Will unlocking SGS allow me Gingerbread - Galaxy S I9000 Q&A, Help & Troubleshooting

Hello everyone
Ive just bought a pre-owned SGS with 2.2 froyo, however its locked to the T-Mobile UK network. I am on Virgin UK, I entered my APN manually and my SIM Card works fine in it, but I cant find a "software Update" in Settings on Phone.
I bought it for Gingerbread, so I downloaded Kies but it says Its the latest Firmware and I only have 48 hrs to change my mind and return it and Unlocking it would invalidate the warranty.
So will unlocking it, get me 2.3 or should i return it.
This T Mobile Boxed version cost me £220 (unwanted contract upgrade, so its BNIB, for the sim free its £275.. quite a difference. Im not very good at modding either.
Any Advice
Thanks
Night

If you don't want to flash manually with Odin you should return the locked Galaxy and look for an unlocked one or even for a Galaxy S2...
If you flash with Odin you can have Gingerbread (Android 2.3.3 or 2.3.4).

NightOrchid said:
Hello everyone
Ive just bought a pre-owned SGS with 2.2 froyo, however its locked to the T-Mobile UK network. I am on Virgin UK, I entered my APN manually and my SIM Card works fine in it, but I cant find a "software Update" in Settings on Phone.
I bought it for Gingerbread, so I downloaded Kies but it says Its the latest Firmware and I only have 48 hrs to change my mind and return it and Unlocking it would invalidate the warranty.
So will unlocking it, get me 2.3 or should i return it.
This T Mobile Boxed version cost me £220 (unwanted contract upgrade, so its BNIB, for the sim free its £275.. quite a difference. Im not very good at modding either.
Any Advice
Thanks
Night
Click to expand...
Click to collapse
Check out market for free unlocking Apps. I have seen them and looks as though the unlock codes are stored in some system file that the app apparently reads. I cannot vouch that they work as my sgs was supplied from vodafone unlocked. But worth a try as they are free. What's the worse that could happen?
Sent from my GT-I9000 using XDA Premium App

Will unlocking SGS allow me Gingerbread
Yes defo, thats what I had to do.

Related

[Q] Help with canada virgin sgs

Got two virgin sgs with froyo 2.2, i9000UGJL2.
what are the steps to unlock,root,install CWM and update to latest or apply doc roms.
i read everywhere but i kept on getting errors.
it's the same as the Bell phone
by the way Virgin is Bell owned
the unlocking apps dont work and i cant find cwm for 2.2 but only for the 2.1.
I downloaded Galaxy S unlock from the market and unlocked my sim. The app allows you to rewind just in case you need to rewind for any reasons i.e. warranty etc. My phone's sim was locked on to Vodafone UK but now it accepts any sim card
When i try rooting, it says verification error.
use the superoneclick rooting app on the DEV section of the forum
okay.worked on 6th attempt.mod can delete this thread.thanks.

[Q] how to unlock samsung galaxy s

Hi guys,
I am from Australia. About couple of months ago I upgraded my SGS from stock froyo (network provided) to 2.3.4 JVR gingerbread via samfirmware but I did not unlock my phone prior to doing that as I was told it doesn't matter. Now when I am trying to unlock it, it doesn't work. It says network unlock unsuccessful. I am leaving for overseas in a week and if my phone doesn't unlock then I can't use it. I am kinda freaking out. My phone is not rooted.
Pls help!!!
Dont use the app only the.pro.app unlocks your phone try to hex edit nv_data.bin there is a great.guide.how to do that in the development forums
ps: you have to be rooted to.do.it but.if you reinstall to stock the unlock remains.if you dont touch.efs folder
If im wrong sorry i.did it this.way.and.my.phone is still unlocked

How to update to 2.3.x in a branded network locked phone

I always used Android "Google phones", so I'm not very used to the situation I am about to ask.
A friend of mine has asked me to update his branded locked Vodafone Galaxy S to 2.3.6 (for some reason Kies is not updating, maybe the carrier didn't released the update?
So, when I googled about it, in order to use Odin for a "manual" update, ok, I found a lot of tutorials, but they always refer that is required a network unlocked phone.
Anyway, is there a way to update it in this locked phone?
There are some unlocking tools in the development section, or even on the Market (Galaxy S Unlock).
Maxxd01 said:
I always used Android "Google phones", so I'm not very used to the situation I am about to ask.
A friend of mine has asked me to update his branded locked Vodafone Galaxy S to 2.3.6 (for some reason Kies is not updating, maybe the carrier didn't released the update?
So, when I googled about it, in order to use Odin for a "manual" update, ok, I found a lot of tutorials, but they always refer that is required a network unlocked phone.
Anyway, is there a way to update it in this locked phone?
Click to expand...
Click to collapse
I've used Galaxy_S Unlock app, available in the play store!
It worked for the vodafone branded Galaxy S international! (i9000)

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
Click to expand...
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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