Develop Bugs

[Q] SGH-T889 Metro PCS sim not working

Hello,
Today I bought a Note 2 on Craigslist. Since it was from TMobile I though it was only a matter of putting my sim card in the phone and it would work, I was wrong. The person that I bought the phone from gave me an unlock code that he got straight from T-Mobile, however when i used my sim card the phone didn't ask me for the code, so I assumed it was already unlocked.
I called Metro PCS to replace my current phone (LG optimus 9) with the Note 2, they tried using the IMEI number and they told me that there was a problem, that they couldn't activate the phone, and that I had to go to a T-Mobile store. I went to the store, they checked the IMEI and they say it was fine, the guy also told me that the unlock codes are only valid for 72 hours and the person who sold me the phone requested the code on 01/17/14 which means the code its no longer valid.
After that I tried calling Metro to get the phone activated, it didn't work...
I thought that maybe the phone was still locked so I did a downgrade to 4.1.1 - UVALJ1 (the phone was rooted and it had a 4.3 custom rom) and unlocked the phone using the method of that "secret" menu. I tried using the Metro sim card, no luck. At this point I dont know what else to do, a T-Mobile sim card works fine, I haven't tried with another carrier, however I've been using my Metro sim card in my L9 with no problem, so I don't see why it shouldn't work with the Note 2.
So my question is if anybody has tried using the Note 2 on metro, specifically a T-Mobile one, and if so, how did you make it work?
I am pretty new to all of this rooting and android stuff, but I have done as much research as possible before asking, this is my last resource so hopefully someone can help me. Thank you in advance.

Update: After trying multiple times to activate the phone on Metro PCS it turns out the phone appears on their database as it hasnt been paid in full and theres an unpaid equipment installment balance, that is only on Metro PCS database. I went to T-Mobile and everything was fine on their system, no blacklisted, no unpaid balances, no nothing so I activated the phone with them. Now hopefully the guy who I bought the phone from doesnt decide to report the phone as stolen or lost just to be an ahole.
Im on android 4.1.1 and I want to upgrade but my phone its telling me that I cant upgrade because my phone was modified. I want to upgrade to 4.3 but I dont know if I lost root when I downgraded to 4.1.1, how can I check if im still rooted and what rom do you guys recommend flashing? Thanks in advance
-- Thread can be closed, already rooted, upgraded and de-bloated.

[Q] Do I need a SIM unlock on DInc2 with CM flashed?

I flashed Chillybeans unofficial CM 10.2 and it works great so far. I was wondering if I would still need to SIM "unlock" this phone to use it overseas or on a GSM carrier.
I have been using this old phone as a backup/media player on WiFi and currently is not active on any cellular carrier. I may want to use it when I travel since it a global phone.
Thanks

The phone comes with a pre-installed VZW/Vodaphone SIM Card that, with a current VZW account, allows the phone to roam with additional charges on foreign cdma and gsm networks when abroad.
It needs to be unlocked to use other carrier SIM cards.
The unlock code is stored in hardware memory and is unaffected by rom or modem/radio firmware flashing.

Unless you plan on going global a sim isn't necessary. It works on CDMA. As for unlocking it to another carrier I believe it would have to be flashed to that company unlike the galaxy s4 the sim port on the dinc2 is strictly for global use. I believe there's a forum floating around on here about it. Hope this was helpful and be sure to click thanks if it was.

I mean u can use it on local gsm if its unlocked or ur s-off but u will only get Edge support. But if u just wanna use it on cdma using a cm rom has nothing to do with the sim just need an unlocked bootloader or to be s-off.
---------- Post added at 01:21 PM ---------- Previous post was at 01:03 PM ----------
Now if u used htcdev bootloader unlock then ur phone will only work on global and not local gsm u need to be s-off to use on other gsm networks whether the sim is unlocked or not bec its locked through htc not verizon. Sorry bout so many posts i get carried away sometimes lol hope this helps

Thanks for the responses, but I am still a bit confused. OK so for more background, I am rooted, fully S-OFF, and have flashed an unofficial CM 10.2 ROM from this forum link http://forum.xda-developers.com/showthread.php?t=2049902.
I am pretty new to rooting and modding and I am still a bit confused about the carrier lock. I get that if I buy a Verizon phone they lock it to their network until it's paid for and I should be able to unlock it now that I am no longer a Verizon customer, I have not actually called them to ask for this. Is this "lock" embedded in the actual SIM card, or some sort of partition in the phones memory that rooting/flashing ROMs does not touch? I assumed flashing a ROM deletes almost all the carrier software except for the recovery partition.
I have the manual to this phone, and I cannot find a spec sheet that lists the radios present inside this device. I assumed because it was "global" it had some GSM radios, am I wrong?
Here is the scenario I want to use this: I'd like to visit a friend in the UK, and instead of bringing my current phone, I'd bring the DInc2 toss the Verizon SIM card in the trash, buy a local carrier SIM card, pop it in and pay my charges and use it for the week. I know you can do that with Nexus phones because they are fully unlocked, would I be able to do this with my DInc2 if I got the Verizon unlock code since flashing a ROM does not unlock it?
Thanks.

