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[Q] Custom rom in Sim locked Desire S

Hey,
Do sim locked Desire S phones allow to install custom roms? If so, any different procedure from the normal?
Quite a few threads about unlocking bootloader, etc.. I have to say I feel a bit lost and the one's i've read to not approach my doubt. (Perhaps i've been unlucky.. i really haven't checked every single thread.)
EDIT: That said, i'm not looking for full explanation and procedures... just want to know if it's possible. If so i'll take my time reading everything i can find well and learning by doing. I'm pretty sure that i can find all the procedures in here. Looking for a quick yes or no
Best Regards,
Daniel

dan_alexandre said:
Hey,
Do sim locked Desire S phones allow to install custom roms? If so, any different procedure from the normal?
Quite a few threads about unlocking bootloader, etc.. I have to say I feel a bit lost and the one's i've read to not approach my doubt. (Perhaps i've been unlucky.. i really haven't checked every single thread.)
EDIT: That said, i'm not looking for full explanation and procedures... just want to know if it's possible. If so i'll take my time reading everything i can find well and learning by doing. I'm pretty sure that i can find all the procedures in here. Looking for a quick yes or no
Best Regards,
Daniel
Click to expand...
Click to collapse
as far as i know a sim lock has nothing to do with locked bootloader, s-on or s-off, root or not root, flashing custom roms.
so you can do anything you want without any difference. just follow the threads and guides, like you said.
btw. i think if you s-off, root and flash a custom rom you will loose your sim-lock anyway. but i
dont know which of these steps will do it
welcome and have fun

Is this a confirmed fact? The unlocking of the sim?
Always imagined it to be something quite deep in the phone, used to have a ZTE blade based phone that was unlocked by operator code... the moment i got back to stock rom the device got locked again.
I really am in blank of how sim locking works.
Thanks for the quick answer and the welcome

dan_alexandre said:
the moment i got back to stock rom the device got locked again.
Click to expand...
Click to collapse
thats normal behaviour.
and i have red several times that flashing another rom will unlock your sim-lock,
i wouldn't give my life for it, but im more or less sure
and i DEFINETLY AM SURE that you will not gonna have problems while rooting etc. caused by your sim-lock. thats (again) for sure

I have always been under the impression that flashing a custom rom does not effect the sim lock, I have never unlocked the sim by flashing a rom.
Although I have now unlocked the sim by getting a code from ebay.

pandollar said:
I have always been under the impression that flashing a custom rom does not effect the sim lock, I have never unlocked the sim by flashing a rom.
Although I have now unlocked the sim by getting a code from ebay.
Click to expand...
Click to collapse
It's not a locked Sim, it's a Sim-locked phone, it does only work with one Sim
Sent my thoughts to your head with XDA App

[Q] SIM unlocking the T-Mobile version of the Xperia Z3 (D6616)

Hi guys, well the thing is that I'm planning on getting the T-Mobile variant of the Z3 (D6616) but I would like to know if there is a root method for Lollipop?, since the update is already out. I have have searched all over the internet looking for answers but I couldn't find anything (only for KitKat; I know the LP update was released almost 2 weeks ago). I don't if there's something else necessary (apart from getting root access) to be able to SIM unlock this phone, I don't care about custom ROM's, kernels or any other kind of mod that requires the bootloader to be unlocked. Like I said, I just want to SIM unlock it and use the root access for Titanium Backup and maybe disable or delete the T-Mobile apps. Thanks in advance.

AntonyOrtega said:
Hi guys, well the thing is that I'm planning on getting the T-Mobile variant of the Z3 (D6616) but I would like to know if there is a root method for Lollipop?, since the update is already out. I have have searched all over the internet looking for answers but I couldn't find anything (only for KitKat; I know the LP update was released almost 2 weeks ago). I don't if there's something else necessary (apart from getting root access) to be able to SIM unlock this phone, I don't care about custom ROM's, kernels or any other kind of mod that requires the bootloader to be unlocked. Like I said, I just want to SIM unlock it and use the root access for Titanium Backup and maybe disable or delete the T-Mobile apps. Thanks in advance.
Click to expand...
Click to collapse
Yes there is root for it but I doubt you will be able to sim unlock it unless you pay full price for it from tmobile and us the sim unlock app that's on the phone already.

