Question about Garmin Nuvi 360 Bilingual GPS Navigator and Personal Travel Assistant GPS Receiver

1 Answer

Get it repaired at Westek

I also had a sudden onset of the satellite reception problem, intermittent, but persistent enough to be a headache. I discussed this with the guy at Westek and decided to opt for the repair. It has now been about a month, and I have been having only what I would call a "normal" number of dropouts (similar to what I had before the persistent problems began). I would recommend Westek, as the guy knows what he's talking about and doing. He even shared with me what he thought might be causing this with so many units: poor quality control on Garmin's part during build (soldering process). Not to bad-mouth Garmin at all, because I do love my Nuvi, but still.

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  • WheresDaBeef May 11, 2010

    Sent mine to SHARCNET-USA... cheaper in cost too. They found a defective part. They sent the bad part back to me along with my repaired GPS. The bad part was so small it you would need a magnifying glass to see it. They did a firmware upgrade for me for free, cleaned my screen and case. My power switch was bad too. They fixed that too for just a couple bucks. The power switch feels really solid now, better than it did from the factory. They have a ton of positive feedback on their site, so it looks like they have a lot of happy customers and I'm one of them. - Jeff

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  • Garmin Master
  • 2,130 Answers

This problem is not caused by poor solder joints. It's caused by a defective part. We sent a "marked" defective unit to the repair shop mentioned above and upon its return, disamantled the GPS receiver assembly and made the following evaluation:

1. The shop did NOT replace the defective component causing the initial problem in the 1st place. The defective part was STILL in the circuit.

2. The shop placed a wire jumper between the internal antenna and the external antenna port. This type of modification places a +2.5VDC bias on the internal antenna and essentially shorts the internal antenna to the external antenna (when connected), giving unpredictable results. It also affects the circuit impedance and signal strength. This is not the correct way to resolve this issue.

3. The defective part needs to be replaced with a higher rated part. This type of repair returns the unit to full functionality and allows the unit to properly switch between the internal and external antenna as it was intended to do by design

- Jim
SHARCNET-USA

Posted on Feb 02, 2010

  • SHARCNET-USA
    SHARCNET-USA Feb 03, 2010

    I will aso add, as the part deteriorates, it becomes resistive and can eventually short out and shunt the incoming RF signal to ground......EVEN with the jumper procedure performed by the shop mentioned above.



    - Jim

    SHARCNET-USA

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6ya6ya
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Posted on Jan 02, 2017

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Signal Fade And Loss ~ Important, especially during winter!

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No satellite reception on garmin nuvi 350, garmin offer to repair i believe it may be the antenna as i did all the reboots do think if repaired the problem will persist


There is a possiblility that the antenna is defective. Sometimes a factory reboot helps or re-burn of the firmware. One way to confirm an antenna problem is to go into the tools menu and select "about". If the screen says "GPS S/W = 0.0 (should be a real number like 2.9 or 3.0) then this indicates that your antenna is not communicating with the main board.

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Having taken several Nuvi's apart, the flip up antenna has a 1/4" wide flat flex cable that runs from the flip up antenna assembly to the main board.

The flex cable carries the voltages required to power the antenna assembly and bring the signals back to the main board.

There is actually a printed circuit board in the flip up antenna assembly. It's possible that this is the receiver itself.

The flex cable runs through the round center hinge of the antenna assembly on the right (looking at the Nuvi from the rear) back to the main board.

There is also a magnet involved with the flip up antenna assembly that tells the main board whether the antenna is up or down. If the antenna is down, the Nuvi will NOT look for satellites.

A couple things can happen here that can make your Nuvi not find satellites: Assuming you have tried a hard & soft reset:

1. The antenna flex ribbon cable has become damaged.
2. The antenna flex ribbon cable has become detached from either end (it's held in with just a snap down flap).
3. The magetic switch isn't operating correctly and the main board thinks the antenna is down.
4. The front-end receiver has failed.

If your good at taking things apart (and the Nuvi is a little tricky to take apart), you might be able to verify some of the possibilities I mentioned above.

You might also try looking for a Nuvi for parts on eBay. Maybe you can find one that has a bad LCD screen and salvage the antenna from it.

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3 Answers

Satellite reception


I own & operate the electronics repair company, Westek Electronics in Nashville, TN. We repair & refurbish GPS units among other things. We have repaired many nuvi 350/360 units with this issue.

This issue is typically due to a hardware malfunction and cannot be remedied by software upgrades, resetting, etc.

Do this test:

  1. Strip a ¼” of a wire twist-tie end (the kind found on bread wrappers) bare exposing the fine wire core.
  2. Power up your nuvi 350/360 and confirm that you are not receiving any signal.
  3. While still powered on, insert the bare-wire end of the twist-tie into the center female external antenna jack located on the side of the antenna. If done correctly the external antenna jack will firmly hold the twist-tie in place. You cannot damage the unit by doing this.
  4. If you now have satellite reception then proceed to step 5. If you still do not have any reception then I have no further advice other than to try all of the update/reset procedures. If all else fails return to Garmin for repair.
  5. Once you have established that you have signal using the twist-tie, remove the twist-tie and confirm signal loss.

Your choices to remedy this issue is as follows:

  1. Purchase & use an external antenna.
  2. Return the GPS to Garmin for repair ($175 if its out-of-warranty). Or,
  3. Send your Garmin Nuvi 350/360 to us for repair. We charge $55 (return shipping included) to repair this malfunction. We can also accommodate this repair transaction via eBay in order to provide you with additional reassurance (an addition $5 is added to cover eBay fees, etc. when using this option). Our eBay ID is westek_electronics, feel free to review our feedback ratings. Our repairs are covered by a 30-day warranty. If for some reason we are unable to successfully complete the repair we will return the unit to you and charge only $10 for return shipping. To initiate your repair contact us at westek12@hotmail.com.

Hope this helps.

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3 Answers

Lost satellite reception


This problem is not caused by poor solder joints. It's caused by a defective part. We sent a "marked" defective unit to the repair shop mentioned above and upon its return, disamantled the GPS receiver assembly and made the following evaluation:

1. The shop did NOT replace the defective component causing the initial problem in the 1st place. The defective part was STILL in the circuit.

2. The shop placed a wire jumper between the internal antenna and the external antenna port. This type of modification places a +2.5VDC bias on the internal antenna and essentially shorts the internal antenna to the external antenna (when connected), giving unpredictable results. It also affects the circuit impedance and signal strength. This is not the correct way to resolve this issue.

3. The defective part needs to be replaced with a higher rated part. This type of repair returns the unit to full functionality and allows the unit to properly switch between the internal and external antenna as it was intended to do by design

- Jim
SHARCNET-USA
Comments: I will aso add, as the part deteriorates, it becomes resistive and can eventually short out and shunt the incoming RF signal to ground......EVEN with the jumper procedure performed by the shop mentioned above.

- Jim
SHARCNET-USA

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