NOTICE: There will be a service delay between 4/9/2024 to 4/16/2024 AND 5/10/2024 to 5/22/2024, all repairs will be accepted during this time but no repairs will be completed during this time. No Website purchases will be sent out during this time. We are very sorry if this causes inconveniences.

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Garmin GPSMAP 478 Repair Service

Starting at: $34.95

Express Repair Service Instructions

This is for the Garmin GPSMAP 478 unit, if you know the repairs that you need then choose the Base Repair Charge option and then choose the repair options that you would like. If you are not sure or don't know which repairs are needed then you can select the Request For Quote option.

The return shipping options will be given near the end of the checkout process.  If you need to ask a question either use our Contact Us page or give us a call at (612) 326-4364 within business hours.  If we find additional problems we will contact you.  You will be required to send your unit to us for the repair/evaluation, an email will be sent to you after you place your order, in the email will be the instructions.

In most cases the unit will repaired or evaluated within three days.  With the RUSH option every effort will be made to send the Palm back the same day as receiving it, these are top-priority upon receipt.

Request For Quote - Use this option if you really do not know what is needed, the repair is not in the list and/or the unit does not start up, if you choose this option do not choose any other repairs options below. This charge covers evaluating your unit to determine what is needed or what might be needed. After the evaluation you will be contacted with a quote for the repair, you can then either accept or reject the quote, if you reject the quote then we will ship the unit back and no further cost is required.

Description of some of the features and options

      • There are two options here 1) Base Repair Charge - This is the charge that covers the base part of the repair, evaluating the unit, taking it a part and other activities to make the repairs below. 2) Request For Quote - Use this option if you really do not know what is needed, the repair is not in the list and/or the unit does not start up, if you choose this option do not choose any other repairs options below. This charge covers evaluating your unit to determine what is needed or what might be needed. After the evaluation you will be contacted with a quote for the repair, you can then either accept or reject the quote, if you reject the quote then we will ship the unit back and no further cost is required.
      • You are able to turn the unit on and off but either there is no display(white screen), the display is washed out in some or all places, or you can see a crack anywhere on the screen. For an example of a bad LCD click HERE.
      • The internal battery backup is used to save previous satellite data in volatile memory each time the unit is turned off. This helps decrease the TTFF, Time to first fix. The time it takes, after power-on, to accurately compute your position and time using at least 4 satellites. If you are in the same location, the satellites have not moved much and your internal backup battery is good then the lock will take place in about 1 second. If the backup battery is bad then the lock is likely to take more than a minute or never depending on your current signal strength and condition of the backup battery. If your internal backup battery has not been changed it should be replaced at the same time as another repair, even if it appears to be working as the typical battery life is typically three or four years.
      • There are aftermarket battery packs out in the market but many of them either do not work or use substandard cells, we use new Samsung cells and because we reuse the original battery circuit within the pack it is guaranteed to work correctly.
      • This is a very common problem, during the automated manufacturing process Garmin did not use enough solder on this part and there is a lot of potential stress applied to this part. If the unit no longer communicates with your computer or XM radio when plugged in to the USB then the jack will be the problem
      • Every effort will be made to send your GPS unit back out the same day as receiving it, these are top-priority upon receipt.

Add to Cart:

  • Model: Garmin GPSMAP 478
  • Shipping Weight: 1lbs
  • 88 Units in Stock
  • Manufactured by: Garmin

Please Choose:

Base Service Charge

Base Charge ( +$34.95 )


GPS Repairs











This product was added to our catalog on Friday 11 September, 2020.

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