Lobo Lansky said:
Yes there is root for it but I doubt you will be able to sim unlock it unless you pay full price for it from tmobile and us the sim unlock app that's on the phone already.
Click to expand...
Click to collapse
That's the problem, because there's no way to officially get the Z3 from them (they only have the original Z and the Z1S and the only way to get one is from eBay) and I'm not a T-Mobile costumer. I would like to know if it's possible to get it unlocked with a third party unlock service.

I just bought one for use on AT&T and I'm also looking to sim unlock. I'll update when I find out more.
Sent from my SAMSUNG-SM-N910A using Tapatalk

If you are one AT&T better to get international version as the 700 Mhz LTE band is different from the TMO version's which is TMO specific. (Band 12)
For indoor use that makes a big difference in signal.
The low bands have better penetration. I am on T-Mobile so for me it's an advantage to use the D6616.
The D6603 (international) supports AT&T 700Mhz in addition to the others.
As for unlocking TMO version, for me I had to call TMO as the app did not work. They will only unlock after 40 days of device use on your account. It's done over the air...
So give it to a TMO customer for temporary use and unlock assuming IMEI is not blocked.

Root on Xperia D6616 T-mobile
AntonyOrtega said:
Hi guys, well the thing is that I'm planning on getting the T-Mobile variant of the Z3 (D6616) but I would like to know if there is a root method for Lollipop?, since the update is already out. I have have searched all over the internet looking for answers but I couldn't find anything (only for KitKat; I know the LP update was released almost 2 weeks ago). I don't if there's something else necessary (apart from getting root access) to be able to SIM unlock this phone, I don't care about custom ROM's, kernels or any other kind of mod that requires the bootloader to be unlocked. Like I said, I just want to SIM unlock it and use the root access for Titanium Backup and maybe disable or delete the T-Mobile apps. Thanks in advance.
Click to expand...
Click to collapse
Hi i have managed to Access Root, Deleted T-mobile Applications But Still No success, Have you got any luck to do it ?

mnszaidi said:
Hi i have managed to Access Root, Deleted T-mobile Applications But Still No success, Have you got any luck to do it ?
Click to expand...
Click to collapse
Maybe if you can get the HiddenSIMUnlockMenu.apk (Or whatever the app is named on Xperias) from another Xperia?

AntonyOrtega said:
Maybe if you can get the HiddenSIMUnlockMenu.apk (Or whatever the app is named on Xperias) from another Xperia?
Click to expand...
Click to collapse
i have found the hidden menu too. and now i am goi ng to explore my phone from PC and hope i will found it and enable it. i think after Enabling it i will be able to use 3rd party unlocking code to unlock. See below Image Push thanks if it helps you

hi
hi, already posted same reply in another sim unlock thread.
i have a d6616 tmobile version and bought the unlock code, non able to input the code, and not able to unlock with the stock app, dual recovery installed and rooted already, is there a way to put the simunlockapp.apk in the system and then using titanium backup pro, to make it internal so after rebooting, simunlock code prompting?
or to flash a rom that prompts the code
or is there any metropcs z3 rom that surely can be flashed even with locked bootloader to tmobile version?
any help
than you very much indeed

Hi, I'm in the exact same situation, Bought a Tmobile Z3 through Ebay, didn't know it wasn't possible to unlocking it by buying an unlock code... so I did, now I have the phone and the unlocking code for nothing... some help here please? thanks in advance.

Lrclaros said:
Hi, I'm in the exact same situation, Bought a Tmobile Z3 through Ebay, didn't know it wasn't possible to unlocking it by buying an unlock code... so I did, now I have the phone and the unlocking code for nothing... some help here please? thanks in advance.
Click to expand...
Click to collapse
Same boat. I bought a brand new one with film on it. But it was a phone only, no box or accessories. IMEI was a separate sticker (4 pieces). I tried to unlock a legal way but T-Mobile rep told me it's not in their system. It has printed T-Mobile logo in the back. I also tried official unlock app without success. They advised me to call Sony directly and ask what carrier it belongs to lol. Great phone, much better battery than G3 but unlocked phone is a must. I decline phones with 2k screens. I can't see no difference between Z3 and G3 screens.

I like to think this would be simple. Perhaps you can help?

