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[Q] Sony Xperia U network unlock

It's probably a n00b question so apologies in advance, but if I root / bootloader unlock and Cyanogenmod flash an Android phone that's locked to a certain network, will that network lock be removed along with the official default Android ROM? Or is the lock at something like a BIOS level (or whatever the smartphone equivalent of a BIOS is)?
I bought a pre-unlocked Xperia U about a year ago that I've been using on Vodafone and had to return it under warranty (got stuck in a boot loop despite the fact that it's totally unmodified, not even rooted, honest!) and the replacement they sent back is locked to Virgin Mobile. They're telling me that the phone I sent them was originally sold to Virgin in France and locked to Virgin before I bought it, and that they've therefore fulfilled their responsibility. So I'm just wondering now about unlocking, and I've always been curious anyway about how / if bootloader unlocking, custom ROMs etc are related to network unlocking.
Thanks in advance for any help you can provide with this!

Bump The First

splscs said:
It's probably a n00b question so apologies in advance, but if I root / bootloader unlock and Cyanogenmod flash an Android phone that's locked to a certain network, will that network lock be removed along with the official default Android ROM? Or is the lock at something like a BIOS level (or whatever the smartphone equivalent of a BIOS is)?
I bought a pre-unlocked Xperia U about a year ago that I've been using on Vodafone and had to return it under warranty (got stuck in a boot loop despite the fact that it's totally unmodified, not even rooted, honest!) and the replacement they sent back is locked to Virgin Mobile. They're telling me that the phone I sent them was originally sold to Virgin in France and locked to Virgin before I bought it, and that they've therefore fulfilled their responsibility. So I'm just wondering now about unlocking, and I've always been curious anyway about how / if bootloader unlocking, custom ROMs etc are related to network unlocking.
Thanks in advance for any help you can provide with this!
Click to expand...
Click to collapse
well u can unlock it.. by getting the code from sony..
It will also unlock the ph..'s Sim lock..
Or ask the sony officialy for this.. they'll provide u every info required.
But unlocking the bl will do the job for you to be sim free
But do double check this from google too.
Also before unlocking pls make a backup as it will wipe everything from the device.
Just unlock and don't flash any custom kernels.If you want to then do it carefully pls with a backup and a copy of flashable stock rom.
Flash custom roms based on stock kernels
Hope this will answer the query..

Thanks for your reply! I spoke to Sony and they just told me to contact the network (which have done and they're wanting to charge me a fee to provide the unlock code). So to clarify, if I root the phone and unlock the bootloader, the network SIM lock will also be removed?

splscs said:
Thanks for your reply! I spoke to Sony and they just told me to contact the network (which have done and they're wanting to charge me a fee to provide the unlock code). So to clarify, if I root the phone and unlock the bootloader, the network SIM lock will also be removed?
Click to expand...
Click to collapse
Not by rooting but also i guess not even by unlocking bl..
how much are they charging exactly..
i'll try to find the link for this
Also check this that how many times is the code applied for unlocking..it should not be 0
use this *#*#7378243#*#* in dialer
then service info sim lock

ADDICT.ANK said:
Not by rooting but also i guess not even by unlocking bl..
how much are they charging exactly..
i'll try to find the link for this
Also check this that how many times is the code applied for unlocking..it should not be 0
use this *#*#7378243#*#* in dialer
then service info sim lock
Click to expand...
Click to collapse
When I dial that number, the number just disappears. What is it for? They want £15.32 for the code. Should I just pay them and forget about trying to remove the lock?

splscs said:
When I dial that number, the number just disappears. What is it for? They want £15.32 for the code. Should I just pay them and forget about trying to remove the lock?
Click to expand...
Click to collapse
Sorry the code is this
*#*#7378423#*#*
check the sim lock counters should be zero in all..
if zero then once u can try googling the code for unlocking if they work then it's great.
if not then it would be better to pay them for this as its a bit risky..
and are u using virgin's network??
As it's cheaper what they areaskingfor i guess.

ADDICT.ANK said:
Sorry the code is this
*#*#7378423#*#*
check the sim lock counters should be zero in all..
if zero then once u can try googling the code for unlocking if they work then it's great.
if not then it would be better to pay them for this as its a bit risky..
and are u using virgin's network??
As it's cheaper what they areaskingfor i guess.
Click to expand...
Click to collapse
Thanks, I'll give it a try! And nah I use Vodafone. Virgin has no signal at all in my area.

[Q] SIM unlocking the T-Mobile version of the Xperia Z3 (D6616)

Hi guys, well the thing is that I'm planning on getting the T-Mobile variant of the Z3 (D6616) but I would like to know if there is a root method for Lollipop?, since the update is already out. I have have searched all over the internet looking for answers but I couldn't find anything (only for KitKat; I know the LP update was released almost 2 weeks ago). I don't if there's something else necessary (apart from getting root access) to be able to SIM unlock this phone, I don't care about custom ROM's, kernels or any other kind of mod that requires the bootloader to be unlocked. Like I said, I just want to SIM unlock it and use the root access for Titanium Backup and maybe disable or delete the T-Mobile apps. Thanks in advance.

