Network Lock

[johnnysacc]

This may sound like an odd question being asked in a forum about unlocking but I am looking for a solution to lock Sony Ericsson phones to any network using MCC-MNC codes. Sorry, my clients require this service. From what I understand there is nothing available for newer model SE phones. I am hoping that you guys might be able to offer a solution. I have a SEtoolbox 3 but it won't work with newer phone security. TIA for any help.

[Khaba]

just entering a code in the *<**< menu is not enough? it should be, isn't it?

[johnnysacc]

just entering a code in the *<**< menu is not enough? it should be, isn't it?

Tried, doesn't seem to work.

[harper1988]

I don't think this is even possible? One solution may be to flash the firmware of the phone using the service providers firmware.

[johnnysacc]

I don't think this is even possible? One solution may be to flash the firmware of the phone using the service providers firmware.

Unfortunately some of these service providers don't have their own firmware. The only way to lock the phone is by just using the MNC/MCC. I know it's possible, I know of someone already able to lock these phones. In the newer models, where is the lock located?

[Beep88]

Can you not lock by flashing specific codes found in customize.xml to the phone using customize_upgrade.xml?

For instance the following locks the phone to network and sp (Network=Rogers, SP=Fido in Canada). Look at the cust pack for Z710 for Fido_Canada

- <simlock>
<number-of-mnc-digits>3</number-of-mnc-digits>
<cnl>302720FFDD00</cnl>
<cnl>302370FFDD00</cnl>
<cnl>302720FF0000</cnl>
- <lock simlock-category="sp">
<status>locked-to-cnl</status>
<retries>5</retries>
<autolock>false</autolock>
</lock>
- <lock simlock-category="nw">
<status>locked-to-cnl</status>
<retries>5</retries>
<autolock>false</autolock>
</lock>
</simlock>

[yulicapop]

for k770? i want to unlock

[hyperion17]

If your K770 is EROM CID52, you can easy unlock it following the tutorial "B. How to apply the generated patches to DB2020 CID52 phones", from this thread: http://www.topsony.com/forum/showthread.php?t=6329
If it's EROM CID 53, you can't unlock it for free.

[johnnysacc]

Can you not lock by flashing specific codes found in customize.xml to the phone using customize_upgrade.xml?

For instance the following locks the phone to network and sp (Network=Rogers, SP=Fido in Canada). Look at the cust pack for Z710 for Fido_Canada

- <simlock>
<number-of-mnc-digits>3</number-of-mnc-digits>
<cnl>302720FFDD00</cnl>
<cnl>302370FFDD00</cnl>
<cnl>302720FF0000</cnl>
- <lock simlock-category="sp">
<status>locked-to-cnl</status>
<retries>5</retries>
<autolock>false</autolock>
</lock>
- <lock simlock-category="nw">
<status>locked-to-cnl</status>
<retries>5</retries>
<autolock>false</autolock>
</lock>
</simlock>

Thanks for the reply. Just curious, I am assuming I would have to use FAR to get access to the customize_upgrade.xml? I am a nub to Sony Ericsson so please forgive the ignorant question. Also, should this work, is it possible to create a customization file for a phone model that I can later apply to different phones?

[harper1988]

you can actually use one from the download area and change it yourself possibly.