[Q] Not Registered on Network - Galaxy S II Q&A, Help & Troubleshooting

Hi all. Just after a little help if possible.
Bought a 2nd hand S2 and was told it was locked to Virgin, before I bought it I made sure I saw the buyer make a call with the Virgin SIM on the phone.
I downgraded from ICS to 2.3.5, rooted the phone and used unlock tool from Market to unlock the phone. Tried several SIM cards in the phone, but I cannot connect to any mobile networks. In Phone Status, it shows phone number, signal strength etc but when I try and make a call is shows ‘Not Registered on Network’
I went out and bought a PAYG Virgin SIM card as I thought the unlock may not have worked correctly and exact same thing happens. Put the Virgin SIM in my unlocked HTC Desire and works fine. So, its deffo the phone that has the problem. I checked the IMEI number online to see if it had been blocked but it looks ok.
Any thoughts??
Thanks in advance.

Hi
A few things to check/try -
Does the IMEI number displayed by typing *#06# into the dialer match the IMEI number on the back of the phone (Under the battery)?
When you put a sim card in (other than Virgin) do you get a message from the phone asking for a network unlock code?
Does the network name of the Sim card appear in the status bar?
Which app did you use to unlock the phone? I've used Galaxy_S unlocker several times without any issue. (I install a ginger bread rom first, then insecure kernel, then root, then run Galaxy_S Unlock)

SMORG00 said:
Hi all. Just after a little help if possible.
Bought a 2nd hand S2 and was told it was locked to Virgin, before I bought it I made sure I saw the buyer make a call with the Virgin SIM on the phone.
I downgraded from ICS to 2.3.5, rooted the phone and used unlock tool from Market to unlock the phone. Tried several SIM cards in the phone, but I cannot connect to any mobile networks. In Phone Status, it shows phone number, signal strength etc but when I try and make a call is shows ‘Not Registered on Network’
I went out and bought a PAYG Virgin SIM card as I thought the unlock may not have worked correctly and exact same thing happens. Put the Virgin SIM in my unlocked HTC Desire and works fine. So, its deffo the phone that has the problem. I checked the IMEI number online to see if it had been blocked but it looks ok.
Any thoughts??
Thanks in advance.
Click to expand...
Click to collapse
Check ur imei no dial *#06#
verify that imei no with the one beneath ur battery
if it same then try flashing the stock rom again and root it and try unlocking again using the unlock soft from play store

Yes, the IMEI number matches so no problem there. Have been onto several free IMEI check sites to see if the IMEI number is blocked and it shows as not being blocked. How reliable these sites are I do not know...
No, no unlock message comes on. However, I locked the phone again when rooted and put the Virgin SIM in, which it should be locked to so should work, and I got a SIM unlock message? So, when the phone is locked, it does ask for unlock code, when unlocked using the app, lock code doesn't appear.
I do not get the name of the network in the status bar. When I look at the phones status, it does show a signal strength, and I do sometimes get signal bars but when I try and use the phone I get 'Not registered on network'
I used Galaxy_S app and did everything that you have done!
Have tried flashing stock rom, rooting and unlocking and nothing seems to work.
Worried that I may have bought a nice, expensive media player...

If your IMEI matches up with the one under the battery then I really don't know why you can't get a signal. Maybe someone else on here will give you some better advise. It sounds to me like you did everything right. The obvious thing would be if the phone is on the blacklist (stolen phone, or reported as stolen, 2 different things!). I wasn't aware of any sites that can tell you if the phone is reported as stolen so can't comment on how accurate they are.
Hope you get it sorted, it's the best phone out there at the moment so would be a shame if you can't make calls on it.

have you tried with diferent modem? or diferent rom?? or both at the same time?
for the modem try KI3 or KI4, seems to work pretty fine for almost everyone..

have you tried
hi have you tried going to
settings>wireless and network>mobile network>network operators
and checking the settings in there are set to autoselect network.
if this does'nt work +1 for all posts below.
hope it does.
also not sure but i think sim lock is set in security settings and the pasword for unlocking is stored on the sim that password was put on. anyone feel free to correct if this statement is wrong. many thanks