Unlock phone, sim, root, odin, flash cwm, flash twrp, use your "unique key", wtf?

Unlock phone, sim, root, odin, flash cwm, flash twrp, use your "unique key", wtf?
Excuse me. I do this a couple times every year or so and I'm still confused as to what's going on? And why do I have to keep doing it? I just got a new AIO sim card and it requires some code to unlock. Does that mean my phone unrooted itself when I flashed the latest stock rom in here, which btw finally a fully functional ROM, go figure... And what's the difference between using odin and this code sequence from the dialer method I found somewhere where you punch in a long *#blablabla# code which puts you in the matrix where you do a little dance here and there then viola your sim is unlocked? Anyway, if these are all unrelated, what is this unlocking my sim business and when the heck does rooting actually occur within the maze of steps Odin takes you. And why all this after I flashed the stock rom? It's supposed to retain your rooted state still no?
Sent from my SGH-T989 using Tapatalk

juntjoo said:
Excuse me. I do this a couple times every year or so and I'm still confused as to what's going on? And why do I have to keep doing it? I just got a new AIO sim card and it requires some code to unlock. Does that mean my phone unrooted itself when I flashed the latest stock rom in here, which btw finally a fully functional ROM, go figure... And what's the difference between using odin and this code sequence from the dialer method I found somewhere where you punch in a long *#blablabla# code which puts you in the matrix where you do a little dance here and there then viola your sim is unlocked? Anyway, if these are all unrelated, what is this unlocking my sim business and when the heck does rooting actually occur within the maze of steps Odin takes you. And why all this after I flashed the stock rom? It's supposed to retain your rooted state still no?
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
So let me see if I understand your statement. You flashed another ROM... and then got a new SIM for your phone, but when you turned it on it will ask you for an unlock code? Rooting and unlocking are two different things, you can be rooted and not unlocked... so what you need to do is follow the unlocking method. Or... I don't seem to understand what you mean, can you be a little more specific?

Sorry. It's confusing. I'm stuck at the sim unlocking part, where you can put in a code from the dialer as shown here: forum.xda-developers.com/showthread.php?t=2024514
Unless you know your unique code to unlock your sim whatever that means. So I should still be rooted but now somehow still locked or something? Or is it just the sim that is locked? I'm fine with my old tmobile sim/account in place as in as I'm writing this, but as soon as I pop in my aio sim, back to that thread but id need to install uvle1 but b4 I do all that I just want to know what and why I am doing. Should I continue? What exactly will I be doing? Thanks
Sent from my SGH-T989 using Tapatalk

Sounds like right now your phone is carrier-locked; i.e. your phone will not work with a sim card for a network other than T-mobile's. Rooting will not unlock your phone for use with another carrier's sim card, however, the instructions in the thread you linked in your post will. If you really want to use that AIO sim card without paying for an unlock code from T-mobile or some other source, then the instructions in that thread are probably the best way to make it work. UVLE1 identifies particular modem/radio firmware and stock ROM that needs to be installed on the T989 in order to have access to the menu items required for the unlocking process. You can switch to the most recent radio or any ROM of your choice afterward without losing the ability of an unlocked phone.

My friend, you have a lot of studying to do....I'm sorry, but you seem awfully confused. No insults intended.
Please read all the stickies and then some.... before you attempt anything on your device. Very bad things can happen if you don't understand what you are doing and exactly how to do it.
Good luck!
Sent from my N5, N7, Moto X, G Tab 3 or S2.....
---------- Post added at 10:34 PM ---------- Previous post was at 10:31 PM ----------
2 search terms for Google will answer everything too.
One: how unlock t989 free XDA
Two: how root t989 xda
Those will get you started. ?
Sent from my N5, N7, Moto X, G Tab 3 or S2.....

