[provider unlock] samsung galaxy 551 GT-i5510

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alucka

New member
Feb 2, 2009
3
1
Hi,
I have purchased a 5510 for one of my parents, without Contract, but blocked by a French provider: "Bouygues Telecom".
I think that's going to be easy to unlock, but I have not yet find how.
The phone has been flashed on the latest stock rom samsung (samfirmware) and it is not root.
if the root is necessary, what app or software is needed? and how to unlock?

ps: as a purchase without Contract, I can not ask my provider to unlock it.
 

alucka

New member
Feb 2, 2009
3
1
[solved]

this solution works for me with the last rom samsung and rooted by "SuperOneClickv2.3.3-ShortFuse".

it's in french, so good luck with google translate! :)

phonandroid.com/forum/desimlocker-samsung-ace-s5830-en-invite-de-commande-t4206.html
 
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JT-on

Senior Member
Jul 11, 2012
178
40
Ontario
this solution works for me with the last rom samsung and rooted by "SuperOneClickv2.3.3-ShortFuse".

it's in french, so good luck with google translate! :)

phonandroid.com/forum/desimlocker-samsung-ace-s5830-en-invite-de-commande-t4206.html

I can confirm this works on my I5510M from Bell Mobility. I just tried it using a TELUS sim card.

Here are the steps I took:

0. Type in dial pad *#7465625#, make sure network lock is [ON]... if not you're not simlocked
1. If phone is not rooted, download SuperOneClickv2.2-ShortFuse.zip from this thread: http://forum.xda-developers.com/showthread.php?t=803682
2. Connect the phone to your computer using, windows 7 installed the correct drivers for me
3. Once the drivers are installed, disconnect your phone
4. Open SuperOneClick
5. Reconnect your phone to the computer
6. Press Root in SuperOneClick... wait for it to finish (may take ~2-5 min)
7. Your phone is now rooted, hooray
8. Make sure your phone is in debug mode. Settings > Applications > Developer > Debug Mode
9. Copy ADB folder from SuperOneClick folder to C:\
10. Open command prompt (start > run > cmd)
11. Type in the following commands:
Code:
cd C:/adb (navigate to the adb folder you just placed)
adb devices (to verify device is connected)
adb shell
su
cat /dev/bml5>/sdcard/bml5.img (thats an "L" not a "one")
exit

You just copied bml5 binary to the root of your sdcard. If you get access denied, your phone was not properly rooted, try again.

12. Mount your SDCard and copy bml5.img to your desktop
13. Download HexEdit here: http://www.physics.ohio-state.edu/~prewett/hexedit/
14. Open bml5.img in HexEdit
15. Press FIND, select HEX, and paste in "FF FF FF FF FF FF FF FF FF FF 30 30 30 30 30 30 30 30" (without quotes), then press OK
16. It should find the hex sequence, look to the right pane of HexEdit and you'll see an 8-digit numeric code (mine was split over two lines). This is your sim unlock code. Write down this code.
17. Turn off your phone
18. Place another networks simcard in your phone, and turn your phone back on
19. After it boots, it'll say this phone is network locked, and prompt for an unlock code... type the code found in step 16
20. If it doesn't prompt type in in the dialer: #7465625*638*# then type in your code
21. It should unlock no problem
22. Double check by typing *#7465625# in the dialer and making sure Network Lock is [OFF]

Let me know if you have any questions. Cheers.
 

falcon09

New member
Jan 6, 2013
3
1
stuasmo City

I can confirm this works on my I5510M from Bell Mobility. I just tried it using a TELUS sim card.

Here are the steps I took:

0. Type in dial pad *#7465625#, make sure network lock is [ON]... if not you're not simlocked
1. If phone is not rooted, download SuperOneClickv2.2-ShortFuse.zip from this thread: http://forum.xda-developers.com/showthread.php?t=803682
2. Connect the phone to your computer using, windows 7 installed the correct drivers for me
3. Once the drivers are installed, disconnect your phone
4. Open SuperOneClick
5. Reconnect your phone to the computer
6. Press Root in SuperOneClick... wait for it to finish (may take ~2-5 min)
7. Your phone is now rooted, hooray
8. Make sure your phone is in debug mode. Settings > Applications > Developer > Debug Mode
9. Copy ADB folder from SuperOneClick folder to C:\
10. Open command prompt (start > run > cmd)
11. Type in the following commands:
Code:
cd C:/adb (navigate to the adb folder you just placed)
adb devices (to verify device is connected)
adb shell
su
cat /dev/bml5>/sdcard/bml5.img (thats an "L" not a "one")
exit

You just copied bml5 binary to the root of your sdcard. If you get access denied, your phone was not properly rooted, try again.

