try putting sd card back into a pc and check that the write protection is turned off. also if it has a write protection switch on the side of it it will need to be off. failing this. you may need to check what format the sd card was formatted in . it will need to be ntfs formatt not fat32. if it is fat32 ,save whats on it re format to ntfs then reload your files. try again.. cheers Phixxer.
jon battery is inside, may have flat charge, try recharge waiting more;
jon battery protection recharging circuit, may be broken or battery pack loose minimum voltage to be recharged, about 2,5 volts.
SAFETY recharge range of jon batt. is 2,8 to 4,15 volts.
Connect the unit up to a PC and try deleting some of the unused text-to- speech (TTS) voices. Keep only the ones that you need. Delete any unused photos or MP3's...and also any unused vehicle icons on the unit. When the unit is booting, it loads in all of the vehicle icons allowing you to change the selected vehicle, so this too uses up valuable memory.
1.Try to reset your gps device.. Here's How ...please watch this video ...
2.Use the Garmin web updater to update your gps device .. Please click on the link below: http://www8.garmin.com/products/webupdater/ 3.If the problem still occurs ,the signal issue might be caused by poor solder joints. It's caused by a defective part. 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
Few reasons this may occur, most you can do something about.
1) Make sure the battery is fully charged before commencing journey ( USB or mains charger) 2) Plug the GPS in after the engine is started to protect the delicate SIIRF chip.NEVER Start engine with GPS connected. 3) Ensure you have a clear uninterrupted view ofd the sky. Place the GPS closer to the windscreen if poss and away from Phone..stereo or other electronic devices
4) If your unit supports it get an external antenna to plug in ( magnetic base mouse antenna)
You will have to contact Garmin support and have them change the registration which is matched to an e-mail address and the unit serial number. Device registration on Garmin's site is a "security feature" for two reasons: 1: People can buy lifetime map upgrades for a particular peice of hardware, and 2: GPS units are very high-theft devices.
E-mail support with the details (proof) of your purchase and ask them to change or reset the ownership information for your unit's serial number.
Press and hold the antenna signal strength icon on the display to bring up Satellite reception information. This will show you what, if any, satellites are being tracked. It will also tell you if you're in DEMO mode, in which case real satellite signals won't be used for the position.
Additionally, you can check the hardware by using the built-in hardware self-test features by pressing and holding the battery icon. Examine the information presented on multiple pages by pressing 'next'. Look for the hardware TEST button and press it. Wait several seconds for results.
These two steps should at least tell you where the problem is. If you ARE getting Satellite signals but they aren't being used by the hardware, you may need to reset your unit. Also check for firmware updates by using the Garmin Update utility available on their web site.
Going to say it's rf interferance that makes things go crazy. If the gps unit works fine witrh the antennae in the down or closed position then leave it like this. If not you might have to try moving the unit around to different spots on your dash and hope that one of them will work. Oh as to the reason, the plastic is a little thicker on the back of the unit wqhere the antennae is and the antennaes power when it is up is able to radiate a little better since the top of the antennae is the part that gets the power.
Hope this helps