What's wrong with this J320FN? - Samsung Galaxy J3 (2016) Questions & Answers

I won't lie. I bought this phone from a friend of a friend of a friend in order to lower the cost of replacing a stolen device. I shouldn't have, but I did it anyway. The phone was unlocked and this guy's photos, Facebook and messenger proved that he owned the phone.
However, though everything works fine (including Wi-Fi) the phone doesn't make/receive calls or connect to mobile internet with any carrier's sim card. It doesn't even bother to scan for mobile networks on the settings menu. The only message I get is not registered on network. No google lock, no Samsung lock, no carrier or region lock.
I've put it under every torture a man could think of but the darn thing just won't spit out it's secrets.
How about that: when I go abroad, the phone's roaming works. Phone's emm status changes from deregistered to registered. Mobile internet is on and I can make/receive calls with my own sim card.
Tiny detail: My csc code is now ETL (from EUR) but I'm pretty sure it's the same multi csc firmware.
Any ideas? Please?

Related

Mobile network state: disconnected

Got an x10 today off ebay, unlocked after browsing this forum, by htc-code, network shows carrier on home screen, signal shows 4 bars, yet in status it says mobile network state: disconnected, this results in me not being able to get any calls at all, not even a simple balance check, the sim card is pay&go whilst I sort it out but as far as I'm concerned it isn't a data plan issue or anything like that.
Just wondered whether this is an issue anyone knows anything about or whether it's been imei blocked or whether I should just get in touch with tesco.
possibly important info:
Tesco mobile
phone was locked to orange, now unlocked
firmware 1.6
baseband 1.1.25
kernel 2.6.29-rel semc-android semc #2
signal strength -85dbm 14asu
mobile network type utms
service state in service
mobile network state disconnected
Being a pay as you go, the SIM might need activating? Ring your Telco and see what they say.
The sim came out of another phone I've been using for the past 3 years I'll give them a call later to set up a data plan anyway.
Got hold of Tesco, they couldn't solve it, imei isn't blocked or anything, tried and Orange simcard (the network it was originally on) and that works and makes calls, my other sim doesn't make or recieve calls, so it looks like it hasn't been unlocked fully. I need to get hold of htc-code and try to figure out a solution, that is, when they're online. I'll post back with an outcome.
both my x10a and my nexus1 say the same thing, mobile network state disconnected, and my phones work great. i am on wifi now, but when i turn off wifi my phone has no issues with cellular data.
your phone must not be unlocked yet or you might not have entered your apn correctly. make sure the apn is correct for your network and try again
i just turned off wifi and waited for the 3g symbol to reappear and now my mobile network state reads connected. so this indicates if you are attached to the network for data only.
i would still make sure that you manually configure your networks apn settings and then try to make a call. i think i had an issue when i had flashed to a different firmware and had not entered my carriers info.
Thanks for the reply mate, I'll try that seeing as ferraripassion/sudarshan is offline I'll let you know how it goes.
Sort of fixed, manually entering APN puts up 3g symbol and changes mobile network state to connected, even on wap internet, but I still can't make or receive calls on this sim card :/
Thought I'd check the phone on checkmend this morning, although the phone does still work on an orange sim card, checkmend says
Ever blocked UK: This item has been blocked during its lifetime by one or more UK network(s).
IMEI Currently blocked: This item is currently blocked on one or more networks. It may still work on some networks.
Click to expand...
Click to collapse
So, with that, does anyone have any advice on IMEI unblocking/people to contact and getting my cash back?
Write to matey boy on eBay and get money back. Because clearly, he's sold a non-working phone that's probably been nicked.

[Q] Constant roaming with local SIM Card...

