Received a new replacement but IMEI are duplicate? - ZTE Axon 7 Questions & Answers

I received a new replacement from warranty. On the back there was a sticker with two separate IMEI for each SIM1 and 2. Inside the stock, phone status, it shows both SIM1 and 2 have the same IMEI that matches the SIM2 on the sticker. Is this normal or is something wrong? I tried putting two sim cards in and they both receive calls fine. Both have no credit to test calling or data though.
Update edit: Nevermind, might have been an old original ZTE firmware bug. After restoring my ROM I see both sims normal.

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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..."
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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...
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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.
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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

[Q]Can not get 3G signal. PLEASE HELP ME.....

HELLO EVERYBODY..
last week I bought a second hand S3 I9300I. Then I realized that the first slot does not work. And the second slot does not get 3G signal, only Edge. I checked the imei numbers from internet, and understood that this phone does not belong to any Turkish Carrier. Most probobly the guy who sold me the phone has brought it from another country. You should register the phones you have brought in my country. and it costs about 40$ for one IMEI NUMBER. He did not want to pay an extra 80$ so he changed the IMEI numbers.
I check the IMEI numbers. 1st slot belongs to an other I9300I but the system says this number has been written in different phones. The 2nd SIM slot belons to an LG. But registered before.. Both IMEI numbers are different from the ones written on the sticker under the battery slot.
Now I use 2nd slot. but can not get 3G signal. I tried everything. Called the carrier's call center, changed the settings.. But I could not get the 3G signal.. And EDGE is so slow.
I use 4.3 firmware. Yesterday I tried 4.4.4. and the 2nd slot didnt work. so I downgrade to 4.3 back. If I could turn the phone to the original IMEIs, I could register and solve the problem. I only want to get 3G/H or H+ from the second SIM slot, as I did with my previous phoNe which was S3 I9300.
DOES ANYONE HAS A USEFUL IDEA WHICH WILL HELP ME TO SOLVE THIS PROBLEM??? Appriciate any comments.

SIM slot connectivity issue Zenfone 3 (ZE552KL)

Hey Guys,
Bought a new zenfone 3 (ZE552KL). Unable to receive a call on SIM slot 1 ( Micro-sd). Caller hears a "Phone is switched off" message. The same SIM however works in the nano SIM slot 2. Called my network operator and got my sim replaced but the caller still gets the same message. Performed a factory reset as suggested by Asus customer care, still no joy. Finally ordered a replacement from Asus for the zenfone 3 ( ZE552KL) and SIM slot 1 still gives me the same problem i.e. the caller getting a " phone is switched off " message.
Anyone else facing problems with the zenfone 3 in terms of sim slots related connectivity?
junaid.mulla said:
Hey Guys,
Bought a new zenfone 3 (ZE552KL). Unable to receive a call on SIM slot 1 ( Micro-sd). Caller hears a "Phone is switched off" message. The same SIM however works in the nano SIM slot 2. Called my network operator and got my sim replaced but the caller still gets the same message. Performed a factory reset as suggested by Asus customer care, still no joy. Finally ordered a replacement from Asus for the zenfone 3 ( ZE552KL) and SIM slot 1 still gives me the same problem i.e. the caller getting a " phone is switched off " message.
Anyone else facing problems with the zenfone 3 in terms of sim slots related connectivity?
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Haven't tried SIM 2 but certainly has no any kind of issue from SIM 1. Call and cellular data works perfectly fine. Have you checked operator vs supported frequency? And also suitable firmware for the country?
sanctitude888 said:
Haven't tried SIM 2 but certainly has no any kind of issue from SIM 1. Call and cellular data works perfectly fine. Have you checked operator vs supported frequency? And also suitable firmware for the country?
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Checked operator against device compatibility on frequencycheck.com and it shows that the device is compatible with all bands.
I have no such issue. Both my sim1/2 work on either 2G/2G, 2G/3G, 3G/2G or 3G/3G modes. No 4G network here.
i have onr question can we get call on both the lines at same time i mean if i am talking on sim 1 can i get call on sim 2 at same time plz rply
Sent from my VIE-L29 using XDA-Developers mobile app

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.

I was able to activate blacklisted TMobile G950U with Verizon SIM card. How?

I bought a TMO 950U on CL and found out it was blacklisted (it came up clean when I looked it up before meeting).
I inserted my VZW sim card from my current phone and it suspended my line at first but I activated the line up back using the VZW website. Behold, I was able to use the phone for calls, texts, and data. I checked the IMEI after activating the phone and it was no longer blacklisted?
What the heck happened here? How can this happen?

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