I recently bought a secondhand phone from someone. It was locked to a certain network so I tried to get an unlock code from two different websites and they both said they couldn't find the code for that IMEI.
I bought a sim card from the network it is locked to and it registers and shows it has signal but I can't make calls or send texts, but strangely enough the very odd time it starts working normally for a few minutes and then stops working again. Since I got the new sim card there has been no problems with the mobile data 3g and 4g.
I brought it into the networks store thinking it was a problem with them but they tried other sim cards and it still didn't work.
Does anyone have any suggestions?
z3r0sum said:
I recently bought a secondhand phone from someone. It was locked to a certain network so I tried to get an unlock code from two different websites and they both said they couldn't find the code for that IMEI.
I bought a sim card from the network it is locked to and it registers and shows it has signal but I can't make calls or send texts, but strangely enough the very odd time it starts working normally for a few minutes and then stops working again. Since I got the new sim card there has been no problems with the mobile data 3g and 4g.
I brought it into the networks store thinking it was a problem with them but they tried other sim cards and it still didn't work.
Does anyone have any suggestions?
Click to expand...
Click to collapse
Greetings and welcome to assist. It looks like someone else had a similar problem here
https://forum.xda-developers.com/p9/help/network-sim-card-dload-method-debrand-t3532705
It could be a stolen phone with fake IMEI but you could try flashing a different firmware for your device to see if that fixes the issue. The experts here
https://forum.xda-developers.com/p9/help
will guide you
Good Luck
Sawdoctor
Related
Phone's Settings read
Mobile Network Type- Unknown
Service State- Out of Service
Mobile Network State- Disconnected
My IMEI still shows up and I can connect to WIFI and bluetooth. The only problem is I can't get a signal, not 2G or 3G (even LTE)
This started happening out of nowhere, I tried taking out the sim, factory resetting, wiping caches, changing the APNs, restarting the phone, and I even put the sim in a new phone (It got signal).
If anyone has any ideas I'm all ears! What's the point of this amazing phone if I can't call people with it?
How long did you have the phone before this happened? Did you dial *#*#4636#*#* to check the phone info and change the network type?
I had a similar issue, but I think mine was a lot worse due to a dirty flash. I ended up having to do a fastboot recovery to restore it to factory.
Sent from my Nexus 5 using XDA Free mobile app
Raphael17 said:
Phone's Settings read
Mobile Network Type- Unknown
Service State- Out of Service
Mobile Network State- Disconnected
My IMEI still shows up and I can connect to WIFI and bluetooth. The only problem is I can't get a signal, not 2G or 3G (even LTE)
This started happening out of nowhere, I tried taking out the sim, factory resetting, wiping caches, changing the APNs, restarting the phone, and I even put the sim in a new phone (It got signal).
If anyone has any ideas I'm all ears! What's the point of this amazing phone if I can't call people with it?
Click to expand...
Click to collapse
What service are you with? I had this same exact issue a week ago with an LG G2. My Sim card would work in my Nexus 5 but wouldn't work in the G2.
After numerous factory resets I eventually called Metro PCS (my carrier) and I was told that whenever I put my Sim Card into a new phone I must always contact them and give them the new IMEI # so that the phone can work.
The Metro PCS rep claimed that they have a feature that disables the Sim from working in an unauthorized phone. I guess its to help with theft.
neXus 5
Hi, were you able to fix your issue? I am having the same exact issue and have done all troubleshooting I can do on my own but still nothing works.
If you have a method of fixing this please share.
Thanks,
iskyi said:
Hi, were you able to fix your issue? I am having the same exact issue and have done all troubleshooting I can do on my own but still nothing works.
If you have a method of fixing this please share.
Thanks,
Click to expand...
Click to collapse
I know this is really OLD!!!!
but i just had the same issue today
with a NEXUS 5 running stock marshmallo 6.0.1 with the latest patches
, and yes... is not the phone is the carrier
MetroPCS do IMEI lookup
i had another phone before the NEXUS 5
so it is no just matter of swapping the SIM card from one phone to the other
you need to call CS and you told them that your phone is not registering on the network
and that you just swapped phones
So they ask you for the IMEI of the "new" phone
and your SIM card #
you reboot your cell
and VOILA!
now the phone registers in the network
Yes, Metro do IMEI authentication
Hi ,
I recently bought Vodafone Smart Ultra 6, which is obviously locked to Vodafone. I did all the start-up settings and everything was running fine. Since my actual network carrier was EE ( Orange ) I unlocked the phone, which worked alright up until the point where it suddenly the phone would lose reception and regain it at random times. I thought that since my sim was really old and cut with a template to fit the nano sim requirement, I messed something up. I didn't mind swapping carriers since I wasn't that happy with my tarrif, so I ordered GiffGaff sim, got my PAC number from EE and activated my new GiffGaff sim with my old number.
