Question about Garmin nuvi 205 GPS Receiver
You need to recalibrate the touchscreen. Try this: Turn off the Nuvi. Place your finger on the upper left-hand corner of the screen and then push down on the power button to turn the unit on. Release the power button when the Garmin logo appears. Continue to press on the upper left-hand corner of the screen until you see the calibration screen.
Go through the entire procedure of pressing each dot as it appears on the screen.
Once completed the Nuvi will display Calibration Complete This will recalibrate your touchscreen to the LCD display.
If this doesn't resolves your problem. then your touchscreen may be defective.
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Posted on Feb 22, 2014
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Posted on Jan 02, 2017
The touch screen is a 4 wire resistive type made up of several layers. A thin plastic layer, a micro thin metal layer, microdots for insulators, another ultra thin metal layer, and a final plastic layer. All of these layers amount to the thickness of a sheet of paper. This whole stack is bonded to a thin sheet of glass and placed over the actual TFT display.
It's amazing that you can see through all these layers and only lose 20% of the light. What's not so amazing is that those thin metal layers are prone to damage. I've seen several with no apparent damage that didn't work, and several with visible scratches or cuts that worked fine.
I usually start by installing (or reinstalling) v7.2 firmware and then attempt to recalibrate the screen, sometimes that works. Next I would try re-seating the 4 conductor touch screen pigtail in it's ZIF socket nestled between the big white wires on the display assembly. The last resort is to buy a broken 2600 or 2700 series Garmin and salvage the touch screen. You could send it to Garmin for a flat $250, but that makes no sense at all.
If you get another screen (Garmin won't sell you one), Here's how to replace it:
Remove the six screw holding the case together.
Split the cases and pull the patch antenna out of it's slot.
Remove the four silver screws holding the display assembly into the front bezel.
Unhook the small ribbon cable that goes to the infrared receiver under the red lens.
Pull the display assembly out of the front bezel. It won't come all the way out because of cables.
Use a razor to cut the plastic tape holding the touch screen bracket to the TFT display.
Unlatch the 4 conductor ribbon from the ZIF connector nestled between the 2 big white wires.
Use a penknife to unbend the metal tabs keeping the touch screen from coming loose. I usually just do the two by the IR receiver.
When you reassemble, don't get frustrated with the gaskets, they're tricky but it can be done. Tom
Posted on Jan 24, 2009
SOURCE: Garmin 2720 lost sound
do not buy any this product garmin does not warranty or stand by its products, if have this fixed it will cost 300 but if you buy a new gps it will cost 150.00 can you understand this ?
Posted on May 23, 2009
First make sure the screen is clean of any dirt or oils that may deposit on your screen from your fingers. Use a stylist (a mini pencil like item that came with your GPS) or and other non metal semi pointed item and go through the screen alignment process. Hit the "X's" as you see them (it will move 4 or 5 times to ensure the screen is aligned.) After it is aligned it should give you other options. I have seen GPS's recycle trough the alignment process two or three times before cycling out. If you do this and you are still you are having issues, and you have tried resetting it, you may have a hardware issue.
Posted on Mar 07, 2011
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