The guides are easy to follow. My problem is, when i type *#7284#, I get the error "connection problem or invalid MMI code. Any ideas on how to fix this or maybe another way to go about it?
Change it to 0808 and it should work
Related
Which is the dial code to use for checking the network lock/unlock status on the Galaxy S4 ?
I tried *#74656525* and I get an error message
Thank you
mirceani said:
Which is the dial code to use for checking the network lock/unlock status on the Galaxy S4 ?
I tried *#74656525* and I get an error message
Thank you
Click to expand...
Click to collapse
I did purchase an unlock code from unlock-code-central.com. Put a different SIM, typed in the code, got the message all went well, however phone says "emergency calls only"
Can anybody please help me with this?
Is my phone unlocked or not?
mirceani said:
I did purchase an unlock code from unlock-code-central.com. Put a different SIM, typed in the code, got the message all went well, however phone says "emergency calls only"
Can anybody please help me with this?
Is my phone unlocked or not?
Click to expand...
Click to collapse
There was no need to purchase the code as there are several threads here on how to menu unlock it. But since we are beyond that, I'm guessing the other SIM is not provisioned and has no service on it. Try using a friends T-mobile SIM. That's how I was able to check the menu unlock method.
mirceani said:
Which is the dial code to use for checking the network lock/unlock status on the Galaxy S4 ?
I tried *#74656525* and I get an error message
Thank you
Click to expand...
Click to collapse
hamzer11 said:
There was no need to purchase the code as there are several threads here on how to menu unlock it. But since we are beyond that, I'm guessing the other SIM is not provisioned and has no service on it. Try using a friends T-mobile SIM. That's how I was able to check the menu unlock method.
Click to expand...
Click to collapse
Thank you for your answer.
I used a regular size Vodafone SIM which I just used in Europe last month, on my other phone, so that SIM should be ok.
However I used a SIM cutter to transform in into a microSIM . Visually looks ok too. Could it be that in this process the SIM (now microSIM) got damaged somehow?
When I first insert it, I was prompted for the unlock code, which I typed, got an ok message, but that's about it.
Now says "emergency calls only" and it does NOT prompt me for the unlock code anymore.
Original ATT SIM works just fine.
There's more: I just put that Vodafone microSIM into my wife's phone (which is unlocked) and it works fine.
So bottom line, I used an unlock code which apparently worked (got the message "network unlock successful") but the phone does not appear to be unlocked.
I will definitely try a T-mobile SIM as soon as I find one, but in the meantime which is that "secret code" to check network status for this phone?
*#7465625# does not work and returns "connection problem or invalid MMI code"
Thank you
anybody has the answer to my question ?
"secret" code for Galaxy S4 to check Network lock status
thank you
For those in need, check this: https://www.roamgalaxy.com/pages/ho...alaxy-s7-edge-s6-s5-s4-s3-s2-s-note-1-2-3-4-5
I hope there is not a super obvious solution I missed somewhere, I apologize if I am hasty in posting this question, but I cannot understand why my AT&T l337 is not working with my Canadian mobile carrier, Wind Mobile. I do not get the network lock screen with the pin/dismiss options, and the phone picks up on signal, but it gets no data and still prompts "emergency calls only" when I try to make a call.
Phone is rooted stock 4.2.2 NC1, safestrapped, with an MF3 modem. I got the phone new when it was already on NB1 in May 2014, so the service menu unlock method was obviously not an option. I followed the steps in method 3 (@NewToGalaxy) from the @bvzxa3 "possible method to sim unlock" guide, http://forum.xda-developers.com/showthread.php?t=2595457, it does not seem to do anything but remove the initial "pin/dismiss" network lock.
I tried enabling AWS using the "enable AWS on AT&T samsung S IV" @zaryan guide (http://forum.xda-developers.com/showthread.php?t=2291589), but when I try to enter the *#7284# into the dialer for step 3, I get the same "Connection problem or invalid MMI code" I get when trying to use some of the options in the *#0011# service menu.
