How to debrand a C702, C902, C905, G502, G705, K630, K660, K700, K850, T700, V640, W595, W705, W760, W890, W902, W910, W980, Z750, Z770, Z780 cellphone from Sony Ericsson.
by Benjamin on May.05, 2009, under Debranding, Sony Ericsson, SonyEricsson C905
This guide is for you who doesn’t like all the crappy operator stuff your operator adds to the original phone rom.
This can be pictures and the ability to use certain features on the phone.
This guide is also recommended if you have bought your phone on a vacation or bought it on EBay or something similar, and it doesn’t have your preferred language and dictionary.
First make sure that your Sony Ericsson phone is in this list:
C702, C902, C905, G502, G705, K630, K660, K700, K850, T700, V640, W595, W705, W760, W890, W902, W910, W980, Z750, Z770, Z780
This phones are in category A2 (db5150). Don’t know what this means? Don’t worry. As long as your phone is within the above list.
Also please remember that this isn’t a way to simunlock your phone. This is only to install an original Sony Ericsson firmware.
But most important… BEWARE... This can be dangerous to your phone. So please make sure that you do what is written, so we don’t get any nasty surprises.
Also remember to take a backup of your phone. Everything will be deleted.
Download “A2 Uploader”
|
download: A2 Uploader (4.34MB) added: 05/05/2009 clicks: 6318 description: Makes it possible to edit files within the phones hidden system folder. |
Download “A2 CDA File Generator”
|
download: A2 CDA File Generator (142.97KB) added: 05/05/2009 clicks: 6237 description: Creates the new ID number for your phone. |
The way we are going to debrand your phone is by going into the locked, and hidden system drive on your phone. There we put an xml file with some changes.
Inside in the system a certain number describes what country your phone is from, and what operator it has.
Mine is 1212-9620. 1212 for northern Europe and 9620 for my operator which is Hi3G aka “3″.
We exchange this number with one you prefer. After we have changed this number we connect your phone to the original Sony Ericsson updater service, which now believes that your phone is from another operator, or from another country.
Now lets get started.
The original number from your phone, you should save, in case you need to send it back to be fixed. This procedure will properly remove the warranty, so we need to make sure we can go back to the original firmware. 
This is done with A2 Uploader.
- Turn Off your phone and remove the battery and put it again.
- Connect the USB cable to the phone and Press C button. Please not that on some phones, you need to pres 2+5 key.
- Execute A2uploader on your computer, and press the identify button: (If your virus scanner goes berserk, don’t worry. This program isn’t a virus. But it hacks into Sony Ericssons software, which is why the antivirus programs doesn’t like it)
- Then plug in your USB cable to the computer, and should appear a text like this:
INFO fra A2 UPLOADER
ChipID:E800,EMP protocol:0401
PHONE STATE: “RETAIL”
FLASH CID: XXXX
OTP LOCKED:1 CID:XX PAF:1 IMEI:XXXXXXXXXXXXXXX CERT:RED
Model:C905
MAPP CXC article:XXXXX XXXXX XXXXX
MAPP CXC version: XXXXX
Language Package:HUTCH-WORLD
CDA article: 1212-9620
CDA version: R16A
Default article: XXXXX
Default version: XXXXX
Network LOCKED
Operator: MULTIPLE
Elapsed:19 secs.
The interesting part is the CDA article number.
Copy that to a safe place. Write it down. Tattoo it to your forehead. I don’t care. Just don’t loose it.
No we need to create the new xml file.
Start A2 CDA File Generator v1.03.exe and chose your region. Mine is “Nordic” and therefore the outcome of the XML file is this:
<?xml version=”1.0″ encoding=”utf-8″?>
<customization>
<info>
<model>C905</model>
<phone-name>C905</phone-name>
<cda-number>1209-4769</cda-number>
<language-variant-name>NORDIC</language-variant-name>
<created-by>bboyzahid and Jockep</created-by>
</info>
</customization>
(I guess I don’t need to tell you to press “generate XML file”. )
- Now start A2 Uplaoder, again.
