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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

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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

[Q] Help to SIM Unlock My Galaxy S4!

HI everyone, i recently bought a Galaxy S4 thinking it was unlocked but found out it was locked to wind.
is their any way to sim unlock it for free without buying unlock codes?
Any help would be appreciated .

humzamerz said:
HI everyone, i recently bought a Galaxy S4 thinking it was unlocked but found out it was locked to wind.
is their any way to sim unlock it for free without buying unlock codes?
Any help would be appreciated .
Click to expand...
Click to collapse
Please post the result of dialling *#1234#

Take a look in General Section
You will find a guide on how to sim unlock your phone
But I think you need to downgrade to 4.2.2
And there is a guide on how to downgrade to 4.2.2 if your phone is i9500

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

[Q] any easy way to SIM unlock a GT-I9500 ?

Hi guys,
I read a couple of threads and tried a couple of things and didn't work... Im trying to sim unlock my Galaxy S4 GT I9500 on stock android 4.3 not rooted and is not working.
I read about a code using *#0011# code and didn't work.. Post was not specific about using no sim, original carrier sim or desire carrier sim.. anyway I tried all and was a failure.
I read another thread about flashing a modem and downgrading the firmware but wasnt specific enough about how to do it and the requirements (android version, rooted?, how to do it, etc)
I try one of those "code pages" and even they couldnt help me. My carrier is Movistar in Nicaragua.
Is there is any easy way to SIM unlock my phone? maybe by just installing a pre-rooted, pre-unlocked rom? or is there is a page/guide/video with specific instruction on how to do it?
thanks in advance.

I think the step by step instructions on SIM unlocking in the main thread on the topic are pretty specific. They don't mention downgrading the device modem through Odin however because they were written before Samsung patched the exploits that allowed the SIM unlock to work.
Downgrading the modem to an Android 4.2.2 version in the AP/PDA slot in Odin is necessary to run either unlock metbod. However, you can really mess things up trying to unlock if you aren't careful, especially with the service menu exploit.

[Q] sim network unlock pin dismiss galaxy s4

Hi, i am new one to xda ..
I have a Galaxy s4 I9505 with "sim network unlock pin dismiss" Unlocking Problem.
i install Android lollipop(UK) rom to s4. before install lollipop i had this problem'
I tired trying carrier Unlock Methord [*0011#]. but it dosnt work for me. That menu isnt work in my device.
I am from sri lanka. in Asia. How can i fix this. Waiting for replies. thanx

Discussed ad nauseam. Downgrading the modem or ROM to Android 4.2.2 is required in order for the unlock methods discussed on the forums to work. You could also simply purchase an unlock code.