Question about S5 (T-mobile) and unlocking sim/bootloader/running cm12 - Galaxy S 5 Q&A, Help & Troubleshooting

First off, sorry for the confusing thread title.
I'm currently running an AT&T Note 3 which has a locked bootloader and I've wanted to run CyanogenMod for a while now. I've ordered a second hand T-Mobile Galaxy S5 because I've heard the bootloader is unlocked and/or unlockable.
Can anyone here clarify how the sim lock/carrier lock works?
Will this require me to purchase an unlock code or will flashing the bootloader and custom firmware automatically unlock the sim? From my research I've read that I still need to unlock the sim, but I've also read that using a different bootloader can unlock it. Kind of confusing.

Related

[Q] Unlocked bootloader?

I have read that all Note 3 have locked boot loader. If I purchased an unlocked Note 3 from i.e. Negri Electronics, would these come with an unlocked boot loader?
Are there any reseller that sells a Note 3 that is has both sim and boot loader unlocked?
Samsung does not sell locked bootloader like HTC
sim locked is something else, and yes u can buy ig sim free (unlocked) or just buy the unlock code
Only Verizon and ATT have locked bootloader I think, as post above states, all are unlocked by default.
AT&T's Note 3 bootloader is locked, Verizon's is too, but Verizon does offer developer edition, which has unlocked bootloader. T-Mobile's Note 3 bootloader is not locked. I'm not sure about Sprint, but you dont want to be Sprint customer anyway.
Disregard posts from people, who don't understand the difference between locked bootloader and network carrier lock and make posts about unlocking and unlock codes.

Rooted s5- unlocking ?

Hi,
I just got Galaxy S5 900F locked to vodafone uk. I found a tutorial called UNLOCK, flash and root your s5 4.4.2. It was actually comming from this website. I rooted it but it is still locked. I think rooting didn't really unlock my phone(as tutorial said) as it wants me to type the sim code in. Is there any way to unlock it free? If it isn't whats the cheappest way? Thanks

Samsung Galaxy S4 Unlock

Hi,
I have a Samsung Galaxy S4 Att with Android 5.0.1. I requested unlock code from att and the code they gave me is not working.
Can some one help me with unlocking the device.
Thanks,
Sravan.
I haven't seen anything about unlocking an S4 running 5.0.1, but you can flash the phone back to nb1 base and unlock it. Then when you flash back to 5.0.1 the unlock should stick. See this thread on unlocking, for instance. See this or this for flashing back to 5.0.1.
Disclaimer: I do not own an S4 so can not test this.
You may be able to find more information in the forum here if you search.
First of all I can't believe AT&T actually gave you an unlock code that's amazing the best bet to sim unlock your phone is to downgrade your modem then use region lock away then upgrade your modem again then boomshockalocka you will have a sim unlocked device
Sent from my i337 on dark carnage rom

Sim unlock rooted Galaxy s4

I have a rooted Samsung Galaxy S4 i337m Canadian locked to Bell. Is there something I can do on this rooted device to sim unlock it?
There is an entire thread on SIM unlocking in General. Two methods are described there, but if neither appeals to you, there is always paying for the unlock code.

Will my note 3 be sim locked again?

I have a note 3 with stock lollipop rom model n900w8 which is the canadian note 3 version. I just want to know if it will be sim locked again if I installed a custom rom like magma or darklord?
PS. I don't know if it was sim locked before, I just got it sim unlocked already.
Additional question: can I just go back to stock kitkat from stock lollipop without rooting?
How was it sim unlocked? With an unlock code, the phone should be permanently unlocked regardless of flashing a custom ROM or upgrading bootloaders and modems.
audit13 said:
How was it sim unlocked? With an unlock code, the phone should be permanently unlocked regardless of flashing a custom ROM or upgrading bootloaders and modems.
Click to expand...
Click to collapse
I don't know how it was unlocked. I just got it unlockef already.
poqi_ako said:
I don't know how it was unlocked. I just got it unlockef already.
Click to expand...
Click to collapse
Most likely it will never re-lock itself
Every phone that I got from a carrier and subsequently unlocked via code, including the n900w8, or a free method (i.e. Samsung note 2, s3, s4) has never relocked after flashing a stock or custom ROM.

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