How can I unlock my phone to work with prepaid SIM card? - G1 Q&A, Help & Troubleshooting

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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?

Related

[Q] Sim Unlock Code Not Accepted

Hi,
I have HTC one on Three UK network. I took Sim network unlock code from 3 different paid servers, All have given same code but code does not work. It says Sim Password incorrect. Spoken to supplier and he said it is some bug in new android system. Can anyone explain me how to fix this. I appreciate that.
I already 3 tried another source and checked imei etc.
talkways said:
Hi,
I have HTC one on Three UK network. I took Sim network unlock code from 3 different paid servers, All have given same code but code does not work. It says Sim Password incorrect. Spoken to supplier and he said it is some bug in new android system. Can anyone explain me how to fix this. I appreciate that.
I already 3 tried another source and checked imei etc.
Click to expand...
Click to collapse
Are you on a custom CID ? On a custom ROM? If yes, change them back to the original and it'll work.
attanasi0 said:
Are you on a custom CID ? On a custom ROM? If yes, change them back to the original and it'll work.
Click to expand...
Click to collapse
No it is original rom, original recovery but still not accepting. In attempt to flash i loaded up custom recovery now but unable to find any stock rom ruu on three. Hbot is 1.54 and s on and bootloader locked (i unlocked it using htcdev now)
talkways said:
No it is original rom, original recovery but still not accepting. In attempt to flash i loaded up custom recovery now but unable to find any stock rom ruu on three. Hbot is 1.54 and s on and bootloader locked (i unlocked it using htcdev now)
Click to expand...
Click to collapse
This is purely anecdotal but the phone I had before this was the s2 LTE model on AT&T, when they gave me the code it kept saying it was unsuccessful until I ran out of attempts. However when I actually put in a t-mobile sim card it worked fine and it was fully unlocked. Maybe try that?
Danmanlott said:
This is purely anecdotal but the phone I had before this was the s2 LTE model on AT&T, when they gave me the code it kept saying it was unsuccessful until I ran out of attempts. However when I actually put in a t-mobile sim card it worked fine and it was fully unlocked. Maybe try that?
Click to expand...
Click to collapse
You do know that to unlock the phone you need a SIM card from a different company inside the phone so that it asks for Network Unlock Code... SIM Lock is not the same...
attanasi0 said:
You do know that to unlock the phone you need a SIM card from a different company inside the phone so that it asks for Network Unlock Code... SIM Lock is not the same...
Click to expand...
Click to collapse
Obviously phone is asking for sim network unlock code when we put non accepted sim card. So phone is not unlocked. We do quite a lot unlocking and few phones get this error, we have to refund customer but I am seeking solution for it. It is only in Android phones (HTC and Samsung).. Samsung's we usually unlock using unlocking boxes but HTC One is not supported other than code. (Setool support older HBOOT).

Questions about Permanent Device Unlock

Does Permanent unlock mean permanent? Or is it something you can lose with a firmware update, factory reset, or user modification?
How does the device unlock? Is it unlocked by hardware like a knox trip? Is it from the carrier? Could it ever be re-locked?
Basically I bought my S6 from T-Mobile with the full intention of cancelling the service once I fully payed it off. $860 later, I made my final payment a week ago. I put in an ATT sim card, tried unlocking, nothing happened. Put my T-mo sim back in, did unlocking just to try it again, and it says my device is permanently unlocked.
I just want to know how permanent is permanent, and is it safe to cancel my service with T-Mo, and could the phone ever be re-locked by means of factory reset or by any change in the software?
Also my T-mo account balance is -$60, I don't fully know what that means, but it appears that they owe me $60. If I cancel, is a negative amount refunded?
It's supposed to be permanent. But T-Mo's custom device unlock is bugged. I permanently unlocked mine a few days ago and switched back to AT&T. Last night I started getting an invalid sim inserted message with my AT&T sim in it! So much for permanent unlock!!!
All I could think of doing to make sure it's permanent this time around is to Odin back to the stock MetroPCS rom so I could use their radio and unlock it the old fashioned way. Works fine with AT&T now. I just have to stick with the MetroPCS radio, or it will become locked again!
Question
guyd said:
It's supposed to be permanent. But T-Mo's custom device unlock is bugged. I permanently unlocked mine a few days ago and switched back to AT&T. Last night I started getting an invalid sim inserted message with my AT&T sim in it! So much for permanent unlock!!!
All I could think of doing to make sure it's permanent this time around is to Odin back to the stock MetroPCS rom so I could use their radio and unlock it the old fashioned way. Works fine with AT&T now. I just have to stick with the MetroPCS radio, or it will become locked again!
Click to expand...
Click to collapse
I've been away from android for a short time and now back on T-Mobile S6. I bought it outright from T-Mobile and haven't even had it three days yet but service is terrible. Is there a guide for exactly how to use the PCS firmware and then get root and twrp? How and where did you get the unlock code also? You said I need to stay on PCS? What if I flashed a T-Mobile custom rom off xda development site? Thanks, I'm just a little rusty and don't want to mess up my new phone. LOL.
brojoe11 said:
I've been away from android for a short time and now back on T-Mobile S6. I bought it outright from T-Mobile and haven't even had it three days yet but service is terrible. Is there a guide for exactly how to use the PCS firmware and then get root and twrp? How and where did you get the unlock code also? You said I need to stay on PCS? What if I flashed a T-Mobile custom rom off xda development site? Thanks, I'm just a little rusty and don't want to mess up my new phone. LOL.
Click to expand...
Click to collapse
There is a guide somewhere. I read it a couple of weeks back, so I knew what to do to Odin flash the Metro rom and use the regular sim unlock method. You can flash any compatible rom with your device. You just can't flash the T-Mobile radio, or you'll loose the SIM Unlock! The radio firmware is never part of a custom rom, so no need to worry there.
I bought the unlock code from androidsimunlock.com and told them it was a MetroPCS Galaxy S6. Worked perfectly.
Thanks. I'll do some more searching.
So the unlock is in software only?