My Original HD2 got screwed just before Christmas (Faulty LCD and Digitiser).
As a replacement, I bought another one from ebay. Mint condition.
The phone works PERFECTLY in every way except one....
For some reason, my phone thinks its roaming CONSTANTLY, and if I turn off the 'data connection while roaming' then I cant connect to the internet.
This isnt actually a phone fault, but seems to be directly related to the SIM card.
Im living in Ireland and have a Meteor SIM which shows as roaming CONSTANTLY. Tried it with WM factory rom, energyrom, Android from SD card and Nand. All OSes show it as roaming even though Meteor is an IRISH company, and I bought the card in a local Carphone warehouse.
If I change the SIM to a vodafone (Ireland) one, or Tesco one, they show correctly as non-roaming.
Is there a possibility that the phone has some sort of ID which the Meteor Sim is reading but the others cant?
If not, Is there anything I can do to the SIM, or any phone settings that I am missing in order to get this issue resolved. Starting to annoy the HELL out of me.......
What network do Metior use? I had a similar problem with a 3 sim card. This kept coming up as roaming although I was only local. The 3 shop said that if you lose a 3G signal it will show as roaming and transfer you to a partner network ( 3 use orange) could it be similar with your sim?
May well be. The area I am in is low on 3g coverage from Meteor, and drops to Edge.
FINALLY got in touch with customer services at meteor and they hadnt a clue why I should show as roaming, but my bill shows NO roaming charges and infact the account wasnt even set up for roaming.....

Nexus 4 - No Service with specific carrier

Hi,
I have Nexus 4 for about 3 months, and I was using it fine with my SIM cut as micro sim in my carrer.
On Friday night, I put it into airplane mode and went sleep. On the morning I disabled airplane mode but the carrier signal didn´t came back.
I tried then put my micro sim into another phone, and it worked fine. I other carrier micro sim in my phone (also cut from normal SIM) and it worked just fine !
I already tested 2 micro sim from my carrier and all of them gets the same, N4 says 'No Service | Carrier name' but with another carrier, it works fine (tested with 3 different micro sim, from this same other carrier).
I called to my carrier asking if there is something blocking my phone, but they say everything is fone every time. (Btw I discovered that my sim was blocked for some reason, but it is now unblocked - so I´m thinking if they did not blocked my IMEI, but they say no every time).
If I go to the Mobile Networks -> network operators and choose my carrier from the list, it says 'Selected network (XX) unavailable'. If I choose automatic, it does not give me any error, but the 'No Service' text...
I already tried factory reset, reboot, airplane mode, flashed google factory image, flashed radio .33, .48 and .54, flashed CM 10.2... nothing...
My question is, is any way, techinical way speaking, that my phone has 'broken' something that avoid me to use only a specific carrier? Because my carrier adivce me to take it to repair, as it is the guilt on the history, but I´m thinking it is very strange that it work for another carrier but mine...
Is that even possible ?
Thank for you help !
"If I go to the Mobile Networks -> network operators and choose my carrier from the list, it says 'Selected network (XX) unavailable'. If I choose automatic, it does not give me any error, but the 'No Service' text..."
Click to expand...
Click to collapse
I'm having the same problem here, I've tried to flash back 4.2.2 ROM and then 4.3 stock but still no better. please any1 help us :crying:
Have you checked APN settings? I've seen it sometimes default to the wrong one if there's multiple in there. Who is your carrier?
It happens to be in my case, a problem with the carrier itself. I tried others SIMCard from same carrier, and got the same issue. Tried from a different carrier and worked just fine.
After a long fight if the carrier, I found out that my IMEI was on blacklist only for that carrier and after another long fight, I could get it unblocked and everything got back as normal...
trystan2k said:
It happens to be in my case, a problem with the carrier itself. I tried others SIMCard from same carrier, and got the same issue. Tried from a different carrier and worked just fine.
After a long fight if the carrier, I found out that my IMEI was on blacklist only for that carrier and after another long fight, I could get it unblocked and everything got back as normal...
Click to expand...
Click to collapse
I have the same problem with my nexus 7 2013 LTE, my carrier is always unavailable other 2 carriers in my country are just working fine. why would a a carrier put IMEI on a blacklist? I want more info about this problem if you pleased.
thais14_03 said:
I have the same problem with my nexus 7 2013 LTE, my carrier is always unavailable other 2 carriers in my country are just working fine. why would a a carrier put IMEI on a blacklist? I want more info about this problem if you pleased.
Click to expand...
Click to collapse
They have a lot of reasons to do that. In my case I believe that the cause was my phone got stuck with something and start to consume a lot of 3g data. As my plan do not allow tethering, they identify this high usage as tethering and blocked both my simcard and my IMEI (even that at first they swear my IMEI was not blocked, but after I opened a ticket in government regulations, they fixed it).
If it works with 2 other carries, do not work with other sim cards from your carrier and in past it worked fine, it is 99% sure that your IMEI is blocked at the carrier, I would say

