[Q] galaxy s2 hd lte sim problem - General Questions and Answers

Hi Everyone
Heres a neat problem somebody may be able to shed some light on.
I have a samsung galaxy s2 hd lte I757M , it just expired off of contract from bell.
I wanted to unlock it and was ready to when I decided to check if the phone was locked by using *#7465625# and it says that everything is OFF so that means its unlocked, from what I have been reading.
I bought a sim card from roam mobility and booted it up. It did not ask for any code for unlock. It only says "No Sim card Emergency calls only. I installed it properly exactly the same way as the original one came out. Its clean to.
(Keep in mind I bought this phone brand new from bell never serviced or rooted)
I spoke to roammobility and they say the phone is supported on their network.
I thought the sim maybe defective so I tried it in a locked samsung galaxy s2 i9100m and right away when booting it asked for a unlock code, so to me it sees the sim is there. . I also tried it in a locked moto g with the same results..
Can anyone tell me why my phone does not read the sim or see it? Could this be some other type of lock?

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[Q] NOTE 2 - SGH-T889V - Unregistered Sim

Hi all,
I'm having a serious issue with my phone that just recently bought off kijiji, I suspect that my phone could be blacklisted or blocked.
So, heres the issue we, me and my friend went and tested this phone out. Since my sim was too big for the Note 2, my friend tried his and worked fine with WIND. After the person who's selling to me swiped the note 2 and gave to me. Deal done. Ok, once I got home, I cut my sim to size and tested it = invalid sim. Asks for unlocked code, but when i called the guy (person who sold it) he told me originally the phone is factory unlocked and suspected that i may have damaged the pins but wait if i did damage the sim slot pins it would've said NO SIM. Went to the store got it unlocked and still have the same problem. Went to a virgin store gave me a new sim that's actually to size and same problem. After virgin told me that on their records the IEMI # - listed a completely different phone like Galaxy Ace S6802 but the serial number on the phone is registered as a NOTE 2. So that's major red flag. Next, went to Wind, they said their going to charge me to get the phone registered on their networks. But there's the thing the phone worked with Wind sim card but after unlocked NO SIM cards work. I went to the settings of the phone and it supports multi band network so LTE and GSM and all the others should work. Also, when i use my friend's sim it says roaming but still doesn't work.
So, i'm assuming the original person stole the phone and it has been blacklisted and maybe he got some hacked to make it work for himself. By the way i do know where this person lives and i have strong evidences to support my claim against this person and will file a report against him if necessary.
SOOOO...any ideas guys?
Anyone got any input on the topic?

please help sim unlock s6

Hello everyone,
This is my first post I am stumped and need your help. I have a Samsung s6 (t-mobile 920t), my phone came with the t-mobile loaded app which allows the phone to be unlocked via t-mobile.
I know under the factory rom ( I have marshmallow 6.0.1) a sim unlock code is no good as there is no prompt for the code to be entered.... So, I rooted and installed 2 different roms: (carHDrom v.25-4dpJ2 and also XtreStoLite-ROM-3.3.1-DPDP) both roms rune beautifully. I AM PROMPTED the sim unlock screen, however I in put the sim unlock code which I bought yesterday via ebay and I get a error message saying " sim network unlock request unsuccessful". I bought this phone used it works fine on t-mobile. I am putting my At&t sim card in it, my sim card works perfectly in my rooted s5 from t-mobile however that phone gave me the option to put in a sim unlock code. The only thing is my at&t sim card was cut by me asit was a larger sim card to fit my s5, upon entering it into the s6 it is a bit smaller but still the phone detects a sim card is inside.
I have been racking my brain trying to figure out what the issue, is and I dont know what to do, I am reaching out to everyone for help.
Sim
jjam86 said:
Hello everyone,
This is my first post I am stumped and need your help. I have a Samsung s6 (t-mobile 920t), my phone came with the t-mobile loaded app which allows the phone to be unlocked via t-mobile.
I know under the factory rom ( I have marshmallow 6.0.1) a sim unlock code is no good as there is no prompt for the code to be entered.... So, I rooted and installed 2 different roms: (carHDrom v.25-4dpJ2 and also XtreStoLite-ROM-3.3.1-DPDP) both roms rune beautifully. I AM PROMPTED the sim unlock screen, however I in put the sim unlock code which I bought yesterday via ebay and I get a error message saying " sim network unlock request unsuccessful". I bought this phone used it works fine on t-mobile. I am putting my At&t sim card in it, my sim card works perfectly in my rooted s5 from t-mobile however that phone gave me the option to put in a sim unlock code. The only thing is my at&t sim card was cut by me asit was a larger sim card to fit my s5, upon entering it into the s6 it is a bit smaller but still the phone detects a sim card is inside.
I have been racking my brain trying to figure out what the issue, is and I dont know what to do, I am reaching out to everyone for help.
Click to expand...
Click to collapse
Did you ever figure your problem out

