My xt862 locked to sim card where flash china xt883 rom. It does not pop up sim unlock code window when insert a sim card. How to get it pop up?
I reflash verizon rom and it doesn't work. still lock sim. Says invalid sim card/no service
djtwxj said:
My xt862 locked to sim card where flash china xt883 rom. It does not pop up sim unlock code window when insert a sim card. How to get it pop up?
I reflash verizon rom and it doesn't work. still lock sim. Says invalid sim card/no service
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My xt862 was on the xt883 ROM when I bought it off craigslist. I had to flash it back to stock to get rid of the other guy's Google account (it wouldn't delete, said it needed factory reset). After wiping, and flashing back to stock, I had to re-flash the radio.img from that Chinese ROM (and swap out my build.prop) to get it working on GSM again. Have you done these two things since flashing back to stock? I don't know what the other guy did in the process of putting my D3 on the Chinese ROM, but the GSM capabilities were lost when I wiped it (it wasn't back to stock yet, it was still a Chinese ROM, but likely locked to Chinese bands...really weird). I had to put it to stock before I could get GSM back.
So, if you haven't re-flashed the radio.img and made sure you have the tweaked build.prop in /system, then you might want to do that and see if it starts to work.
If you already did these things, try replacing your SIM and restarting several times. Mine decides to lose signal or forget which operator I'm using occasionally, so it isn't quite 100% reliable. Not entirely sure why.
Good luck
EDIT:
Also, you shouldn't need to unlock the phone ever again, as in, calling Verizon to get an unlock code. You only have to do that once, and flashing back and forth to different ROMs, even wiping the phone, doesn't get rid of the unlock. Just fyi.
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I honestly tried to find the answer to this everywhere before posting. I already have the unlock code from HTC and Tmobile. I simply need to figure out how to unlock the phone.
The instructions I received with the unlock code said that the phone would notify me that the SIM is unregistered and I would put in my unlock code at that point. I assume this is only the case on a vanilla version of Android or whatever the current official release is.
As you may have guessed, I have my phone rooted and have been running CM for a while. When the prepaid SIM is in the phone CM does seem to realize that its there and there is a SIM tool app but it does nothing. I have flashed to a couple different customer ROMS including dwang and a couple older version of CM.
Is there any way that I can actually unlock my phone without having to unroot and go back to the official android release from tmobile?
Thank you to anybody that can help me.
namelessted said:
I honestly tried to find the answer to this everywhere before posting. I already have the unlock code from HTC and Tmobile. I simply need to figure out how to unlock the phone.
The instructions I received with the unlock code said that the phone would notify me that the SIM is unregistered and I would put in my unlock code at that point. I assume this is only the case on a vanilla version of Android or whatever the current official release is.
As you may have guessed, I have my phone rooted and have been running CM for a while. When the prepaid SIM is in the phone CM does seem to realize that its there and there is a SIM tool app but it does nothing. I have flashed to a couple different customer ROMS including dwang and a couple older version of CM.
Is there any way that I can actually unlock my phone without having to unroot and go back to the official android release from tmobile?
Thank you to anybody that can help me.
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Is it The AT&T Prepaid sim card. If it is then i don't think it would work. i have an unlocked g1 with an AT&T sim card and i unlocked it before rooting. So guess u have to do the same. hope i helped
Right now I am trying with a TracFone SIM card but I could try with an AT&T card from a friend in a couple of days. I don't even really need to get the service to work at this point.
The two things I really want are just to be able to unlock my phone and backup my contacts onto a secondary SIM card and I am having no luck doing either.
namelessted said:
Right now I am trying with a TracFone SIM card but I could try with an AT&T card from a friend in a couple of days. I don't even really need to get the service to work at this point.
The two things I really want are just to be able to unlock my phone and backup my contacts onto a secondary SIM card and I am having no luck doing either.
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This is how i did it. i put my sim card in the phone and turned it on until it got to the screen when it said ( enter network key) i put the code in and it worked. i wounder if your able to put the contacts on the sd card?
Hi All -
I've searched everywhere for the answer to this and haven't been able to find it, so I figured I'd post here. This is the scenario:
1) I have a Moto X that is locked to AT&T
2) I wanted to give the phone to a friend who is on Sprint, so I paid for an unlock code
3) Even after unlocking and inserting the Sprint SIM, I still received the "SIM Network Unlock PIN" message
4) I now want to basically restore the phone completely back to the way it was (locked to AT&T), so it can be used with an AT&T SIM
5) I flashed the phone using RSDLite and the correct ATT ROM, but after the flash finished successfully and I insert a valid AT&T SIM, I still receive the same unlock message.
