My model: TomTom GO 750 with micro-SDHC memory and it updates through TomTom HOME.
sdcard seleted as device to store the map.
HOME application Version 2.10.3.900 on Windows.
The above model which has worked just fine for several years recently (and most likely due to an upgrade [map or otherwise] done via the "HOME" application) started to go into a boot loop (with drum roll!) giving me the "command line screen" (black background with white lines.)
It is a rare occasion when I can get out of this boot loop and get the device running normally; I cannot isolate what exact actions are needed to get it to work, besides just holding power switch down for a few seconds; or power off, power on, etc.
As many users here know, this is a very frustrating issue.
I DO notice that on the command line boot screen, it either says: "startup mode: power down" or "startup mode: sleep" when the device is in the reboot loop (approx. 95% of the time.) So that is definitely not a good sign.
Remedies I have tried:
1) Delete mapsettings.cfg and let device recreate it automatically.
1a) My device and "HOME" application combination does NOT let me (re)create a Favorite or POI using the "HOME" application.
2) Device has no reset "hole" to use for hard reset; so tried the "hold power switch down for 20 seconds until drum roll", etc.
3) Tried using the clearflash tool
4) Used "reset preferences" from inside device (NOT from HOME since that does not seem possible.)
5) Reformatted (as FAT32) BOTH internal device AND sdcard using Windows (not quick format but full format.)
Before the full re-format, I even used "dd" in Linux first to zero out sdcard--but did not zero out device HDD--not sure it would make a difference anyway.
First backed up both using HOME and "manual"
Then removed everything from device using HOME application.
Then using Windows, reformatted both.
5a) After 5) above, connected device to computer, fired up HOME and it reinstalled everything. Not sure if I first had removed/renamed TomTom folder or not (probably not) so cannot be sure if it installed fresh from TomTom's website via internet or looked into TomTom folder locally and used that.
I am completely stuck and can't get this resolved.
I would be happy to reverse whatever update created this (I believe it was a recent map update, perhaps 2 or 3 months back?).
My computer skills are fairly adequate and I can use and have available both Linux and Windows. Not shy in needing to "hack" into device and "fix" anything needed using command line, etc. (Mentioning this just in case.)
Would greatly appreciate feedback on how to recover this device which is my only GPS system.
(Lastly, I am unable to use "recovery mode"--possibly because I do not understand how to get into this mode on y specific device.)
Thanks.
sdcard seleted as device to store the map.
HOME application Version 2.10.3.900 on Windows.
The above model which has worked just fine for several years recently (and most likely due to an upgrade [map or otherwise] done via the "HOME" application) started to go into a boot loop (with drum roll!) giving me the "command line screen" (black background with white lines.)
It is a rare occasion when I can get out of this boot loop and get the device running normally; I cannot isolate what exact actions are needed to get it to work, besides just holding power switch down for a few seconds; or power off, power on, etc.
As many users here know, this is a very frustrating issue.
I DO notice that on the command line boot screen, it either says: "startup mode: power down" or "startup mode: sleep" when the device is in the reboot loop (approx. 95% of the time.) So that is definitely not a good sign.
Remedies I have tried:
1) Delete mapsettings.cfg and let device recreate it automatically.
1a) My device and "HOME" application combination does NOT let me (re)create a Favorite or POI using the "HOME" application.
2) Device has no reset "hole" to use for hard reset; so tried the "hold power switch down for 20 seconds until drum roll", etc.
3) Tried using the clearflash tool
4) Used "reset preferences" from inside device (NOT from HOME since that does not seem possible.)
5) Reformatted (as FAT32) BOTH internal device AND sdcard using Windows (not quick format but full format.)
Before the full re-format, I even used "dd" in Linux first to zero out sdcard--but did not zero out device HDD--not sure it would make a difference anyway.
First backed up both using HOME and "manual"
Then removed everything from device using HOME application.
Then using Windows, reformatted both.
5a) After 5) above, connected device to computer, fired up HOME and it reinstalled everything. Not sure if I first had removed/renamed TomTom folder or not (probably not) so cannot be sure if it installed fresh from TomTom's website via internet or looked into TomTom folder locally and used that.
I am completely stuck and can't get this resolved.
I would be happy to reverse whatever update created this (I believe it was a recent map update, perhaps 2 or 3 months back?).
My computer skills are fairly adequate and I can use and have available both Linux and Windows. Not shy in needing to "hack" into device and "fix" anything needed using command line, etc. (Mentioning this just in case.)
Would greatly appreciate feedback on how to recover this device which is my only GPS system.
(Lastly, I am unable to use "recovery mode"--possibly because I do not understand how to get into this mode on y specific device.)
Thanks.
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