Develop Bugs

how do i no if my phone is unlocked

i just bought my dash i downgraded from the g1 when i bought it the guy told me it was unlocked but he did say what kind so how do i find out and what version should i be on i check for updates through the phone but none came up

1) English please, you barely make sense.
2) Why did you downgrade?
3) Your phone is SIM unlocked when you can use any SIM card worldwide and the phone works. The only way for you to know this is to try a SIM from another carrier or even better, country.

meaning when i look on my phone for anything thats says its unlocked like when i go into sounds it says simtoolkit why and no but i did a master reset when i got it

cudahy_boy said:
meaning when i look on my phone for anything thats says its unlocked like when i go into sounds it says simtoolkit why and no but i did a master reset when i got it
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Click to collapse
If I deciphered you right, there isn't something that will tell you if its sim unlocked or app unlocked. You know on your own if you insert a SIM that isn't from your carrier, assuming you got it sim locked from the carrier and for app unlocking you can browse the forum. The rest means nothing.

Capitan Totti said:
If I deciphered you right, there isn't something that will tell you if its sim unlocked or app unlocked. You know on your own if you insert a SIM that isn't from your carrier, assuming you got it sim locked from the carrier and for app unlocking you can browse the forum. The rest means nothing.
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Click to collapse
Yes there is software to check sim unlock.
OP: i can't mem what it is but if head to "I'm Back" thread and PM DaveShaw he will know as was him who posted a while back.
If it's app unlock? you will soon find out via trying to flash or installing uncerified software.

Yes but you need to use an app, you can't just go on the phone on its own to check if its unlocked.
And I personally prefer to call T-Mobile and ask them for the code if I have to unlock it.

IMEI unknown, but phone working normally

Hi folks,
strange issue, I bought the HTC One X locked to our network, from another guy. It was rooted via HTC dev with Mike's revolution over it. Everything was ok, except it was locked to a network I dont want to use with.
So I tried with HTCSimUnlock.com, purchased unlock code, received it instantly, and tried several times to insert it. But every time, display showed "unknown password" and no luck.
What I discovered when I took to record the procedure of unsuccessful inserting the code to claim for money back, was that imei number is missing, and actually in the settings imei showe as "unknown". The most interesting thing is that phone is working normally, with of course, sim card from the network that the phone is locked to.
I wrote to HTCSimUnlock.com ,and waiting for the answer, but I dont know should I do something, try to get the RUU back to stock rom, or hard reset, but am little afraid that phone could stop working...

djurkash said:
Hi folks,
strange issue, I bought the HTC One X locked to our network, from another guy. It was rooted via HTC dev with Mike's revolution over it. Everything was ok, except it was locked to a network I dont want to use with.
So I tried with HTCSimUnlock.com, purchased unlock code, received it instantly, and tried several times to insert it. But every time, display showed "unknown password" and no luck.
What I discovered when I took to record the procedure of unsuccessful inserting the code to claim for money back, was that imei number is missing, and actually in the settings imei showe as "unknown". The most interesting thing is that phone is working normally, with of course, sim card from the network that the phone is locked to.
I wrote to HTCSimUnlock.com ,and waiting for the answer, but I dont know should I do something, try to get the RUU back to stock rom, or hard reset, but am little afraid that phone could stop working...
Click to expand...
Click to collapse
you could try the hard reset or RUU. whether the phone will stop working or not, i personally would try it, but you make your own choice. its a risk best thing i can suggest is play it safe, sell it on and get an unbranded one

How could you buy a unlock code without IMEI in the first place? And secondly, if you reboot into bootloader and choose "show barcode" then I guess there is a IMEI? In that case, just try a new rom, or better yet a ruu.

Download the appropriate Ruu and update it, this is a common issue on the S2 as well with ics during flashing, possibly someone updated it before you and it didnt go according to plan.

first time i have come across IMEI known, i know the serial number came back unkown once, try the RUU, like i said i dont think it will mess up your phone because your restoring it to factory conditions obviously.

kruppin said:
How could you buy a unlock code without IMEI in the first place? And secondly, if you reboot into bootloader and choose "show barcode" then I guess there is a IMEI? In that case, just try a new rom, or better yet a ruu.
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Click to collapse
no, imei was there in the first place, and after my attempt to unlock it, it dissapeared...
Then, I listened to you, and went to barcode, and imei was there normally.
Now, when I bootup, imei is here! Crazy staff...thanks...I really dont understand what happened...
graemeg said:
Download the appropriate Ruu and update it, this is a common issue on the S2 as well with ics during flashing, possibly someone updated it before you and it didnt go according to plan.
Click to expand...
Click to collapse
Check the answer above, everything was fine before I tried to enter unlock code...
xl VipeR lx said:
first time i have come across IMEI known, i know the serial number came back unkown once, try the RUU, like i said i dont think it will mess up your phone because your restoring it to factory conditions obviously.
Click to expand...
Click to collapse
After I did what kruppin said, imei restored...wierd!
Thank you guys all for the help...now, only thing left is to ask for refund fron htcsimunlock.com