AntonyOrtega said:
Hi guys, well the thing is that I'm planning on getting the T-Mobile variant of the Z3 (D6616) but I would like to know if there is a root method for Lollipop?, since the update is already out. I have have searched all over the internet looking for answers but I couldn't find anything (only for KitKat; I know the LP update was released almost 2 weeks ago). I don't if there's something else necessary (apart from getting root access) to be able to SIM unlock this phone, I don't care about custom ROM's, kernels or any other kind of mod that requires the bootloader to be unlocked. Like I said, I just want to SIM unlock it and use the root access for Titanium Backup and maybe disable or delete the T-Mobile apps. Thanks in advance.
Click to expand...
Click to collapse
Yes there is root for it but I doubt you will be able to sim unlock it unless you pay full price for it from tmobile and us the sim unlock app that's on the phone already.

Lobo Lansky said:
Yes there is root for it but I doubt you will be able to sim unlock it unless you pay full price for it from tmobile and us the sim unlock app that's on the phone already.
Click to expand...
Click to collapse
That's the problem, because there's no way to officially get the Z3 from them (they only have the original Z and the Z1S and the only way to get one is from eBay) and I'm not a T-Mobile costumer. I would like to know if it's possible to get it unlocked with a third party unlock service.

I just bought one for use on AT&T and I'm also looking to sim unlock. I'll update when I find out more.
Sent from my SAMSUNG-SM-N910A using Tapatalk

If you are one AT&T better to get international version as the 700 Mhz LTE band is different from the TMO version's which is TMO specific. (Band 12)
For indoor use that makes a big difference in signal.
The low bands have better penetration. I am on T-Mobile so for me it's an advantage to use the D6616.
The D6603 (international) supports AT&T 700Mhz in addition to the others.
As for unlocking TMO version, for me I had to call TMO as the app did not work. They will only unlock after 40 days of device use on your account. It's done over the air...
So give it to a TMO customer for temporary use and unlock assuming IMEI is not blocked.

Root on Xperia D6616 T-mobile
AntonyOrtega said:
Hi guys, well the thing is that I'm planning on getting the T-Mobile variant of the Z3 (D6616) but I would like to know if there is a root method for Lollipop?, since the update is already out. I have have searched all over the internet looking for answers but I couldn't find anything (only for KitKat; I know the LP update was released almost 2 weeks ago). I don't if there's something else necessary (apart from getting root access) to be able to SIM unlock this phone, I don't care about custom ROM's, kernels or any other kind of mod that requires the bootloader to be unlocked. Like I said, I just want to SIM unlock it and use the root access for Titanium Backup and maybe disable or delete the T-Mobile apps. Thanks in advance.
Click to expand...
Click to collapse
Hi i have managed to Access Root, Deleted T-mobile Applications But Still No success, Have you got any luck to do it ?

mnszaidi said:
Hi i have managed to Access Root, Deleted T-mobile Applications But Still No success, Have you got any luck to do it ?
Click to expand...
Click to collapse
Maybe if you can get the HiddenSIMUnlockMenu.apk (Or whatever the app is named on Xperias) from another Xperia?

AntonyOrtega said:
Maybe if you can get the HiddenSIMUnlockMenu.apk (Or whatever the app is named on Xperias) from another Xperia?
Click to expand...
Click to collapse
i have found the hidden menu too. and now i am goi ng to explore my phone from PC and hope i will found it and enable it. i think after Enabling it i will be able to use 3rd party unlocking code to unlock. See below Image Push thanks if it helps you

hi
hi, already posted same reply in another sim unlock thread.
i have a d6616 tmobile version and bought the unlock code, non able to input the code, and not able to unlock with the stock app, dual recovery installed and rooted already, is there a way to put the simunlockapp.apk in the system and then using titanium backup pro, to make it internal so after rebooting, simunlock code prompting?
or to flash a rom that prompts the code
or is there any metropcs z3 rom that surely can be flashed even with locked bootloader to tmobile version?
any help
than you very much indeed

Hi, I'm in the exact same situation, Bought a Tmobile Z3 through Ebay, didn't know it wasn't possible to unlocking it by buying an unlock code... so I did, now I have the phone and the unlocking code for nothing... some help here please? thanks in advance.

