Question Verizon A02S unlocked but not able to use on other networks. Need help unlocking - Samsung Galaxy A02s

Hi,
So this device I bought from facebook marketplace and was told it's fully unlocked.
After inserting a different SIM, the device works for a minute, then shows an error saying it's not a verizon SIM and disconnects from the network.
I contacted Verizon and they're telling me that it's unlocked but I guess something in the firmware that prevents me from using the phone. I did a factory reset, now the phone setup won't finish without a Verizon SIM card. it stays stuck on that screen.
Is there a custom firmware that I flush this phone with and be able to use the phone?
Please advise.
Thanks.
Verizon A02S unlocked but not able to use on other networks. Need help unlocking

Hi you have to remove headwind mdm thanks

I have the same situation. Bought a Samsung A02S and it's from Verizon and was factory reset.
It boots to "HELLO" screen but won't let me initialize the phone without a valid Verizon SIM. I put an old Verizon SIM and it says "invalid".
How can I boot this thing to get to settings etc. to unlock it from Verizon?

Related

New HTC One mm #6 error

Just purchased an HTC One and an unlock code, and upon inserting a T-Mobile sim card into the slot, I do not receive the Sim Network Unlock Pin request menu, instead I receive an error Phone Not Allowed MM #6 which I've read means the phone has a bad IMEI, but the phone works flawlessly with my AT&T Sim card meaning it cant be a bad IMEI. Am I just a noob and missing one simple step? I've rooted hundreds of phones and im coming from my HTC One X rooted and unlocked, so if anyone can help please respond as soon as possible, as I said I already have my unlock code, just unable to attain the input menu, the phone is NOT stolen.
Thanks so much,
Z?
zquesti0nmark7 said:
Just purchased an HTC One and an unlock code, and upon inserting a T-Mobile sim card into the slot, I do not receive the Sim Network Unlock Pin request menu, instead I receive an error Phone Not Allowed MM #6 which I've read means the phone has a bad IMEI, but the phone works flawlessly with my AT&T Sim card meaning it cant be a bad IMEI. Am I just a noob and missing one simple step? I've rooted hundreds of phones and im coming from my HTC One X rooted and unlocked, so if anyone can help please respond as soon as possible, as I said I already have my unlock code, just unable to attain the input menu, the phone is NOT stolen.
Thanks so much,
Z?
Click to expand...
Click to collapse
Does anyone on earth have a clue whats going wrong? I sat on the phone with AT&T, HTC, and T-Mobile for hours and no one has a clue why I'm not being asked for my unlock code upon inserting the sim card, please I cant be the only person who has had this issue, i have now tried many hard reboots, unlocked boot loader, even flashed maximus 7 HD to try and reset the counter and still no luck.
zquesti0nmark7 said:
Does anyone on earth have a clue whats going wrong? I sat on the phone with AT&T, HTC, and T-Mobile for hours and no one has a clue why I'm not being asked for my unlock code upon inserting the sim card, please I cant be the only person who has had this issue, i have now tried many hard reboots, unlocked boot loader, even flashed maximus 7 HD to try and reset the counter and still no luck.
Click to expand...
Click to collapse
I also recently bought an AT&T HTC One from Craiglist. When I inserted a T-Mobile SIM card it prompted me to enter the unlock code, which I entered then the phone rebooted and it no longer asked me for the unlock code.
BUT, i was not able to get a signal and got the MM #6 error.
The error apparently can be from the phone being black listed. in my case the phone is not blacklisted.
The other reason, it seems, since the phone was bought from AT&T with subsidies, AT&T will not allow the phone to be used on t-mobile.
Had the previous owner requested the unlock code before selling it then it would have been unlocked.
For now, I am using it with aio for $40/month which is pretty good.
Regards,

