Tomtom 510 frozen, HW reset does not help

[kaishi]

It has been two weeks since last time I used my Tomtom 510. Powered it on, the screen does show sth, but it is frozen forever. Later on, I searched related info. in the internet and thought it is the HW reset problem. Use paper clip, reset Tomtom, it does turn off but I got the same problem after I turned it on.

Tried to connect it to PC through USB, it can talk to PC. I deleted and re-installed the map and application. disconnect it from PC and turn it on, the same problem happened.
The funny thing is when I deleted the map, and disconnect it from PC, it goes through the screen where it used to locked to and shows the no map (not surprising). But when I installed the map later on, it is frozen to the same screen again.

I called Tomtom today and was told to charge it for 2 hrs (exactly 2 hrs) and then reset for 5 s, and then press power button for another 5 s. I did it, again I got the same problem.

I noticed the info shown on screen when press power button for longer time, it shows boot voltage is 4.125v, is it usual?

Any thoughts or similar experience?

[peterroynorman]

I have a similar problem with my tom om one. I can not get passed the flash screen.iI will be watching your post with interest.

[thebinman]

Low battery voltage or corrupt/over full SD card are most common reasons for this.

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