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

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I tried to upgrade to SGMY v2.50 but unsuccesful. I've tried using the boot.bin from both US v2.50 and v3.60. After load the modified firmware, the device just keep rebooting. I have to reload the mod SG v.2.30 in order to bring him back to life.

Originally Posted by andynyc2003

I tried to upgrade to SGMY v2.50 but unsuccesful. I've tried using the boot.bin from both US v2.50 and v3.60. After load the modified firmware, the device just keep rebooting. I have to reload the mod SG v.2.30 in order to bring him back to life.

Yes, nobody clarify how to do that till now.
Although PouchX said no problem to go to Sg/My2.50 but he didn't say how to.

I tried to ask him 2 times, maybe now is your turn !

I've success upgrade my Nuvi 3790T US version to SGMY v.2.30, but everytime I go to tools> settings> display, the unit immediately turn off. What have I missing?

Originally Posted by agus6

I've success upgrade my Nuvi 3790T US version to SGMY v.2.30, but everytime I go to tools> settings> display, the unit immediately turn off. What have I missing?

Did you do hard reset after flashing. ?

Originally Posted by aekhong

Did you do hard reset after flashing. ?

Hard reset solved the problem, thanks.

Is it possible to add TTS voice Indonesia (that I've got from Nuvi 1350 Indonesia version) to Nuvi 3790? Tried to add both vpm and sum file but it didn't show up in voice menu.
Any news to go to SGMY 2.50?

Tried with 4.10US + 2.50CHS by editing hwid = 1101, keep rebooting.

PCB version = 8

Originally Posted by agus6

Hard reset solved the problem, thanks.

Is it possible to add TTS voice Indonesia (that I've got from Nuvi 1350 Indonesia version) to Nuvi 3790? Tried to add both vpm and sum file but it didn't show up in voice menu.
Any news to go to SGMY 2.50?

Maybe., but you need to edit in firmware not just added TTS voice file into voice directory.

hello aekhong,
Is me again. Today, I tried to upgrade my 3790t (initial is US version) SG/MY v2.30 to SG/MY v2.50 but failed. It stop after "Garmin" logo.

1) I make a mistake without H/R before flash with rgn
2) I forget to disable all of Text., Keyboards ., Voices ., before flashing
3) I'm using previous US boot.bin (HWID1101 ) that I used to convert US to SG/MY v2.30 (will this caused an issue too ?)

Then I flash with cure.rgn that you provide during I convert US to SG/MY. After flash, it can continue after "Garmin" logo and shown "load maps" , after "load maps" immediate it turn to another error screen below and only allow to exit and turn off device itself.

---GIR Version Mismatch---

GIR Checksums:
0x587acf0
0xe79e5f0

System Expected Checksums:
0x70a2510

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