I was reading this thread about how to install Stock ROMs in the Lumia phones.
The process seems pretty easy. But since I'm a lurker the system did not allow me to make my question there. So here it goes.
If the phone was from a carrier, say AT&T, and it was unlocked by them to be used in any network, will the installation of a stock ROM:
1) Keep the phone unlocked because, DUH! is stock firmware
2) Keep the phone unlocked because it was unlocked before
3) Lock the phone again because some setting is lost
So, any idea about this? The installation of a stock ROM would be a solution to unlock a Lumia phone?
No. To SIM unlock one the only way is to enter the code given from the MO that branded the device. Now... if the device has been previously been unlocked, it will persist flashing because the cellular settings are untouched when flashing. (Unless its stuff relating to the MMS and internet APNs, that will be overwritten when it is reflashed.)
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Hey, I've been trying for a few hours now to unlock my X8. The last method I tried, which I found on this forum, was simply unlocking the bootloader via flashtool, which was said to be able to unlock sims. However, I can't connect to a network using my second sim card, as before: nothing's changed.
My phone is rooted, it's a 10 model (so no danger, seemingly), and I've downloaded Omnia but that'll cost me almost 20 to get an unlock, so I'd prefer to do it myself if at all possible. Cheers.
EDIT:
After searching more topics, I've heard mixed things about unlocking - some say it's impossible for free, some say it can be done if I flash a new ROM, others say what I've already done should be enough (and it clearly isn't). Can anyone confirm/deny that flashing a custom ROM could unlock my phone?
In an attempt to use my locked AT&T HTC One phone on my T-mobile service I used the Cyanogenmod Installer to root my HTC one and hope to use it on the T-mobile network; I also unlocked the bootloader via HTC website. The newest Cyanogenmod is installed (11-20140417-NIGHTLY-m7) and wifi is working, etc. Unfortunately, no phone calls since it keeps asking for SIM Network unlock code (I bought an unlock code...not working). Any suggestions? What should I do? I did some research and I read something about using an RUU...is this a good solution? Thank you all!
Status of phone on bootloader screen is:
S-ON "TAMPERED"
scope213 said:
In an attempt to use my locked AT&T HTC One phone on my T-mobile service I used the Cyanogenmod Installer to root my HTC one and hope to use it on the T-mobile network; I also unlocked the bootloader via HTC website. The newest Cyanogenmod is installed (11-20140417-NIGHTLY-m7) and wifi is working, etc. Unfortunately, no phone calls since it keeps asking for SIM Network unlock code (I bought an unlock code...not working). Any suggestions? What should I do? I did some research and I read something about using an RUU...is this a good solution? Thank you all!
Status of phone on bootloader screen is:
S-ON "TAMPERED"
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You might find some help here regarding sim unlocking your device http://forum.xda-developers.com/showthread.php?t=2314824&page=60
gffmac said:
You might find some help here regarding sim unlocking your device http://forum.xda-developers.com/showthread.php?t=2314824&page=60
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No luck the phone they're referring to is the HTC Amaze it seems.
Does successfully installing Cyanogenmod "unlock" the network as well??
scope213 said:
Does successfully installing Cyanogenmod "unlock" the network as well??
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No, bootloader unlock and sim unlock are different things. You'll need to be on the stock rom to input your sim unlock code.
cschmitt said:
No, bootloader unlock and sim unlock are different things. You'll need to be on the stock rom to input your sim unlock code.
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And that's what worked. Thanks!
Hello,
I (still) have the same problem here. I have a DHD that was locked and branded. I followed HTCDev's procedure to unlock the bootloader and installed a Cyanogenmod ROM (unofficial 10.1) two weeks ago that works great. I've been trying to get my phone unlocked for days with no luck ever since.
I've tried using the HTC unlock tool v. 0.9.5/4 and rooting the phone too. Nothing. Drivers are working fine; program executes as expected, but I still have a locked phone after it finishes. I got an unlock code that I enter after booting and I get a "successful network unlock" message, but the radio seems to remain off. I cannot place calls. Attempting to choose a network operator manually from the settings menu fails; I get a "mobile network unavailable" message when doing so (service providers list does not even appear). I've read threads saying that the only way to get around this is by reverting the phone to its original ROM and HBoot, but I've read elsewhere that workarounds on branded phones shipped with Gingerbread or Froyo (like mine used to run) fail and/or screw up the phone, so I have not tried that. Any ideas or pointers?
Thanks!
Does Permanent unlock mean permanent? Or is it something you can lose with a firmware update, factory reset, or user modification?
How does the device unlock? Is it unlocked by hardware like a knox trip? Is it from the carrier? Could it ever be re-locked?
Basically I bought my S6 from T-Mobile with the full intention of cancelling the service once I fully payed it off. $860 later, I made my final payment a week ago. I put in an ATT sim card, tried unlocking, nothing happened. Put my T-mo sim back in, did unlocking just to try it again, and it says my device is permanently unlocked.