Related

samsung vibrant not registering on t-mobile or simple mobile network

i bought a new in the box samsung vibrant off craigslist to use on simple mobile, i unlocked the vibrant it works on both at&t and H20 but not t-mobile or simple mobile. anyone out there have a solution i can't call t-mobile since i am not an account holder and advice would be appreciated
bad simcard or if the phone is registered on diferent carrier put timobile sim card and try to unlock your phone with it
its not the sim card it works fine in my mytouch 4g with simple mobile, the sim is not blocked i believe the phone must be block from system by imei
put the simcard in and unlock the phone again ! ! duhh
???????
bartek25 said:
put the simcard in and unlock the phone again ! ! duhh
Click to expand...
Click to collapse
sarcasim is a good thing but maybe you aren't comprehending what i am saying duhh!!
i own NSPRO box and have unlocked the galaxy S phones quite frequently, the phone is sim unlocked for any sim card or gsm carrier, what i am saying has nothing to do with unlocking with the sim card in( which i tried for ****s and giggles). the problem is the vibrant is not recognized on the network , i have tried my sim and several other t-mobile sims the phone doedn't receive signal on t-mobile network or simple mobile( which is a NVO of t-mobile)so what i am asking is does t-mobile block imei's from their network and is their a solution other then changing imei of the phone which i do not wish to do although i can change imei i will not since it is illegal.
the problem
let me clarify it actually says on the screen
"not registered on network"
anyway to register it on system???
its unlocked and works on at&t, h2o and all other gsm carriers except t-mobile and simple mobile
clone another imei, that will solve this problem, There is an app that allows you to give you a new I D # to your phone
I am same problem here everytime try to make call it says "Not Registered on the Network", SIM card works fine on different phone, also other SIM when inserted on Vibrant gives same message.
Under Settings> Wireless> Mobile network settings does not allow access...
Can someone help resolve this situation.
Thanks,
I am also
having the same problem. I purchased a used Vibrant from my friend whom defaulted on his bill so he sold his phone to me. When I attempt to use the T Mobile prepaid SIM or a regular T Mobile SIM it will not allow me to connect to the network. It stays on (Searching) or (No Service) but the date and time updates so I know it is connecting, just not able to use the network. Is there anyway to get around this problem or do I need to root and unlock to go to another carrier?
Hi guys I am having similar issue, please help
I was using bionix 1.3.1 by team whiskey, whats your advice do I change to ICS, will that solve the problem or simple radio upgrade will solve the matter? I have gone through several sites and found that this problem is with many android mobiles since last 2-3 years. Is there no solution to this yet! I have tried Airplane mode, removing battery, downloading autocut and all those basic methods but to no help ...
I have the same problem, did anybody find a solution?
I tried everything, flashed to stock, GB, ICS, JB.
My phone is unlocked and it only works on AT&T, the sim card is good, as I'm using it on my backup phone.
alberto02005 said:
I have the same problem, did anybody find a solution?
I tried everything, flashed to stock, GB, ICS, JB.
My phone is unlocked and it only works on AT&T, the sim card is good, as I'm using it on my backup phone.
Click to expand...
Click to collapse
So you have a T-Mobile sim that won't work on a vibrant?
???
samsgun357 said:
So you have a T-Mobile sim that won't work on a vibrant?
???
Click to expand...
Click to collapse
Same here. This all happened when I let my friend borrow my phone to put his SIM on it. It was a prepaid Simple Mobile SIM. It didn't work but after I went to put my SIM card back into my Vibrant, the phone never got service.
Funny thing is, my SIM works on one of my older phones, so I know the SIM still works, but my Vibe gets messages like "out of service" and "not registered on network" even through it still has some bars.
I think the problems relates to this thread: http://forum.xda-developers.com/showthread.php?p=37703090#post37703090
Somehow the bands on your device is messed up so you never get a signal. Not sure how to fix it but any solutions would be great.

