Is my phone unlocked? - G1 Q&A, Help & Troubleshooting

I have a g1 which is rooted, it is running dark hero theme with cyanogen 3.6.8.1 and it says android dev 1 phone. i was wondering if my phone was unlocked i heard about this is this true because im giving my g1 to my friend and he has at&t.
btw it has haykuros special spl

281 said:
I have a g1 which is rooted, it is running dark hero theme with cyanogen 3.6.8.1 and it says android dev 1 phone. i was wondering if my phone was unlocked i heard about this is this true because im giving my g1 to my friend and he has at&t.
btw it has haykuros special spl
Click to expand...
Click to collapse
No it won't be unlocked, AFAIK neither the firmware are SPL can affect the unlock. You will need to buy an unlock from a website that will take your IMEI and generate the code. Either that or tell tmo you're leaving the country and you want to use a local sim, it should come within 2 weeks.

Oh but earlier i read that having the eng bootloader/spl will have the phone unlocked, it is used as android dev phone and it is flashed to the g1 to be unlocked it makes sense right?

281 said:
Oh but earlier i read that having the eng bootloader/spl will have the phone unlocked, it is used as android dev phone and it is flashed to the g1 to be unlocked it makes sense right?
Click to expand...
Click to collapse
The bootloader/spl has nothing to do with the SIM lock. As above poster said, unless your phone came SIM unlocked (and if it is a T-Mobile G1 then it is SIM locked) you will either have to get an SIM unlock code from T-Mo (very easy) or buy one online.

ok thanks just wondering

like in previous posts you can call t mobile and they will unlock it. for Free

lol i can see where you get the confusion though, but it is NOT unlocked. A tmobile rep told me to root the phone and it would unlock it, but the lock is actually deeper than the SPL and nand flash

Related

what happen if unlocked phone is rooted and upgrade to custom rom

i buy the phone HTC DREAM from the internet (i'm from malaysia) so i don't have T MOBILE SIM, but it's already unlocked.
what happen if i rooted or flash the phone with custom rom such as JACHeroski and etc.
will the phone become locked again ??
if the phone is locked, can i still able to like root and flash the phone ??
a rooted phone with custom rom, can eliminate the unlocking process ???
thx in advance
sorry for my poor english
keatliang2005 said:
i buy the phone HTC DREAM from the internet (i'm from malaysia) so i don't have T MOBILE SIM, but it's already unlocked.
what happen if i rooted or flash the phone with custom rom such as JACHeroski and etc.
will the phone become locked again ??
if the phone is locked, can i still able to like root and flash the phone ??
a rooted phone with custom rom, can eliminate the unlocking process ???
thx in advance
sorry for my poor english
Click to expand...
Click to collapse
No. A custom ROM wouldn't lock or unlock the phone. It can be unlocked for any SIM and still be stock firmware, it can also be unlocked for any SIM and have a custom rom.
The two things are completely different.
Hope this helps.
You can do whatever you want to any rom, and that won't affect anything that makes it unlocked
thx for replying,
so meaning, currently the phone is unlocked, and i downgrade to RC29
so it wont be locked again ?
because need to downgrade to root-ed the firmware....
is this mean, downgrade my unlocked phone firmware to RC29
in the process, it will not reset my phone from unlock back to lock status ??
if it will not make my phone locked back again during the process
and i success downgrade to RC29 i can gain root access, then i can update to custom firmware
so another question, in the upgrading process (flasing to custom firmware or cupcake 1.5) will it set back from unlock to locked ??
sorry for my bad english
appreciate for replying, i need to know before i done anything
in the process,
Hi. I also have an unlocked phone. It was unlocked prior I downgraded it, and flashed new custom roms, and it is still unlocked. As the others said no need to worry, if i'm right the locking thing is in deeper level. Of course everything you do with your phone is your responsibility.
eami said:
Hi. I also have an unlocked phone. It was unlocked prior I downgraded it, and flashed new custom roms, and it is still unlocked. As the others said no need to worry, if i'm right the locking thing is in deeper level. Of course everything you do with your phone is your responsibility.
Click to expand...
Click to collapse
thx for the reply, now i can do the firmware flashing
unlock after root?
NPerry said:
No. A custom ROM wouldn't lock or unlock the phone. It can be unlocked for any SIM and still be stock firmware, it can also be unlocked for any SIM and have a custom rom.
The two things are completely different.
Hope this helps.
Click to expand...
Click to collapse
Can T-mobile still unlock the phone after I rooted it or would they know that I put a custom rom on it??
c_licious said:
Can T-mobile still unlock the phone after I rooted it or would they know that I put a custom rom on it??
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Click to collapse
Yes, you can still unlock it through T-Mo. No one at T-Mo needs to have physical access to your phone, they can give you an unlock code over the phone.
c_licious said:
Can T-mobile still unlock the phone after I rooted it or would they know that I put a custom rom on it??
Click to expand...
Click to collapse
One has nothing to do with the other. ROMs have nothing to do with the SIM cards and SIM cards have nothing to do with ROMs. T-Mobile isn't going to come to your house and spank you for having a custom ROM because they "know"
DirectMatrix said:
One has nothing to do with the other. ROMs have nothing to do with the SIM cards and SIM cards have nothing to do with ROMs. T-Mobile isn't going to come to your house and spank you for having a custom ROM because they "know"
Click to expand...
Click to collapse
Hmm highly unfortunate. Wouldn't have minded a little love tap from Cindy with Customer Service LOL
Thanks buddy!