Unlocking vs Unlocked Device

I purchased an att gs9+ directly from samsung, after that, I installed the unlocked firmware. Up to this point, I have used an att sim. When I tried to use a tmobile sim recently, I got a message saying "Invalid SIM card inserted - This SIM card is not supported. I was surprised as I thought it was unlocked since I installed the firmware. I then tried to install a version of the ATT firmare thinking I perhaps still needed to unlock it? At any rate, I tried but ODIN gave me the following error: FAIL!(auth).
So, first question is - If I installed unlocked firmware on my att gs9+, is it truly unlocked?
Second question, can I install the att version back again? Or perhaps the tmobile?
Finally - what does the ODIN error mean?
Thanks for taking the time to read,
Ben

benjiesell said:
I purchased an att gs9+ directly from samsung, after that, I installed the unlocked firmware. Up to this point, I have used an att sim. When I tried to use a tmobile sim recently, I got a message saying "Invalid SIM card inserted - This SIM card is not supported. I was surprised as I thought it was unlocked since I installed the firmware. I then tried to install a version of the ATT firmare thinking I perhaps still needed to unlock it? At any rate, I tried but ODIN gave me the following error: FAIL!(auth).
So, first question is - If I installed unlocked firmware on my att gs9+, is it truly unlocked?
Second question, can I install the att version back again? Or perhaps the tmobile?
Finally - what does the ODIN error mean?
Thanks for taking the time to read,
Ben
Click to expand...
Click to collapse
SIM unlock is a completely separate thing which you'd need to use an unlocking service for, nothing to do with the firmware
Check the bootloader version your phone is running now, vs the one you're trying to flash, you cannot downgrade the BL
Download mode will show BL:1 or BL:2)
Firmware shows it here
G960FXXU2BRGA
Flash an equal or higher BL

*Detection* said:
SIM unlock is a completely separate thing which you'd need to use an unlocking service for, nothing to do with the firmware
Check the bootloader version your phone is running now, vs the one you're trying to flash, you cannot downgrade the BL
Download mode will show BL:1 or BL:2)
Firmware shows it here
G960FXXU2BRGA
Flash an equal or higher BL
Click to expand...
Click to collapse
Ok, thanks for the response.
I can see that my bootloader version is 3. I dont see any ATT versions out there for 3 though. Am I correct in thinking that I would need an ATT firmware to even get the sim card unlock prompt? Thats really the issue for me.. I am unable to unlock the device despite trying to reinsert, and running those #XXX*# codes.

benjiesell said:
Ok, thanks for the response.
I can see that my bootloader version is 3. I dont see any ATT versions out there for 3 though. Am I correct in thinking that I would need an ATT firmware to even get the sim card unlock prompt? Thats really the issue for me.. I am unable to unlock the device despite trying to reinsert, and running those #XXX*# codes.
Click to expand...
Click to collapse
nvm...Im not sure if by dumb luck, or putting on several firmwares and clearing things out.. it finally prompted me. wtf...
Thanks for the advice. I learned a few things about the firmware.

benjiesell said:
nvm...Im not sure if by dumb luck, or putting on several firmwares and clearing things out.. it finally prompted me. wtf...
Thanks for the advice. I learned a few things about the firmware.
Click to expand...
Click to collapse
Good stuff :good:

Can You Unlock the Sprint Pixel 3a Bootloader?

Hello,
I recently purchased a used Sprint version of the Pixel 3a XL and after receiving it, I see that the bootloader is locked. My plan was to root this device and install a custom ROM to bring over to Verizon since all Verizon phone lock down the bootloader. Apparently I didn't do enough research as I assumed this bootloader would be unlocked.
After checking with Sprint this afternoon and confirming that there is no SIM lock, does anyone know if it is possible to unlock the bootloader? As mentioned, my goal is mostly to root the phone... then 'maybe' install a custom ROM.
Any help is greatly appreciated!

In dev options what does it say under oem unlocking? Is oem unlocking greyed out?

41rw4lk said:
In dev options what does it say under oem unlocking? Is oem unlocking greyed out?
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Click to collapse
Yes, unfortunately it is grayed out :-/

I would say that it is in fact sim locked. I have a TMO version and oem unlocking was greyed out for me. I had to hit up TMO and request a sim unlock to enable oem unlocking. You should persist and see if you can't get someone to sim unlock it. Might be worth popping the sim out and doing a factory reset, then boot it and see if oem unlocking is still greyed out, though it was for me. That was TMO though, but I doubt there is any difference as far as carrier locking is concerned. Does it say contact your carrier under oem unlocking? Another sign that it is sim locked.

