Galaxy S3 I9300 No Service after unlock - Galaxy S III Q&A, Help & Troubleshooting

Hello friends. I recently bought a unlock code and it unlocked my phone but it says No Service and appears a no sign on the signal bars I have tried going to Settings.. Mobile Network.. Network Operators but my company name doesn't appear. can anyone help? It's also a cut Sim card might it be it's damaged because I bend it in the backside. Ive tried using cyanogenmod but no luck. Thanks! :fingers-crossed:

VoixNoire said:
Hello friends. I recently bought a unlock code and it unlocked my phone but it says No Service and appears a no sign on the signal bars I have tried going to Settings.. Mobile Network.. Network Operators but my company name doesn't appear. can anyone help? It's also a cut Sim card might it be it's damaged because I bend it in the backside. Ive tried using cyanogenmod but no luck. Thanks! :fingers-crossed:
Click to expand...
Click to collapse
yea try using another sim card.

Related

no network problem !!!

hi all
please i have problem ,the is not network in my phone (no signal)
am change the mobile but the same problem, am try to use manual search for network when i find it n try to connecte to it , its say u can not register to this network, and am type the secret code in virgin mobile which show me to which network am connect its say you r not rigester to network
any one have experiance in this type of problem?where is the problem exactlly in my sime card or in the network comapny (virgin)
regards
peo306 said:
hi all
please i have problem ,the is not network in my phone (no signal)
am change the mobile but the same problem, am try to use manual search for network when i find it n try to connecte to it , its say u can not register to this network, and am type the secret code in virgin mobile which show me to which network am connect its say you r not rigester to network
any one have experiance in this type of problem?where is the problem exactlly in my sime card or in the network comapny (virgin)
regards
Click to expand...
Click to collapse
1. Has this situation been occuring since the beginning? I mean , have you ever connected to the network?
2. Is your phone simlocked? If not , I'd suggest you to check if another sim card (preferably another company) works properly. If works , try changing the sim card first.
No Network
Hi,
Im also struggling with the same problem, its most frustrating being without the fundamental function of a mobile phone. Im on O2. It all started when 2.1 updated on my X10, since then my phone doesnt connect to O2 network.
Ive tried removing the sim, cleaning etc. then putting back in.
Tried swapping my sim with a friend (same network), no problem with the sim.
Just tried re-booting my phone (re-updating), no joy.
The last resort i guess before sending it in to O2 is to throw out of the window?
Any ideas?
Thanks
p.s. new HD camera does nothing but 'force close'.
thx for replay
my phone unlocked n and am try another simcard with another company its woks n am check my sim card in another phone its not work
first am got update (change region nomber method) befor 4 days ago n its work with me after update without problem but yesterday am not there is no network
i feel like my sim card banned from virign network so i don't know where is the problem in my sime card or in virgin network but am not feel i have problem in my phone coz its work with another sim card n my sim not work in another phone.
nomis26 said:
Hi,
Im also struggling with the same problem, its most frustrating being without the fundamental function of a mobile phone. Im on O2. It all started when 2.1 updated on my X10, since then my phone doesnt connect to O2 network.
Ive tried removing the sim, cleaning etc. then putting back in.
Tried swapping my sim with a friend (same network), no problem with the sim.
Just tried re-booting my phone (re-updating), no joy.
The last resort i guess before sending it in to O2 is to throw out of the window?
Any ideas?
Thanks
p.s. new HD camera does nothing but 'force close'.
Click to expand...
Click to collapse
Have you checked the APN settings?
Tony_C said:
Have you checked the APN settings?
Click to expand...
Click to collapse
ANP setting concerning when u don't have 3G connections not the main signale
up.....up.....up
peo306 said:
thx for replay
my phone unlocked n and am try another simcard with another company its woks n am check my sim card in another phone its not work
first am got update (change region nomber method) befor 4 days ago n its work with me after update without problem but yesterday am not there is no network
i feel like my sim card banned from virign network so i don't know where is the problem in my sime card or in virgin network but am not feel i have problem in my phone coz its work with another sim card n my sim not work in another phone.
Click to expand...
Click to collapse
I remember somebody had problems with new iPhone and old original ATT SIM-cards. ATT just gave a new SIM-card - it was a kind of incompability. Maybe you should go to Virgin tech guys and ask them to fix the problem.
I have strange thing with my phone when it was locked - I used old proxy-SIM and it worked fine with 1.6, but after I flashed it up to 2.1 it worked around 16 hours and eventually told me that there is no service - just like yours. Nobody had similar experience, but look like strange things are possible with those really smart phones. After unlocking - no problems for now.
Che Kirila said:
I remember somebody had problems with new iPhone and old original ATT SIM-cards. ATT just gave a new SIM-card - it was a kind of incompability. Maybe you should go to Virgin tech guys and ask them to fix the problem.
I have strange thing with my phone when it was locked - I used old proxy-SIM and it worked fine with 1.6, but after I flashed it up to 2.1 it worked around 16 hours and eventually told me that there is no service - just like yours. Nobody had similar experience, but look like strange things are possible with those really smart phones. After unlocking - no problems for now.
Click to expand...
Click to collapse
me too i think i have problem with my sim card, am already contacted the service clients but not solution till now !!!!!
i think after update, x10 will made variation of m-voltage which supported to sim cards, so directly burned( if the variation of voltage related with used area of sim-cards ,that's depends on our operators)
peo306 said:
me too i think i have problem with my sim card, am already contacted the service clients but not solution till now !!!!!
i think after update, x10 will made variation of m-voltage which supported to sim cards, so directly burned( if the variation of voltage related with used area of sim-cards ,that's depends on our operators)
Click to expand...
Click to collapse
I don't think, the X10 can damage SIM-card since SE always targets world market and takes in attention any regional differences. Virgin is not a real carrier, it is a mobile virtual network operator (MVNO) and uses Orange network as an underlying carrier. The last resort is to claim that you lost you phone (with the SIM card, of course) and ask for replacement. They can charge you (I used to pay $25 for T-Mobile USA in the nearest dealer shop, but didn't do any research since I needed the phone badly).
There is another possibility - as I know, ATT automatically changes the plan for their subscribers to a data-plan that is obviously more expensive as they recognize the new phone as a smartphone. It is weird practice, but see - it is possible, so be sure what's going on with your carrier.
please help me with network problem
i was trying different roms to flash, it was not good enough for me after with recovery i restore my backup original rom but no network, no signal, the sam problem with other roms, i changed sim cards as well no signal, when i make phone call there is a message ( CALL NOT SENT, PLEASE DIAL AN EMERGENCY NUMBER)
PLEASE HELP ME TO BRING BACK MY PHONE
i think you restore you old rom with wrong Baseband so try to search in xda you find which is the match baseband to ur old rom thats all