I have searched around XDA, but I did not find anyone who was experiencing the same issues I had. What am I doing wrong? Flash the MF3 modem, run regionunlock, insert non-AT&T sim (and all the combinations of steps therein). How can I enable AWS if my phone can't access those service menus?
Based on the information cloud-x provided in his sim-unlock thread http://forum.xda-developers.com/galaxy-s4-att/help/i337-sim-network-unlock-assistance-t2808211, it seems like receiving an unlock code from AT&T is not an option since I'm only three months into a contract, and normal unlock code vendors may not be able to pull codes. At any rate, I am in Canada for a limited time and I hope to solve this issue before I return to the states and cannot test my Canadian sim.
I'm sorry I'm kind of a noob and if this situation or issue has been dealt with before, I just hope someone can point me in the right direction.
http://forum.xda-developers.com/showthread.php?t=2285431 follow the state at the beginning of this thread after rooting and installing shortcut master lite use the secret code explorer and scroll down to code 27663368378 there you will see all the options needed. I was on NC1 when I did this
I337 stock NC1, rooted, unlocked
Sm-T537A NE1stock, rooted
Hi,
I just unlocked my LG G2 D803 "originally with rogers" (CAN) using a unlock code that I purchased over the net.
Bell Sim Card now loaded and activated.
Once I restart the phone it says No Service..
I set the APN correctly
Still nothing, and it just keeps looking for the network. Oddly I receive a "New voice mail" notification.. I try and click it and just get.. Warning, emergency calls only.
What could be the issue?
Would downloading a custom rom and installing a new modem do any good?
Any help would be much appreciated.
Thanks guys
Sincerely,
Royce
For me when I unlocked my phone I had to enter the unlock code twice for the phone to unlock my D803... Just check from the secret menu... All options should say a message about being not personalized
danial.aw said:
For me when I unlocked my phone I had to enter the unlock code twice for the phone to unlock my D803... Just check from the secret menu... All options should say a message about being not personalized
Click to expand...
Click to collapse
Every one in that "secret menu" says my phone is not personalized. I'm pretty sure this means the phone is unlocked. I noticed other people having the exact same issue after unlocking their phone. Still cant find any solutions.
Solved...
The phones been blacklisted.
Anyone who is having similar issues.. this is most likely the case.
I have a galaxy S5 on AT&T that I'm trying to use a straight talk sim in. (Att towers) whenever a sim is inserted into the phone I get "Sim not allowed mm#3". I used a reputable service (cell unlocker) to unlock the device. The IMEI comes up clean as well. I've also changed the APN settings, but it won't connect. I'm trying to port from a galaxy s3.
I would also like to quickly add that the t mobile straight talk sim works just fine, but using that is not an option as the service is atrocious.
Another thing, the ATT sim works in a galaxy S4 with no issues. They are both sims for straight talk. Any help is really appreciated, this is baffling me.
Just went into the service menu with *#0011# and in the debug menu i can't actually see a MM reject cause. CARD_ERROR: Unknown and PERSO_FEATURE: UNSUPPORTED are the only relevent info i see here. The phone has been unlocked, is there a way to flash the service menu with ODIN and reset it all to stock? I know this won't lose the unlock, so in the off chance that I did accidentally click on something in there before will the tar.md5 file fix this? I read a post where user sanquante said he had to flash the PDA.MD5 file and it fixed it...I'm assuming he meant the tar.md5? Thanks for ANYONE willing to help. I really could use it.
bump...
So i unlocked my US bought s7 edge (AT&T) , they gave me a network unlock code which after entering shows that the device is unlocked but when i insert other providers sim it is not able to search for network and shows no service, is there any way to fix this ? will installing a custom rom fix this issue ? Will US set support Indian ROM?
Bump!
Airtel
I would also like to know how to fix this issue. Unlocked a sprint S7 and when i put in my metropcs sim, it just says searching, and when i try to do a manual search it fails. "Error while searching for networks"
It shows error when i try to search manually