possible to unlock i9505 on ee via changing cfw ? btu uk - Galaxy S 4 Q&A, Help & Troubleshooting

i all to everyone don't know if this is correct in putting this post here . I have a Samsung galaxy s4 i9505 locked to ee tried a ×#0011#. And tried the long number to enter service mode. I can change it to 1. But I don't get the other menu to pop up. I've had an idea. I have tried looking for this method and I'm 50/50 weather it will work or not. As this as phone has got ee branded phone. If I installed a custom firmware btu version black edition . What the chances of unlocking it via the method above or would this phone still know in it a ee phone what are your thoughts regards James. I don't want to root the phone. I'm quite happy to put a btu black edition on the phone . I have used odin in the past on my old i9505 but that phone was already unlocked

Changing firmware will not unlock the phone. To get the proper menu to appear you have to downgrade the modem (or firmware) to Android 4.2.2, then use the service menu. If the service menu does not work, your only other alternative is to root while the modem is downgraded and run RegionLock Away.

Strephon Alkhalikoi said:
Changing firmware will not unlock the phone. To get the proper menu to appear you have to downgrade the modem (or firmware) to Android 4.2.2, then use the service menu. If the service menu does not work, your only other alternative is to root while the modem is downgraded and run RegionLock Away.
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Click to collapse
Many thanks for your reply. So if I down grade my firmware to 4.2.2 btu so I can enter the service menu . Are you saying this mite work 50/50

I did the downgrade myself when I lost my SIM unlock. The service menu worked but I messed up somewhere and failed to unlock. RegionLock Away worked perfectly.

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diesalweasel said:
i all to everyone don't know if this is correct in putting this post here . I have a Samsung galaxy s4 i9505 locked to ee tried a ×#0011#. And tried the long number to enter service mode. I can change it to 1. But I don't get the other menu to pop up. I've had an idea. I have tried looking for this method and I'm 50/50 weather it will work or not. As this as phone has got ee branded phone. If I installed a custom firmware btu version black edition . What the chances of unlocking it via the method above or would this phone still know in it a ee phone what are your thoughts regards James. I don't want to root the phone. I'm quite happy to put a btu black edition on the phone . I have used odin in the past on my old i9505 but that phone was already unlocked
Click to expand...
Click to collapse
Dont know if this will help you but after *#0011# press back then key input and type Q0 instead of 1. wait a few seconds and should take you to the menu.

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''not registered on network'' error please help!!!

ok straight of the bat im a total noob with odin alll android firmwares and phones etc.
much to your displeasure i am an apple fanboy... but i really need your help guys!
my situation is as follows: i bought a samsung galaxy s4 relatively cheap of an aquaintance, i used a link on a forum here to see if it was blacklisted and results say it wasnt, i bought an unlock code and it worked ''network unlock sucessful'' YAY... then i try and call the number and after a while im redirected to 02 messaging service. next i try to dial out and i get hit with the not registered on network error. now funny enough i get a warning triangle saying no service yet i get service bars and even 3g; also when i select a network manually and choose 02 it says registered.it also says emergency calls only.
basically i need your guys advice and solutions...
why it may be this way: well as soon as i got i rooted it and it worked i believe this was on 4.3, pretty much as soon as i had done this it was throwing this error at me, after a long time i came back to it and researched more into this golden restore, and the phone was locked to ee now there modem doesnt allow access to the service menu so i changed my modem, when flashing on odin i have tried pda and phone,,,(idek what im doing) i have a GT-I9505 on rooted 4.3 (not sure which root) with baseband: I9505XXUEMK8 and a build number:JSS15J.I9505XXUEMJ8
basically im asking one of you guys how do i reset this to stock 4.3 by flashing with odin, its originally locked to ee but now its been unlocked so can i use btu not ee files? have any of you had this problem and how did you overcome it?

