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Re: tom tom 300
If the unit is still under warranty, send it back to Tomtom. Even if the unit is no longer under warranty, complain to Tomtom. There is a problem with the CLA (cigarette lighter adapter). It can cause internal damages to your Tomtom. What happens is that there are three wires in the CLA along with a voltage stepdown circuit board. The wire are +, -, and a signal wire. If the signal wire get disconnect the voltage could spike up to 12vdc. The unit is designed for only 5vdc.
If the unit is out of warranty then try the following website for repairs. They can fix the two chips which usually blows.
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If you turn on your tom tom gps device and the only thing that comes on is the tom tom display screen, then you need to reset it first. To reset it, what you have to do is to hold down the power on/off button for about 15 seconds and that will reset your tom tom, if it does the same, then you have to reinstall the tom tom application on it.
To reinstall its software, you connect it to a computer then it will detect the device, then the latest software downloads will come up, download it on to your gps, now when you plug it into your car and turn it on, it will get passed the tom tom display screen and start up normally.
Hope this information helped.
First you need to check if the battery is okay, try it on another tom tom gps receiver, if it is working and the screen wont turn on, then it means there is a hardware problem, probably the flexi ribbon that is connected to the screen is either loose or bad, this will require you to disassemble the tom tom and check for the flexi ribbon that connects to the screen, then you resit it or change the ribbon, that should do the job.
You can also try to reset the tom tom first before disassembling it. By pressing and holding the power on/off button for about 15 seconds, if that does not do the job, then you can go ahead and disassemble the tom tom.
Hope this solution helped
"My tom tom wonts switch on. I have reset it and still it comes on with a boom boom noise and shows the 2 hands on the screen. It also shows the loading bar at the bottom, but then it just freezes and nothing happens. can anyone help please ASAP"
Sound as though your Map data card is corrupt. Remove the SD card and check it with your computer using a card reader. Backup the SD card onto your computer. You can run either chkdsk or go to the drive letter under 'My Computer' right click and select properties, then tools, then check now. You can also try starting the Tomtom with the SD card out of the unit. It should show a picture of the Tomtom with a 'X'. You can also try copying the data on the SD card to another SD card.