Question about Garmin GPS 48 GPS Receiver

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GPS 48 MEMORY LOSE

WHEN I TURN ON MY GPS 48 I GET A MESSAGE : STORED DATA WAS LOST MEMORY BATTERY IS LOW SEARCHING THE SKY.
HOW DO I REPLACE THE MEMORY BATTERY.

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You can go to batteries plus or wherever and buy a new 3 volt battery for it. You will have to unsoder the old one and soder the new one back in. Original was a VL1220, I replaced with a Dantona Lith 1-2VLS
http://shop.industrialpartner.com/D/dantona/lith-1-2vls.htm
http://www.fedcobattery.com/b.cfm/all-vendor/lithium-coin/Rechargeable-Lithium-Coin-Cell-for-Printed-Circuit-Mount_VL1220-1VC.htm

Posted on Oct 09, 2008

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The Lithium back-up battery is very low.How can it be replaced ?


UNFORTINATELY the message was not complete verty what? low? try recharging it or replacing it before it does damage by leaking into thre circuit board

Jul 20, 2009 | Garmin GPS 12 GPS Receiver

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When I turn on my TomTom, it says GPS signal lost for about 3-4 minutes before it picks a signal up. This happens everytime no matter where I am. Then it works fine.


Does your GPS have a good view of the sky?
i.e. not mounted low on the dash of your car.

it really only needs to find 3 satellites to work but it might take a while to lock on if reception is low.

When you say every time you turn it on. I assume that you don't go days without turning it on. A GPS stores information about satellites and their orbits across the sky and keeps it for about 6 days. The download process of this information is fairly slow. If you run it most days the information gets updated while the gps is running so you tend not to notice.

Just some ideas to think about.


Jul 08, 2009 | Tomtom ONE GPS Receiver

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My GPS continues to search for satellite and can't seem to find where we are.


How to have a lost weekend Use GPS!

a few things to check

Good view of the sky
Well charged battery preferably on AC charger before using
Low battery power will affect connection.

Burned out SIIRF chip ( big money to have repaired!)

usually caused by plugging GPS into car DC power and then starting engine. Not recommended!


Jun 22, 2009 | Garmin nuvi 200W GPS Receiver

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Replacement of the memory battery of my Garmin 195


Piece of cake. Remove screws from back of device. Separate the housing and carefully lift up circuit card off of pins. There is a battery holder underneath. Simply remove wafer battery and replace with like model battery. Put back together and you're off.

Jun 13, 2009 | Garmin 185 Sounder GPS Receiver

1 Answer

Data lost


Sounds like the memory battery ran low. Did you get a "Memory battery low" warning message when you switched it on? If so then that confirms it, and I'm afraid your waypoints are lost.

As for the memory battery it will take on some charge if you just put in fresh AA batteries. How much charge depends on the age of the GPS, mine is over 10 years old and the memory cell is pretty much dead now.

Grmin may or may not replace the cell for you depeniding on the age of the device. If you want to do it yourself it's a very fidldy job requiring some expertise with a fine pointied solderign iron. The case is held together with solicone sealant aroung the joining edges - there are no plastic catches - one piece of the case has a sort of trough around the edge that the other piece/side slots into and the trough was fileld with silicone sealant and the two pieces sandwiched together. It's not a very strong glue though so it can be prised apart with a fine knife and patience.

Aug 10, 2008 | Garmin GPS 12 GPS Receiver

2 Answers

Casio BOSS SF-5300


Once the DATA ERROR DISPLAY appears,You will not be able to INPUT or EDIT DATA, though you will be able to recall Data after pressing CLEAR to clear the error message.**YOU WILL
WANT TO SAVE ALL YOUR DATA OR WRITE EVERYTHING DOWN AT THIS POINT, BECAUSE THE ONLY WAY TO GET
THIS DEVICE BACK TO NORMAL OPERATION IS TO PRES RESET IN THE BACK -IF YOU PRESS RESET YOU WILL LOSE ALL INFORMATION PERMANENTLY.


In order to return the memory to normal (allowing further input and editing of data), you must perform the RESET OPERATION to clear the memory of all data-Make sure you have backed up or taken a hardcopy of this information before Resetting or it will be gone and there is nothing you can do to get it back.Once you have RESET you can re-input the data you have written down.

WHAT CAUSES THE ERROR MESSAGE?Interruption of battery power.Severe electrostatic charge,impact,change in temperature
or humidity.Hardware Problem.

Recommendations:Replace batteries every 2 years, regardless of use.Use only CR2032 Lithium batteries.Replace all batteries-Never mix old ones with new ones!
Caution: All data stored is lost if you remove more than 1 battery at a time. The following Info is per the instruction manual-WHICH ALSO SAYS :Be sure you keep a separate copy of all important data that you store in the SF-5100/SF-5300.Hope this helps.

May 28, 2008 | Casio Boss Business Organizer

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Garmin 180


You need to replace the internal Battery with the Panasonic BR2032-1F2 battery. However, yes your waypoints will most likely get lost when you do this.