Unable to register phone on T-Mobile network

I've been a T-Mobile customer with my OnePlus 1, got the OnePlus 5 today and went by the local T-Mobile store and got a new SIM card. A couple hours later I got around to actually setting up my phone. I realized I wasn't getting app verification codes, so I called T-Mobile to make sure the SIM card activated properly. She had me confirm the SIM card was inserted properly, then she had me turn the phone off and she "sent it a signal." That got text and data working, but still no go on the phone. She transferred me to the next tier up tech support. On the phone with them, we turned off WiFi, WiFi calling preferred, VoLTE, and automatic selection for Network operators. The phone did it's search and we selected T-Mobile 4G for the Network operator. The phone says it registered on the network, but T-Mobile says it didn't. We tried the second SIM slot but no change. We did a couple reboots and still a no go. I was then told that since it's not a T-Mobile branded phone, they can't guarantee that it will work. They recommend I put the SIM in a T-Mobile phone to confirm that the SIM works - I'll do that when I get home and try it in my wife's phone.
When I turn on VoLTE, I get text and can make calls, otherwise if I make a call, it just calls T-Mobile.
Under Settings > About phone > Status > SIM status, Cellular network state shows disconnected.
I also see under Settings > SIM & network > SIM 1 > SIM name it shows the name as T-Mobile but Carrier says Unknown
Fresh out of the box, running 4.5.3. Has anyone else had any problems getting their OnePlus 5 to register on T-Mobile? I searched the T-Mobile support site but didn't find anything helpful.
I'll try the SIM card in the wife's T-Mobile S7 when I get home, but if anyone has any pointers, I'd appreciate the help.
OnePlus 5 on T-Mobile here and no issues at all.
Sent from my ONEPLUS A5000 using Tapatalk
jasonrhodes32 said:
OnePlus 5 on T-Mobile here and no issues at all.
Click to expand...
Click to collapse
Same here. I also have 0 issues
Are you using the latest 4.5.4 update for OP5? They had fixes for VoLTE not connecting. Even though I think that was Europe only thing, the download made its way to my phone automatically. If you're not on 4.5.4, go upgrade (it's a simple thing to do)
What are your APNs set to?
Goto...
Settings
Sim and network
Sim x (1 or 2, wherever the sim is installed)
Access point names
Without doing anything besides entering my sim card into the phone and starting it, I have 4 options
If you have anything outside of your current provider, add them. The easiest way to do this is to open up another TMobile phone you have, goto to the same location on that phone and copy settings manually to your OP5.
I did this for my wife's S7 coming from Verizon. Although she doesn't get WiFi calling without flashing firmware (which I'll be doing when she's ready) you shouldn't have that issue.
Bad SIM card
Turns out the SIM card was bad. Went to the T-Mobile store, let the guy double check everything, then he grabbed a new SIM card, popped it in and two minutes later everything was working. I asked him how often he sees bad SIM cards, he said one or two a year.

No service after returning from abroad

Hi,
I have returned to the UK from abroad and I no longer connect to a network operator. My mobile network operator is not listed when I search for available operators. I cannot connect to any of the those that are listed.
I am running an old CM13 nightly.
I have rebooted the phone. I have removed and replaced the SIM, both while the phone was on and off. I have reinstalled a nandroid backup from before I left to go abroad. Nothing has worked as yet.
Turning the radio off and then on again using the *#*#4636#*#* code does nothing. It lists my IMEI number at the top; however, this is not the same IMEI number that is shown when I check my mobile account details with my network provider. Is this the main issue?
I am unsure what to try next. Any help or recommendations would be appreciated.
Thanks.
FIXED
The strangest thing - it's now working.
After a few days of googling and getting absolutely nowhere, I put the SIM into my wife's phone assuming it wouldn't work - and it didn't. But when I put it back in my phone, a signal was found immediately. Calls outgoing and incoming are fine, and I have received a text.
How odd.

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