I know for a fact that the sim works, because I tried it on different device, but my phone acts like it's locked to EE after the unlocking I did from vodafone. Every sim card I insert is unrecognisable by the phone, except the old EE card which is no longer active.
I tried doing factory restore, which didn't do anything.
Dialing *#*#4636#*#* and turning the radio on and off -> still nothing
I have no other idea what to do and I can't find any solution on the internet.
My android is 5.1.1 which I read that has similar problems on different devices, but none of the solutions I found worked for me.
Any help will be much appreciated.
I am sorry if the post is confusing and doesn't make much sense :/
To summarise:
The phone was locked to Vodafone and Unlocked immediately with an EE card inside
Now the phone constantly shows NO SIM CARD - Emergency Calls Only ( tried on GiffGaff and Vodafone Sim )
No Network Connection - Can't connect ( tried on EE Orange after initially unlocking, the sim is no longer active)
Thanks in advance!
XDA Visitor said:
Hi ,
I recently bought Vodafone Smart Ultra 6, which is obviously locked to Vodafone. I did all the start-up settings and everything was running fine. Since my actual network carrier was EE ( Orange ) I unlocked the phone, which worked alright up until the point where it suddenly the phone would lose reception and regain it at random times. I thought that since my sim was really old and cut with a template to fit the nano sim requirement, I messed something up. I didn't mind swapping carriers since I wasn't that happy with my tarrif, so I ordered GiffGaff sim, got my PAC number from EE and activated my new GiffGaff sim with my old number.
I know for a fact that the sim works, because I tried it on different device, but my phone acts like it's locked to EE after the unlocking I did from vodafone. Every sim card I insert is unrecognisable by the phone, except the old EE card which is no longer active.
I tried doing factory restore, which didn't do anything.
Dialing *#*#4636#*#* and turning the radio on and off -> still nothing
I have no other idea what to do and I can't find any solution on the internet.
My android is 5.1.1 which I read that has similar problems on different devices, but none of the solutions I found worked for me.
Any help will be much appreciated.
I am sorry if the post is confusing and doesn't make much sense :/
To summarise:
The phone was locked to Vodafone and Unlocked immediately with an EE card inside
Now the phone constantly shows NO SIM CARD - Emergency Calls Only ( tried on GiffGaff and Vodafone Sim )
No Network Connection - Can't connect ( tried on EE Orange after initially unlocking, the sim is no longer active)
Thanks in advance!
Click to expand...
Click to collapse
Greetings,
Thanks for using XDA Assist.
Please create an account so you can post in the other forums here.
After that, please post your question here:
http://forum.xda-developers.com/showthread.php?t=2259645
You'll find expert advice there.
Good luck and welcome to XDA!
Hi everyone,
First post so be gentle
I got my dual sim honor 8 some months ago as I dont want to carry 2 phones around with me.
My personal sim and the phone are with Three UK and my work sim is with EE.
The three sim is in slot 1 and the EE simin slot 2 and I am finding the calls keep dropping for no reason on the EE sim. I can be in an area with full signal but when the call drops I cant dial out or receive calls. The phone goes to dial but just sits with the calling screen and then fails to connect.
After I have moved it works again, its generally happening in the same places too but places that shouldnt be an issue.
Whilst the sim 2 is in this condition I can still call out from sim 1 (Three) and this problem never occurs on sim 1 (Three).
I have tried swapping the sims over but the problem remains with the EE sim. I have tried to swap the 4g priority over but the Three sim is 3g only so wont work as the secondary sim.
I have spoken with my work IT and they have replaced the EE sim but this hasnt fixed it, I have called Three tech support who have reset this and reset that and run diagnostics and say nothing wrong with the handset.
Any ideas or any one else experienced this?
Many thanks
If it's from the EE sim card, then it's from them I believe
Peterkmiles said:
Hi everyone,
First post so be gentle
I got my dual sim honor 8 some months ago as I dont want to carry 2 phones around with me.
My personal sim and the phone are with Three UK and my work sim is with EE.
The three sim is in slot 1 and the EE simin slot 2 and I am finding the calls keep dropping for no reason on the EE sim. I can be in an area with full signal but when the call drops I cant dial out or receive calls. The phone goes to dial but just sits with the calling screen and then fails to connect.
After I have moved it works again, its generally happening in the same places too but places that shouldnt be an issue.
Whilst the sim 2 is in this condition I can still call out from sim 1 (Three) and this problem never occurs on sim 1 (Three).
I have tried swapping the sims over but the problem remains with the EE sim. I have tried to swap the 4g priority over but the Three sim is 3g only so wont work as the secondary sim.