Unlocked note 8 AT&T but no gsm sim works

Hi everyone
I’m kinda puzzled with this note 8 and need some advice. Recently got a note 8 from AT&T and since I was traveling I had it unlocked to use by a third party company ( since att doesn’t unlock until Device payment is complete)
I got the code, unlocked the phone successfully. Before I left USA I put a working T-Mobile sim to test if connectivity, no luck, it doesn’t work, I tried a Verizon sim, nothing works....
Note... this T-Mobile sim and Verizon sim if I put it on a different device it will work...
any reason why this is happening
jmathew86 said:
Hi everyone
I’m kinda puzzled with this note 8 and need some advice. Recently got a note 8 from AT&T and since I was traveling I had it unlocked to use by a third party company ( since att doesn’t unlock until Device payment is complete)
I got the code, unlocked the phone successfully. Before I left USA I put a working T-Mobile sim to test if connectivity, no luck, it doesn’t work, I tried a Verizon sim, nothing works....
Note... this T-Mobile sim and Verizon sim if I put it on a different device it will work...
any reason why this is happening
Click to expand...
Click to collapse
The phone is not unlocked. Seems like an error happened when you got the unlock code. I'd try again.
Did you use this device on the att network? I mean, do you have it activated?
If you unlocked it by codes and the message after inserting the code is something like "unlock successfull" then your device must accept other GSM SIM cards.
Also, I would recommend you place a 5 min call with your device, with the att sim card and then insert again the tmob card.
What is the message when you insert the tmobile card in this device?
I did the same thing by using a Tmobile SIM during the unlocking process, and it worked on TMobile right after I unlocked it. It sounded like you did not unlock it using a different network SIM but using some other method. I am not sure if that mattered or not.
I then traveled to Asia, and I bought and used a local SIM card with zero issues. The 4G LTE was faster in that country than AT&T... LOL

How unlock used Samsung Galaxy Book 2 (Verizon) so I can use T-Mobile SIM??

How unlock used Samsung Galaxy Book 2 (Verizon) so I can use T-Mobile SIM??
My friend bought a used Galaxy Book 2, put in his t-Mobile Sim and message came up that stated something to the effect that his device needs a Verizon Sim. Even with this message (as someone said it still worked) it did not get a signal.
He cannot return this as he bought it from some 3rd party he will never see again.
He has T-Mobile as a carrier for quite a few phones and has some sort of lifetime extra device -T-Mobile sim plan he can use so he does not want to move just this device to Verizon.
The question is can this be unlocked by Verizon store? And even if it is and APN settings are changed would it work with a T-Mobile Sim?
I know nothing about these LTE laptops and not sure at least for Samsung if the radio in it is somewhat universal or compatible with most US carriers.
Thank you for any advice.
I appreciate it.
Sincerely
Peter

Verizon Note 20 Ultra

Hello guys,
Yesterday i bought a Verizona Note 20 Ultra supposedly unlocked, i put my sim from another carrier and it worked, when i got home i saw the following note in the screen: "Your device cannot be activated on another carrier at the moment, contact verizon support". My question is, Can i flash a unlocked firmware in order to use another carrier sim?
P.D. I have tried with T Mobile, Cricket and Telcel sims and non of them works.
Thanks you guys!!
You'll have to get in touch with Verizon so they can rectify it. If that doesn't work you can try an online sim unlock service to see if they can do anything about it.

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