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.

Having to register network

Hi,
I've only had my s3 for a week, but when I go to make a call it says network not registered so therefor I have to go onto mobile networks and re-register and it keeps doing this through out the day and am just curious to know is there a fix or is it down to coverage? but my boyfriend has the HTC One X and his has not done this at all he is on the same network! :angel:
Thanks for the help guys
VιcкуHυgнєѕ said:
Hi,
I've only had my s3 for a week, but when I go to make a call it says network not registered so therefor I have to go onto mobile networks and re-register and it keeps doing this through out the day and am just curious to know is there a fix or is it down to coverage? but my boyfriend has the HTC One X and his has not done this at all he is on the same network! :angel:
Thanks for the help guys
Click to expand...
Click to collapse
Check if your sim card is properly inserted.
Try cleaning your micro SIM by wiping it and then try to look for a good reception, the first time I cut my SIM into a micro SIM I had the same problem the problem lies in reception because I was inside a internet gaming cafe at the time. Remember to automatically choose your network on the settings.
Thanks ill try cleaning sim! :angel:

LG V10 H901 Won't Register on EE Network in UK

Hi All
Recently bought a lovely new unlocked V10 (H901) from AliExpress for £78.
Before buying I did check that it operated on ALL the 2/3/4G bands that Plusnet use - the same as EE.
On inserting the plusnet sim it refuses to register on the 4G network. It has joined the 3G network a couple of times and made calls/texts but then loses connection again.
Spoken to Plusnet and EE but no joy.
Any ideas before I limit my losses and sell it on Ebay?
SOLVED!
Got into the hidden/service menu menu by using *#546368#*901#
Saw loads of stuff that I didn't understand but found one option about connecting automatically to networks that was switched "off" so I set it to "on".
Hey presto! When I came back out the phone registered on the network straight away and works fine on 4G for data too.
namastebuzz said:
SOLVED!
Got into the hidden/service menu menu by using *#546368#*901#
Saw loads of stuff that I didn't understand but found one option about connecting automatically to networks that was switched "off" so I set it to "on".
Hey presto! When I came back out the phone registered on the network straight away and works fine on 4G for data too.
Click to expand...
Click to collapse
The Code doesn't work.. Please check the code and post a reply as i have the same issue with my phone.
ronakstud said:
The Code doesn't work.. Please check the code and post a reply as i have the same issue with my phone.
Click to expand...
Click to collapse
Is your's the H901? If not you'll need a different ending to the code that matches your model number.

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