I have spoken with my work IT and they have replaced the EE sim but this hasnt fixed it, I have called Three tech support who have reset this and reset that and run diagnostics and say nothing wrong with the handset.
Any ideas or any one else experienced this?
Many thanks
Click to expand...
Click to collapse
Could it be a temporary problem on their side?
Why don't you ask EE customer service?!
PalakMi said:
Why don't you ask EE customer service?!
Click to expand...
Click to collapse
Did you even read the OP? He already did.
Sent from my Honor 8 using XDA Labs
Peterkmiles said:
Hi everyone,
First post so be gentle
I got my dual sim honor 8 some months ago as I dont want to carry 2 phones around with me.
My personal sim and the phone are with Three UK and my work sim is with EE.
The three sim is in slot 1 and the EE simin slot 2 and I am finding the calls keep dropping for no reason on the EE sim. I can be in an area with full signal but when the call drops I cant dial out or receive calls. The phone goes to dial but just sits with the calling screen and then fails to connect.
After I have moved it works again, its generally happening in the same places too but places that shouldnt be an issue.
Whilst the sim 2 is in this condition I can still call out from sim 1 (Three) and this problem never occurs on sim 1 (Three).
I have tried swapping the sims over but the problem remains with the EE sim. I have tried to swap the 4g priority over but the Three sim is 3g only so wont work as the secondary sim.
I have spoken with my work IT and they have replaced the EE sim but this hasnt fixed it, I have called Three tech support who have reset this and reset that and run diagnostics and say nothing wrong with the handset.
Any ideas or any one else experienced this?
Many thanks
Click to expand...
Click to collapse
try only using EE sim in slot one and check whether issue persists?
miststudent2011 said:
try only using EE sim in slot one and check whether issue persists?
Click to expand...
Click to collapse
Try and see
PalakMi said:
Why don't you ask EE customer service?!
Click to expand...
Click to collapse
Hi,
I have and they advise no fault, they have even replaced the sim card to rule this out.
Just try with a 3rd operator on both SIM slots: that will rule out hardware problems.
As for 3G/4G, operators use different bands, but you shouldn't have any problem.
Hello everyone and sorry if this is not the right place to ask, but I am a little desperate and could use some of your advice.
I purchased a phone through ebay which was supposedly unlocked. I am in Argentina and I put my SIM card into it. While doing the initial set up, the phone kept trying to do a "Hands Free Activation", which failed and retried 5 times before letting me do anything else. After I gained access to the phone (after all the steps in the setup), I tried making a phone call and it worked. I received an SMS from my carrier (CLARO Argentina) and I was able to receive calls. However, data does not work. At one point, I got a message saying to insert the UICC card that came with the phone originally (I don't have that). I tried factory resetting. I am assuming the phone is unlocked as I was able to place calls, I get signal with my carrier, and so on. Under mobile networks, Network Operators is greyed out.
I have been reading here and on other places, that I might have to use a Sprint sim card for a while in the phone to get it activated?
I was wondering if someone can help me to get this working. I need to have data on my phone. At times, the phone says LTE, 3G, etc above the signal strength indicator, but goes away quickly. I tried the same SIM with my older phone, an LG G4, and it works perfectly.
Thanks again!
Hello guys,
Im coming at you for a question which I can't have any answer.
I bought a Note10 Plus in October to somebody on the web, the phone was brand new (on its original sealing and packaging) and working perfectly. I was first on Three network, the phone worked, then I switch on GoMo, working perfectly too. On the 10th of November I traveled to Japan with a local sim card (Docomo) and same, all working. But yesterday, I came back to Ireland where I live, and still as of today, the phone show me 'SIM 2 not allowed'.
The phone is unlocked, I've checked with the Samsung support and they confirmed it (but didn't bring me helpful troubleshooting steps). I've contacted my carrier too who said that there is no issue on my account, and they will send me a new sim card too.
I'm not expecting it to work though, as the SIM card is working on the iPhone X of my gf, and her sim card is not working on my phone too. So it's only on my Note 10+.
I've tried to remove the sim and reinsert it, restart it, reset network settings, check the date and time, nothing to do, all go to the same error.
After making research, I tried to check some IMEI Blacklist check websites, but I don't trust them as I don't know where these infos comes from, but one catch my attention because it told me that the phone was blacklisted : https://www.imeipro.info/
All the others says that the phone is clean. Again, that's why I don't really trust it, and my carrier didn't mention any block. I'm still curious why my phone appear as blacklisted so I send them an email to try to know more.
I receive signal too, but can't send/receive calls or text, and I don't have access to data neither.
