Z710i Unlock/debranding questions

I’m new to SE Phones and the whole unlocking debranding, but I’ve been trying to read quite a bit. I recently purchased a slightly used Z710i which was locked to Fido. I was planning to unlock/debrand it to use with my Rogers plan which I still have a year of commitment.

I unlocked the phone with GSMLiberty which seemed to go well, but now the phone has an unusual problem. The display shuts off when you close the clam shell or when it goes into screensaver mode. I have to shut the phone off and turn it on again to get the display back. I was hoping that when I debrand it, it would clear the problem. At present it is at CID49, would it help to upgrade it to CID50/51? What is the best program to use to bebrand/upgrade, XS++ or SETools Lite?

Any help would be appreciated. Thanks.

is it phone lock

Not sure what you are asking. The phone is unlocked as far as being able to use it on other networks (it works with my Rogers sim card). There are no security settings or locks set. I did a Master Reset and SE update indicated that the firmware is upto date.

I can tell the phone is still functioning, it's just the display is not working, which makes using the phone rather difficult.

I’ve managed to re-lock my phone. I used XS++ V2.0 and Z710_R1EF001_MAIN_GENERIC_CN_RED49 & Z710_R1EF001_FS_AMERICA_2_RED49. I backed-up the GDFS before I started with XS++, then flashed the Main & FS. The phone restarted and no longer shuts down when I close the clamshell, but it gives me the Insert Correct Sim Card message. I tried to recover the GDFS that I backed-up, but it didn’t change anything.

I think the problem might have something to do with the fact that, after I unlocked the phone, it indicated NETWORK: LOCKED (when read with SETool). It worked with my sim card on the Rogers Network even though it was previously locked to FIDO.

Is there anything I can do to restore the unlocked condition or do I have to unlock it again?

try to xs++ or SeTool2lite for unlock your phone...

Quote:

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Originally Posted by ant_3986

try to xs++ or SeTool2lite for unlock your phone...

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I'm not aware that SETool2lite or XS++ can unlock SE DB2020 phones. Can you point me to a post that discusses this?

P.S. I think I might have found something about unlocking CID49 phones. I'll have to check it out later.

P.P.S. I'm pretty sure the tutorial for unlocking DB2020 is for the FULL Version of SE Tool not SE Tool Lite. Unless someone can correct me?

Well I have been working with the GSMLiberty techs to resolve the problem. They appear to be applying a patch to the firmware to unlock the phone. I had reflashed the Z710_R1EF001_MAIN_GENERIC_CN_RED49 & Z710_R1EF001_FS_AMERICA_2_RED49 Main & FS and I flashed the Z710i_CDA102651_7_R3A_Generic_Trade_USA custpack, because I understood that you need to add the correct custpack to ‘finalize’ and I was hoping to get my phone’s files to the same CID and region.

GSMLiberty gave me an additional unlock code (free) with instructions to use both the MAIN and FS RAW files I used their Z710a_CXC1250434_NAM1_R1EF001_Red49 & Z710i_CXC1250436_America2_R1EF001_Red49 files to unlock my phone. Everything seemed to go well with their DClient software not reporting any errors. However, my phone now displays the following error message "Configuration error. Please contact your service provider or service center."

I give credit to the GSMLiberty techs as they are still patiently assisting me and I’m not in dire straights as I have my old phone that I can use while I sort this out. I’d just like to start using my ‘new’ phone. Is there any chance that I still have a conflict between Main/FS & my custpack? If I flash a different custpack does it risk changing the patch and relocking my phone? I wouldn’t think so as I understand changing the custpack is part of the fun that everyone is having with these phones.