I just want to know how permanent is permanent, and is it safe to cancel my service with T-Mo, and could the phone ever be re-locked by means of factory reset or by any change in the software?
Also my T-mo account balance is -$60, I don't fully know what that means, but it appears that they owe me $60. If I cancel, is a negative amount refunded?
It's supposed to be permanent. But T-Mo's custom device unlock is bugged. I permanently unlocked mine a few days ago and switched back to AT&T. Last night I started getting an invalid sim inserted message with my AT&T sim in it! So much for permanent unlock!!!
All I could think of doing to make sure it's permanent this time around is to Odin back to the stock MetroPCS rom so I could use their radio and unlock it the old fashioned way. Works fine with AT&T now. I just have to stick with the MetroPCS radio, or it will become locked again!
Question
guyd said:
It's supposed to be permanent. But T-Mo's custom device unlock is bugged. I permanently unlocked mine a few days ago and switched back to AT&T. Last night I started getting an invalid sim inserted message with my AT&T sim in it! So much for permanent unlock!!!
All I could think of doing to make sure it's permanent this time around is to Odin back to the stock MetroPCS rom so I could use their radio and unlock it the old fashioned way. Works fine with AT&T now. I just have to stick with the MetroPCS radio, or it will become locked again!
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I've been away from android for a short time and now back on T-Mobile S6. I bought it outright from T-Mobile and haven't even had it three days yet but service is terrible. Is there a guide for exactly how to use the PCS firmware and then get root and twrp? How and where did you get the unlock code also? You said I need to stay on PCS? What if I flashed a T-Mobile custom rom off xda development site? Thanks, I'm just a little rusty and don't want to mess up my new phone. LOL.
brojoe11 said:
I've been away from android for a short time and now back on T-Mobile S6. I bought it outright from T-Mobile and haven't even had it three days yet but service is terrible. Is there a guide for exactly how to use the PCS firmware and then get root and twrp? How and where did you get the unlock code also? You said I need to stay on PCS? What if I flashed a T-Mobile custom rom off xda development site? Thanks, I'm just a little rusty and don't want to mess up my new phone. LOL.
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There is a guide somewhere. I read it a couple of weeks back, so I knew what to do to Odin flash the Metro rom and use the regular sim unlock method. You can flash any compatible rom with your device. You just can't flash the T-Mobile radio, or you'll loose the SIM Unlock! The radio firmware is never part of a custom rom, so no need to worry there.
I bought the unlock code from androidsimunlock.com and told them it was a MetroPCS Galaxy S6. Worked perfectly.
Thanks. I'll do some more searching.
So the unlock is in software only?
Hi All -
I've searched everywhere for the answer to this and haven't been able to find it, so I figured I'd post here. This is the scenario:
1) I have a Moto X that is locked to AT&T
2) I wanted to give the phone to a friend who is on Sprint, so I paid for an unlock code
3) Even after unlocking and inserting the Sprint SIM, I still received the "SIM Network Unlock PIN" message
4) I now want to basically restore the phone completely back to the way it was (locked to AT&T), so it can be used with an AT&T SIM
5) I flashed the phone using RSDLite and the correct ATT ROM, but after the flash finished successfully and I insert a valid AT&T SIM, I still receive the same unlock message.
So my question is basically, can I get the phone completely back to being locked to AT&T, essentially the way it was out of the box? I'm also willing to flash it with Cyanogen or another ROM if that would help.
Any help is greatly appreciated, thanks for your time.
I have same issue, I had my Sim working for a couple of days but I wanted to return to stock to receive further updates and I flashed it with correct at&t firmware package but now there is a popup every time when I insert Sim about unlock code and I am stuck ... I think that's because of erasing modem st1 and modem st2 during flashing with RSDlite ... Is there anybody to suggest something helpful
I received an unlock code from AT&T to unlock my phone for use with other carriers so that I can use it when I travel outside the country. But it's not working for some reason. Here is what happens:
Turn phone off
Take out AT&T SIM card and replace with friend's T-Mobile SIM card
Boot phone completely
Phone automatically prompts me for unlock code which I enter
Phone goes to home screen
Phone prompts me again for unlock code
I tried 3 times and stopped trying because after 5 attempts the phone supposedly permanently locks to the AT&T network.
I AM rooted running CM13. Is that the issue? If so, what do I need to do to get the unlock to work? I tried searching but I'm only seeing results related to unlocking bootloader, etc, not surprisingly haha. Thanks!
Your system must be totally stock to SIM unlock the Nexus. Flash a stock image.
Strephon Alkhalikoi said:
Your system must be totally stock to SIM unlock the Nexus. Flash a stock image.
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Okay to keep bootloader unlocked and keep root? Just need the stock ROM?
And then once I flash stock image and unlock SIM, okay to reflash CM13? And the SIM will remain unlocked?
Thanks again!
I wouldn't bother with root on the stock image since you'll be reinstalling your custom ROM afterward, but you can keep your bootloader unlocked without worry. Once SIM unlocked, the Nexus stays unlocked.