Here's what I got. ATT LG G3 running stock Marshmallow D85030p with what I presume is the newest security patch (June 2016)
At this point it's not on a carrier but it's locked by ATT. They kept my number as well.. A number that was mine from previous carriers.
Will I be able to root, install TWRP, and unlock this device to use on a prepaid carrier? Keep in mind this same phone has been flashed, rooted and ran recovery mods and ROMs before. Still in perfect working condition after receiving it's last stock OTA.

jlgarr86 said:
Here's what I got. ATT LG G3 running stock Marshmallow D85030p with what I presume is the newest security patch (June 2016)
At this point it's not on a carrier but it's locked by ATT. They kept my number as well.. A number that was mine from previous carriers.
Will I be able to root, install TWRP, and unlock this device to use on a prepaid carrier? Keep in mind this same phone has been flashed, rooted and ran recovery mods and ROMs before. Still in perfect working condition after receiving it's last stock OTA.
Click to expand...
Click to collapse
First of all what do you mean they kept your number? Did you cancel? Unpaid bill? That would be a deciding factor on how to go about things.
But no root cannot unlock your device
1. If you left AT&T in good standing AT&T will unlock the device for free. Even if you don't have any account.
2. If not then you can get it unlocked for a few dollars from some eBay sellers.
3. What prepaid carrier? If Any provider that runs on AT&Ts network you don't have to get it unlocked, it will work fine with Go Phone, Cricket , H2O and many others that run on AT&Ts network.
But a note if it's no longer on AT&T due to unpaid bill, or on bad terms remember the device may no longer work on any GSM carrier within the USA due to AT&T will blacklist it.
Sent from my iPhone using Tapatalk

hyelton said:
First of all what do you mean they kept your number? Did you cancel? Unpaid bill? That would be a deciding factor on how to go about things.
But no root cannot unlock your device
1. If you left AT&T in good standing AT&T will unlock the device for free. Even if you don't have any account.
2. If not then you can get it unlocked for a few dollars from some eBay sellers.
3. What prepaid carrier? If Any provider that runs on AT&Ts network you don't have to get it unlocked, it will work fine with Go Phone, Cricket , H2O and many others that run on AT&Ts network.
But a note if it's no longer on AT&T due to unpaid bill, or on bad terms remember the device may no longer work on any GSM carrier within the USA due to AT&T will blacklist it.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
I understand root alone won't unlock it. With all that being said can I still root and flash a recovery method that are permanent? Does MM still not have a reliable root or recovery method?

jlgarr86 said:
I understand root alone won't unlock it. With all that being said can I still root and flash a recovery method that are permanent? Does MM still not have a reliable root or recovery method?
Click to expand...
Click to collapse
You would need to downgrade to KitKat to do that. But remember once you downgrade you'll no longer be able to go back to any official firmware Past KitKat without an AT&T SIM card of some sort to ota update it.
Also remember if you get an unlock code you need to be running stock D850 firmware or else you won't be able to enter the unlock code.
Sent from my iPhone using Tapatalk

hyelton said:
You would need to downgrade to KitKat to do that. But remember once you downgrade you'll no longer be able to go back to any official firmware Past KitKat without an AT&T SIM card of some sort to ota update it.
Also remember if you get an unlock code you need to be running stock D850 firmware or else you won't be able to enter the unlock code.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Are there any unofficial MM or Lollipop ROMs that are worth looking into? I couldn't care less if it's official honestly. And that last bit you said, you mean if I wanted a phone unlocked I'd have to basically wipe my phone?

jlgarr86 said:
Are there any unofficial MM or Lollipop ROMs that are worth looking into? I couldn't care less if it's official honestly. And that last bit you said, you mean if I wanted a phone unlocked I'd have to basically wipe my phone?
Click to expand...
Click to collapse
If you unlock before you leave behind stock then no you don't have to wipe. Once you install any custom ROM, your only option to unlock at that point is to revert back to stock, which means wiping.

aybarrap1 said:
If you unlock before you leave behind stock then no you don't have to wipe. Once you install any custom ROM, your only option to unlock at that point is to revert back to stock, which means wiping.
Click to expand...
Click to collapse
Can I unlock it myself?

jlgarr86 said:
Can I unlock it myself?
Click to expand...
Click to collapse
Yes you can, if you are on stock. You will need to get the unlock code from AT&T, be on stock firmware, and have an active SIM card from another carrier (I.e. T-Mobile or of it's MVNOs like MetroPCS). Once you have the unlock code, put in the SIM card, turn on the phone, and you will get the prompts for the code you got. Then you're done.

