[Q] Unlock after Firmware upgrade - Galaxy S I9000 Q&A, Help & Troubleshooting

Do I have to unlock my device everytime I upgrade firmware or change ROM? I am playing around trying to find the ROM I like most. But don't want to Root, and unlock after.

unlike the iPhones, your i9000 will remain unlocked once you've unlocked it. Firmware upgrades are for legit reasons, not just to lock your phone down again.
Rooting is affected by firmware upgrades but is easy to fix.

testulous said:
unlike the iPhones, your i9000 will remain unlocked once you've unlocked it. Firmware upgrades are for legit reasons, not just to lock your phone down again.
Rooting is affected by firmware upgrades but is easy to fix.
Click to expand...
Click to collapse
So...
If I make a nandroid of my current rom (Vodafone Spain stock Rom).. will this "save" the lock/unlock status, or is the status NOT depending on ROM?
I need to know this because of warranty .
Thaaaaaanks...

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??
Click to expand...
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!

Questions From a Would be Owner

Hello guys,
Just a few questions so I know what I am getting into
1) The phone can be rooted. However, if i want to run on a custom ROM or use mods such as the music mod, I would have to unlock the bootloader, yes?
2) Once the bootloader is unlocked, I would lose the 'Bravia Engine' feature of the phone. What else will I lose? For those who have lost it, is the trade off, of being able to run Custom ROMs and mods while losing the 'Bravia Engine' feature worth it?
3) If I have to send the phone for warranty, I could just re-lock the bootloader and send it back for warranty. Is there a chance somehow that they'll reject the phone if they detected that the phone's bootloader was tempered with?
arvin2212 said:
Hello guys,
Just a few questions so I know what I am getting into
1) The phone can be rooted. However, if i want to run on a custom ROM or use mods such as the music mod, I would have to unlock the bootloader, yes?
Click to expand...
Click to collapse
no
arvin2212 said:
Hello guys,
Just a few questions so I know what I am getting into
2) Once the bootloader is unlocked, I would lose the 'Bravia Engine' feature of the phone. What else will I lose? For those who have lost it, is the trade off, of being able to run Custom ROMs and mods while losing the 'Bravia Engine' feature worth it?
Click to expand...
Click to collapse
No clue since mine isn't/can't be unlocked. The only reason for me to unlock the BL (Even though it can't be done) would be, to flash a custom kernel, beside that I don't see any other reasons why I should unlock it.
arvin2212 said:
Hello guys,
Just a few questions so I know what I am getting into
3) If I have to send the phone for warranty, I could just re-lock the bootloader and send it back for warranty. Is there a chance somehow that they'll reject the phone if they detected that the phone's bootloader was tempered with?
Click to expand...
Click to collapse
Once it's unlocked there is no way back.
So if you want to root your phone, use custom roms (without custom kernels) you don't need to unlock the bootloader.
Dsteppa said:
no
No clue since mine isn't/can't be unlocked. The only reason for me to unlock the BL (Even though it can't be done) would be, to flash a custom kernel, beside that I don't see any other reasons why I should unlock it.
Once it's unlocked there is no way back.
So if you want to root your phone, use custom roms (without custom kernels) you don't need to unlock the bootloader.
Click to expand...
Click to collapse
Thank you very much for the reply.
I assumed as such from reading some posts initially, but then I went to the ROM section (If i am not mistaken) and there is a post on how to unlock the bootloader and then there is the Why section where it says that you could then use custom ROMs and mods which then confused me.
If i can use custom roms and mods without unlocking the bootloader, then I'll definitely be getting this phone.
I'll take advantage of this thread to ask one simple question: once we rooted the XZ and flash the Mods we find useful, we no longer get updates from the official Sony firmware in the future, right?
labroste said:
I'll take advantage of this thread to ask one simple question: once we rooted the XZ and flash the Mods we find useful, we no longer get updates from the official Sony firmware in the future, right?
Click to expand...
Click to collapse
First backup your firmware with http://forum.xda-developers.com/showthread.php?t=2188129
You can go back at any time to your original firmware and you can have the updates via pcc or sus.
Sent from my C6602 using xda premium

What is de-branding (UK)