How to SIM Unlock?

Hey guys,
I have an AT&T M7 that is off contract and obtained an unlock code directly from AT&T.
Now, how do I go and SIM unlock my device?
Any help/suggestion is much appreciated.
Thanks
smokarz said:
Hey guys,
I have an AT&T M7 that is off contract and obtained an unlock code directly from AT&T.
Now, how do I go and SIM unlock my device?
Any help/suggestion is much appreciated.
Thanks
Click to expand...
Click to collapse
If you already have your unlock code thats a good thing. Now to use it, you must shut your phone down, insert a foreign sim card (from a different carrier than AT&T, borrow a friend's sim card if necessary), boot it up and you should get prompted to enter the sim unlock code. Once done your phone is sim-unlocked and will accept any carrier sim card. Your phone must be running the stock rom btw (or a stock-ish rom, will not work on Cyanogenmod for example but should work on ARHD).

Removing Simlock from HTC Mini 2 after update to CM 12.1

Hello all,
I have a UK HTC Mini 2 locked on EE, I would like to remove the simlock and as such I have purchased a code to do so from ebay. However, the code does not work, I have verified with the seller and he says it is correct so I assume it has something to do with me installing CM 12.1 (NostomoPop).
My phone is S-On, Bootloader unlocked, could somebody advise me how I could unlock the phone please??
Thanks :good:
ki99 said:
Hello all,
I have a UK HTC Mini 2 locked on EE, I would like to remove the simlock and as such I have purchased a code to do so from ebay. However, the code does not work, I have verified with the seller and he says it is correct so I assume it has something to do with me installing CM 12.1 (NostomoPop).
My phone is S-On, Bootloader unlocked, could somebody advise me how I could unlock the phone please??
Thanks :good:
Click to expand...
Click to collapse
The unlock works only on SENSE ROMs, so you can't unlock it on CM, AOSP or GPE ROMs. Even after you have unlocked you won't have network in non-sense ROMs.
kativiti said:
The unlock works only on SENSE ROMs, so you can't unlock it on CM, AOSP or GPE ROMs. Even after you have unlocked you won't have network in non-sense ROMs.
Click to expand...
Click to collapse
I'm sorry to come to this thread so late but I've only just seen it. I hope you have already solved your problem but just in case here is my experience.
I have a One Mini 2 which was bought from eBay locked to Vodaphone. I bought a SIM unlock code online and had the same problem, i.e. the code did not work.
Stupidly I had cut down my mini SIM card to a micro card using a template I found online and this turned out to be the problem. I ordered a new SIM card from Giffgaff (their cards now come as a 3-format card which you cna just pop out to the correct size) and, after doing a SIM swap on-line to the new card number, put the new card in and entered the number as supplied. It worked perfectly.
I had already unlocked the bootloader and installed TWRP while waiting for the new card to arrive.
I have installed several different roms, CM12, Carbon, AOSP, Nostromopop (by far the best!), reverted back to stock, gained S-OFF with Sunshine, reloaded full stock from RUU, reinstalled TWRP, reinstalled latest Nostromopop, SuperSU, and on and on and on. I've never lost mobile network since I put in the new SIM card and entered the number I was given originally to unlock it.
So just in case you are still having problems, that was my solution: get a new SIM card!
Good luck
Hi ajlajluk,
I am in the same position as you were - HTC one mini 2 simlocked to vodafone, tried online unlock codes with no luck. I have a giffgaff simcard and cannot get it working, can you elaborate more on exactly what you did to get the unlock code working?
"after doing a SIM swap on-line to the new card number, put the new card in and entered the number as supplied. It worked perfectly"
How do you mean sim swap? tranfered numbers?
Im not having much luck when attempting to flash a stock rom and Sunshine doesnt like the CM11/CM12 roms when I tried to S-OFF (to change CID).
Any advice massively appreciated
robertbourne86 said:
Hi ajlajluk,
I am in the same position as you were - HTC one mini 2 simlocked to vodafone, tried online unlock codes with no luck. I have a giffgaff simcard and cannot get it working, can you elaborate more on exactly what you did to get the unlock code working?
"after doing a SIM swap on-line to the new card number, put the new card in and entered the number as supplied. It worked perfectly"
How do you mean sim swap? tranfered numbers?
Im not having much luck when attempting to flash a stock rom and Sunshine doesnt like the CM11/CM12 roms when I tried to S-OFF (to change CID).
Any advice massively appreciated
Click to expand...
Click to collapse
Ignore me, sorted happy as larry

Galaxy S6 relocked itself to T-Mobile after 7 months ?

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.
Click to expand...
Click to collapse
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!

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