Sim unlock solution developmet for T-Mobile S7 G930T

Hello everyone
Here's my problem and my idea:
I bought T-Mobile Galaxy S7 on ebay about a week ago (Stock QC1 firmware) and now I'm in need of sim unlock, which I can't, my device's unlock fails every time through Device Unlock app
I've searched through the web past two days and found no solution whatsoever. Every service is down for now and I cannot find any ways to unlock my phone.
So, here's what I thought: Maybe here's someone who can actually develop or figure out a solution for this since many solutions are available for S6/S6e and many other t mobile phones, but not for S7.
I can be tester and provide any files/dumps if needed or anything you guys ask.
I believe I'm not the only one with this problem and if we try hard enough, we can do this. Many people can benefit from this also, so let's be useful.
To mods, if you believe this is a wrong place to post this thread, please move it where it belongs.
Thanks to you all.

So your idea is just to look at other device solutions? [emoji1]
Sent from my iPhone using Tapatalk

I guess that's the part of it
Cheers

We probably wont see a direct unlock solution on these T-Mobile/MetroPCS QUALCOMM based Galaxys for some time. The older models you mentioned are Exynos based CPUs, they are being unlocked all the time. Unlock app or trusted server for imei unlock is our only solutions for now.
Sent from my SM-N920P using Tapatalk

installerrev said:
Hello everyone
Here's my problem and my idea:
I bought T-Mobile Galaxy S7 on ebay about a week ago (Stock QC1 firmware) and now I'm in need of sim unlock, which I can't, my device's unlock fails every time through Device Unlock app
I've searched through the web past two days and found no solution whatsoever. Every service is down for now and I cannot find any ways to unlock my phone.
So, here's what I thought: Maybe here's someone who can actually develop or figure out a solution for this since many solutions are available for S6/S6e and many other t mobile phones, but not for S7.
I can be tester and provide any files/dumps if needed or anything you guys ask.
I believe I'm not the only one with this problem and if we try hard enough, we can do this. Many people can benefit from this also, so let's be useful.
To mods, if you believe this is a wrong place to post this thread, please move where it belongs.
Thanks to you all.
Click to expand...
Click to collapse
I stand with you. I think a bounty would be appropriate. I go loads of s7 and s7 edge to unlock. I may be at a huge loss if no unlock comes
---------- Post added at 10:13 PM ---------- Previous post was at 10:12 PM ----------
stuntman112 said:
We probably wont see a direct unlock solution on these T-Mobile/MetroPCS QUALCOMM based Galaxys for some time. The older models you mentioned are Exynos based CPUs, they are being unlocked all the time. Unlock app or trusted server for imei unlock is our only solutions for now.
Sent from my SM-N920P using Tapatalk
Click to expand...
Click to collapse
I believe of we have alot of people working toward it something interesting would come out if it. Considering s8 is also there, more people Wil be requiring unlock. It's only a matter of time

Factory reset your phone, then try to use the device unlock. You can select temporary unlock or permanent unlock. Once you are done you will have a sim unlocked device.

stuntman112 said:
We probably wont see a direct unlock solution on these T-Mobile/MetroPCS QUALCOMM based Galaxys for some time. The older models you mentioned are Exynos based CPUs, they are being unlocked all the time. Unlock app or trusted server for imei unlock is our only solutions for now.
Sent from my SM-N920P using Tapatalk
Click to expand...
Click to collapse
Actually, MetroPCS s7 & s7e device unlock is available for $20 and Qualcomm S6 and below is also unlockable, there are many remote unlock services on ebay/various websites for those devices.
I've been* trying to unlock my S7 since April but no luck.
I know this issues with t-mobile Quallcomm Galaxys are about locked bootloader but that's the only thing I found out.
If someone can make bounty pool or something similar, I would gladly participate.
*edit

KillerClaw321 said:
Factory reset your phone, then try to use the device unlock. You can select temporary unlock or permanent unlock. Once you are done you will have a sim unlocked device.
Click to expand...
Click to collapse
Lol. How many factory resets required? I still haven't gotten unlocked.

jazzdglass said:
Lol. How many factory resets required? I still haven't gotten unlocked.
Click to expand...
Click to collapse
You using the latest version not rooted?