So my question is basically, can I get the phone completely back to being locked to AT&T, essentially the way it was out of the box? I'm also willing to flash it with Cyanogen or another ROM if that would help.
Any help is greatly appreciated, thanks for your time.
I have same issue, I had my Sim working for a couple of days but I wanted to return to stock to receive further updates and I flashed it with correct at&t firmware package but now there is a popup every time when I insert Sim about unlock code and I am stuck ... I think that's because of erasing modem st1 and modem st2 during flashing with RSDlite ... Is there anybody to suggest something helpful
Hi everyone,
I've been using an SM-920T 64GB Galaxy S6 bought from T-Mobile last summer. I did a permanent unlock using the T-Mobile application and since July I've been using the phone on the AT&T network. I just rebooted my phone today like I always do and upon restarting I got an "Invalid SIM Card" and it brings up a SIM network unlock PIN window that I can dismiss or enter a code into. What is going on?
I'm running XtreStoLite Deo 2.4 if that makes any difference.
Also, does anyone have the T-Mobile Device Unlock apk that comes stock with the phone? This is how I unlocked the phone in the first place but I don't have that app anymore since I run a custom rom, and the play store won't let me download it because I don't have a t-mobile SIM card in the phone.
Thanks!
Well for the benefit of whoever has the same issue. I flashed back the stock ROM via ODIN, ran the T-Mobile Device Unlock app, it said Unlock Unsuccessful in big, but right below it said the phone has been unlocked permanently. I put in my AT&T SIM and it was working again. Then I flashed back my TWRP backup and the phone remained unlocked. The non-Tmo ROMs get the unlock popup when a foreign SIM card is inserted, so getting an unlock code should work, but I didn't want to wait 3 days to receive one.
MrManH said:
Well for the benefit of whoever has the same issue. I flashed back the stock ROM via ODIN, ran the T-Mobile Device Unlock app, it said Unlock Unsuccessful in big, but right below it said the phone has been unlocked permanently. I put in my AT&T SIM and it was working again. Then I flashed back my TWRP backup and the phone remained unlocked. The non-Tmo ROMs get the unlock popup when a foreign SIM card is inserted, so getting an unlock code should work, but I didn't want to wait 3 days to receive one.
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Can you tell me what ROM you used? I have the g920T also, and bought it USED unlocked from ebay, but it had the FRP (factory reset protection) lock on it. I had my US cellular SIM card in it, even though I was stuck at the "enter your previous used google account on this device" and the SIM seemed to work (saw the LTE bars above).
But the only way for me to bypass the FRP was to flash to the ROM to stock (which I used the G920T tmobile ROM) and I got to the home screen but now it says "Invalid SIM card. Network locked SIM card inserted" just how you were saying.
When I try using the Tmobile unlock app, it says "Server not responding. Please try again later." .
Please help!
I received an unlock code from AT&T to unlock my phone for use with other carriers so that I can use it when I travel outside the country. But it's not working for some reason. Here is what happens:
Turn phone off
Take out AT&T SIM card and replace with friend's T-Mobile SIM card
Boot phone completely
Phone automatically prompts me for unlock code which I enter
Phone goes to home screen
Phone prompts me again for unlock code
I tried 3 times and stopped trying because after 5 attempts the phone supposedly permanently locks to the AT&T network.
I AM rooted running CM13. Is that the issue? If so, what do I need to do to get the unlock to work? I tried searching but I'm only seeing results related to unlocking bootloader, etc, not surprisingly haha. Thanks!
Your system must be totally stock to SIM unlock the Nexus. Flash a stock image.
Strephon Alkhalikoi said:
Your system must be totally stock to SIM unlock the Nexus. Flash a stock image.
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Okay to keep bootloader unlocked and keep root? Just need the stock ROM?
And then once I flash stock image and unlock SIM, okay to reflash CM13? And the SIM will remain unlocked?
Thanks again!
I wouldn't bother with root on the stock image since you'll be reinstalling your custom ROM afterward, but you can keep your bootloader unlocked without worry. Once SIM unlocked, the Nexus stays unlocked.
I have an AT&T locked Note 9, i paid to have it unlocked and just to test it and make sure it did in fact unlock, i inserted a Sprint sim card into it and it changed the firmware to sprint. now i cant figure out how to get it back to AT&T since now it keep trying to register my phone with the sprint network and i have to disable the system apps to stop trying. Help??
Flash AT&T firmware via ODIN?