RT0066765RT0066955RT0067215RT0067475RT0067665RT0068195RU005606
4SK0126824SK0127104SK0127315RT0066775RT0066965RT0067225RT0067485RT0067685RT0068205RU005607
4SK0126834SK0127114SK0127325RT0066785RT0067005RT0067265RT0067495RT0067695RT0068225RU005608
4SK0126854SK0127144SK0127335RT0066795RT0067035RT0067275RT0067505RT0067705RT0068235RU005616
4SK0126894SK0127154SK0127355RT0066815RT0067045RT0067295RT0067525RT0067725RT0068285RU005622
4SK0126934SK0127174SK0127365RT0066835RT0067055RT0067305RT0067555RT0067775RT0068335RU005623
4SK0126964SK0127194SK0127375RT0066845RT0067085RT0067315RT0067565RT0067845RT0068345RU005624
4SK0126974SK0127204SK0127385RT0066855RT0067105RT0067355RT0067575RT0067885RT006838End
4SK0126984SK0127225RT0066705RT0066865RT0067125RT0067365RT0067595RT0067895RT006844
4SK0127024SK0127245RT0066715RT0066875RT0067145RT0067395RT0067615RT0067965RT006845
4SK0127044SK0127265RT0066725RT0066905RT0067165RT0067425RT0067635RT0068005RU005603
4SK0127064SK0127275RT0066735RT0066925RT0067195RT0067435RT0067645RT0068055RU005604


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