12. Mount your SDCard and copy bml5.img to your desktop
13. Download HexEdit here: http://www.physics.ohio-state.edu/~prewett/hexedit/
14. Open bml5.img in HexEdit
15. Press FIND, select HEX, and paste in "FF FF FF FF FF FF FF FF FF FF 30 30 30 30 30 30 30 30" (without quotes), then press OK
16. It should find the hex sequence, look to the right pane of HexEdit and you'll see an 8-digit numeric code (mine was split over two lines). This is your sim unlock code. Write down this code.
17. Turn off your phone
18. Place another networks simcard in your phone, and turn your phone back on
19. After it boots, it'll say this phone is network locked, and prompt for an unlock code... type the code found in step 16
20. If it doesn't prompt type in in the dialer: #7465625*638*# then type in your code
21. It should unlock no problem
22. Double check by typing *#7465625# in the dialer and making sure Network Lock is [OFF]

Let me know if you have any questions. Cheers.

Thanks, I can find the hexstrings 24 times in the image file but none of them has a 8 digit numeric string close by.
 
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falcon09

New member
Jan 6, 2013
3
1
For unlocking purpose I need to copy /dev/bml15, I was able to access it but after flashing I can't access it any more,any ideas?

/dev/bml15: No such device or address


thanks.
# id
id
uid=0(root) gid=0(root)
# ls -l /dev/bml15
ls -l /dev/bml15
brwxrwx--- root root 137, 15 2013-01-06 14:54 bml15
# ls -l /dev/block/bml15
ls -l /dev/block/bml15
/dev/block/bml15: No such file or directory
# cat /dev/bml15 > /sdcard/bml15.img
cat /dev/bml15 > /sdcard/bml15.img
/dev/bml15: No such device or address
# dd if=/dev/bml15 of=/sdcard/bml15.img
dd if=/dev/bml15 of=/sdcard/bml15.img
/dev/bml15: cannot open for read: No such device or address
# ls -l /dev/bml15
ls -l /dev/bml15
brwxrwx--- root root 137, 15 2013-01-06 14:54 bml15
# which cat
which cat
/system/bin/cat
# id
id
uid=0(root) gid=0(root)
# uname -a
uname -a
Linux localhost 2.6.32.9-perf #21 PREEMPT Fri Jun 10 11:53:15 IST 2011 armv6l GNU/Linux
#
 

cstuckless

New member
Jan 8, 2013
2
0
Worked for me - also a GT-i5510 from Bell

Thanks, I can find the hexstrings 24 times in the image file but none of them has a 8 digit numeric string close by.

I found it a few lines up from where the first occurrence of the string was. In the Hex editor, try scrolling up a few lines and see if there's an 8 digit code that isn't 00000000 - my stuck out like a sore thumb once I went back a few lines.
 

cstuckless

New member
Jan 8, 2013
2
0
For unlocking purpose I need to copy /dev/bml15, I was able to access it but after flashing I can't access it any more,any ideas?

/dev/bml15: No such device or address

Are you trying to copy /dev/bml15 or /dev/bml5? The instructions I followed were for /dev/bml5 and that worked for my phone.

Colin
 

likhil2k3

Member
Aug 5, 2010
7
0
that's awesome !!! was able to do mine.. I'm too happy to search for this thing as i was going to pay for the unlock... Thanks for sharing this buddy !!
 

kortsen

Member
Feb 9, 2012
7
0
Another Bell success story

My wife is on Bell and I'm on Telus. The only reason she hasn't switched is that Telus doesn't have a QWERTY phone she likes. These instructions worked flawlessly on her 551. XP found and installed the drivers with no problems. I used ES File Manager to copy bml5.img from the SD card to a shared folder on the XP machine via WiFi. When I ran the hex editor there was only one match for the hex search string and I scrolled up 2 lines and saw the code. I popped my Telus SIM in her phone and when it powered up it prompted me for an unlock code. I entered the code and made a couple of test calls.

I have attached a prtscr of the hex editor with the search string hilighted. Note that it's repeated 3 times and the scroll bar shows it's near the end of the file.
 