Lrclaros said:
Hi, I'm in the exact same situation, Bought a Tmobile Z3 through Ebay, didn't know it wasn't possible to unlocking it by buying an unlock code... so I did, now I have the phone and the unlocking code for nothing... some help here please? thanks in advance.
Click to expand...
Click to collapse
Same boat. I bought a brand new one with film on it. But it was a phone only, no box or accessories. IMEI was a separate sticker (4 pieces). I tried to unlock a legal way but T-Mobile rep told me it's not in their system. It has printed T-Mobile logo in the back. I also tried official unlock app without success. They advised me to call Sony directly and ask what carrier it belongs to lol. Great phone, much better battery than G3 but unlocked phone is a must. I decline phones with 2k screens. I can't see no difference between Z3 and G3 screens.

Xperia Z3 D6616 SIM unlock or Custom firmware

hi
i am having my Xperia Z3 D6616 idle for more than 5 months, meaning? its not sim unlocked. actually unable to unlock it. i did not know that t-mob disabled the SIM unlock code pop up in their phones.
i am not in US right now so unable to unlock the phone as i bought from ebay as new. totally fed up with this situation.
i am tried all over the forum and waited log time to get the root, i felt it will be unlocked after then. but unfortunately rooting did not shed any light on unlocking possibility.
so far
1. D6616 cannot be Sim unlocked without Tmob support
2. No custom firmwares.
3. will not boot if international Firmware flashed via flashtool. or flashing pre rooted zips.
4. its known that it the boot loader cannot be unlocked.
i am looking for D6603 firmware ported to D6616 so that we can flash into recovery and get the sim unlock code Pop up to Enter the unlock code.
or anyway how to port the simunlock app from international D6603 FW to make it work on D6616.
I saw and tried HTC one M9 T mob sim unlocking method and it worked on HTC one M9. (the link is below) is it possible can we follow the same method to unlock the D6616 also.
looks like T-Mob disable sim unlock pop up in their phone to restrict the user to unlock as they wish.
link : http://forum.xda-developers.com/one-m9/general/sim-unlock-method-t3143333
i request some developer help how to get this done. i believe they are so generous and helpful. at least some guides on how to make it.

idumbakumar said:
hi
i am having my Xperia Z3 D6616 idle for more than 5 months, meaning? its not sim unlocked. actually unable to unlock it. i did not know that t-mob disabled the SIM unlock code pop up in their phones.
i am not in US right now so unable to unlock the phone as i bought from ebay as new. totally fed up with this situation.
i am tried all over the forum and waited log time to get the root, i felt it will be unlocked after then. but unfortunately rooting did not shed any light on unlocking possibility.
so far
1. D6616 cannot be Sim unlocked without Tmob support
2. No custom firmwares.
3. will not boot if international Firmware flashed via flashtool. or flashing pre rooted zips.
4. its known that it the boot loader cannot be unlocked.
i am looking for D6603 firmware ported to D6616 so that we can flash into recovery and get the sim unlock code Pop up to Enter the unlock code.
or anyway how to port the simunlock app from international D6603 FW to make it work on D6616.
I saw and tried HTC one M9 T mob sim unlocking method and it worked on HTC one M9. (the link is below) is it possible can we follow the same method to unlock the D6616 also.
looks like T-Mob disable sim unlock pop up in their phone to restrict the user to unlock as they wish.
link : http://forum.xda-developers.com/one-m9/general/sim-unlock-method-t3143333
i request some developer help how to get this done. i believe they are so generous and helpful. at least some guides on how to make it.
Click to expand...
Click to collapse
I would also really appreciate help with this issue
Sent from my C6603 using XDA Free mobile app

so No help or support from members?
i am going to try this option
http://www.ebay.com/itm/321828564320?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
this is the cheapest i found
but as of now they are telling the server is down. have to wait until the service is up.

idumbakumar said:
so No help or support from members?
i am going to try this option
http://www.ebay.com/itm/321828564320?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
this is the cheapest i found
but as of now they are telling the server is down. have to wait until the service is up.
Click to expand...
Click to collapse
I'm facing the same problem, all servers are down indefinitely. One guy also found if your phone never were used or registered in T-mobile network, can't be registered as elegible to unlock, this is my worst problem, I'm outside of USA with brand new expensive phone . If some one found any other solution to unlock, I'll appreciate the information

Unlock service is up.
Now we can unlock xperia Z3 with t mobile app,
The service is up. I bought the unlock service from cellphoneunlock.net
This service cost 50$, but this is the only option for D6616. Time will 3-6 days. I unlocked two of my D6616 after years

idumbakumar said:
Now we can unlock xperia Z3 with t mobile app,
The service is up. I bought the unlock service from cellphoneunlock.net
This service cost 50$, but this is the only option for D6616. Time will 3-6 days. I unlocked two of my D6616 after years
Click to expand...
Click to collapse
not that I believe in pay for those type of services. but I have a z3v and am in a similar position. I was wondering if you could check if your bootloader unlockable status has changed from no to yes or how can u flash stock z3 firmware with only a sim unlock.