Will Flashing a New ROM Unlock G1?

Hi,
I was wondering if a G1 locked to T-mobile be unlocked if flashed with a new ROM. Apparently, they could not provide us with an unlock code for the phone. I am not very familiar to the new HTC phones, but older ones (very) under windows mobile as far as I recall, can be unlocked when flashed with a new ROM.
I hope someone can help me regarding this. Thanks!
Nope, afraid not its still sim locked.
aw.. that's disappointing.. well, thanks anyway!
don't be ,just call up T-mobile and get the unlock code for free

Unlocked Bootloader/Unlocked Phone?

Im planning to buy an unlocked version on the nexus straight from Google.com. My question is since its going to be an unlocked version does it mean it will also have an unlocked bootloader?? I know I need to unlock the bootloader so I can root and eventually install ROMS. Also, is it true that IF i need to unlock the bootloader GOOGLE will void my warranty?
Help is appreciated.
daraj said:
Im planning to buy an unlocked version on the nexus straight from Google.com. My question is since its going to be an unlocked version does it mean it will also have an unlocked bootloader?? I know I need to unlock the bootloader so I can root and eventually install ROMS. Also, is it true that IF i need to unlock the bootloader GOOGLE will void my warranty?
Help is appreciated.
Click to expand...
Click to collapse
The bootloader is not unlocked out of the box however once you have fastboot setup it's easily unlocked with one command while in the bootloader.
Yes. It voids your warranty.
uberingram said:
The bootloader is not unlocked out of the box however once you have fastboot setup it's easily unlocked with one command while in the bootloader.
Yes. It voids your warranty.
Click to expand...
Click to collapse
So although its an unlocked version still the bootloader is locked? Maybe Im getting confused between an unlocked phone and an unlocked bootloader. No relation?
daraj said:
So although its an unlocked version still the bootloader is locked? Maybe Im getting confused between an unlocked phone and an unlocked bootloader. No relation?
Click to expand...
Click to collapse
Unlocked phone = not SIM locked to any particular provider.
Unlocked bootloader = you can flash whatever software you like on the phone = void warranty.
packetlss said:
Unlocked phone = not SIM locked to any particular provider.
Unlocked bootloader = you can flash whatever software you like on the phone = void warranty.
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Click to collapse
Great I guess that answers my questions. IS there a way to reverse it back to the Google locked boot-loader in case I need to return?
daraj said:
Great I guess that answers my questions. IS there a way to reverse it back to the Google locked boot-loader in case I need to return?
Click to expand...
Click to collapse
At the moment, no.
this should amuse you...
the $530 "unlocked" phone from Google is Sim unlocked...but so is the $180 TMO phone from Google For kicks I put my ATT Sim in my friend's TMO N1 and as expected, it worked just fine on ATT.
Not sure why they are calling it unlocked since all being sold are unlocked (unless my friend magically received the wrong phone) but I guess if that helps move units...why not. Perhaps they mean you are not locked into any contracts by purchasing it
yea that's wat is meant....
Even the subsidized version from Tmobile is not sim locked. Same phone, just get it at a cheaper price.
Moved to Q&A
deprecate said:
this should amuse you...
the $530 "unlocked" phone from Google is Sim unlocked...but so is the $180 TMO phone from Google For kicks I put my ATT Sim in my friend's TMO N1 and as expected, it worked just fine on ATT.
Not sure why they are calling it unlocked since all being sold are unlocked (unless my friend magically received the wrong phone) but I guess if that helps move units...why not. Perhaps they mean you are not locked into any contracts by purchasing it
Click to expand...
Click to collapse
The "version" you get for $180 is the exact same one you get with $530. No one ever said it was locked. What they are doing is for the $180 price, you are re-locking yourself into another 2 year contract with T-Mobile and getting the phone at a subsidized price.
Unlike the phone they sell in the stores, this will be SIM unlocked since it is NOT T-Mobile branded.
T-Mobile (as well as any other carrier) will see this as a "gray market" device and will not support it, although, they will allow it on their network.
Hope this clarification helps.