- Click File System in A2 Uploader
- Connect the phone to USB via A2 Uploader holding the C key.
- Don’t leave C-key until A2 uploader detects your phone and starts.
- Upload the Customize_upgrade xml file to the phone file system in directory tpa/preset/custom in the phone.
- Now Shut Down the File System Manager in A2uploader. Dis-Connect your phone, Re-insert battery, Start phone for CDA changes to happen. This takes around a minute.
Download Sony Ericsson Update Service, Install and start.
Now choose your phone from the list and update it. The SE-program guides you.
Now the phone changes display to show some kind of bios and after that it updates etc. Takes around 5 minutes.
Congratulation. Your phone is now in your language and debranded.
96 Comments for this entry
2 Trackbacks / Pingbacks for this entry
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what do i need to flash my c902? - SE Users
July 4th, 2010 on 12:04[...] my C905 so aim for V4 and you shud be fine also take a look at this, this helped my loads….. How to debrand a C702, C902, C905, G502, G705, K630, K660, K700, K850, T700, V640, W595, W705, W760,… but make sure you take your time and follow all [...]
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Debranding c905a - SE Users
July 4th, 2010 on 12:17[...] Re: Debranding c905a i have a c905 and thats debranded and i use wifi, after debranding its gets rid of this crap, mine was branded to orange and it removed all the bars and orange world crap now its just a normal SE MODEL which i am very happy with, you will need a2uploader V4 peeps say you can use V2 but i had no joy so use V4 and you shud be fine also you will need a2 cda file generator and take a look at this is a great walkthrough but take your time and follow all steps………. How to debrand a C702, C902, C905, G502, G705, K630, K660, K700, K850, T700, V640, W595, W705, W760,… [...]
January 12th, 2010 on 02:30
Worked like a charm. Now my c905 finally got rid of its UK-T-mobile branding and at last enables swedish langugage
Allen: Just drag and drop the .xml-file to the above mentioned folder.
January 23rd, 2010 on 23:46
Didn’t work.. Folowed step by step but update service says that i have the latest software and doesn’t update my w595.. It is still branded
February 4th, 2010 on 20:22
For every C905 user !
I had: “ChipID:E900,EMP protocol:0401″ instead of “ChipID:E800,EMP protocol:0401″ so A2 uploader V3 didn`t work for me.
After pressing Identify button it wrote just the first column and ended.
I downloaded A2uploader V4 and then it worked fine to the sucessfull end.
Hope this helps
Martin
Czech Republic
March 26th, 2010 on 00:49
Hi ,have the same issue. Could you send me the link to the A2unloader V4. Thanks
March 9th, 2010 on 01:27
It’s working and debranded my c902
thanks
March 14th, 2010 on 19:49
I’ve done it and it worked!!!Many thanks!!!I have greek language at last!
March 18th, 2010 on 06:19
I am trying to do this with the c905a, but SEUS says it has the latest software. Does anyone know if this works for phones from AT&T (US)? I just got the phone recently
March 21st, 2010 on 18:21
why do not worked in w910 i try to insert adirict for greek and nothing!!!:(:(:(
March 22nd, 2010 on 12:12
I have tried to unlock my c905a locked and branded to Rogers, I have tried it a couple times and it didnt work yet. I tried changing the CDA to a different region since the SE update didnt work at first.
THIS WILL FIX IT IF YOU CANT GET SE UPDATER TO WORK, SIMPLY CHANGE YOUR CDA TO A DIFFERENT REGION.
March 22nd, 2010 on 12:55
will try today…thanks for tutorial.
Karachi Pakistan
March 25th, 2010 on 19:53
Worked like a charm on my moms K660 ^^
March 26th, 2010 on 00:36
erhmm where does it save the xml file on my pc ?
March 27th, 2010 on 16:45
in the same folder where the program is
March 27th, 2010 on 08:17
worked a treat thanks very much:D all the way from australia
lol
April 3rd, 2010 on 12:27
thank you so much!
it worked perfectly! and now i have greek at last!
note: Andriatic is the choice for greeks!
