Develop Bugs

[Q] Unique Problem With SGH-T989 Galaxy S II! Need Expert Advice!

I recently purchased a Samsung Galaxy S II T989 off of craigslist. It was described as Brand New, and came with box and all original accessories, etc. Still had screen protectors and everything on it, so i assumed i would have no problems. I am using AT&T and wanting to unlock it so that i wouldn't have to switch carriers. I paid a pretty reputable website 25$ for the unlock code, which i received and entered as directed.
I attempted to enter my SIM and i get an invalid SIM message. I called Samsung to figure it out and they had me send them the phone. They received it and inspected it to ensure nothing was wrong. They then tested the IMEI which came back as a black-listed phone, but would not disclose the reason.
So t-mobile will offer me no help what so ever, nor will samsung. I try calling the *#7465625# number to test if the phone is unlocked, but i get an error message stating "The process com.android.phone has stopped unexpectedly" and i have only one option which is force quit. I used the factory reset option a couple times to see if this helped at all, and got nothing.
I only have experience with iphones, so i really know nothing about the android OS. I've heard a lot about "rooting" and such for the unlock but it's like a whole different language for me. If anyone could help it would be greatly appreciated. This phone has just been sitting in my drawer for the past month because i have absolutely no idea what to do.

Sounds to me like you may have bought a phone that someone perhaps filled an insurance claim on. I know I had a phone taken once and filed a claim on it and got a new one, eventually got the old one back and when a friend took it in it was taken on the spot. This may or may not be the case.

Yup sounds like someone bought a phone, Reported it lost,Kept the replacement, and sold you the stolen one. The same thing happened to me about a year ago with a HTC G2 from craigslist. You could try rooting (really not as scary as it seems) putting a new ROM then try to unlock again
Sent from my SGH-T989 using xda premium

That is what i'm assuming the case is. I've heard of friends and such running into the problem, but never thought i would fall victim to it.
Do you know where i might be able to find a rooting guide for a complete noob like myself? Step by step in depth kind of stuff? Would the fact that the phone is blacklisted cause me to get the error i'm getting whenever i try to test the unlock? Is it possible to unlock the phone for another GSM carrier even though it is blacklisted with t-mobile.

Explore all the options of getting your money back. If no good, you can always try to get someone to chqnge the imei for you, beware tho, its same illegal as changing vin plate on a car. Theoretically noone will help you, but practically, there are plenty shops selling nintendo cardridges with 100 original games in one...
Sent from my ST18i using XDA

You cannot ask on here how to fix this problem. It is against the rules, and illegal. This thread will be closed.. Just saying.
Ebay it with bad efs in the title, sell for parts, will probably get a coupe hundred for it. Don't buy a phone off frauds list unless you meet them at the retail store and have the number ran. At least then if they report it stolen you have some record of the transaction and may be able to get it UN black listed. Crappy situation that is for sure.
Sent from my SGH-T989D using xda premium

As stated, the course of action you were proposing is illegal and therefore discussing it on the forum will not be tolerated.
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Need help with activating pre paid service

I bought my LS970 from a guy, I didn't ask many questions. Shortly after I got it, I flashed it to PagePlus and had it activated. I dropped it and the touch screen stopped working. So I let the service go. I just got it fixed again and I tried to re activate it back with PP, but they said my phone is no longer in service with them and they can't reactivate it because it's not a Verizon phone.
I would like to get it activated on another pre paid plan, but I'm not having any luck finding one that works. ANY help at all would be appreciated. Another thing, I checked the MEID and I got this back.
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I'm just guessing, but I think I'm going to have to pay someone to unlock my phone from Sprint so I can use it on Net10 or whatever. I could be wrong, but does that seem like that's what I have to do?