Tigerhoods said:
not that I believe in pay for those type of services. but I have a z3v and am in a similar position. I was wondering if you could check if your bootloader unlockable status has changed from no to yes or how can u flash stock z3 firmware with only a sim unlock.
Click to expand...
Click to collapse
This has nothing to do with the bootloader, it is for unlocking the sim only. The z3v is alread SIM unlocked, but, like the T-Mobile d6616, the bootloader is locked and likely to stay that way.

Network locked sim card inserted

My sister presented me this galaxy s6 phone from malaysia. I am from India when i inserted india sim card. I got the message network locked sim card inserted. I came to know from the internet all samsung phones are network locked, for that I have to make incomming or outgoing call for 5 mins. I inserted malaysia sim and (from india) made 3mins of call to malaysia and 2+ mins of call to my mobile in india. Inspite of this my mobile is not unlocked it is still locked. Please help me.
If i flash stock firmware from india will my s6 be automatically unlocked ??, without any side effects.
In internet I saw there are many sites which says they can provide unlock code but their charge is very high almost 50 USD. I have already spent almost 100RM for roaming calls. Please help in unlocking my phone.

Inserting the malaysia sim card will not work as the call has to be made through the network of the region the phone was bought. Using the malaysian sim in india is not enough as the call is still going through the indian phone network.

I already made a 3 mins call to Malaysia . Will it unlock if I ask to someone from Malaysia to make another 2 mins of call to me.

Only way to unlock a network locked S6 is to get the unlock code from your network or buy it online from reputable unlockers. Flashing ROMs will no remove the lock.

Suggest some reputable unlockers
roydok said:
Only way to unlock a network locked S6 is to get the unlock code from your network or buy it online from reputable unlockers. Flashing ROMs will no remove the lock.
Click to expand...
Click to collapse
Can you please suggest me some reputable unlockers. After unlocking will i be able to original stock firmware / custom roms without getting unclocked.

reputable cheap unlockers
srahulmca said:
Can you please suggest me some reputable unlockers. After unlocking will i be able to original stock firmware / custom roms without getting unclocked.
Click to expand...
Click to collapse
reputable cheap unlockers

The problem you may have here is unlocking services unlock the phone from a specific carrier. The region lock is not the same as the carrier lock that these companies provide a service for. A quick look on google brings up no results for region unlocking. At the minute your only course of action is take the phone to a samsung repair centre and hope they will remove the region lock for you.

I took my phone to local mobile service center and he unlocked my phone (dont know how he did) and my phone is now rooted. Now my question is, is the unclock permanent and can i flash stock firmware safely without getting locked again.

Please confirm
srahulmca said:
I took my phone to local mobile service center and he unlocked my phone (dont know how he did) and my phone is now rooted. Now my question is, is the unclock permanent and can i flash stock firmware safely without getting locked again.
Click to expand...
Click to collapse
Can someone please confirm this.

Sim Unlock is needed once in a lifetime and it`s irreversible. Anyway I don't understand why was needed to root your phone for sim unlock. Normally you can reset, flash anything now and your phone will be sim unlocked.

What do you mean by reset ? we cannot remove the lock by flashing a new ROM.

why dose it come up restart phone when i swich sim cards on my unlocked galaxy s6 eage and dose this lose all othe data and save picuters and contects

Please i do also have S6 brought from USA to Ghana and when i tried put on a sim, it said Network locked sim. please what should i do?

ATT sim lock problem

Actually have ATT A9(CID is BS-US001) with unlocked bootloader , root and s-off. after flashing unlocked ROM 1.57.617.52 still ask me for unlock code when i insert anouther sim. with ATT sim work properly. never see that before. Need your ideas. in getprop [gsm.network.type]: [Unknown]. so may be need to cnange gsm.version.baseband????
Thank in advise!

You have to get an unlock code from AT&T and unlock it yourself. Flashing a rom isn't going to sim unlock your phone.

creusset said:
You have to get an unlock code from AT&T and unlock it yourself. Flashing a rom isn't going to sim unlock your phone.
Click to expand...
Click to collapse
Is unlocked ROM means unlocked GSM like Google play edition for M7? wich one ROM give me unlocked (sim free) phone?

UAALEX said:
Is unlocked ROM means unlocked GSM like Google play edition for M7? wich one ROM give me unlocked (sim free) phone?
Click to expand...
Click to collapse
There's no rom that unlocks your phone. Call att and request an unlock code.

creusset said:
There's no rom that unlocks your phone. Call att and request an unlock code.
Click to expand...
Click to collapse
i have an unlock code but...... the phone not accepted it. may be need brick it totally and then flash it. i am s-off.

Ahhh I thought you were trying to unlock the phone by flashing a rom lol. All you need to do is go back to any stock rom you want and then put the non ATT Sim in, use the unlock code, and then flash whatever other rom you want