[Q] Hero blocked from making calls

I tried to get my phone unlocked today, however ever since then my phone hasn't been able to connect to any networks. I had to give my Imei number to get in unlocked, is there some way this could have been used to block my phone?
johno86_4 said:
I tried to get my phone unlocked today, however ever since then my phone hasn't been able to connect to any networks. I had to give my Imei number to get in unlocked, is there some way this could have been used to block my phone?
Click to expand...
Click to collapse
Yes in theory it could. Try the old sim and see if it works.
To block an imei requires access to the network systems, although you could phone them up and perhaps maliciously block an imei.
Did you use a reputable unlocker?
I used one off ebay however they had 15000 positive feedback.
I rang T-mobile and they say my phone is not blacklisted but its also not been unlocked. I dont know if this is true as when I put my unlock code in it said unlock ok and now when I put another network sim in it doesnt ask for the code. Ive since tried to use an orange sim card in it and this works but I dont know if this is anything to do with the fact that Orange and T-mobile have merged.
If it isnt unlocked then i dont know where to put a new unlock code in.
johno86_4 said:
I used one off ebay however they had 15000 positive feedback.
I rang T-mobile and they say my phone is not blacklisted but its also not been unlocked. I dont know if this is true as when I put my unlock code in it said unlock ok and now when I put another network sim in it doesnt ask for the code. Ive since tried to use an orange sim card in it and this works but I dont know if this is anything to do with the fact that Orange and T-mobile have merged.
If it isnt unlocked then i dont know where to put a new unlock code in.
Click to expand...
Click to collapse
Lol you are fine.
Tmobile don't know it is unlocked. It worked fine if the sim doesn't ask for the code now.
If an orange sim works then phone is OK. What is original problem again?
Lol sorry I havent been very clear.
Ive bought a Tesco mobile sim and that is what I want to use however when I try this sim it wont connect to the network. Ive also tried a O2 sim with the same result however an Orange sim does work
I really have no idea what could be causing it and ringing Tesco/T-mobile has been no help at all lol.
Might be a stupid question but are you sure you can get Tesco Mobile signal? Both Tesco Mobile and o2 use the o2 network. So that's probably worth checking.
snailydale said:
Might be a stupid question but are you sure you can get Tesco Mobile signal? Both Tesco Mobile and o2 use the o2 network. So that's probably worth checking.
Click to expand...
Click to collapse
Ive tried it in my girlfriends iphone and it works perfectly so I cant imagine its the signal. I'm totally flummoxed, the only thing I can think of is if the phone isnt unlocked, but then why then does the orange sim card work?
OK I've come to the conclusion that it hasn't been unlocked and the reason the Orange sim card works is something to do with their networks being joined. If this is the case is there a way of re-entering the sim unlock code?
TMOBILE has blocked your sim, you may need to root
johno86_4 said:
OK I've come to the conclusion that it hasn't been unlocked and the reason the Orange sim card works is something to do with their networks being joined. If this is the case is there a way of re-entering the sim unlock code?
Click to expand...
Click to collapse
TMOBILE has blocked your sim, you may need to root. My experience is this: I have a rooted HTC that works fine, however when I put the sim in my S2 or a second T-Mobile phone I get the error message "cannot connect to network" even though I have 5 bars.

i9300 Unlock Problems

I just bought an i9300 locked to Orange UK. I want to use my o2 UK sim card with it. had to transfer to a micro sim, which went fine and new sim works ok in old phone with adaptor.
first i tried an app called GalaxSimUnlock. This looked like it had done the job, but i couldnt connect to o2. Restored EFS back to original state. I then decided to go with a true unlock via one of those gsm companies, and they sent me a code. Code was accepted, i get bars of signal, but no network connectivity. it says "Unable to connect. Try later" when i try to connect to o2.
My IMEI looks good (353xxxxxxxxx080) but i just cant get on o2. Any ideas where i can go next?
Baseband version is i9300XXLFB, rooted with CF6.4
peterpandemic said:
I just bought an i9300 locked to Orange UK. I want to use my o2 UK sim card with it. had to transfer to a micro sim, which went fine and new sim works ok in old phone with adaptor.
first i tried an app called GalaxSimUnlock. This looked like it had done the job, but i couldnt connect to o2. Restored EFS back to original state. I then decided to go with a true unlock via one of those gsm companies, and they sent me a code. Code was accepted, i get bars of signal, but no network connectivity. it says "Unable to connect. Try later" when i try to connect to o2.
My IMEI looks good ************ but i just cant get on o2. Any ideas where i can go next?
Baseband version is i9300XXLFB, rooted with CF6.4
Click to expand...
Click to collapse
Remove your IMEI from the post. It's supposed to be confidential. Also as for your connectivity problems, try adjusting the APN settings. Can you make a call or text people?
Should you print your IMEI number?
circuit 89 you beat me to it.
jb.traveller said:
Should you print your IMEI number?
circuit 89 you beat me to it.
Click to expand...
Click to collapse
Lol
thought the IMEI might be important. "Not registered on network" when i try to call, texts don't get sent. i did check AP settings with what's on the o2 site and it looked good. will look for more to try
tried using APN settings from ny old phone but still no good. put sim back in old phone to make sure its ok and it is. This should work right? when you get a valid unlock code the phone should then take any sim... right?
I got a T-mobile UK phone, looked. Used the first tool, stuck my old o2 sim in and worked fine!
I don't know why you're getting issues.
SaticICE said:
I got a T-mobile UK phone, looked. Used the first tool, stuck my old o2 sim in and worked fine!
I don't know why you're getting issues.
Click to expand...
Click to collapse
Just tried that app again and it says im unlocked. Still no good though. Think i need an orange sim to make sure that works