Okay in up to speed now on all this. I've known this stuff at different points in my PDA phone assisted life but due to my own RAM deficiency i easily forget this stuff. Especially since I only learn it over a few days of the year.
Anyway, I forgot I never unlocked my phone because I never even needed to till now. My phone had always been rooted as I've been swapping ROMs for a while now. Well I'll go work on that solution now. Thanks for the replies
Sent from my SGH-T989 using Tapatalk

unlocking a china phone
please i need help on how to sim unlock a china phone
name:mizhi
model number:mz6 note
YunOS version:3.0.1
firmware:3.0.1-F-20150421.9035L
Baseband:MTK6595
kernel:3.4.67 SMP PREEMPT
BUILD VERSION:T1786DN_XKCKJ_W1_ALIYUN_SEC_V1.0.4_USER_r16059
would be glad if someone can give me information on how to sim unlock this phone.i bought it in china and came to another country.its dual sim

Good day my phone is not connecting to any network. When I insert my sim card it just writes emergency calls only... it doesn't even prompt me for the sim unlock code....plz help

[Q] Pls Help! Need to determine unlock status asap. Also, USSD codes failing

Hi.
I am unsure if my phone is unlocked and can proceed with porting my number over to Metro PCS. Please help me with advice how to proceed. I decided to move my service to Metro PCS since they are now a Tmobile company and after lots of research, I found that I can use my current phone/software as long as it was unlocked. I recently purchased my Galaxy s4 second hand and assumed it was not unlocked. I had immediately rooted it and flashed a new rom (Insane Kitkat 4.4.4). The phone has been working well. I already have requested and have my unlock code from Tmobile.
When I went to the Metro PCS store to port over my number, the phone did not request an unlock code when inserting their Metro PCS sim card (not activated). They said that my phone may already be unlocked or that it may not need to be unlocked since Metro is now owned by T-mobile. They stated that it may work if they go through the entire registration process, port over my number and activate it but that it would be a gamble. If it did not work, then I would not be able to go back and reactivate my sim immediately with Tmobile since it would then be in deactivated status with them.
I tried to find out if it is already unlocked by *#7465625# but my phone will not run this or any other USSD codes to verify. I keep getting errors when trying any USSD codes. A message says 'USSD code running' then "unable to process request".
A friend of mine has an activated Galaxy S4 on Metro PCS and I tried inserting her sim card to prompt for the unlock code but my GS4 just booted normally then showed 'not registered on network'. It did, however, have cellular signal bars. When I inserted my Tmobile sim into her GS4 it did ask for the unlock code normally.
I am at a loss now..

funny, I like to know if there is a way to check carrier unlock status for simcard without having to put a simcard in.

T-Mobile phones work with metropcs without the need to unlock

Could the custom rom be suspect?
Maybe need a stock rom to get carriers sorted out, then go to custom roms.
Pp.

serio22 said:
T-Mobile phones work with metropcs without the need to unlock
Click to expand...
Click to collapse
I ended up contacting Tmobile and they stated that the phone showed unlocked status already but I think you are correct. I wasn't aware they could tell me this. It was very fast and super easy to find out.
I have the phone working great on Metro PCS now. USSD codes still failing though...

How to Unlock S3 t999 4.3?

Hi to all, im new on the forum, i was looking to find a way to unlock my S3 t999 which has the android 4.3 JB, i got a lot of info but it seems that i only Rooted my S3, i found out that there an easy way to do it whit the Service mode but since i have Stock 4.3 its impossible, was looking a way to downgrade to 4.1.1 but probably ill get a brick, so if there any way that i get some help unlocking my device i sure will appreciate it.

After 4.1.2 I think there is no free alternative available (unless your carrier gives unlock codes for free after a certain time period). The best way to unlock your phone would be by contacting your carrier for an unlock code which usually means paying a fee or using a pay service. I would recommend using your carrier because they will offer better support and this would reduce your risk of getting scammed by a online service.

Help please!
Hi! Where do I begin?! So I have a tmobile s3 T999LTE version. Previously I rooted it because I wanted custom rom on my phone. Then I wanted to sell it so I unrooted it. I had read somewhere that after unrooting I should revert to latest stock firmware which was 4.3...BIG MISTAKE! It's now running on 4.3...LUVUBOH1 and I CAN'T UNLOCK IT! Tmobile had sent me a code which did not work, then I switched to metro pcs and purchased a code off ebay,which was the SAME code tmobile had given me. I now have metro pcs on another phone and when I put in my current sim in s3 it doesn't prompt for code! And no key combos are working due to change in dialer. I am stuck and gave no idea how to fix it. Imei is valid and I'm pretty sure I'm running stock 4
3. Help anyone? Please? ???

Was the phone running a completely stock rom when you tried to enter the code? How many times did you try to enter the code?