Sim unlock rooted Galaxy s4 - Galaxy S 4 Q&A, Help & Troubleshooting

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.

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Unlock Samsung S4 i337 without SIM

Hello guys,
newbie here, just got the s4... The S4 is locked to AT&T and i am on ROGERS (canada) however I do not have the AT&T sim, what is the procedure i need to follow to unlock this phone. Do i need to purchase a unlock code or is there a free method available?
Thanks guy
I switched over from a blackberry z10, that phone was like a iphone3 compared to this s4
Please read forum rules before posting
Questions and Help issues go in Q&A and Help section
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Also this is not the I337 section. I will move you to the correct device as well
If you put a att sim card it will just work so no need for unlocking, but if you put a Rogers sim card then the the phone will ask for a unlock code
Sent from my Ssamsung Galaxy s4
beginner09 said:
Hello guys,
newbie here, just got the s4... The S4 is locked to AT&T and i am on ROGERS (canada) however I do not have the AT&T sim, what is the procedure i need to follow to unlock this phone. Do i need to purchase a unlock code or is there a free method available?
Thanks guy
I switched over from a blackberry z10, that phone was like a iphone3 compared to this s4
Click to expand...
Click to collapse
You could try this unlock method posted earlier.
http://forum.xda-developers.com/showthread.php?p=41585780
I need help to unlock sim carrier on i337M
Hey maybe you could help. I tried everything. I downlaod the Odin, CF file and root the phone. also try to figure out and unlock my samsung S4, but it still locked and ask for code. I also got the REgionLock away app and it does'nt work. Well it does but at the end my phone still locked by the carrier : BELL Mobility
My mom gave me this phone as a gift and I want to use it with my actual carrier ''FIDO''... I do not want to paid 50$ for that..
Is there any way that i could get a code or unlock the pĥone?
What rom is on the bell phone? Did you downgrade the modem before running regionlockaway?
what is a rom?
What do you mean by rom and downgrading the phone? I got the lollipop version 5. 1. 0.
Model SGH i337m. I tried most everthing including dialing codes (*#0011* follow step by step).. but its not working. Each time i put the sim card from my carrier (Fido) it asked for a code to unlock the phone. Im not an expert in that kind of stuff either but i tried to get my phone unlock whithout paying if i can. Could you helped me? Did you need my IEMI number?
http://forum.xda-developers.com/showpost.php?p=66051022&postcount=726

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

Locked vs Unlocked Bootloader ?

Hi all,
is there any advantages of having a unlocked bootloader over a locked.
Ive had my samsung s4 9505 since launch and i have never upgraded the bootloader. Ive only ever upgraded the gsm modem.
as development has come a long way since launch is there any benefits of having a unlocked bootloader ?
Many thanks
On a galaxy phone you don't have locked/unlocked bootloaders
minidude2012 said:
On a galaxy phone you don't have locked/unlocked bootloaders
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Click to collapse
I wish that were true. My bootloader got locked by the 4.3 update, which came through as i was setting up my phone when i first brought it.
Didn't find out about it till i accessed the forums later the same day.
anoniemouse said:
I wish that were true. My bootloader got locked by the 4.3 update, which came through as i was setting up my phone when i first brought it.
Didn't find out about it till i accessed the forums later the same day.
Click to expand...
Click to collapse
I don't know then as I've had a galaxy s4 since first came out and the galaxy s4 has never had a locked bootloader
The I9500 and I9505 shouldn't have a locked bootloader. Galaxy S4 devices for AT&T and Verizon in the United States however DO lock their bootloaders. Locking, or more accurately, encrypting the bootloader, makes it extremely difficult if not nearly impossible to load custom ROMs. Which is why you don't want one if you can help it.
In the Q&A forum there is a thread where a forum member describes purchasing what was supposed to be an I9505 off eBay. Through some detective work it was discovered that his device was a Frankenstein, in that it had the IMEI of an I9505 but the motherboard and the other components were from an AT&T SGH-I337. Thus, his "I9505" had a locked bootloader. At last report he was going to contact the seller about this. I thought about offering him a straight up swap, since he needed an I9505 and I could use his phone here in the US and get LTE, but the fact the IMEI is not what originally came with the hardware has me pausing.
If you have an I9505 and a locked bootloader, your phone may have been "refurbished" in this manner by a third party. It might be a good idea to check your phone and see what you have.

Question about S5 (T-mobile) and unlocking sim/bootloader/running cm12

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.

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

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