[Q] Unlocking an s3 on UK orange

Hi there, this is my first post on this forum so I apologize if this is in the wrong place. I have recently purchased an s3 (GT-I9300) used, on orange network. When the phone boots, the orange network logo is displayed. I rooted the phone using CF-Auto-Root-m0-m0xx-gti9300 using odin , and i have checked, and it is succesfully rooted. This was my first root on a phone, and seemed to go well. I have not installed anything else using odin. Then I went about to unlock the phone, getting numerous unlocking apps (ariza patch, galaxsim unlock, galaxy S unlock, voodoo s3 unlock) but they all do nothing, saying they have unlocked it but my talkmobile micro sim (which runs off vodaphones network) will not work in the phone, it just asks me for a network key, then says emrgency calls only, and if i try to dial anything, says 'not registered on network'. I have not tried another sim in it yet as that was the only microsim I had.
My question is, can I unlock this phone in any other way, like would taking it to a market stall unlocker, or buying a code from the internet do the trick? and also, will I be able to install custom roms on this phone safely? Im not sure if the orange bootloader affects this in any way. Thankyou for reading, any help would be greatly appreciated
ckush said:
Hi there, this is my first post on this forum so I apologize if this is in the wrong place. I have recently purchased an s3 (GT-I9300) used, on orange network. When the phone boots, the orange network logo is displayed. I rooted the phone using CF-Auto-Root-m0-m0xx-gti9300 using odin , and i have checked, and it is succesfully rooted. This was my first root on a phone, and seemed to go well. I have not installed anything else using odin. Then I went about to unlock the phone, getting numerous unlocking apps (ariza patch, galaxsim unlock, galaxy S unlock, voodoo s3 unlock) but they all do nothing, saying they have unlocked it but my talkmobile micro sim (which runs off vodaphones network) will not work in the phone, it just asks me for a network key, then says emrgency calls only, and if i try to dial anything, says 'not registered on network'. I have not tried another sim in it yet as that was the only microsim I had.
My question is, can I unlock this phone in any other way, like would taking it to a market stall unlocker, or buying a code from the internet do the trick? and also, will I be able to install custom roms on this phone safely? Im not sure if the orange bootloader affects this in any way. Thankyou for reading, any help would be greatly appreciated
Click to expand...
Click to collapse
Read this thread all the way through same problem as you >> http://forum.xda-developers.com/galaxy-s3/help/i9300-network-unlock-firmware-version-4-t2612736n << ( it will explain things more clearly ) and look at the last two comments it as a link to a paid solution

Unlocked frp on s7 edge sm-g935a and flashed t mobile stock 7.0 rom. Sim unlock help

New to android rooting/developing. Ihave searched countless hours looking for help with the issue im having. Whicj brings me here to seek help.
I bought a s7 on AT&T network. It was google FRP locked. After a few hours of getting through it with help from online tutorial, I realised it was locked when I put my tmobile sim into it.
Since I wanted volte and mms to work,(as it does not on my current verizon unlocked s7e) I used odin to flash the latest t mobile version on 7.0 on the g935. All went well but there one issue.
After tmobile ota updates that ran after I put my t mobile sim in it still won't work. Guessing the sim is still locked. But I do not get the device unlock pop up like I did before the odin firmware flash. Tmobile device unlock is not working, some error server etc.
How do I unlock this phone so I can pop my tmobile sim in and get the phone I've been working for... Lol. Thanks in advance. You guys are so helpful with all this.
Bump

How to get to "Enter Unlock Code" screen, when running Lollipop 5.1?

Hi all,
I have a Huawei Mate 2 from Freedom (Wind) Mobile. I have updated it to Lollipop 5.1 by unlocking the bootloader. In fact I made a guide for it a while back.
https://forum.xda-developers.com/ascend-mate2/general/guide-step-step-wind-mobile-canada-t3387490
Recently in Canada the cellular service providers are forced by law to give us an unlock code for free. After unlocking the phone would work with any service provider. This phone has a pretty big battery and would be ideal for a travel or backup phone.
I successfully got an unlock code from Freedom (which was pretty easy). I then put in sim cards from another provider (Koodo, Fido, etc). However the screen for me to enter the unlock code never popped up. It just say "no service".
I tried to manually set it up, by clicking the notification. "No Service: Selected network (Telus 3G) unavailable". However it won't register. Neither did the unlock code entering screen ever pop up.
And under data settings it say no SIM card. However the phone works perfectly when I insert my Freedom SIM card. But when a foreign SIM card was inserted it just say no SIM.
My question is has anyone been able to unlock this phone under Lollipop 5.1? How did you get to the "Enter Unlock Code" screen?
I also wonder if anyone has any luck unlocking with the original Android 4.3. If someone did, maybe I should flash the phone back to its original OS.
Thanks in advance!

