My Quest had the same problem, I took it apart to see what I could see,
6 black screws on the back. What i found is that if I unplugged the
battery and plugged it back in it would power on one time but not
again. So I just left my battery unplugged and it works great from the
car cradle all of the time. The clock resets but when it links to
the satellites it gets the correct time again. Hope this helps you.
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I have seen replacement batteries for the Quest GPS units on Ebay. Search for "Quest Battery" or "Quest GPS Battery". You may need to narrow your search but that will point you in the right direction. Another source is Batteryship.com. I have bought several batteries from them and have found their service outstanding.
This sounds like an old battery that has deteriorated to the point where the external power won't even turn the unit on. I have a fairly detailed description on FixYa of how to replace the Quest battery. Search for something like Quest Battery. It does involve opening the unit up. If you are not comfortable with the inner workings of electronic equipment, you will need to return it to Garmin.
I too have a Garmin Quest and yesterday felt like throwing it against the wall because of the above problem. I found the solution eventually. When you download the maps from the Garmin Maps page, where you select the maps download, make sure that the checkbox to "Include route calculation data" is ticked before downloading your maps. Also make sure that the total memory required for the number of maps selected does not exceed the available memory on your Quest. If you try to fit more information into your Quest than it can receive then you are bound to have some problems. The Quests seems to have different memory specifications. According to the USA spec the memory is only 128mb, the Garmin site says 115mb and the box that my Quest came in says that it has 243mb.
The Quest charges on about 5 volts you have to plug the cigarette adapter into a 12 volt souce, the adapter then converts it to 5 volts. If you splice 12 volts directly into the mount the quest will not work because you burn up the circuits or the battery.
"If your Quest locks up....on rare occasions, your Quest may freeze or lock up. In this case, reset the Quest by pressing the unit's Power key and the IN key at the same time. This will turn off your Quest. The unit will operate normally when you turn it on again."
Hello, I currently own a Garmin quest myself, and some time ago I had some strange problems myself, I am a electronics technician, and I do have a work around for you. I will explain the problems and a cure for you to try, none of the work arounds depend on any parts to be removed.
1. NO RECEIVING SATELLITE TELEMETRY. I beleieve this could be due to a number of reasons, but more so at sometime corrupted telemetry was the problem to fix this,
a turn GPS on when booted (initialised)
b. depress menu
select Time Setup
when in Time Setup depress MENU
Select SET DATE
Depress OK button
Depress OK button again on the numberic keypad that appears on the screen (DONE)
what this seems to do is resets the internal date/time clock and the unit starts to work again.
the Second workaround is this but takes hours to perform.
Simply turn the Guest on and allow the battery to fully discharge, usually this works to TOTALLY flush the Memory again, but on my unit I have to setup all the maps again, this is easy to perform, but just takes time. I hope this helps you.