Strizay said:
I'm just guessing, but I think I'm going to have to pay someone to unlock my phone from Sprint so I can use it on Net10 or whatever. I could be wrong, but does that seem like that's what I have to do?
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Sounds like it may need to be flashed. Carrier unlocks usually apply to SIM (GSM) devices. If you want to use a CDMA device on another carrier you need to flash it. Unfortunately it looks like a lot of carriers communicate now than before and someone seems to have blocked your IMEI and as far as I know, changing it is against some laws, depending on your location.

dopy25 said:
Sounds like it may need to be flashed. Carrier unlocks usually apply to SIM (GSM) devices. If you want to use a CDMA device on another carrier you need to flash it. Unfortunately it looks like a lot of carriers communicate now than before and someone seems to have blocked your IMEI and as far as I know, changing it is against some laws, depending on your location.
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I flashed it to PagePlus and was using it on that carrier until the phone broke, like I mentioned above. It's just still seeing the MEID number as being as a Sprint contract phone. I think I just need someone to unlock it or find a way to get the unlock code so I can do it myself.

so what you're saying is, that I can't just get an unlock code to get it off of Sprint, I actually have to flash it to another carrier again? What carrier would you suggest? Could I use NET10 or StraightTalk?

Anybody?

bump

bump

OK, I didn't really get any help yet, so instead of another bump could maybe someone point me to a working tutorial to flash my LS970 to another network? One that I can use as a pre paid service. Like Ting or Net10 or Virgin? Please.

wireless workshop
I used wireless workshop. Pm me for details. Or goto wireless workshop dot com

toneloclbc said:
I used wireless workshop. Pm me for details. Or goto wireless workshop dot com
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I sent you a message toneloclbc

Moto z play has no data on att

Got my new unlocked moto z play today. Went to the AT&T store to get a new sim. Had a micro needed a nano. Anyway did this during my lunch hour, they activated my phone and I left. Later on noticed I had no internet. The data icon showed a question mark. I called support an after an hour they stated my phone is not compatable with there system. I have phone and text, but no data. The phone is being marketed as AT&T compatable. After going to the moto site they have an area that states the phone may not be compatable with all services that AT&T has. I find it hard that they would exclude data.
Anyone else with this issue?

Funny enough I also have no data. However my issue started when I tried to root, and ended up having to flash a boot.img from another variant to even boot anymore. You can check to see if your APN's are set up correctly, or if you have any. Before all of this though, I had data working fine.

Seems like ATT says any unlocked phone is not compatible, or they send you the wrong SIM in the mail. Like was said before, check that you have an Access Point Name setup. I always have to with unlocked phones.

Well it seems it was the APN, damn spent an hour with a tech and the didn't know that. You would think after checking to see that the sim matches there account that would be next. Thanks all for your help. Love the phone would have hated to return it.

Tech support for most companies are useless. They read off of a list of things that could be wrong. Passed that list they have hardly any technical knowledge. 99% of the time you're better off coming here with questions...

metalmike6 said:
Tech support for most companies are useless. They read off of a list of things that could be wrong. Passed that list they have hardly any technical knowledge. 99% of the time you're better off coming here with questions...
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That is so true, thats y i ask here first.
Sent from my SM-T280 using Tapatalk

enferraro said:
Well it seems it was the APN, damn spent an hour with a tech and the didn't know that. You would think after checking to see that the sim matches there account that would be next. Thanks all for your help. Love the phone would have hated to return it.
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Can I ask what apn settings gave you data? It could help with my problem.

att tech support
jon7701 said:
Can I ask what apn settings gave you data? It could help with my problem.
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the link i got from the tech was the following, fixed my issue
https://
wwwDOTattDOTcom/
esupport/article.html#!/wireless/KB424489?source=redirect
sorry cant post links.... take the spaces and stuff out can i ask a more senior member to fix and repost?

I am getting band 17 on Att
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Sent from my XT1635-02 using Tapatalk

gavinswilson said:
the link i got from the tech was the following, fixed my issue
https://www.att.com/esupport/article.html#!/wireless/KB424489?source=redirect
sorry cant post links.... take the spaces and stuff out can i ask a more senior member to fix and repost?
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Fixed the link. The APN settings are correct, but my problem is from software corruption of some kind. I just have to wait until the RETUS stock firmware gets released...

