Tomtom 910 resetting

hegedusa · Occasional Visitor Joined: Mar 27, 2004 Posts: 55

I've seen other posts mention the 910 resetting / rebooting problem, in relation to a dodgy mount or connection to the mount. I'm not sure this is what's happening. My 910 keeps resetting even when the vehicle is stationary.

I've noticed that during a "fit" of resetting, the status display doesn't show the unit as charging.

Is it possible that the problem is a voltage problem where the unit thinks that power has been removed?

The whole thing could be solved by removing (or at least making it an option) that ridiculous feature whereby the 910 switches off when external power is removed.

I've also got a feeling that the resetting problem occurs more when the battery is discharged a bit. It got so bad yesterday that it would stay "on" for about 20 seconds at a time, then reset.

lbendlin · Posted: Sun May 28, 2006 6:31 pm Post subject:

are you running any other processes or tools at startup? what does the "free memory" line say?
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hegedusa · Occasional Visitor Joined: Mar 27, 2004 Posts: 55

pepperm · Occasional Visitor Joined: May 13, 2006 Posts: 48

I think you are right, it is resetting but as a result of an interruption in the power connection. If you just remove the cigarette end of the the power unit, it resets too. Mind you, not always.

Same thing happens when removing the 910 from the desk charger too.

Daft function though if it is supposed to reset when the power connection changes.

hegedusa · Occasional Visitor Joined: Mar 27, 2004 Posts: 55

lbendlin · Posted: Sun May 28, 2006 10:18 pm Post subject:

Rather get a replacement device.
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DennisN · Posted: Tue May 30, 2006 8:22 am Post subject:

I too had this off/on problem. Found a solution in another thread. There are three rubber blobs in the back. Remove the small triangular one and the connection beds in properly - I never had it happen again.

pepperm · Occasional Visitor Joined: May 13, 2006 Posts: 48

I had the cradle apart last night and noticed that the solder connections to the power connection socket looked very dry jointed. So I re-soldered them and, now my unit doesn't reset when I remove or replace the power plug. I also partially removed and replaced the 910 onto it's connectors several times and have not seen a reset yet.

Touch wood, maybe I have fixed the problem......

Mark

DennisN · Posted: Tue May 30, 2006 9:46 am Post subject:

When you get to my age, my eyesight, my shaky hands, you'll think twice about taking something apart rather than back to the shop!!

pepperm · Occasional Visitor Joined: May 13, 2006 Posts: 48

Well I have just done a 2.5 hour drive and tried waggling everything all the way and didn't get one reset. On the same journey twice last week I got a couple of resets every time.

I have to take my glasses of now to do the soldering too so don't be afraid. I'm not that young either :D

Andy_P · Posted: Tue May 30, 2006 1:59 pm Post subject:

DennisN · Posted: Tue May 30, 2006 3:08 pm Post subject:

Hmm. I wonder if there's a lot of this dry solder about. Could it be responsible for the invisible red characters on the speed limit function? (No I don't exceed speed limits, it's just dead annoying to drive southbound M5 J22 to J29 at 68 mph with it flashing away because it thinks the motorway is 60mph). Or maybe it dried up the (very, very) inaccurate free camera data. Maybe it also prevented the eastbound exit from M5 Junction 24 getting onto the map?
Anyway, after getting exasperated with my third 910 in two weeks, I took it back and got an exchange back to the 700. No dry joints there and the "old" maps are just as good.
And if anybody from pgpsw is looking, can you please demote me from Standard rank back to Beginner - don't want to have anybody thinking I know what I'm talking about!!

CeeJay · Posted: Wed May 31, 2006 12:58 pm Post subject:

Well done pepperm.
Sounds like you've sorted it.
I can't believe that dry joints were the problem in this day and age.
I used to work for a major electronics company and our 'production line' soldering was scrutinised and tested to the nth degree by our QA department. (Sometimes even X-rayed).
Poor show Tom Tom.
Unfortunately, too late for me, mine went back for a refund.

CeeJay.

lydiachris · Regular Visitor Joined: Mar 09, 2005 Posts: 193

Andy_P · Posted: Mon Jun 05, 2006 2:18 am Post subject:

If they are the same as the screws in the old range, they are star-shaped "Torx" bits. You can buy these quite cheaply in sets of "security screw bits" but the set doesn't usually go small enough. Take the mount to a good tool shop and they should be able to sell you the individual bits to go in a hex drive handle.

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