May 07, 2008 | Garmin GPSMAP 180 GPS Receiver

1 Answer

Garmin GPS 45


It is probably one of the following:
1)Old Software
In 1999 the GPS satellites were reset and the new almanac data had to be loaded into the GPS 45 for it to continue to work. It was not uncommon for that model to quicly kill a set of batteries when it is having difficulty acquiring, which would cause it to shut down in order to save the batteries for its internal memory.

I just did a quick search of the Garmin website and it appears they no longer support that model. If you go to their support page and send a request for a software update they can probably e mail it to you. The update is free but to down load it, you need a PC interface cable (RS232 serial port connector) Part Number: 010-10141-00 Suggested Retail Price: $ 38.09.

2)Bad antenna
To rule this one out, borrow an antenna from another Garmin 45 or Garmin 48, or plug the unit into an external antenna and see if the unit still shuts down. The drawback to this method is that you can buy a new GPS that is superior to the one you have for about the same price as an external antenna.

3)Bad batteries
If your batteries are low, the unit will automatically shut off to protect its internal memory. I tried a lot of different batteries in my 45 and I found that Eveready alkaline batteries worked best. Rechargeable nicad batteries don't work very well because they fool the battery meter. Newer models have a setting to specify that you are using rechargeable batteries.

Ultimately the best advice I can give you is buy a new GPS. For less than $150 you can buy a new model that is more accurate, more reliable, stores more waypoints, has a better display, is easier to use, and gives you more valuable information.

Please rate this information as helpful.

Jan 23, 2008 | Garmin GPS 48 GPS Receiver

2 Answers

Garmin 45


If you know your coordinates, enter them on the position screen.

Use the track pad to highlight the coordinates on the position screen. Press "enter".  Use the track pad to change the digits to match your current position.  Place the GPS where it has a clear view of the sky and wait.  If you have a power cord, plug it in as it may take as much as half an hour.  Do not move the GPS while it is trying to acquire.  The antenna should be vertical.

If the GPS still doesn't acquire, it may have lost the satellite almanac data, which has changed since that unit was manufactured.  I could not find a software update on Garmin's website for that model, however, it is possible to transfer the almanac data from another garmin.  Post a follow up message here and I can give you more instructions if needed. 

Oct 29, 2007 | Garmin GPS 48 GPS Receiver

3 Answers

Garmin 48 memory loss


I have fixed several Memory battery low for the Garmin 48 .

May 30, 2007 | Garmin GPS 48 GPS Receiver

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"Upload ...Not Present" message. Nothing else on the screen. I replaced the internal battery last spring used it all summer. Have just checked internal and external batteries and all are fresh 3v internal and new AA four batteries. Upon startup the screen says "Upload" "Not Present" and there is no menu. I have tried hitting Page and Menu, etc. nothing happens. I tried leaving it out and on for 3 hours to see if it would find itself and satellites. I tried connecting to the computer and uploading the internal program the port was not found. Tried this a number of times and a number of ways. I have tried leaving it on to search for 3 hours and have tried to connect to my computer to reinstall the software but that does not work. The internal battery was replaced with a new one last year. I have fresh batteries in the unit. What is the problem? How do I fix it? Thank you. I love this unit and would like to keep it going. I have fixed two others for friends who needed the internal battery fixed. They use it as a backup. I have tried the Auto Locate procedure about 3 times. I have also tried clearing by holding the PAGE + Power. Then tried autolocate. Message "Upload... Not Present" still remains. Also have tried clearing by holding the MARK + Power. Then tried autolocate. Message "Upload... Not Present" still remains. Now I am wondering if this message has to do with an interrupted connection with EasyGPS from last winter. I was uploading waypoints, and thought it had completed and may have turned off and disconnected the plug before an operation was completed in saving waypoints off the Garmin 48. I do not know this for a fact, but that was the last operation I recall doing last fall, before starting the GPS up again on the boat this spring. I have also tried to connect the unit to Easy GPS via the serial port, thinking perhaps it would complete whatever it is trying to do. I have tried uploading routes and downloading routes via EasyGPS send and recieve and it does not seem to work. I wonder now if the interface setting has been reset, by my pressing PAGE+power and Mark + Power earlier. I would not mind that if the menus came up properly, but that is not happening. Is there some other way to kick it out of this mode? I turn it on and there is the message "Upload...Not present" and none of the menu buttons work to get it into the normal startup screen mode..... I've tried Quit, Page, Enter, Goto, Mark, Power (off and on), and none of the get the computer out of this mode and back into the normal menus for startup. I've removed the antennae and checked all the contacts and that seems fine, and reinstalled. Is there some small reboot button inside that I can jumper? I have tried taking the internal battery out and letting it sit for three days and it still does the same thing. Any suggestions would be appreciated

Jul 08, 2010 | Garmin GPS 48 GPS Receiver

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