IS there anyway to downgrade boot loader note 10 plus n975f

Is there any way to downgrade bootloader note 10 plus n975f, I have installed one UI 2.1 latest august security patch with N975FXXU6CTGD bootloader, Problem is My mobile is demo unit and someone installed patch with IMEI match in it and it was working fine until I did a mistake of upgrading. now its apparently not possible to downgrade or get back mobile networks back. Is there any solution to my problem. IMEI showing fine and when I check status by #*1234# and its showing status NG. I want to get come back the call option to make calls please help me if there any solutions. I have tried chimera and it says unsupported modem try to install different firmware. My humble request to XDA developer to look at it and get back to me with a solution, would be a genius act.
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All the stuff you mention sounds really shady, as all demo units are not to be used as regular ones, in other words, the demo units are issued to carriers and official distributors, and never intended to be sold to public, thence, having one is not normal, no help will be offered here, as it is illegal in most countries to tamper IMEI numbers, which is a common practice with stolen and red flagged devices, next time gather enough money to buy a legal device

@ farhan_ali790 - Some things you have been saying within regards to this phone are quite unsettling. Either your mistaking what phone you really have, a communication/detail issue, or you got the phone second hand and this is the way it was when you got it.
Either way the following will be of interest:
If you have a demo phone then it should not work on the cellular network. Those are for demonstration purposes so people can see what the phone looks like, see how the screen looks and get a chance to use the apps on it. For this reason the phone was made in such a way that the ability to connect to the cellular network will not work. If you truly and really do have a demo phone then it will not be able to access the cell network.
If your claim is you have a demo phone and that it is showing (or had the IMEI number changed/patched to show) as a N975F and your talking about a patched IMEI number then sorry, but your most likely out of luck here. The discussions of tampering or altering an IMEI number are not allowed due to such actions being illegal in a lot of places. Contact the person whom patched the IMEI for you for help on this one.
It has been mentioned numerous times that flashing a bootloader higher then what is currently on the phone is a one way street. You can not downgrade the bootloader. Please take the time to do some research on the subject if you have further questions on it.

Question SIM unlock

Is there a way to SIM unlock the at&t pixel 6 pro on here? Other than the obvious "pay the balance off"?

If there is, you can probably find the answer in one of the search results for AT&T in the title of a thread in this section.
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roirraW edor ehT said:
If there is, you can probably find the answer in one of the search results for AT&T in the title of a thread in this section.
View attachment 5536747
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I honestly don't see that from my end. This new layout is confusing AF. But I haven't been on xda in a long time until recently.

Nickdroid86 said:
I honestly don't see that from my end. This new layout is confusing AF. But I haven't been on xda in a long time until recently.
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Close to the upper right corner of the browser window. I understand. It's different. And yes, the app is way different, and almost every time on mobile I access XDA in Chrome too, and if necessary, in Desktop mode.

Thank you for your help, in the mean time I reached out to unlock base and they said this after failing to get an unlock code:

So I tried this method, and it works for at&t variant. But.... If I reset the phone, with my T-Mobile SIM inserted, it reverts back to locked with SIM error. Is there a way to make this permanent so I can reset if needed?

Nickdroid86 said:
So I tried this method, and it works for at&t variant. But.... If I reset the phone, with my T-Mobile SIM inserted, it reverts back to locked with SIM error. Is there a way to make this permanent so I can reset if needed?
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Please don't ask the same question in two different threads, especially so close together, but should always be avoided with only a rare exception. Other post -> https://forum.xda-developers.com/t/pixel-6-sim-unlock-workaround.4397465/post-86425807

roirraW edor ehT said:
Please don't ask the same question in two different threads, especially so close together, but should always be avoided with only a rare exception. Other post -> https://forum.xda-developers.com/t/pixel-6-sim-unlock-workaround.4397465/post-86425807
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Sorry about that, I already had this thread going first. Then posted on another found in the search per your request.

That's a pretty common situation to be in. Luckily, there are a few alternatives to consider. One option is to use an unlocking service. There are some pretty affordable unlocking services out there that can help you out. One that I've heard good things about is https://bestphoneunlock.com/unlockriver/ . They've got a solid reputation and offer unlocks for a wide range of devices, including the Pixel 6 Pro. Of course, you'll want to do your own research and make sure you're comfortable with any unlocking service before you hand over your hard-earned cash. But hey, it's worth a shot if you're looking to save some dough and get your Pixel 6 Pro unlocked.