[Q] gt-19505 no sim problem

hi everyone n thanks in advance for any help.
just purchased a s4 on uk o2 network details are as follows
model number -GT-I19505
android version - 4.4.2
baseband version - 19505xxuame2(flashed to access service menu)
kernel version - 3.4.0-481100 [email protected]#1
build number - KOT49H.19505xxufnb8
SE for android status - enforcing sepf_gt-19505_4.4.2_4
secure boot status - type:samsung
security software version - mdf v1.0 release 2
ok so i used the cf - auto root tool with odin 3.7
then flashed modem me2 to access the service menu and set network perso sha256 to off
then nv rebuild but it says there no golden back up,
also before at one point there was a golden back up so i selected option 4 to restore but after all that it still says no sim and the icon is in the top corner, i want to use my ee sim but this has been baffling me for ages and im at the point of having to pay someone to do it, (im scottish n were renown for being tight ) any one any help is greatly appreciated, thank you
- Service menu only works in android 4.2.2.
- You have to pay for unlock by IMEI your phone using android 4.4.2.
- You void ur warranty (KNOX: 0x1) trying to downgrade ur baseband.
*SOLUTION:
1- Reflash ur firmware till you have correct baseband.
2- Buy a unlock CODE by IMEI.
3- Unlock ur phone and you will be happy using ur EE Sim Card.
Joku1981 said:
- Service menu only works in android 4.2.2.
- You have to pay for unlock by IMEI your phone using android 4.4.2.
- You void ur warranty (KNOX: 0x1) trying to downgrade ur baseband.
*SOLUTION:
1- Reflash ur firmware till you have correct baseband.
2- Buy a unlock CODE by IMEI.
3- Unlock ur phone and you will be happy using ur EE Sim Card.
Click to expand...
Click to collapse
right if i get an unlock code how do you enter it as ive never had the network pin request come up, also ive unlocked the phone which is why my baseband version is different, knox can be reset too. ive put in different sims but the EE sim keeps coming up no sim.
thanks for reply
heres an update my partners s4 is unlocked and has same firmware and is still on stock so i flashed my s4 with stock firmware so all matched her phone but yet mine still want acknowledge my sim although her phone does........ about to throw this phone... so frustrating. anyone any sugestions

[Q] Galaxy S4 SGH i337m Sim/Network Unlock Help

Ok, I'm going to try to make a long story short, i hope that i've posted in the correct forum, I've been scouring this forum and others but nothing I've found has quite fixed my issue.
Got my S4 locked to Bell in Canada. Heard it was really easy to unlock [service menu *#0011# method] but once I got to Indonesia [for travel] expecting to be able to use my phone I found that the service menu was no longer available. Ok, no problem, there must be other ways;
I ended up paying for an unlock code from a site, it didn't work. In fact, immediately after I press 'unlock' it would say 'network unlock unsuccessful'.
I thought they gave me a faulty code but when the code I bought FROM Bell was the exact same one, and had the exact same problem I figured it was likely 'region locked'
I ended up flashing a stock rom with odin, one from a weird unlocking site, and eventually I got it working. The only problem was that whenever I'd go into screen lock I'd lose reception and have to airplane mode on and off to get it again.
After Indonesia I went to Turkey, was unable to connect at all with one of their service providers, but had no problems with Vodafone. I think this may have been a side effect of regionlock away app, I needed to use that as well.
Once I got back to Canada I went custom recovery with cwm and flashed Cyanogenmod. This was fine, no reception problems, 10.2 - 11 was all good.
NOW I am in Poland, and getting the same problem I had in the first place. Whatever Cyanogenmod did, re-locked my device, in some way, I'm guessing.
I'm now rooted, with TWP recovery, running Android 4.4.4 Dave GPE rom, and would REALLY like to be able to use my Polish sim card with this fantastic setup. Chainfire's regionlock away app does not work, gives me a CSC error message. My phone now says it's an i9505 instead of i337m
Anything I have overlooked? Any way I can get this fully unlocked and working the way I want it to?
*NOTE* I can't access *#0011# service menu, even though I flashed [i think] stock dialer.
You are not in the correct section
You need to be in this section.
http://forum.xda-developers.com/galaxy-s4-att/general
I can help you a little though. If the unlocking methodes fail, then it's usually because you don't have an older modem. You need to look for the modem you should flash in order for it to work. Afterwards you can flash the modem again you are on now. If you can't find it, just flash an old modem and try.
I find it hard to believe that Cyanogenmod could have caused this though.
Cool, that will be my next phase of attack. I appreciate the redirect and thoughts (Y)

Why can't my S4 dial codes?

