I have a lot of dumb questions, I hope they are not too dumb to get an answer
I have a TT One (I guess its a v4, it says 4N00.012 on the bottom) and DeviceVersionHW=ONE (v4) on /ttgo.bif
It still have the original 256 Mb SD card and the last map update was about 5 or 6 years ago.
I'm starting to read all the stuff here in order to do the upgrade but 1st I'd like to know if it's possible to do a true backup.
I've red about copy all the files with windows explorer but I don't trust it much.Is doing an image with Win32 Disk Imager saffer than just copying all the files ? I do fear to lose some hidden or system marked files, I never know what's win 10 doing. So a low(er) level copy looks to be safer. Is this correct ?
On the other hand, is the SD card all the storage on this device ? There's no boot flash inside ? I noticed that there is a flash erasing tool on the TT site but I'm not sure if it applies to this model ? And if it does, does it have code there or it's only a non-volatile memory area for some configuration?
In other words, if I just remove the 256 Md card and got a brand new 2 Gb SD (4 Gb would require a newer boot loader, right?) (I assume that TT Home will restore his backup to the new card) can I do everything wrong that's possible to do and then, if it stop booting, can I just insert the original SD card and get it working as it was before ?
If it's a boot-loader issue and if it is loaded to some flash then a true and final brick is possible ?
And, at last, a map question. If I'm unable to find a hash for the map I want (Iberia) would another map like South Europe be acceptable for this device ? That's the 2nd reason that I want to put a 2Gb SD in, but can the 32 Mb RAM cope with a so larger map ?
Thanks in advance.
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Last edited by Ocsav; 23rd August 2016 at 22:19.
Your ONE-New Edition (V4) has no intern memory. So all manipulations are on a SD-Memory-Card. Make a bootloader-update from your 5.3029 to 5.5128 about your old 256 MB-card (copy the right BL-file "system" in the root of the card and start your TomTom, install complete after a view seconds (wait)). Now you can use a bigger SDHC-SD-card like 4 or 8 GB to install new NC and big maps (and also your old SD-card, if you want). Your old 256 MB-SD-Card is now your "safety backup"
Last edited by Alfred_ML; 24th August 2016 at 06:38.
Please make no unfounded full-quotings. Don't be a parrot! Or do you repeat every answer of your conversation partner in real life? Please use the button "Reply" for a direct answer. He was made for it.
The smallest SD card I found was a SDHC 4Gb so I had to do the boot loader upgrade. No problem here.
However migrating the data I had on the old card was not as easy as I expected.
I was expecting that TThome would just restore the backup I did yesterday, but no. On the 1st run (with the empty 4 Gb card) it upgraded the navcore but even after that it was not able to restore the backup. So I had to copy back the files I have saved using the windows explorer.
It took a few reboots but now it looks to be working exactly as it was before. So, now I can start working on the map upgrade task.
Thanks for your help.
Forget TTHome backups. Now do another full Windows backup of your card before starting to play any more!
Please do not post "thanks" but use the "reputation" star(*) bottom/left or "like" bottom/left buttonsS i m p l e s
PS If you find any dead links on MY posts please pm me & I'll try to fix/reload
Ok, I will.
I outsmarted myself, I thought that the restore function would be part of the boot loader. I must remember that I know nothing about GPS devices. This could make sense with networked devices where a tftp client is an easy solution, but this is USB... my bad... :-(