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dixonlynch

New member
Aug 9, 2010
1
0
greetings and thanks...

Excellent contribution, I have a GT-I5510L and follow his footsteps, at first the computer gave me two errors but it was nothing serious, and then did the miracle, but the hex editor to use was the XVI32, I saw a little more faster and easier to use.
 

TripArtist

Member
Dec 11, 2011
31
2
Kelowna
I can vouch that this method works great. Purchased a Bell branded phone for my wife (she broke her S3), followed the steps and voila!

Kudos. :)
 

Jeremy10001000

New member
Aug 13, 2014
3
0
Saint John
Read Only?

when I do the command "cat /dev/bml5>/sdcard/bml5.img" I get an error saying "cannot create /sdcard/bml5.img: read-only file system"
Help anyone?! xD
 

importpsycho

New member
Sep 8, 2011
2
0
THANKS JT-ON!
Grandpa needed simple phone for just making phone call, I had 551 collecting dust but those online unlocking sites were asking $25~$30 for unlock code, which is probably more than what phone is worth...
unlocked mine following your instruction!

just want let everyone this works but you have to use HexEdit, nothing else.
URL on JT's guide is not working, i downloaded some other random Hex reader and it did not find the FF FF 30 30....
I found HexEdit from some other site and it found FF FF 30 30 sequence no problem.
 

walidmel

New member
Dec 8, 2011
1
0
I can confirm this works on my I5510M from Bell Mobility. I just tried it using a TELUS sim card.

Here are the steps I took:

0. Type in dial pad *#7465625#, make sure network lock is [ON]... if not you're not simlocked
1. If phone is not rooted, download SuperOneClickv2.2-ShortFuse.zip from this thread: http://forum.xda-developers.com/showthread.php?t=803682
2. Connect the phone to your computer using, windows 7 installed the correct drivers for me
3. Once the drivers are installed, disconnect your phone
4. Open SuperOneClick
5. Reconnect your phone to the computer
6. Press Root in SuperOneClick... wait for it to finish (may take ~2-5 min)
7. Your phone is now rooted, hooray
8. Make sure your phone is in debug mode. Settings > Applications > Developer > Debug Mode
9. Copy ADB folder from SuperOneClick folder to C:\
10. Open command prompt (start > run > cmd)
11. Type in the following commands:
Code:
cd C:/adb (navigate to the adb folder you just placed)
adb devices (to verify device is connected)
adb shell
su
cat /dev/bml5>/sdcard/bml5.img (thats an "L" not a "one")
exit

You just copied bml5 binary to the root of your sdcard. If you get access denied, your phone was not properly rooted, try again.

12. Mount your SDCard and copy bml5.img to your desktop
13. Download HexEdit here: http://www.physics.ohio-state.edu/~prewett/hexedit/
14. Open bml5.img in HexEdit
15. Press FIND, select HEX, and paste in "FF FF FF FF FF FF FF FF FF FF 30 30 30 30 30 30 30 30" (without quotes), then press OK
16. It should find the hex sequence, look to the right pane of HexEdit and you'll see an 8-digit numeric code (mine was split over two lines). This is your sim unlock code. Write down this code.
17. Turn off your phone
18. Place another networks simcard in your phone, and turn your phone back on
19. After it boots, it'll say this phone is network locked, and prompt for an unlock code... type the code found in step 16
20. If it doesn't prompt type in in the dialer: #7465625*638*# then type in your code
21. It should unlock no problem
22. Double check by typing *#7465625# in the dialer and making sure Network Lock is [OFF]

Let me know if you have any questions. Cheers.


work ok thank you
 

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  • 4
    this solution works for me with the last rom samsung and rooted by "SuperOneClickv2.3.3-ShortFuse".

    it's in french, so good luck with google translate! :)

    phonandroid.com/forum/desimlocker-samsung-ace-s5830-en-invite-de-commande-t4206.html

    I can confirm this works on my I5510M from Bell Mobility. I just tried it using a TELUS sim card.