I'm trying to try some methods to unlock my AT&T S4. I'm still on MDL firmware, it is rooted but I never unlocked it and now I really want to because I just came back from an overseas trip and didn't have use of my phone. However, all the methods require I be able to dial or enter into some kind of service mode like *#9090# or *#0011#. However after I hit the last # nothing happens, I hit the Call button and I see a USSD Code Runnning then 'Connection problem or invalid MMI'. I can't get anywhere without being able to enter into any of the service menus. Can anyone tell me why or how I can fix this?
Also, I wouldn't be opposed to updating to the latest firmware through AT&T (I disabled the OTA update pushing thing long ago) and then rooting and unlocking with the latest methods. Is this possible right now? But I still need to get the dialing code issue fixed I believe. I would still need to be able to crack through the AT&T wifi tethering feature in the phone which I have right now on MDL, its very important to me. If it can't be done on the latest firmware then I'll just have to wait another 6 months for my contract is up then AT&T will give me the sim unlock code.
Please Help!
Oh, and I just remembered AT&T actually provided me with a sim network unlock code which I didn't try to enter until I was overseas, about a year had passed already. The code didn't work and I actually found that it was just my IMEI#. I'm assuming that was never going to work anyways and whoever gave me that was just messing with me?
You can try flashing the MF3 modem through recovery and then running regionlockaway app. If that doesn't work, you can flash the stock MDL firmware using Odin. The firmware can be downloaded from sammobile site.
Doesn't your phone ask for a unlock code when you insert a different SIM card?
jmjoyas said:
You can try flashing the MF3 modem through recovery and then running regionlockaway app. If that doesn't work, you can flash the stock MDL firmware using Odin. The firmware can be downloaded from sammobile site.
Click to expand...
Click to collapse
If I do this then will I lose root? If so will I be able to recover it?
abhishek1234321 said:
Doesn't your phone ask for a unlock code when you insert a different SIM card?
Click to expand...
Click to collapse
Yes it does, but AT&T won't give me a code.
ChuckWow550 said:
If I do this then will I lose root? If so will I be able to recover it?
Yes it does, but AT&T won't give me a code.
Click to expand...
Click to collapse
Flash the modem won't lose root. If you use Odin you will have root afterwards
Sent from my Nexus 9 using XDA Free mobile app

[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
The service menu unlocking method was patched in 4.3 and later, thus it's no surprise that you have no menu.
Given you upgraded to lollipop, your option is to purchase an unlock code online and hope it works.
You can go back to ROM 4.2 and redo the *#0011#, or if I'm not mistaken, the patch is in the modem, not the ROM itself, so try to flash the "early" modem (ex : I9505XXUAMDN) that you can find here : http://forum.xda-developers.com/showthread.php?p=39176955#post39176955 and then do the *#0011#
Another method that could work (if the *#0011# failed) : use RegionLock Away (http://forum.xda-developers.com/showthread.php?t=2470551), also with 4.2 ROM (or ealry modem), you need to root to use this app.
The thing about RegionLock Away and the service menu unlocking methods is that neither is guaranteed to stick if you upgrade. At least if he pays for the code he's unlikely to ever have to worry about it again. That said, I've recommended RegionLock Away in the past, when Android 5.0.1 was not yet out. With that version now available I'm holding off. I'm concerned that Samsung changed the modem in such a way as to guarantee restoring the lock on an upgrade. Perhaps the OP could serve as a test case.
I'm using a "modified" modem using RegionLock Away and can confirm that it works well after upgrade to Lollipop but as I said, RegionLock Away only works with "early" modem, one must first reflash the old modem, patch with RegionLock Away, and then can freely upgrade modem & ROM, the unlock will stay ^^

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