So now I have my phone with no any SIM working, and I don;t know what to try to get my phone working again.
I think I've explained all I did today, I don't know what to do more, I don't have any idea of what's going on with the phone, that's why I need your light to see if you can help me to find a way.
Thank you guys, I hope to hear from you soon!
From the sounds of it, it sounds like it's been blacklisted, that's my guess. Do you get any message when you insert the sim? I had a similar thing happen to me, turned out the guy I bought the phone off on Ebay didn't pay he's bill and phone wouldn't text or make calls anymore. O2 was the company that barred the phone, and they couldn't help me even though I had proof I'd purchased the phone from the guy, only he could sort it out as it was he's account. Anyway thankfully PayPal came to my rescue, they just needed proof it was blacklisted, carphonewarehouse did a check and printed out the results for me thankfully as I knew the guy that worked there. I got a refund and promised myself I'd never buy a phone off Ebay from a personal seller, if its a business account then maybe. Awful experience though. I hope you get this sorted.
I'm guessing you've never rooted the phone or flashed it as that can sometimes delete the efs folder which causes the phone to have no imei.
Thanks for your answer !
No usually I root all my phones but this time I wanted to keep it as normal, because tthe phone looks like there's nothing more to improve to me (except a little bbit the camera when the light is low..)
I didn't knew that it could cause such things ! I should have done that
Honestly that was the first time I bought the phone to somebody, and more of that, the phone was sealed on the original plastic with the label ''eu sim card only''. So I was trusting it, even if I know, that doesn't mean it's safe behind that.
Since I've posted the message, I contacted few carriers, like mine GoMo, and they dont know anything about the blacklisting (I was surprised) then I contacted Three, they told me that the device does not belomg to the; so they can't check.
I tried Eir, and they refused to give me infos for data protections, which I think is stupid because the phone is not a personal information who could reveal an identity but anyway. I didn't though about Carephonewarehouse, I will visit them because it seems like this is the best idea.
The weird thing to me is still that it didnt worked suddenly... I was in the flight and this is when I came back that it didn't worked. Well, maybe that was a bad hazard.
Something I've discovered yesterday more of that is when I have this issue, turning off the 4G and only allowing 3G/2G will allow me to use the data. Still no phone or text, but the phone is detecting the H+ signal and I'm free to go on the web.
Yes for your question, the issue happened instantly when I insert the card on the SIM1 with the error SIM not allowed, the SIM 2 slot works perfectly, that's what I'm using for the moment but I can't use any SD card at the same time, so it bother me. :/
Thanks for sharing your experience, then I know a little bit fore of what to do. I wanted to go to the police but I don't want to spend 2 hours there. Maybe I'll think of it as a last resort...
https://www.google.com/amp/s/forum.xda-developers.com/s10-plus/help/sim-1-allowed-t3945371/amp/
I just came from Japan as well I had the same problem but with my Sony Xperia 1.
I bought it from the states and I took vacation to Japan and used their sim card.
When I came back here in Florida I switched back to my at&t sim card I couldn't make calls or texts only data works for some reason I tried everything I used sim card on other phones (sim card is fine)
I tried everything, nothing worked !
I factory reset the phone and it worked, fixed the problem (it's strange because I used Galaxy s8 also with that sim card and it's working fine)
My Sony Xperia 1 had similar problem to yours
I don't know if this will help you to be honest but I had kinda same problem.
Hope you solved you issue.
jadaress1 said:
https://www.google.com/amp/s/forum.xda-developers.com/s10-plus/help/sim-1-allowed-t3945371/amp/
Click to expand...
Click to collapse
Thank you, but unfortunately the phone has been bought from someone as I said, and the suggestion there doesn't help :/
cali1986 said:
I just came from Japan as well I had the same problem but with my Sony Xperia 1.
I bought it from the states and I took vacation to Japan and used their sim card.
When I came back here in Florida I switched back to my at&t sim card I couldn't make calls or texts only data works for some reason I tried everything I used sim card on other phones (sim card is fine)
I tried everything, nothing worked !
I factory reset the phone and it worked, fixed the problem (it's strange because I used Galaxy s8 also with that sim card and it's working fine)
My Sony Xperia 1 had similar problem to yours
I don't know if this will help you to be honest but I had kinda same problem.
Hope you solved you issue.
Click to expand...
Click to collapse
Thank you for that, I've tried this yesterday after a backup, I used the sim card with the phone completly as new (well, I've restored it from the settings, so I don't know if it was the good way) and it didn't worked.
I think I will try carephone warehouse as jadaress1 requested, it might give me lot of infos there. Im also starting thinking that the phone is carrier blocked, but I can't see any reason why the phone was new and already unlocked so I don't see any reasons...
I'll let you know