[Q] Network Unlock - Galaxy S 4 Q&A, Help & Troubleshooting

Hi there,
I'm having some trouble trying to unlock my samsung s4 (gt-i9505) and was wondering if anyone knew how to help.
I've tried using the FastGSM samsung client several times but that hasn't worked and then I tried unlocking via IMEI using a network unlock code but it still keeps saying unsuccessful. I've tried restoring the phone and still nothing
I've heard it could have something to do with the NVRAM but for some reason I can't access the main menu of the service mode to try and change anything.
Has anyone else had this problem or know what else I could try? I would appreciate it.
Many thanks.

Related

[Q] WiFi works on secured network, but not on open

Hello!
The flash on the phone is the one before 8107, i cant remember it anymore, i sold it to someone. But now he contacted me and told me it does works on a secured WiFi network, but not on any open network. It still connects, but there is no actual data flow. Is it even possible?
What happened to the phone is i have downgraded it to 7004, used Chevron and updated till 7392 and then installed Hungarian language via root explorer, then kept updating till the one its on at this moment. I must had screw up something, but i have lost unlock, even tho i paid caution to prevent it. So i used windowbreak to re-unlock it. And that's it. What could be the reason? I'm really confused.
P.S: I also used some Samsung Tool or whatever i cant remember anymore to enable Internet Sharing option.
Hello please could someone help me?
Sent from my Galaxy S2 using Tapatalk
BUMP! Pls make some input. No one met this problem?
Im really wondering if none have encountered such problem. Any ideas?

Cannot Unlock Sim Samsung S4 Rogers

Hey Guys,
I have had one heluva time trying to unlock my Rogers Galaxy s4. I purchased an unlock code, which did not work. I tried through service mode. Then I tried flashing the rom to a factory rom, which has now disabled my cellphone reception. At this point I am trying to put the stock rom back just get my phone working. Is there anything else I can do?
FastGSM.com has been the "last resort / saviour" for many here when service menu didnt unlock nor purchased-code.
fastgsm
I also used fastgsm to unlock mu i337m using the usb unlock method
Never try it but it could maybe help you out ;
http://forum.xda-developers.com/showthread.php?t=2285431

[Q] Can't access PhoneUtil

Hello all,
I tried searching the forum and google for this problem but haven't come across anything.
I really hope someone can help me out or I'm gonna have to buy a new phone.
I need to access the PhoneUtil menu by punching in *#7284# so I can continue with this procedure to enable AWS. But the menu is not coming up. I even restored the phone to factory settings but still no menu. USB debugging is enabled.
I followed this procedure when I first got the phone a few months ago and it worked. Now all of a sudden my phone only starts to detect Bell/Rogers network and not Mobilicity. So I'm guessing if I went through this process again it will work...but I can't get phoneUtil to pop up this time.
Any ideas?
Splifff said:
Hello all,
I tried searching the forum and google for this problem but haven't come across anything.
I really hope someone can help me out or I'm gonna have to buy a new phone.
I need to access the PhoneUtil menu by punching in *#7284# so I can continue with this procedure to enable AWS. But the menu is not coming up. I even restored the phone to factory settings but still no menu. USB debugging is enabled.
I followed this procedure when I first got the phone a few months ago and it worked. Now all of a sudden my phone only starts to detect Bell/Rogers network and not Mobilicity. So I'm guessing if I went through this process again it will work...but I can't get phoneUtil to pop up this time.
Any ideas?
Click to expand...
Click to collapse
Do you have an AT&T S4? And, if so, did you take the MF3 firmware update? Because if you do, and you did, you shouldn't have. The only thing you can do with a phone on MF3 is Root. No service menu, no Kies, No ODIN, and no going back.
If this is the case, there is a lot of information about it all throughout the General and Q&A sub forums and this information has been there for a while.
If it isn't the case, maybe you can give a little more information and someone can help you. Good luck.
Splifff said:
Hello all,
I tried searching the forum and google for this problem but haven't come across anything.
I really hope someone can help me out or I'm gonna have to buy a new phone.
I need to access the PhoneUtil menu by punching in *#7284# so I can continue with this procedure to enable AWS. But the menu is not coming up. I even restored the phone to factory settings but still no menu. USB debugging is enabled.
I followed this procedure when I first got the phone a few months ago and it worked. Now all of a sudden my phone only starts to detect Bell/Rogers network and not Mobilicity. So I'm guessing if I went through this process again it will work...but I can't get phoneUtil to pop up this time.
Any ideas?
Click to expand...
Click to collapse
did you install the phone util apk?
Yes I downloaded and installed phoneutil.apk from multiple sources many times, but the menu never shows. It's a Bell S4 not AT&T. Could I have installed the MF3 update even though its a Bell phone?
Not sure how to root but I can search. Will rooting it solve the problem?
If you need any other information let me know.
Splifff said:
Yes I downloaded and installed phoneutil.apk from multiple sources many times, but the menu never shows. It's a Bell S4 not AT&T. Could I have installed the MF3 update even though its a Bell phone?
Not sure how to root but I can search. Will rooting it solve the problem?
If you need any other information let me know.
Click to expand...
Click to collapse
I had the same problem too I think it is becoz of the OTA update..which disables that USSD code...did u find any solution how to solve the issue? I really do not want to root the phone..thank u.

[q] sm-n900w8 not registered on network

Hi Eveyrone,
I bought a SM-N900W8 unlocked from a guy. The phone has NOT REGISTERED ON NETWORK problem. I can see full bar but cannot make any phone call. The seller said he tried to flash cm and somehow screwed it up, so he reset and restore the phone to its original stock android. Right now im trying to make it recognize my sim. Does anyone have a solution for this? Should I root the phone and try region lock/ sim unlock?
Please let me know
Thank you
UPDATE: I still have my IMEI, its is the same as in the box
i have the same problem. Did u manage to get it to work ??

[Q] need help pls

so i had my s4 i9505 rooted recently by a friend all went well was working fine. week later was trying to get it sim free with a few methods including changing baseband, none of them helped the only thing that did happen was my network coverage gone missing so i switch to diff baseband which solved the network coverage issue, but then i got prob with wifi, i cant enable it, everytime i try i get the shield pop up saying that my phone security blocked this action and no further action is needed. tried the installing the wifi fix thingy via odin, tried factory reset via twpr and a diff rom (MIUI), none of these methods helped. any1 got any ideas whats going on and how to solve this?
solved. flashed diff MIUI rom with 4.4.2 android (4.2.2 previous one), and wifi issue is solved. can lock or delete this thread pls

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