KillerClaw321 said:
You using the latest version not rooted?
Click to expand...
Click to collapse
Yup. I'm on android 7.0. I could go back to 6.0.1 too. Why do you think this is a method to unlock? You need to connect to Tmobile database to unlock. Merely factory reset won't do anything. It's all in the cloud

jazzdglass said:
Yup. I'm on android 7.0. I could go back to 6.0.1 too. Why do you think this is a method to unlock? You need to connect to Tmobile database to unlock. Merely factory reset won't do anything. It's all in the cloud
Click to expand...
Click to collapse
I know, however when I had issues with the device unlock app a fresh install of the latest version worked and I was able to temporarily unlock for a month.

I did it just now after a factory reset, rooted and running no BS Rom...

T-mobile
I went through the same ordeal. I had to actually call t-mobile and get a representative to unlock it using the phone's IMEI number so it could be used on all carriers. Call them, I'm sure they will unlock it for you. That t-mobile unlock app doesn't do anything. Also under developer options, you need to check OEM unlock before you call t-mobile.
-Just my two cents, Bob

KillerClaw321 said:
I know, however when I had issues with the device unlock app a fresh install of the latest version worked and I was able to temporarily unlock for a month.
Click to expand...
Click to collapse
My device asks for active cellular connection in order to get temporary unlock, but I can't get carrier signal since phone is locked.... are you T-Mobile customer and were you using their sim card? I am not.
Boobteg4642 said:
I went through the same ordeal. I had to actually call t-mobile and get a representative to unlock it using the phone's IMEI number so it could be used on all carriers. Call them, I'm sure they will unlock it for you. That t-mobile unlock app doesn't do anything. Also under developer options, you need to check OEM unlock before you call t-mobile.
-Just my two cents, Bob
Click to expand...
Click to collapse
Called them maybe 10 times, even used their facebook page. Every single customer representative said phone is fully paid and nothing is blocking it but they can't help me because I'm not actual / original phone owner on their database, and person I purchased this phone from has no idea what unlock is, he's impossible to deal with. Maybe you have any tips for me?
Thank you everybody for taking your time and helping us.

Just a quick update, I just flashed latest G930U firmware and after SIM card insertion, phone asks for unlock code, which of course I have no idea what it is

KillerClaw321 said:
I did it just now after a factory reset, rooted and running no BS Rom...
Click to expand...
Click to collapse
I think you and @boobteg have a paid off devices eligible for unlock. What you need to know ow is that the device unlock app doesn't work on custom roms. It requires a stock rom. There are some of us who are not eligible for unlock.

Any progress?

none so far

Same Solution
Hi! im having the same problem, i cant unlock my s7 tmobile with device unlock app, every place i try say it that the service is down. II flashed with the g930U, now the smartphone ask me for an unlock code, there is anyway to find that "unlock code" to unlock the phone in this way? Or maybe installing an non stock rom is possible to unlock the phone?
Help!! i cant use it in my actually country

morpheus1978 said:
Hi! im having the same problem, i cant unlock my s7 tmobile with device unlock app, every place i try say it that the service is down. II flashed with the g930U, now the smartphone ask me for an unlock code, there is anyway to find that "unlock code" to unlock the phone in this way? Or maybe installing an non stock rom is possible to unlock the phone?
Help!! i cant use it in my actually country
Click to expand...
Click to collapse
For now, no way to unlock..

LG G5 Software version H83020i_un

This is an unlocked T-Mobile G5, but why have a special ROM for unlocked phone? I wonder if I flash other ROMs, I could lose the unlock. Anyone have any problem rooting and install twrp?
Conclusion after a month long discussion:
G5 with H83020i_un ROM is NOT factory unlock. Upgrading or downgrading will result in SIM lock to T-Mobile, period.
Once locked, it can only be unlocked by T-Mobile customers via T-Mobile unlocked app. Some has to go thru T-Mobile customer service and request SIM unlock by adding IMEI to their database.
I bought 6 (New to New other) unlocked H830 and 2 has the hacked ROM H83020i_un and 4 were completely locked to T-Mobile. Yes, those stupid sellers on ebay just keep sending lock phones as unlocked phone! Good luck getting a unlocked one.
No, you cannot install TWRP or root this version.
I ended up returning mine.