Hi,
I have noticed after reading a few threads that a lot of people in the UK are mentioning that they are going to de-brand their N4. How & why is this done? Does deleting all of the applications that came on the phone also accomplish this?
Also, will it make the phone any snappier after doing this and does this count as 'rooting'? Apologies for all the 'silly' questions, but I am fairly new to this.
Thanks,
Sam
I think was they are referring to is to root the device and this would allow you to put a stock firmware on and or remove the preinstalled software that can't be removed without rooting first.
sampglov said:
Hi,
I have noticed after reading a few threads that a lot of people in the UK are mentioning that they are going to de-brand their N4. How & why is this done? Does deleting all of the applications that came on the phone also accomplish this?
Also, will it make the phone any snappier after doing this and does this count as 'rooting'? Apologies for all the 'silly' questions, but I am fairly new to this.
Thanks,
Sam
Click to expand...
Click to collapse
You debrand a phone by unlocking it first (o2 sent me unlock code just an hour ago) , then flash stock firmware over the carrier firmware, then perform a factory reset, your phone will be debranded as if you purchased a sim free version, no carrier crap.
You do not need to root to debrand
martytarty said:
You debrand a phone by unlocking it first (o2 sent me unlock code just an hour ago) , then flash stock firmware over the carrier firmware, then perform a factory reset, your phone will be debranded as if you purchased a sim free version, no carrier crap.
You do not need to root to debrand
Click to expand...
Click to collapse
Is the un-lock needed tho?, can't you just flash the current BTU if you dont need to unlock? Thanks.
I think you could do that yeah, don't think it would cause any issues with your phone functioning, only thing it would mean is your phone isn't completely de-branded as it would still contain your carriers sales code (I could be wrong here) just my take on it from what I've researched in the past

International or T-Mobile ROM on unrooted stock unlocked ATT phone?

Hi. I am new on this forum and don't know much about rooting and the requirements of such high complex stuff. But I have an ATT unlocked phone which I use on t mobile. It's lacks WiFi calling, whxih I want, and the signal is probably 1 bar lower than it should. Not to mention I can't update my software since ATT servers for the update won't communicate with my phone since I'm no longer and ATT customer and they are generally very slow with their updates
Anyway is it possible to put a international ROM, say the new marshmallow ROM, or even a T-Mobile ROM on my phone? How would one do that? I am aware of odin as I use it to update my software from time to time. Do I just get the international or T-Mobile ROM and flash it?
Thanks.
No way , at&t have a locked bootloader, ):
international..any day..dont even think abt it
Been trying to do this forever. Still no luck.
Anyway to unlock the bootloader? Would my best bet to sell the phone and just get the unlocked one?
AT&T no way , yes get the 925f

Found Marshmallow odin file!!!

For anyone who might have bricked their device or just want to flash marshmallow on their s6 I have found the odin flashable file to do so. (Warning, make sure your bootloader is unlocked if you are upgrading or downgrading) I did a lot of research until I found this because I bricked my phone. Enjoy. http://www.theandroidsoul.com/download-galaxy-s6-stock-firmware/
chris62594 said:
For anyone who might have bricked their device or just want to flash marshmallow on their s6 I have found the odin flashable file to do so. (Warning, make sure your bootloader is unlocked if you are upgrading or downgrading) I did a lot of research until I found this because I bricked my phone. Enjoy. http://www.theandroidsoul.com/download-galaxy-s6-stock-firmware/
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Click to collapse
What process did you use to unlock your bootloader? I am under the impression no one has been able to do so on g920a.
dandrumheller said:
What process did you use to unlock your bootloader? I am under the impression no one has been able to do so on g920a.
Click to expand...
Click to collapse
I was not able to unlock my bootloader. But I do know other people who can unlock bootloaders from other cell phone companies who want to switch to att firmeware so I included that phrase. I bricked my phone trying to downgrade when the bootloader was locked and had to find the original marshmallow firmware so I could fix my phone. I do believe though that once you own your phone you should be able to take a phone to att and have them unlock the bootloader from my understanding. That is what you have to do anyways if you want to change service to straight talk or other carriers.
chris62594 said:
I was not able to unlock my bootloader. But I do know other people who can unlock bootloaders from other cell phone companies who want to switch to att firmeware so I included that phrase. I bricked my phone trying to downgrade when the bootloader was locked and had to find the original marshmallow firmware so I could fix my phone. I do believe though that once you own your phone you should be able to take a phone to att and have them unlock the bootloader from my understanding. That is what you have to do anyways if you want to change service to straight talk or other carriers.
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Click to collapse
AFAIK they will NETWORK unlock, which is what you're referring to, not bootloader unlock.

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