Bootloader version numbers is a complex "nest of snakes".
The version numbers mvl gave appear to be for the Gox40 models not the x50's.
That explains why your bootloader is a higher number than the one mvl quoted for v9.120. Maybe he can explain further, but all I can say is that for my two devices in front of me:
Go 940 LIVE
v9.058.568435.1
Bootloader: 5.5120
And my Go950
v9.058.568435.1
Bootloader: 5.5259
When my 950 was on v9.053.520930.1 like yours, my Bootloader version was
Boot 5.5259
----------------------
So you have choices....
1. You can stay as you are
2. You can try installing v9.058
As I said in my post above
I would guess that "most" owners of Go x40 and x50 models have stayed on v9.058, as that was the last one offered to them by Home, and was an official release for all of those models. However it does still have some unresolved bugs such as slow Traffic acquisition for SOME people.
TT KNOW it was an official release, so I do not know why it has never been added to the software versions list you linked to, but I should point out that there are MANY OTHER versions missing from that list, so you shouldn't take it as the whole truth.
Maybe, they have decided the software had too many bugs and have quietly tried to pretend it never happened, but as I said, thousands of people (including me) have been using it for a year or more with few problems .
3. Or you can try v9.120
Again, as I said above v9,120 is a bit of a mystery.. The TomTom website used to say that it was only intended for the XL2 model but makes no mention of it now; and obviously the file name of the one we have here shows it
was meant for the Go750.
However, whether it was for ALL Go750's or maybe just for some custom models issued by one retailer or supplier.
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