You shouldn't lose the unlock by flashing another ROM.
A ROM isn't just about 'locked or unlocked'. The ROM is the operating system. While it will still be Android no matter what you do, different ROMs are modified differently to provide additional features, or more control over the settings or just a slightly different user interface.
This has NOTHING to do with the phone being unlocked for use on any GSM network.
For example some people want to be able to control the CPU processor speed on the phone more. Some ROM's give you that control built into the settings and use customer kernels that allow the CPU to run faster than it does running stock. Other people just like a more simple UI that you get on base Android ROM's (rather than some of the overlays LG puts on)

Skipjacks said:
You shouldn't lose the unlock by flashing another ROM.
A ROM isn't just about 'locked or unlocked'. The ROM is the operating system. While it will still be Android no matter what you do, different ROMs are modified differently to provide additional features, or more control over the settings or just a slightly different user interface.
This has NOTHING to do with the phone being unlocked for use on any GSM network.
For example some people want to be able to control the CPU processor speed on the phone more. Some ROM's give you that control built into the settings and use customer kernels that allow the CPU to run faster than it does running stock. Other people just like a more simple UI that you get on base Android ROM's (rather than some of the overlays LG puts on)
Click to expand...
Click to collapse
I can't confirm this personally, but @autoprime mentioned on IRC that everyone who tried flashing other KDZs over this specific firmware lost the SIM unlock.

BehindTheMath said:
I can't confirm this personally, but @autoprime mentioned on IRC that everyone who tried flashing other KDZs over this specific firmware lost the SIM unlock.
Click to expand...
Click to collapse
So we can't flash this device?

dkyu said:
So we can't flash this device?
Click to expand...
Click to collapse
Well, technically you can, but as of now it sounds like you'd lose the SIM unlock.

BehindTheMath said:
Well, technically you can, but as of now it sounds like you'd lose the SIM unlock.
Click to expand...
Click to collapse
I don't know when people will understand that it has nothing to do with sim unlock. I have T-Mobile unlocked sim lg g5 and flashed roms, custom and stock both several times and never had any problem with sim lock stuffs. Just install twrp, root, flash custom rom, there will never hurt anything in your phone.

dksoni411 said:
I don't know when people will understand that it has nothing to do with sim unlock. I have T-Mobile unlocked sim lg g5 and flashed roms, custom and stock both several times and never had any problem with sim lock stuffs. Just install twrp, root, flash custom rom, there will never hurt anything in your phone.
Click to expand...
Click to collapse
It seems that this is not a regular unlock. When I open the T-Mobile app, it says the phone is still locked, but it works anyway.

dksoni411 said:
I don't know when people will understand that it has nothing to do with sim unlock. I have T-Mobile unlocked sim lg g5 and flashed roms, custom and stock both several times and never had any problem with sim lock stuffs. Just install twrp, root, flash custom rom, there will never hurt anything in your phone.
Click to expand...
Click to collapse
I just tried downgrading to 20A and lost the SIM unlock.

BehindTheMath said:
I just tried downgrading to 20A and lost the SIM unlock.
Click to expand...
Click to collapse
Did you confirm that by trying the phone with a non T Mobile SIM on a different network? Or did you just let the T Mobile unlocker app tell you it's still locked?
The app isn't the most reliable thing in the world. It's known to say it's not unlocked when it is or that it can't be unlocked when it already is. Etc etc...
Unlocking it manually (through codes, ADB, root, etc....) messes with the unlocker app. But the unlock itself should still be valid.

Skipjacks said:
Did you confirm that by trying the phone with a non T Mobile SIM on a different network? Or did you just let the T Mobile unlocker app tell you it's still locked?
The app isn't the most reliable thing in the world. It's known to say it's not unlocked when it is or that it can't be unlocked when it already is. Etc etc...
Unlocking it manually (through codes, ADB, root, etc....) messes with the unlocker app. But the unlock itself should still be valid.
Click to expand...
Click to collapse
I took the active H2o (At&t MVNO) SIM from my current device and tried it in this one. I could not make phone calls or access data, both in stock 20A and Resurrection Remix.