41rw4lk said:
I would say that it is in fact sim locked. I have a TMO version and oem unlocking was greyed out for me. I had to hit up TMO and request a sim unlock to enable oem unlocking. You should persist and see if you can't get someone to sim unlock it. Might be worth popping the sim out and doing a factory reset, then boot it and see if oem unlocking is still greyed out, though it was for me. That was TMO though, but I doubt there is any difference as far as carrier locking is concerned. Does it say contact your carrier under oem unlocking? Another sign that it is sim locked.
Click to expand...
Click to collapse
Thanks for this... once I noticed that OEM locking was grayed out (and after doing some reading), I called up Sprint and provided them the IMEI number and they indicated that it should already be unlocked and I can take it to Verizon (I assume all this means the phone is paid off and it is carrier unlocked).
I purchased this device online and there was not any kind of SIM card shipped with it. Also, I have not yet tried activating it on Verizon as I wanted to see if I could unlock the bootloader first.

gil_happy said:
Thanks for this... once I noticed that OEM locking was grayed out (and after doing some reading), I called up Sprint and provided them the IMEI number and they indicated that it should already be unlocked and I can take it to Verizon (I assume all this means the phone is paid off and it is carrier unlocked).
I purchased this device online and there was not any kind of SIM card shipped with it. Also, I have not yet tried activating it on Verizon as I wanted to see if I could unlock the bootloader first.
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Click to collapse
Curious what Sprint number you called? They keep giving me the run around about needing the old account owners information and pin/password.

pyroboarder said:
Curious what Sprint number you called? They keep giving me the run around about needing the old account owners information and pin/password.
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Click to collapse
I don't remember exactly which number I called, but I think during the automated prompts, I stated 'IMEI'. Once I was connected, I told them that I was looking to purchase a second hand phone and I needed to verify some info and they told me (not sure if it sounded like I knew what I was doing and made it sound like I was calling for a good reason, etc). I'm sure you've been here as well:
https://www.sprint.com/en/shop/bring-your-phone-to-sprint.html

Apologies for thread necromancy...
The short answer is yes, you can unlock the bootloader of a Sprint Pixel 3a. There are some caveats:
Only the original owner of the phone can ask Sprint to unlock the device.
You must have paid off the device, it can't be carrier subsidized.
You have to be running the stock ROM for Sprint.
I just went through this with two pixel 3a's I bought from the sprint store. I paid full price, but they came locked anyway. Won't make that mistake again, I'll buy the unlocked variants from google direct or best buy or whatever.
Sprint customer service was very friendly when asking to unlock them since I'm still a customer. All they needed was the IMEI numbers after I'd authenticated myself to the agent. If they ask for the MEID instead, give them the IMEI regardless. That's the difference between a 5 minute and 35 minute call and a transfer to "advanced tech support." From the stock rom phone app, dial *#06# will bring them up.
Once the phone is carrier unlocked, the option to unlock the bootloader will work as you expect.
HTH.

Hi, I think you are referring to carrier lock vs bootloader lock.

Correct, I am. However, you can't unlock the bootloader on a stock pixel 3a without first carrier unlocking it. The installed version of android won't let you. That was discussed much earlier in the thread.

I should also add that the 3A has an e-SIM. In the past on CDMA carriers, running the stock ROM was a requirement to reactivate the device on a new carrier. Haven't tried that on a newer device, but I wouldn't bring a phone running LineageOS to Verizon and expect it to properly activate.

Junkeon said:
I should also add that the 3A has an e-SIM. In the past on CDMA carriers, running the stock ROM was a requirement to reactivate the device on a new carrier. Haven't tried that on a newer device, but I wouldn't bring a phone running LineageOS to Verizon and expect it to properly activate.
Click to expand...
Click to collapse
I tried reactivating my old 3A and lo, the lineageos 18.1 carrier sim activation tool gave me no joy after waiting hours for it to try. Reflashed to stock, and it activated within moments.

Need help network unlocking, flashed to stock

I got a new phone, the LM-G820UM AT&T version. I followed this guide: https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/ to flash the stock firmware. With my SIM card in it says "network locked", it doesn't prompt for the unlock code. I have the unlock code and I've tried the various unlock commands (2945#*71001# and 2945#*20001#), but nothing comes up when I do these. Do I need to get it back to the AT&T firmware to be able to unlock it? If so, how can I do this?

gunnerone007 said:
I got a new phone, the LM-G820UM AT&T version. I followed this guide: https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/ to flash the stock firmware. With my SIM card in it says "network locked", it doesn't prompt for the unlock code. I have the unlock code and I've tried the various unlock commands (2945#*71001# and 2945#*20001#), but nothing comes up when I do these. Do I need to get it back to the AT&T firmware to be able to unlock it? If so, how can I do this?
Click to expand...
Click to collapse
wow, yeah, that's unfortunate. First, yes, it's the at&t firmware that the unlock code works with, not any other firmware.
second, at&t doesn't make their kdz available, so you have no easy way to get back to their firmware.
you might get lucky and find someone who has backed up all their partitions from at&t. Then u would flash ea one back via qfil.
Important lesson: don't buy a locked phone. if u get a locked phone, don't to anything to the firmware until u unlock the phone.
cheers

@AsItLies would this phone work in it's current state with AT&T?

gunnerone007 said:
@AsItLies would this phone work in it's current state with AT&T?
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Click to collapse
To the best of my knowledge, no. At&t is one of the carriers that has restrictions for their networks. Last I read (have never used them personally), they only allow phones that have their IMEI (they check that), and it's using their ROM, to access volte and vowifi.
so, would it work? yes and no. Volte and Vowifi may or may not be important to you.
Additionally, I'm absolutely no expert with at&t, so u might just try and find out, my info could be outdated.