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?

Carrier unlock a G920T permanently

Hi guys,
I need some clarification re: carrier unlocking and how it works. I recently purchased a carrier unlocked G920T, and I was going to start messing with custom roms/kernels and other goodies. My question is: Will the phone revert back to being locked if I do a factory reset or if I unlock the bootloader and flash custom roms?
I'm not a T-Mobile user, so I can't get another unlock code from them.
Thanks!!
The G920T has a carrier unlocked version, which is probably the one you have, not the T-Mobile one. Even if it is, usually a carrier unlocked device will remain unlocked forever unless it was unlocked using a different or hacky method, then there is a possibility that it will relock
Sent from my SM-G920T using Tapatalk
Yeahh go ahead, mess with it. when it is carrier unlocked, the software doesn't affect it, unless it is a hacky method like @serio22 said, but there isnt such hacky method for the GS6 so have fun.
If it is a G920T (the T means it's from T-Mobile), then carrier unlocking is not a guaranteed state. I paid T-Mobile the full price to get my GS6 and they "permanently" unlocked it. Then after a OTA software patch all of a sudden it locked itself again and I couldn't use my phone for 2 days while they tried to unlock it. T-Mobile's new device unlocking uses a new system which has the phone "phone home" to their servers to check if you're allowed to use it outside of their network. It happened again when I accepted the Android 5.1.1 OTA. So...beware of T-Mobile's not-very-permanent permanent carrier unlocking.
I am living in india..
My relatives brought me the t model ( i wanted f model instead of i sold in india for quicker updates but got t model...lol )
Anyways,
The moment i inserted my sim, it worked like a charm so its unlocked at the moment.
I dont know how they made payment their or how it was unlocked, but the way used must be legit coz its still stock at the moment without root / recovery etc. .
I read humo saying it can get locked again...
My main question, what are the odds of that happening?
Also since i live in india, i wont be able to contact t mobile via phone/walk in, are there ways i can get it unlocked again?
I dont have the bill too if it matters
i believe they have an app that unlock ur device since that is how i unlocked mine. if not u can try to contact customer service online since u r not in US.
With device unlock app , will i have to pay for unlock my s6 g920t or it'll unlock my device for free.
I have an unlocked s6 tmobile from usa, i heard the flashing stock rom will relock the device.
If the phone will relock then how can i unlock it again?
I'm not sure about flashing a stock ROM relocking the device. Mine re-locked when T-Mobile sent Android security patches. This week I did the Android 6.0 OTA update and it has remained unlocked.
Hey guys! i have a factory unlocked version of s6 tmobile, my question is if i can flash the tmobile MM firmware . My model says "country: cellular south" and the firmware country says us tmobile, so i dont know if i can flash without any problems, (Sorry for my english it sucks) thanks !
polipol15 said:
Hey guys! i have a factory unlocked version of s6 tmobile, my question is if i can flash the tmobile MM firmware . My model says "country: cellular south" and the firmware country says us tmobile, so i dont know if i can flash without any problems, (Sorry for my english it sucks) thanks !
Click to expand...
Click to collapse
Polio, i have the same phone and i flashed MM without any problems. Check out the q&a section here and theres a recent thread that talks about how to that refers to a reddit post
Sent from my SM-G920T using XDA-Developers mobile app
bitbank said:
