Question about Tomtom GO 910

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Back light of the LCD display is not working

I own a Tomtom 910 navigation system for less than  half  an year and 2 weeks ago just like that the display is not showing any light.

What can I do?


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Re: back light of the LCD display is not working

Get a RMA by TomTom by callinging them directly (see on TomToms webpage) I've solved by shipping my unit to Neaderland with UPS at no cost, they replaced the motherboard (not the display, this  just remained the same!) I've received the repaired 910 after 5 days and I've spent no one cent! And I've got also the battery, AC power supply and software replacement! Other problems of the software are still present: the unit won't cange colors by night-light changes (only one time after a reset...), tryes to connect to phantom computers, after a power on it get off and then on if connected on the car support,... The 910 is a crazy device, not stable at all. I think I'll change it with the new model Go930T Ciao (sorry for my bat english)

Posted on Jun 08, 2008

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Re: back light of the LCD display is not working

If it doesn't turn on after a hard reset and disconnecting the battery you may have a screen issue. Even though it's only the backlight you most like will need to replace the entire screen. There are third party TomTom Repair Guides websites that show you how to replace / resolder components.

Posted on May 25, 2009

Re: back light of the LCD display is not working

My tom tom GO 910 light button is on but back light ( LCD ) is not on. can anyone tell me what and where is broblem.

pomy bhai

Posted on Jul 25, 2008

Re: back light of the LCD display is not working

How STUPID can people get with answers.
JSPCExpress, didn't you read this???
Comment by keepsound, posted on May 19, 2008Backlight is not working, reset button don't resolve the problem
So why did you persist on saying to Press the Rest Button, when he has already tried it ?
I have the same problem. It's something more serious than just a reset button. I have opened up my TomTom 910, and can't find the damn problem. Most likely need a new screen, and they're not cheap.

Posted on Jun 08, 2008

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Re: back light of the LCD display is not working




Posted on Feb 20, 2008

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1 Answer

My 910 won't pick up a GPS signal - any suggestions please?

Backup the Tomtom to your computer. !!!!!!!!
Format the Tomtom hard disk
Logon to Tomtom home and carry out an update
When it has completely finished updating copy the map directory back onto the root of your Tomtom hard disk.

This action forces the Tomtom home site to completely update the program on your Tomtom to the latest applicable application.
This may involve updating the the bootloader as well as the Navcore software.
The maps will go straight back on ok as they should already have been initialised for that device.

Most new Navcores now incorporate the Quickfix which enables the sattelite signal to lock on quicker.
Regular visits to the Tomtom home website will update the quickfix data which really needs to be done weekly as the data expires.

Pressing the reset button also renders the old Quickfix data useless.

If the above does not work then I suggest that you have a hardware problem which would require a professional repair.

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TomTom GO 910 won't turn on.

Two possibilities:
- if someone has used the wrong charger, and connected it to a 12V supply, the mainboard may be damaged. In that case, you need a replacement.
- the battery may be discharged. Even if the green light is on, it doesn't necessarily charge up. Try pushing it hard onto the mount for a few minutes, then see if it will turn on.

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It is very small - a pinhole. Use a paperclip to press the button which is sunk inside the small hole.

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Others have found this site helpful with the 910

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My Tomtom 910 is having charging issues.

Hi Evan,

The rubber bungs often come out but it doesnt usually effect the charging although the rubber bung is there to help reduce vibration when used with a mount in a car. I have had many 910's here in the past with the bungs missing but never had any problem with them latching into the mount. I would think your problem is either some other plastic part is worn or broken. However , if you feel that the problem is the bung then I would go with your instinct but you might have to find something else to fit in the hole as parts are not readly available for TomToms unless you buy a whole unit thats faulty to use as parts / spares. Im'e sure something could be made to fit possibly part of an eraser or similar rubber part. You might also be able to use a small rubber cable grommet or similar.
As far as I know , it isnt possible to get a virus on to the TomTom as such but it is possible to get corrupted data on the hard drive ( or SD card with other models ) especially if you download things such as voices etc. I have had TomToms here were owner has downloaded comic voices and the files have caused very strange things to happen with the TomTom. I even had one where a voice file was making it look like the screen was damaged , so , your'e correct in thinking that way. In your case though , I doubt if the dowloaded voices have effected the charging , its more likely the poorly fitting mount thats casuing your problems.
If you manage to get the green light on ( this only shows power is going to the TomTom , it does NOT confirm charging ) then leave it for a few hourse before attempting to turn the TomTom on as that will ensure a resonable amount of charge especially if you battery is very flat.

Hope this helps . ( please rate the above reply if you think its helpful in any way )

Good Luck

Sep 20, 2008 | Tomtom GO 910

2 Answers


stevi at the back of your tom tom where your windscreen dock goes there is a small rubber bumper if you look to the right and down you will see the reset button it is a small hole above the dock socket. sandy

Feb 21, 2008 | Tomtom GO 910

1 Answer

Will not power up

Had same problem with my GO910 unit, after it was about 6 months old. Contacted TomTom and sent unit back. They said that they are aware of the problem. They sent me back a new GO 720 with 2008 maps as they said they could not fix the problem in the 910. and they were not importing anymore 910 into Australia.

Dec 26, 2007 | Tomtom GO 910

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