ευχαριστω!!!!!!!!!!!
April 9th, 2010 on 01:54
i`m new in this… and i need help
how to upload in a2 uploader customize_upgrade.xml file?
i tried after using file system to drag and drop file… it is shown in file list, but after i check again is not there.
thnks
April 20th, 2010 on 22:07
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May 7th, 2010 on 01:40
Great!!! Had installed update on my w980 and had lost FM Transmitter application. Used this to update my phone to New Zealand and all is back working perfectly. Thanks for the easy to follow instructions.
July 19th, 2010 on 22:20
i got a w980 it wont pick the phone up and i am de branding it because my screen has gone black but my numbers still light up any help plz. messeage me back badboykaka@hotmail.com
May 10th, 2010 on 11:08
When buying Cellphone Batteries make sure that you are not getting those chinese fakes and knockoffs.:;-
May 12th, 2010 on 20:36
Can any one advise where I can get more detail about the CDA article # ?
Not sure what I should put in…
I have a C905 from Rogers, Canada and would like to get chinese language.
Many many thanks!!!!!!!!!
June 1st, 2010 on 11:50
Hi, the file A2 CDA File Generator doset execute. i downloded A2 CDS file generator from diffrent locations but it doesnot execute and ends given error. need help
June 1st, 2010 on 19:23
Thanks! This actually worked on my W595
June 4th, 2010 on 17:17
BIG THANKS FROM CROATIA ! IT WORKS !
June 6th, 2010 on 07:33
Good info on cell phone unlocking. I like cell phones and work at a little cell phone shop where we unlock phones and mod them for people. Add http://free-cell-phone-unlock.com to your list of free cell phone unlock sites, I use the downloads there a lot to help me unlock phones for customers, don’t be mad but hey I have to make a living some kinda way!! lol.
Anyways, I figured you could use that in your bag of tricks too
June 10th, 2010 on 18:22
india is not listed in the countries for file generation what should i do i got the phone from uk t-mobile
June 10th, 2010 on 18:36
Thanks , bro , and know i have a debranded phone =)
June 20th, 2010 on 13:11
PERFECT MY C905 HAS NO ORANGE CRAP ON IT.
Thanks for the guide, only isssues but have been noted above drag and drop the new xml file to the location in walkthrough AND use the A2 UPLOADER V4!
Im really made up, only takes 30 mins at most
THANK YOU !!!!!!!!!!!!!!
June 20th, 2010 on 22:46
hiii,i have did everthing as told above but then when i switch the phone on it still has the t-mobile logo at the top of the screen ,is it suppose to be like that,hellllpppppppppp
July 4th, 2010 on 21:32
The only bit i dont get is how to upload customize_upgrade xml file to tpa/preset/custom file?? is the later one file? i can find them all but they are all individual files! how do you get the upgrade xml file where it needs to go? dont get the upload bit or the comments about drag and drop it? any help would be appreciated!
July 8th, 2010 on 13:01
C905 works for me with v3
however, when I connected up to Sony update service it told me i alresdy had latest software – however i chose reinstall anyway and it loaded the new debranded firmware
July 18th, 2010 on 04:24
will debranding lock a previously unlocked phone
please help me
July 18th, 2010 on 20:26
works very well
but f your phone is a cid53 one you may need to download new a2uploader
in this uploader only the first lines appear when connected
anyway many thanks to the man
July 24th, 2010 on 13:42
Great job, worked wonders on my Sony Ericsson W705…. now i can use my phone to its full potential!
This guide really helps and works, even though i cut out some of the steps ….. Brilliant…. 
July 25th, 2010 on 13:16
- Connect the phone to USB via A2 Uploader holding the C key.
- Don’t leave C-key until A2 uploader detects your phone and starts.
Please help me, i do as there is told, but it just keep saying Hold “C” and insert usb cable..
July 26th, 2010 on 20:06
Thank you very much, I have successfully debranded C702