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Forum > Sony Ericsson / Sony > Software, Firmware and Drivers > Debranding via SEUS

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Author Debranding via SEUS
bojo
T68 gold
Joined: May 20, 2005
Posts: 7
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Posted: 2005-05-20 11:16
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Hi!

Has anyone experience in debranding phones via the original update service? I have read about this in a newsgroup and tryed it by myself with my P900 and it worked!

Now i tried with a K700i and it didn't work.

The tacics is to provide a different CDA Number (from a unbranded phone) to the SEUS Server to get the new unbranded firmware.

As i wrote abobe it's truly working with P900s and P910s but i didn't get it to work with a K700i.

I read on an other Topic here, that for K700 updating the server isn't looking at the CDA but in the IMEI! Is this confimed by now?
Maybe this is the problem why it works on P Series an not on others!

Any ideas?

Greets
Bojo
DCUK7
Xperia X10 Mini Black
Joined: Aug 01, 2004
Posts: > 500
From: Liverpool, UK
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Posted: 2005-05-20 12:16
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I have never heard anyone debranding a K700 via the SEUS. The phone will check for a branded phone and deploy the relevant firmware.
Sebby
W810 black
Joined: Dec 12, 2004
Posts: > 500
From: London, UK
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Posted: 2005-05-20 12:19
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@ ~DC:UK~
This is true, but it checks using the CDA.

@ bojo
The IMEI is used to see whether the phone is allowed to use the service, but I believe the CDA is still used to select the correct firmware. Did you change the CDA of your K700i? If so, what to?

_________________
K700i (Unlocked/Unbranded)
R2AT003 EU3; CDA 102298/83

[ This Message was edited by: Sebby on 2005-05-20 11:21 ]
bojo
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Posted: 2005-05-20 12:30
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@~DC:UK~: Then i am wondering why it works with the P Series.

@Sebby: I did't change it on the phone! I hava a modified .dll that should fool the SEUS the unbranded CDA. I tryed with CDA 102286/17.
(I need a unbranded German Version)

You might be right with the IMEI. I tried with two different phones with two different brandings from 2 Providers.
The one did update, but the new branded firmware.
The other gave me an error "not allowed to update" or something like this.

The problem might be on the .dll file but i am wondering why it works with P900. I didn't change anything after sucessful unbranding the P900 except of the CDA.

Thanks a lot!
Greets
Bojo
Sebby
W810 black
Joined: Dec 12, 2004
Posts: > 500
From: London, UK
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Posted: 2005-05-20 12:42
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@ bojo

Have you got a link to this site that tells you how to modify the DLL? [addsig]
bojo
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Joined: May 20, 2005
Posts: 7
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Posted: 2005-05-20 13:32
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@ Sebby: Check PMs!

[ This Message was edited by: bojo on 2005-05-20 12:35 ]
DCUK7
Xperia X10 Mini Black
Joined: Aug 01, 2004
Posts: > 500
From: Liverpool, UK
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Posted: 2005-05-20 14:07
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@ bojo

The P9xx SEUS is far more reliable than the K700/S700 version. It makes me think it uses a different way of deploying the firmware as I have used the update service 5 times since it was made for the K700/S700 and three times it has corrupted the firmware.

In short, they most probably are different in how they perform the flash. I would not trust the update service to do a successful debrand even if you got the right CDA for it.
bojo
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Posts: 7
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Posted: 2005-05-20 14:18
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I updated the K700i yesterday a few times and had no troubles!

The only thing strange to me was, that the program didn't recognise that the actual firmware is already installed! I thought that the update program would say at the secound attempt, that the firmware is up to date, but it didn't! He flashed it again with the same firmware i've loaded before! Istn't that a bit strange??

Another thing i recognized was that the update programm downloaded 2 files in the software directory, one is bout 8mb big and the secound is abot 1.5mb big and has tmobile in it's filename.
Could the big file be the original software and the small one (with tmobile) the "patch" for the branding?

And if this is true what is happening when i delete this tmobile file before flashing??

Greets
gbrooks3
P1
Joined: Jun 02, 2003
Posts: > 500
From: OTP RED CID36
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Posted: 2005-05-20 14:43
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The small file will no doubt be a signed file archive. Used in combination with main firmware it will update the firmware on the phone without erasing the whole file system.

Because the platform sends bogus messages while charging, that is why!!!..But why this change of heart?..We sense a charger connected, oops, we will not shut down after all!!!..*********************** UI BASIC, HOLD YOUR HORSES
Milton
K700
Joined: Apr 23, 2005
Posts: 12
From: Sweden
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Posted: 2005-05-21 10:33
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@Sebby or bojo

Could ypu please PM me the link. Think this sounds bery interesting.
mamba
K600
Joined: Nov 21, 2004
Posts: 138
From: 9ja
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Posted: 2005-05-21 11:14
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Quote:

On 2005-05-21 10:33:49, Milton wrote:
@Sebby or bojo

Could ypu please PM me the link. Think this sounds bery interesting.



I need that link too...
CodeMaster
Z800
Joined: Feb 18, 2005
Posts: 23
From: Johannesburg, RSA
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Posted: 2005-05-21 12:58
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Do u guys think this will work for a V800>Z800 conversion?

I have a CID36 V800, and at the moment there is no way to flash the phone with Z800 firmware. I wonder if SEUS has Z800 firmware yet?
Always borrow money from a pessimist... They never expect to get it back.
sapporobaby
J110 Cream
Joined: Sep 14, 2003
Posts: > 500
From: Finland. Kuwait maybe :)
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Posted: 2005-05-21 19:36
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Could you PM me these instructions as I have a CID36 Vodafone v800.
*edited on a Mac of course. Mac: There is no substitute*

N82(YES), iPhone 3G, Shure es530, Nikon D300, more stuff. No more SE stuff, why am I still here?
gbrooks3
P1
Joined: Jun 02, 2003
Posts: > 500
From: OTP RED CID36
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Posted: 2005-05-21 19:58
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I am pretty sure you will not unbrand with SEUS, SEUS is upgrade only, not a full system rewrite. But with some operators who use main firmware as the branding medium it may work. Modifying the dll will not suffice anymore, IMHO

Because the platform sends bogus messages while charging, that is why!!!..But why this change of heart?..We sense a charger connected, oops, we will not shut down after all!!!..*********************** UI BASIC, HOLD YOUR HORSES
sapporobaby
J110 Cream
Joined: Sep 14, 2003
Posts: > 500
From: Finland. Kuwait maybe :)
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Posted: 2005-05-21 20:32
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Hey gbrooks,

Any news about finally flashing the CID36 phones (v800)?
*edited on a Mac of course. Mac: There is no substitute*

N82(YES), iPhone 3G, Shure es530, Nikon D300, more stuff. No more SE stuff, why am I still here?
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