If it is a G920T (the T means it's from T-Mobile), then carrier unlocking is not a guaranteed state. I paid T-Mobile the full price to get my GS6 and they "permanently" unlocked it. Then after a OTA software patch all of a sudden it locked itself again and I couldn't use my phone for 2 days while they tried to unlock it. T-Mobile's new device unlocking uses a new system which has the phone "phone home" to their servers to check if you're allowed to use it outside of their network. It happened again when I accepted the Android 5.1.1 OTA. So...beware of T-Mobile's not-very-permanent permanent carrier unlocking.
Click to expand...
Click to collapse
How did you solve this? My phone stopped working flashed newest (G920TUES5DPK1_G920TXAR5DPK1_G920TUES5DPK1_HOME.tar.rar) and i can't go to older version as that gives me ;
Code:
SW REV. CHECK FAIL DEVICE: 5 BINARY: 3
Christiaanjadieja said:
How did you solve this? My phone stopped working flashed newest (G920TUES5DPK1_G920TXAR5DPK1_G920TUES5DPK1_HOME.tar.rar) and i can't go to older version as that gives me ;
Code:
SW REV. CHECK FAIL DEVICE: 5 BINARY: 3
Click to expand...
Click to collapse
You can't downgrade your bootloader so you'd have to pay to unlock it unfortunately
crixley said:
You can't downgrade your bootloader so you'd have to pay to unlock it unfortunately
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Click to collapse
Got it done remotely!
I have a Galaxy S6 (SM-G920T) from T-Mobile. It was locked. But it has an "Unlock" app installed by default. I used it and phone was instantly unlocked! Fast, easy and free!
I used to live in the US for a year and bought a g920T. Since i had the requirements i Unlocked and came back to my country but because of a problem, I had to install a stock firmware and now the unlock is gone.
So i'm wondering, if someone with a unlocked phone made firmware backup, remove the IMEI, and send it online would it work? I mean, right now it works just fine, so i can backup my IMEI and ID and just restore it if needed.
Please help
danveer said:
I am living in india..
My relatives brought me the t model ( i wanted f model instead of i sold in india for quicker updates but got t model...lol )
Anyways,
The moment i inserted my sim, it worked like a charm so its unlocked at the moment.
I dont know how they made payment their or how it was unlocked, but the way used must be legit coz its still stock at the moment without root / recovery etc. .
I read humo saying it can get locked again...
My main question, what are the odds of that happening?
Also since i live in india, i wont be able to contact t mobile via phone/walk in, are there ways i can get it unlocked again?
I dont have the bill too if it matters
Click to expand...
Click to collapse
I am in same scenario as you are/were,I am also having s6 (Tmobile) please tell me did flashing relocked your device?
So far no
I have flashed recovery - custom rom - kernel
Messed up sometimes so even went back to stock using odin then flashed everything again
Its still unkocked
Hello! I've bought my S6 (SM-G920T) as carrier unlocked but when my pcb has burned due to factory fault and sent my phone to Samsung they gave me again it was locked. I'm from Argentina and I haven't T-Mobile sim to unlock with default application. I've called to my carrier in Argentina and they said me the IMEI it's unlocked but my phone still sais it's network blocked... Can anybody help me?
vita_lp said:
Hello! I've bought my S6 (SM-G920T) as carrier unlocked but when my pcb has burned due to factory fault and sent my phone to Samsung they gave me again it was locked. I'm from Argentina and I haven't T-Mobile sim to unlock with default application. I've called to my carrier in Argentina and they said me the IMEI it's unlocked but my phone still sais it's network blocked... Can anybody help me?
Click to expand...
Click to collapse
Have you tried with the tmobile device unloced app.? If that doesnt work then head over to this awesome guy, he can help you unlock it remotely. https://forum.xda-developers.com/tmobile-galaxy-s6/general/sim-unlock-honestly-free-t3601740

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