    Here are the steps I took:

    0. Type in dial pad *#7465625#, make sure network lock is [ON]... if not you're not simlocked
    1. If phone is not rooted, download SuperOneClickv2.2-ShortFuse.zip from this thread: http://forum.xda-developers.com/showthread.php?t=803682
    2. Connect the phone to your computer using, windows 7 installed the correct drivers for me
    3. Once the drivers are installed, disconnect your phone
    4. Open SuperOneClick
    5. Reconnect your phone to the computer
    6. Press Root in SuperOneClick... wait for it to finish (may take ~2-5 min)
    7. Your phone is now rooted, hooray
    8. Make sure your phone is in debug mode. Settings > Applications > Developer > Debug Mode
    9. Copy ADB folder from SuperOneClick folder to C:\
    10. Open command prompt (start > run > cmd)
    11. Type in the following commands:
    Code:
    cd C:/adb (navigate to the adb folder you just placed)
    adb devices (to verify device is connected)
    adb shell
    su
    cat /dev/bml5>/sdcard/bml5.img (thats an "L" not a "one")
    exit

    You just copied bml5 binary to the root of your sdcard. If you get access denied, your phone was not properly rooted, try again.

    12. Mount your SDCard and copy bml5.img to your desktop
    13. Download HexEdit here: http://www.physics.ohio-state.edu/~prewett/hexedit/
    14. Open bml5.img in HexEdit
    15. Press FIND, select HEX, and paste in "FF FF FF FF FF FF FF FF FF FF 30 30 30 30 30 30 30 30" (without quotes), then press OK
    16. It should find the hex sequence, look to the right pane of HexEdit and you'll see an 8-digit numeric code (mine was split over two lines). This is your sim unlock code. Write down this code.
    17. Turn off your phone
    18. Place another networks simcard in your phone, and turn your phone back on
    19. After it boots, it'll say this phone is network locked, and prompt for an unlock code... type the code found in step 16
    20. If it doesn't prompt type in in the dialer: #7465625*638*# then type in your code
    21. It should unlock no problem
    22. Double check by typing *#7465625# in the dialer and making sure Network Lock is [OFF]

    Let me know if you have any questions. Cheers.
    1
    [solved]

    this solution works for me with the last rom samsung and rooted by "SuperOneClickv2.3.3-ShortFuse".

    it's in french, so good luck with google translate! :)

    phonandroid.com/forum/desimlocker-samsung-ace-s5830-en-invite-de-commande-t4206.html
    1
    stuasmo City

    I can confirm this works on my I5510M from Bell Mobility. I just tried it using a TELUS sim card.

    Here are the steps I took:

    0. Type in dial pad *#7465625#, make sure network lock is [ON]... if not you're not simlocked
    1. If phone is not rooted, download SuperOneClickv2.2-ShortFuse.zip from this thread: http://forum.xda-developers.com/showthread.php?t=803682
    2. Connect the phone to your computer using, windows 7 installed the correct drivers for me
    3. Once the drivers are installed, disconnect your phone
    4. Open SuperOneClick
    5. Reconnect your phone to the computer
    6. Press Root in SuperOneClick... wait for it to finish (may take ~2-5 min)
    7. Your phone is now rooted, hooray
    8. Make sure your phone is in debug mode. Settings > Applications > Developer > Debug Mode
    9. Copy ADB folder from SuperOneClick folder to C:\
    10. Open command prompt (start > run > cmd)
    11. Type in the following commands:
    Code:
    cd C:/adb (navigate to the adb folder you just placed)
    adb devices (to verify device is connected)
    adb shell
    su
    cat /dev/bml5>/sdcard/bml5.img (thats an "L" not a "one")
    exit

    You just copied bml5 binary to the root of your sdcard. If you get access denied, your phone was not properly rooted, try again.

    12. Mount your SDCard and copy bml5.img to your desktop
    13. Download HexEdit here: http://www.physics.ohio-state.edu/~prewett/hexedit/
    14. Open bml5.img in HexEdit
    15. Press FIND, select HEX, and paste in "FF FF FF FF FF FF FF FF FF FF 30 30 30 30 30 30 30 30" (without quotes), then press OK
    16. It should find the hex sequence, look to the right pane of HexEdit and you'll see an 8-digit numeric code (mine was split over two lines). This is your sim unlock code. Write down this code.
    17. Turn off your phone
    18. Place another networks simcard in your phone, and turn your phone back on
    19. After it boots, it'll say this phone is network locked, and prompt for an unlock code... type the code found in step 16
    20. If it doesn't prompt type in in the dialer: #7465625*638*# then type in your code
    21. It should unlock no problem
    22. Double check by typing *#7465625# in the dialer and making sure Network Lock is [OFF]

    Let me know if you have any questions. Cheers.

    Thanks, I can find the hexstrings 24 times in the image file but none of them has a 8 digit numeric string close by.