[HELP] No Sim "Insert Simcard" - Galaxy Note II Q&A, Help & Troubleshooting

i insert my carrier to my note 2 and its work... but when i try to insert different carrier it says "NO SIM INSERT SIMCARD" i dont know if my N7100 is UNLOCK.. help meeee...

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[Q] Lumia 900 - Invalid SIM Error

Hello,
I bought an unlocked AT&T Lumia 900. As I inserted my non AT&T SIM, it prompted me for the SIM PIN code. I got the SIM and PUK code from my Network service provider.
Then Itried all the possible combinations and exhausted 10 SIM unlock and 32 PUK attempts. Since then the phone is not accepting any SIM card. It displays SIM Error message. Is there any way I can get my Lumia to work?
Or Is the phone useless now?
Please help.
Thanks
Iceman

[Q] Mobilink Sim Not Working

Hi Xdians.
I Have A Samsung Galaxy S3 SGH-I747 ,
When I Insert My Mobilink Sim Card In It Phone Shows That Sim Is Inserted And Showing The Name Of Network At Top But When I Try To Use USSD Code Then Phone Shows This Error,
''Emergency Calls Only'' ''Invalid USSD Code"
And When I Trying To Select Network Manualy Then Found This Error '' No Service (Slected Network (Mobilink ) Not Available.
Even Sim Card Is Inserted.
Kindly Help Me Out.
Sorry For BAd English

ZTE Max N9520 - How to insert unlock code?

Please HELP ME how to insert unlock code for unlock this smart phone.
My ZTE MAX is from Sprint BOOST operator.
Unlock code is here:
NCK/NP Code : 600914640880
SPCK/SP Code : 642193752180
I insert an unacceptable SIM card to phone, not ask me the unlock code.
Insert Tmobile SIM card, insert PIN code, phone not have signal, and in info operator write "invalid SIM card/Boost Mobile"
THX THX THX
Did you ever find a solution? I have the same problem.

Note 5 N920-C Unlock

N-920C Region lock asks for Sim network pin.
I purchased Note 5 model N-920C from Saudi Arabia but when I came back to India with an Indian simcard it asks for Network Sim Pin and if I discard it says invalid sim card or network locked sim card inserted.
Can anyone please help..
Thanks in advance

[ZE551ML] Phones does not recognize inserted sims. IMEI value shown as unknown!

I inserted SIMs in both the slots, still it shows no sim inserted icon in statusbar but for only I SIM tray. Usually when both the SIM trays are empty it shows two no SIM icons. The phone is acting like it's not a dual SIM phone :: 1) Settings->more does not show the usual "manage sim cards" option. 1) Settings->about does not show the usual "SIM 1" and "SIM 2" option, just a single "SIM status".
IMEI information has usually two entries but now only one and it shows the IMEI number as known!
Please check the attached screenshots.
What's happening with my phone? Tired RR Custom rom same there. Now on RR Custom Stock.
EDIT :
Everything normal after flashing RAW firmware. I thank the community for the help and support.
You can try this, it worked for me: https://forum.xda-developers.com/zenfone2/general/asus-zenfone-2ze551ml-ze550mlunlock-t3564309

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