C500 ROM Rollback

[Guest jr7887]

Hi

Does anyone know how to roll back ROM versions for the C500. I've just installed ROM version 4.2.1.1 and found that the device will no longer attached to my GPS device, even after a large amount of playing around with COM ports etc.

I want to roll back to version 4.1.1.4, however when I try it won't let me. Is there any trick to it?? Would I need to do a hard reset on the device?? (I hope not as it would mean unlockng it again).

thanks

Jamie

[Guest Cybox]

I have this same problem as well and was just about to post a topic or search for GPS problems....

Any help would be great thanks!

[Guest Zone-MR]

You can use our TyphoonNbfTools utillity to reflash an old bootloader, which will let you downgrade the rom.

Here's a tutorial:

http://www.mobismart.net/forums/Default.aspx?g=posts&t=683

[Guest jr7887]

Many thanks for your help here, that did the trick perfectly, you guys certainly know your stuff. My phone is back on the old 4.1.1.4 ROM and working perfectly with Tomtom 4.

Great help, much appreciated! :)

[Guest hairlessheart]

Upgraded to the new ROM. TT5 mobile now no longer works, so am trying to get back to my old ROM. Have read the threads on how to do it, but where can I actually get a ROM that isn't French?

Cheers

[Guest Miniman99]

http://web.orange.co.uk/yourphone/spvc500/...l?id=sm_1137635

That's the UK one, if you don't want UK, try searching.

[Guest hairlessheart]

Cheers Miniman. You're a saviour! :)

http://web.orange.co.uk/yourphone/spvc500/...l?id=sm_1137635

That's the UK one, if you don't want UK, try searching.

<{POST_SNAPBACK}>

[Guest Cybox]

Hi there, I follwoed those instructions and it seemed to be a successfully rollback, however it is now just sitting at the bootloader screen not booting..??

Any ideas on how to fix this?

[Guest WallabyFan]

You can use our TyphoonNbfTools utillity to reflash an old bootloader, which will let you downgrade the rom.

Here's a tutorial:

http://www.mobismart.net/forums/Default.aspx?g=posts&t=683

<{POST_SNAPBACK}>

Just as a purely hypothetical question - would this process also work to get a C500 back to original from a WM5 ROM?

:)

[Guest flotulopex]

I just heard from ORANGE SWITZERLAND that the GPRS connection is hangup after 3 hours "wait state" to free system capacity.

It will reconnect automatically next time you make a GPRS connection.

If it doesn't, change this in your Internet Connections setttings: choose "Internet" instead of "Automatic".

[Guest Pondrew]

I just heard from ORANGE SWITZERLAND that the GPRS connection is hangup after 3 hours "wait state" to free system capacity.

It will reconnect automatically next time you make a GPRS connection.

If it doesn't, change this in your Internet Connections setttings: choose "Internet" instead of "Automatic".

<{POST_SNAPBACK}>

Okay. Random much?!