X5 and problem with MKIII 3 1/63 no more GPS

[JERMAX]

Hello,

As I live in Paris, I was first into a French forum and find a way to upgrade my actual version up to V27.

If I tried to upgrade is because I had some troubles with my screen that switch off and on frequently. The dealer BMW says that is it a problem of GPS Calculator and I have to replace it (around 2000 euros).

Unsteadily I preferred to make some "hand made" upgrade and see!!!

Now, after a while I succeed to have on the screen SOFTWARE UPDATE, ... but no Progress bar, after some minutes, I got System will reboot,..

Then I got a "blue" screen without any GPS function!!!!
Now, I wanted to have an old for Backup but can't find any old version.
I saw in that forum some links but the file is not here anymore.
I think a V24 could be good as a first backup!!

Is there anyone able to help me finding such version or send me some recommendations or advices?

Many thanks in advance