Phone displays "Network Locked SIM Card" Inserted after flashing a stock firmware

Phone displays "Network Locked SIM Card" Inserted after flashing a stock firmware
I recently uninstalled Magisk, and was able to only boot into download mode after. So, I downloaded a stock firmware for my s9+ 965f and flashed it through odin (using AP,BL, CP, CSC(didnt select HOME CSC). But after rebooting, the phone displays "Invalid SIM. Network Locked SIM Card Inserted".
It asks for PUK code to unlock the phone and the cellular service alone is not working now. My phone is already region unlocked and I have been using it for the past 8 months. Has anybody got this issue and any suggestions on how to solve it?
Previous OS: soldierx rom for 965f v12 on Oreo
What I did,
i) uninstall all modules in magisk,
ii) uninstall magisk,
iii) phone auto-reboot
iv) Now phone stuck in download mode. Cannot boot it
v) downloaded stock firmware G965FXXU2BRGA
vi) flashed through Odin(AP,BL,CP,CSC)
vii) Phone completely formatted and boots up.
"Error:Invalid SIM card inserted. Network Locked SIM card detected "
I am now being asked for PUK code or cellular service wont work
You need to contact your carrier for PUK code, its protective measure against too many wrong PIN attempts on specific SIM. Can't fix that with any flashing.
Uksav said:
You need to contact your carrier for PUK code, its protective measure against too many wrong PIN attempts on specific SIM. Can't fix that with any flashing.
Click to expand...
Click to collapse
This is where the problem is. You put any sim card in that phone, you get the same error. The sim card works fine if I put in any other phone. I am not sure but unistalling Magisk has caused "SIM Card Read Error" in my S9+. I even upgraded to Pie from Oreo and flashed 3 different stock firmwares but the sim card error exists. 
 @topjohnwu
I would appreciate if you can help me on this. Not sure how to fix the issue
Looking up the error message itself points to some sort of network/carrier lock. If I am reading regional lock and carrier lock definitions correctly the two are not the same..
Did you have the phone network unlocked or was it network unlocked when you had root installed? If the device was network unlocked when it was rooted and you flashed back to stock (which removes root) this might explain what is going on...
scottusa2008 said:
Looking up the error message itself points to some sort of network/carrier lock. If I am reading regional lock and carrier lock definitions correctly the two are not the same..
Did you have the phone network unlocked or was it network unlocked when you had root installed? If the device was network unlocked when it was rooted and you flashed back to stock (which removes root) this might explain what is going on...
Click to expand...
Click to collapse
This is an unlocked phone. I had magisk installed and when trying to uninstall it to upgrade to latest magisk, the device wont boot except download mode. So, I downloaded stock firmware and flashed it. Once I boot up with the new stock firmware, I get this error
There is some sort of lock on the phone, which is why your being asked for the code.
I think you should definetly try was what was suggested above.. trying to contact the carrier and see if they can give you the PUK code. If I recall correctly you get a few tries to enter it correctly before it won't let you anymore (and it might lock the phone up good or damage the sim)
I'm having a similar issue on a Verizon A50. Any progress?
Gowtham34 said:
This is an unlocked phone. I had magisk installed and when trying to uninstall it to upgrade to latest magisk, the device wont boot except download mode. So, I downloaded stock firmware and flashed it. Once I boot up with the new stock firmware, I get this error
Click to expand...
Click to collapse
depending on what method was used to unlock it, its likely no longer unlocked. some sellers of unlock codes neglect to mention that part. im betting its locked again

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