Bricked my nüvi 1490...

**kunix** · 9th February 2014, 03:16 PM

lolypop000, I predict that ldr.bin won't be loaded from SD card, coz fw_all.bin doesn't start.

**lolypop000** · 9th February 2014, 03:25 PM

He bricked nuvi with wrong ldr.
I add in pack ldr.bin from nuvi 14xx in both folder 0827 and 0972, maybe he can repair nuvi in the same way that he bricked it.

**kunix** · 9th February 2014, 03:29 PM

maybe it will work, let's see...

**smokefree** · 9th February 2014, 04:46 PM

No luck yet. Here's what I did:

1. Dragged and dropped the 277 KB 082701000620.rgn file onto Updater.exe.
2. Selected the "USB Device" radio button.
3. Brought the GPS unit into pre-boot mode.
4. The moment the GPS unit was recognized by Updater.exe, pressed "OK".
5. Updater tells me the current software version is newer than the update version. Chose "Yes" to replace the current version.
6. Updater updates.
7. Updater tells me the update was successful.
8. GPS unit still flashes the message "SYSTEM SOFTWARE MISSING".

c58k

.

.

What I did not mention yet but what may be of importance, is that the unit does not first look at software on the microSD. The moment I switch on the unit, immediately it briefly shows the message "SYSTEM SOFTWARE MISSING".

**smokefree** · 9th February 2014, 04:54 PM

Originally Posted by lolypop000

I have idea

Try with this pack:

Spoiler:

Extract it on SD and add SD in nuvi and turn it on.
If this work, you will have again 14xx boot.bin

Unsuccessful.

With the microSD in the unit, immediately when switching it on, it briefly shows "SYSTEM SOFTWARE MISSING" and shuts down.
I notice in the downloaded pack the presence of an (empty) update.log file in both the 0827 folder as well as the 0972 folder. Doesn't the presence of such file prevent the program from being executed?

Edit:
Tried the same trick without the presence of both update.log files. Same result. I don't think the unit is reading anything from microSD.

**kunix** · 9th February 2014, 05:04 PM

I'm sure that normally the unit will stay in pre-boot (well it's not a real pre-boot, coz boot.bin is being executed, not bootloader, but USB commands can be accepted, exactly as in the real pre-boot mode) mode just after flashing boot.bin.
Can you please confirm that using a healthy unit? It's not dangerous to flash an original boot.bin alone. Just rename RGN from 082701000620-org.rar to 097201000620.rgn.

Also what about 082701000620-org.rar and the broken unit?

Also can you please flash 082701000760-true.rar and tell me if it stays in pre-boot mode?
082701000760-true.rar contains the original 827's boot.bin.
I think it's not harmful to flash it again (you've already executed it as ldr.bin).

[Only registered and activated users can see links. ]

**lolypop000** · 9th February 2014, 05:05 PM

@smokefree

Please upload your 082701000620.rgn will try something else

We will change boot.bin to execute pack from SD

**lolypop000** · 9th February 2014, 05:24 PM

1.) Extract pack from post #10 on SD and add SD in nuvi
2.) download this pack below and flash in pre boot

Spoiler:

3.) if work you will have 14xx boot.bin on your unit

**smokefree** · 9th February 2014, 09:24 PM

loly, just to get the instructions in step 1 right: do I just add the microSD in the GPS but not switch it on until pre-boot in step 2?
Or do I flash the software from the microSD first and then proceed with step 2?

**smokefree** · 9th February 2014, 09:56 PM

While waiting for a reply to my previous post, I will continue with kunix's suggestions:

Originally Posted by kunix

I'm sure that normally the unit will stay in pre-boot (well it's not a real pre-boot, coz boot.bin is being executed, not bootloader, but USB commands can be accepted, exactly as in the real pre-boot mode) mode just after flashing boot.bin.
Can you please confirm that using a healthy unit? It's not dangerous to flash an original boot.bin alone. Just rename RGN from 082701000620-org.rar to 097201000620.rgn.

I'm reluctant to flash anything into the healthy nüvi 1490T until I know how to salvage the bricked unit. I did create a backup of rgn 41 of the healthy unit though.

Originally Posted by kunix

Also what about 082701000620-org.rar and the broken unit?

I get the message "No updates are available for your product":

x44c

Originally Posted by kunix

Also can you please flash 082701000760-true.rar and tell me if it stays in pre-boot mode?
082701000760-true.rar contains the original 827's boot.bin.
I think it's not harmful to flash it again (you've already executed it as ldr.bin).

[Only registered and activated users can see links. ]

Same happened as in post #14:

c58k

.

The screen of the unit then shows the text "LOADER" for about 10 more seconds and then repetitively briefly shows "SYSTEM SOFTWARE MISSING" until I disconnect the unit from the PC.

Thread: Bricked my nüvi 1490...

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