Thread: How to convert 3790us to 3790 Sg/My

Can I convert Taiwan firmware to SGMY also?

It seems that the Chinese Firmware doesn't have the icon form keying the waypoint. Maybe I couldn't find it. In SG have this function.

CHN remove this function ... if use the translator in software downing page you will see the explanation.

Maybe you could write down the steps you made, then we can know where is the problem.
Converting to SG/MAL FW 2.50 seems not so easy anymore. 2.30 is still possible

Originally Posted by tom1807

Maybe you could write down the steps you made, then we can know where is the problem.
Converting to SG/MAL FW 2.50 seems not so easy anymore. 2.30 is still possible

All I know is 3790us can convert to
Sg/My 2.20
Sg/My 2.30
CHN 2.20

and no one can convert to
Sg/My 2.50
Taiwan 2.10

Don't say no one Maybe not now, but I bet someone will find a solution.
Remember, in the beginning there it was not possible to flash back to US Unit, until PouchX found a way.
Happy New Year my friends

Hi tom1807,
Happy new year !
You are right.
The problem will meet a solution someday., just wait for a right man stand at the right position in the right time.

Happy New Year!

Thx for info and clues.

@aekhong: my unit is 3790US HWID = 110
No success at all with changing to Sg/My 2.20 nor Sg/My 2.50
I was using RGN_Tool and turboccc instruction + some of my own trial/variations with HWID and SW versions.

According to PouchX's advice I've downgraded to 2.50 US (it was my one and only success ) but again i was unable to change from US to Sg/My.

Unfortunately I have to travel in next few days (Poland -Norway) by car, so i have no time (don't want to brick my Nuvi too) and i will hold up "digging" for now.

Anyway, it will be great test for my 3790

Maybe someone will find solution until I will try again

If you like to try again ::
- Rename folder Text., zVoice., Keyboards to other name
-H/R
-Flash
-if success --> rename folder back to original name
-H/R again

------------------------

How long did you buy your 3790 ?

Old hardware of 3790 can not go to newer version of Sg/My., Taiwan
So., maybe newer hardware of 3790 can not go to older version of Sg/My too.
----------------------

But....just try
and remember to always use US boot.bin so your 3790 will not brick.

I bought it two weeks ago.
Developer Info of my unit says: PCB Version 8
System Info:
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