Got Scammed with htc raider but can i fix it

Hi
i bought a htc raider from kijiji locked with rogers. the person who gave me the phone told me that it is locked with rogers so at the spot i just checked the functions like wifi etc and nothing much. after when i inserted the rogers sim card it did not recognize the sim card and still said no service. there were not signals coming and there was a cross on top of the bars. i tried it with other rogers sim card and the same problem. went to setting about phone network and every thing was disabled . i reset and hard reset but the same problem. i tried to get the imei number by pressing *#06# it just showed the letters"IMEI" but there were no numbers beneath it. i went to setting to check the imei number but nothing was mentioned there either. there was a imei number pasted on the rogers box and under the battery so i called up rogers to ask about the phone and they said it was refurbished phone and it is out of warranty so they cannot help me out.
is it a possibility that the guy tried to unlock the phone and could not do it correctly. is there any ways i can do some thing about the phone. every feature is working fine but the every thing related to calling features. its like now a ipod of android
please help me. if unlocking , unrooting is the option please tell me or paste a link to do that. if you require more information to resolve this issue please mention in the comments and i will let you guys know
thank you

Mobile network not available

Hi folks,
This is my first post so if I've done anything wrong please let me know. I think I'm experiencing quite a unique issue.
I have a Samsung Galaxy Nexus (Maguro) phone on O2-UK.
I'll try and summarise my issue
Currently I cannot make calls or send messages but can use 3g on the device.
When I put my girlfriends EE sim into the phone I can make calls and send texts
When I went to France with my O2 sim I could make calls and send texts
When I put my O2 sim into another device I can make calls and send texts
Whenever I try to make a call it states 'mobile network is unavailable' and when I try to connect to O2-UK in settings it states 'cannot connect at this time. please try again later'. The phone states emergency calls only but on the status bar it looks like it has a network connection and 3g can be used.
I've tried phoning O2 to setup the APN settings
It all started when I upgraded to CM12.1 from CM11. Although I have tried downgrading to the previous version and I am still having the same issue. I've tried wiping everything on the phone numerous times.
Is there anything else I can try, something I can wipe or a setting I can change?
Any help would be much appreciated!
If I can't sort it I'll grudgingly have to buy a new phone which is annoying because it only seems to have an issue with O2 in the UK
I had this when I upgraded from cm11 to cm13, all I did was turn on airplane mode for 10 seconds and switch it back on.
I wish it was that easy for me!
It seems that my phone has been blocked on my network (O2) since updating. Is there any way that an IMEI number can be involuntary changed during a root and installation of ROMs/radios?
I know this may be a very stupid question but my provider seems to think the IMEI number is strange, even though I purchased the phone from them in November 2011.
When I phone O2 their system says my IMEI number is different from when I type in *#06#.
Has anyone experienced this?
wattereus said:
I wish it was that easy for me!
It seems that my phone has been blocked on my network (O2) since updating. Is there any way that an IMEI number can be involuntary changed during a root and installation of ROMs/radios?
I know this may be a very stupid question but my provider seems to think the IMEI number is strange, even though I purchased the phone from them in November 2011.
Click to expand...
Click to collapse
Hmmm, you stated that the card worked in other phones right? I am pretty sure you stated that other cards also worked so to be honest, this is something you have to phone them up seriously about.
Yes when I put my girlfriends EE sim into the phone it works fone. Also when I was in France my sim card worked fine, I'm guessing because it was using other networks.
It gets even stranger, when I type *#06# into my phone I get an IMEI number. I used an online website to check the status of the IMEI number and it stated that my Samsung Galaxy Nexus (which I've owned from new) is actually an iPhone....
wattereus said:
It gets even stranger, when I type *#06# into my phone I get an IMEI number. I used an online website to check the status of the IMEI number and it stated that my Samsung Galaxy Nexus (which I've owned from new) is actually an iPhone....
Click to expand...
Click to collapse
I think we just found the source of our (well technically, your problem) problem. Now, do you have a nandroid backup or something that you are willing to restore to? I will look online for how to restore the imei.

Categories

Resources