Question about Garmin GPS Devices

3 Answers

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

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  • varune Sep 26, 2008

    If Garmin fixes the antenna on the Nuvi 350 as they have offered do yo think that this problem would persist as I rely a lot on my GPS

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3 Answers

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  • Garmin Master
  • 2,124 Answers

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.

- Jim

Posted on Sep 23, 2008

  • 3 more comments 
  • SHARCNET-USA
    SHARCNET-USA Sep 26, 2008

    Have you tried using an external antenna? There is a known issue with the Nuvi antennas where a part has failed causing the antenna to only accept signals from the external antenna jack. I have verified this issue on several Nuvi's. Try inserting a piece of wire, a few feet long (one strand) with no shield into the jack and sit back and see if it finds the satellites. I am working on a fix for this problem.

    - Jim

  • SHARCNET-USA
    SHARCNET-USA Sep 26, 2008

    Garmin will replace the entire Nuvi with a refurbished unit, not just the antenna I hope your unit is still under warranty so the replacement will be free.



    Use of the Nuvi has no impact on how long it will last. Sounds like you just have a bad antenna. I've seen this happen before.



    - Jim

  • SHARCNET-USA
    SHARCNET-USA May 06, 2009

    Please see this link for more specific information about this problem. I will be more than glad to help you with this problem.

    http://www.sharc.net/gps_antenna_repair....

    - Jim
    SHARCNET-USA
    http://www.sharcnet-usa.com

  • SHARCNET-USA
    SHARCNET-USA Jun 18, 2009

    For this type of repair, the eBay fee should be just under $2.00 not $5.00. This problem is caused by a defective surface mount RF switch. We carry these parts in stock.



    - Jim

    SHARCNET-USA

  • SHARCNET-USA
    SHARCNET-USA Feb 17, 2010

    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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  • 7 Answers

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.

Posted on Mar 05, 2009

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Just to let anyone interested know, I did send my Nuvi to Westek Electronics for the $55 repair of the "no satellite" problem. I received the repaired Nuvi back in 3 days and it has been working perfectly ever since (about a one and a half months now). They provided great & fast service at reasonable price. If you are having this same problem I highly recommend you send it to them for repair. Thanks, 36rn

Posted on May 15, 2009

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My Nuvi 350 takes 15-20 minutes to acquire satellites. Is there a change in settings that I could make to speed this up? Richard


Having worked on quite a few of these, your flip-up antenna/GPS receiver may have a problem. There is a part that fails that affects reception and eventually it can lead to full loss of satellite signal.

Please see this link for more info:

http://www.sharc.net/gps_antenna_repair.htm

- Jim

Sep 24, 2009 | Garmin Nuvi 350 Car GPS Receiver

3 Answers

Nuvi 350 cannot locate satellites


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.

Jul 13, 2008 | Garmin Nuvi 350 Car GPS Receiver

7 Answers

Nuvi 350 satellite reception problem


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.

Good luck!
- Jim

Jul 02, 2008 | Garmin nuvi 350 GPS Receiver

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.

Jun 19, 2008 | Garmin Nuvi 360 Bilingual GPS Navigator...

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

Jun 03, 2008 | Garmin nuvi 200W GPS Receiver

6 Answers

Unable to acquire satellites


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External antenna - Garmin 25MCX low profile remote GPS antenna

I have been experiencing the same problem many have been having with the Nuvi 6xx and 3xx series giving an error message “Lost satellite reception”.

My problem started mid April 2008 and got progressively worse. I would use my GPS on weekends and it would work perfectly for the first 10 – 30 minutes and then would loose satellite reception, rendering it useless.

I bought my Nuvi 660 when it first came out in October 2006 for just under $700 and is now out of the 1 year warrantee.
I called Garmin Technical Support and we checked my Software version (4.40) and more importantly my GPS SW version (3.00). According to the tech I had on the phone, the GPS SW version was more important then the Software version. It was in fact already updated to 3.00, I did master reset, after master reset, but regardless, nothing helped.

I contemplated what I should do.
Return mine and get a refurbished unit from Garmin for $225 with only a 90 day warrantee?
Buy a new Nuvi 660 for around $300
Buy a new Nuvi 2xx series with fewer features for $200 to $275.
Buy a Megellian GPS?

I read through this forum and came across one person that was told by Garmin “that they are aware of an issue with some Nuvis involving the failure of a diode in the unit that senses whether or not an external antenna is connected.” Apparently this diode failure is caused from the high heat these units experience from being left in a hot car for long periods of time. This would explain why mine would work in the beginning and then die.

So my thinking was, if the diode “thinks” there is an external antenna attached when it isn’t, what would happen if I “did” connect an external antenna?

Garmin recommends the Garmin GA 25MCX low profile remote GPS antenna for the Nuvi 660 and costs $31.49 (not sure about additional costs for tax and shipping)

So I purchased the NEW antenna from a seller on eBay for $25.90 total and IT WORK FLAWLESSLY.

Just to make sure it really was the new external antenna that was working and not the unit coming back to life, I started my 3 hour journey with the external antenna NOT connected. As usual it lost satellite reception in about 15 minutes. I plugged in the GA 25MCX and it immediately connected to the satellites and never lost them.

I repeated the same process coming home and once again, I connecting the external antenna after the unit reported loosing satellite reception, and it worked perfectly.

Conclusion: if your unit is experiencing loosing satellite reception, and is under warrantee, return it ASAP. If it’s out of warrantee, get an external antenna. There are other manufactures of external antennas and all should work as long as it has an MCX connector.

Side Note: This external antenna also worked perfectly on a friend’s Nuvi 350 with the same problem.

I wanted to share this with everyone because I’ve been racking my brain for months over this. I hope this helps.

May 04, 2008 | GPS Devices

2 Answers

Garmin nuvi 350


Have you downloaded the latest firmware for the unit? If not, download the Web Updater from Garmin and download the latest version. This may help. Also, make sure the antenna is fully extended while using the unit.

Feb 12, 2008 | Garmin nuvi 350 GPS Receiver

7 Answers

Having problems acquiring satellites


I experienced the same problem about acquiring satellite signal even when it's a clear sunny day. After 30 mintues, it was still searching! The unit appeared to have "stuck" in this acquiring mode. The following worked for me: 1) open the GPS antenna 2) press the bottom left screen while holding the power button to turn the unit on 3) enter maintenace mode 4) select diagnostics 5) clear error report, do NOT clear any user data 6) restart unit the usual way My GPS 350 was able to acquire satellite signal in less than 1 minute after the above steps were taken.

Aug 01, 2007 | Garmin nuvi 350 GPS Receiver

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