BehindTheMath said:
I took the active H2o (At&t MVNO) SIM from my current device and tried it in this one. I could not make phone calls or access data, both in stock 20A and Resurrection Remix.
Click to expand...
Click to collapse
that's sucks.
I wonder if you can actually get an unlock code to unlock the phone now.

dkyu said:
that's sucks.
I wonder if you can actually get an unlock code to unlock the phone now.
Click to expand...
Click to collapse
If I'm not mistaken, you can't unlock this phone with an unlock code.

dksoni411 said:
I don't know when people will understand that it has nothing to do with sim unlock. I have T-Mobile unlocked sim lg g5 and flashed roms, custom and stock both several times and never had any problem with sim lock stuffs. Just install twrp, root, flash custom rom, there will never hurt anything in your phone.
Click to expand...
Click to collapse
Maybe it is something to the specific phones people are getting from the ebay seller. They are being sold as new yet are not factory sealed and missing the Tmo sim card. People are claiming Android pay doesn't work and the phone isn't rooted. A new out of the box phone shouldn't have that issue. So something isn't necessarily kosher.

Guys, I have the same version (H83020i_un) and it has April security update and T-Mobile has different version #s on their website. I have checked for update, but nothing came up. So I can't get T-Mobile updates?

The software version H83020i_un is apparently not an official ROM released by T Mobile or LG.
There is a lot of speculation on Slickdeals (a website for coupons and stuff where this eBay deal has been discussed quite a bit) that the unlock was done by flashing a modified ROM. If so that would explain why flashing a new ROM loses the unlock.
Additionally people are saying that Android Pay doesn't work on this phone with that software update, presumably because it's not official firmware. I've never used Android Pay so I have no idea if it works or not.
All in all if you have the H83020i_un software and bought the phone 'new' I think you got conned. It's not new and that seems to be unofficial software.

I spent a lot of time, with help from @autoprime, trying to figure out where the unlock is stored. I was able to dump the partitions from 20i_un using the method here. After I downgraded to 20A and flashed TWRP, I flashed back all the 20i_un partitions (besides recovery, cache, and userdata), and it still wasn't unlocked. So I'm baffled as to how the unlock works.

Skipjacks said:
The software version H83020i_un is apparently not an official ROM released by T Mobile or LG.
There is a lot of speculation on Slickdeals (a website for coupons and stuff where this eBay deal has been discussed quite a bit) that the unlock was done by flashing a modified ROM. If so that would explain why flashing a new ROM loses the unlock.
Additionally people are saying that Android Pay doesn't work on this phone with that software update, presumably because it's not official firmware. I've never used Android Pay so I have no idea if it works or not.
All in all if you have the H83020i_un software and bought the phone 'new' I think you got conned. It's not new and that seems to be unofficial software.
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I see. It will be used as a second device, so it is fine. I flashed the phone with stock T-Mobile H83020a, then got few OTA updates. Now my phone has H83020i, but T-Mobile's page(below) shows an "f" version as the latest. So is the H83020i, the latest update or not? Also would be good if anyone with real T-Mobile unit could chime in.
https://support.t-mobile.com/docs/DOC-30673

BehindTheMath said:
I spent a lot of time, with help from @autoprime, trying to figure out where the unlock is stored. I was able to dump the partitions from 20i_un using the method here. After I downgraded to 20A and flashed TWRP, I flashed back all the 20i_un partitions (besides recovery, cache, and userdata), and it still wasn't unlocked. So I'm baffled as to how the unlock works.
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Click to collapse
And there is no way to root the phone without downgrading to 20A right?

Charkatak said:
I see. It will be used as a second device, so it is fine. I flashed the phone with stock T-Mobile H83020a, then got few OTA updates. Now my phone has H83020i, but T-Mobile's page(below) shows an "f" version as the latest. So is the H83020i, the latest update or not? Also would be good if anyone with real T-Mobile unit could chime in.
https://support.t-mobile.com/docs/DOC-30673
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Click to collapse
Looks like 20i is the latest.
https://forum.xda-developers.com/tm...ock-h830-20i-rom-flashable-zips-imgs-t3609735
dkyu said:
And there is no way to root the phone without downgrading to 20A right?
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Click to collapse
Correct.

BehindTheMath said:
Looks like 20i is the latest.
https://forum.xda-developers.com/tm...ock-h830-20i-rom-flashable-zips-imgs-t3609735
Correct.
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So if 20i is the latest, then it is possible that T-Mobile's variant of the phone could have a different model # than H830...