Database Develop

Stock Unlocked Nexus One + root = voided warranty?

Hey Guys
I have bought myself a stock unlocked AT&T version of the Nexus one
It has never been rooted and I am on FRF85 at the moment (that was upgraded from EPE54b to FRF85 using the manual update method
Questions:
1. Does unlocking the bootloader mean you basically sim-unlock your phone?
2. If I have a stock unlocked phone, do I need to unlock the bootloader to root?
3. If I dont need to unlock the bootloader, when/if I decide to root my N1, will I lose warranty?
I guess question 3 is dependent on 2 above
Thanks

Unlocking the bootloader has nothing to do with sim unlocking your phone, these are two complete separate things
1 no. but I think there is no locked n1 available, so it is unlocked quite sure
2 maybe, depends on your build number. I think you have to unlock your bootloader with the att version
3 no

watercool said:
Unlocking the bootloader has nothing to do with sim unlocking your phone, these are two complete separate things
1 no. but I think there is no locked n1 available, so it is unlocked quite sure
2 maybe, depends on your build number. I think you have to unlock your bootloader with the att version
3 no
Click to expand...
Click to collapse
regarding rooting without unlocking bootloader, see the sticky in the nexus android development section

@flybyme - thanks for your reply - i had a look at the sticky thread you were talking about rooting without unlocking the bootloader.
1. what's easier? Rooting with unlocking the bootloader or without the bootloader?
2. What's more fool-proof so-to-speak?
3. What would you recommend?
Sorry for so many questions but thanks for reading

1. With unlocking the bootloader is alot simplet BUT you will loose your waranty.
2. Once either process is complete there's no real difference since you can use the custom recovery in exactly the same way to flash any further roms.
3. I would suggest _without_ unlocking the bootloader. At least give it a try, the worst that can happen is it doesnt work.

[Q]difference root with unlocked/locked bootloader

Hey guys/gals
i have a quick question.
what exactly is the difference (featurewise) when it comes to rooting with an unlocked bootloader and rooting with a locked one?
i'm pretty new to android (iOS user until last saturday), did some research today, but didn't really find much usefull information.
main reason i want to root (at least for now. i'm sure i would find more after spending more time with my xperia), is because i want to format my 64gb SD to exfat and move apps over to it.
thanks guys
edit: and no, i'm currently not thinking about getting a different theme/loader on it (this is one of the things you can only do with an unlocked one, right?)
edit2: and yes, my bootloader can be unlocked

dottore. said:
Hey guys/gals
i have a quick question.
what exactly is the difference (featurewise) when it comes to rooting with an unlocked bootloader and rooting with a locked one?
i'm pretty new to android (iOS user until last saturday), did some research today, but didn't really find much usefull information.
main reason i want to root (at least for now. i'm sure i would find more after spending more time with my xperia), is because i want to format my 64gb SD to exfat and move apps over to it.
thanks guys
Click to expand...
Click to collapse
Ok unlocked bootloaders = you lose DRM keys forever and Bravia Engine doesn't work. Relocking won't get them back. You can also overclock/underclock CPU with unlocked bootloader. You can also flash custom ROMs/kernels with unlocked bootloader.
Now with locked bootloader you can still have root but you don't lose your DRM keys. You can't flash custom ROMs/kernels or do any overclocking/underclocking.
That's all I can think of.

yeah, i read about that whole DRM thing. i don't care so much about the Bravia Engine and DRM, but i wouldn't mind it staying (first time i said that about DRM), so thats one of the main reason i didn't just went on with unlocking.
is flashing a custom kernel something more or less common when using a rooted android? could i get the things mentioned done without doing it? (i think i read moving apps only needs root, but then again: the xperia z seems to be a bit special when it comes to extSD)
thanks for the fast reply
shadowboy23 said:
Ok unlocked bootloaders = you lose DRM keys forever and Bravia Engine doesn't work. Relocking won't get them back. You can also overclock/underclock CPU with unlocked bootloader. You can also flash custom ROMs/kernels with unlocked bootloader.
Now with locked bootloader you can still have root but you don't lose your DRM keys. You can't flash custom ROMs/kernels or do any overclocking/underclocking.
That's all I can think of.
Click to expand...
Click to collapse

is flashing a custom kernel something more or less common when using a rooted android? could i get the things mentioned done without doing it?
Click to expand...
Click to collapse
Well it's up to you. You can either flash custom ROMs/kernels if you want but you will need to unlock the bootloader to do that. Locked bootloader you can only have root and that's it sad to say. But you don't have to flash a custom ROM or kernel if you have root. because you can't anyway with a locked bootloader. Having root just means you can use apps that need root access.

shadowboy23 said:
Well it's up to you. You can either flash custom ROMs/kernels if you want but you will need to unlock the bootloader to do that. Locked bootloader you can only have root and that's it sad to say.
Click to expand...
Click to collapse
ok, thanks. i think i'll stay with the locked one for now...let's see for how long

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

[Q]s-off vs unlocked bootloader

What are the benefits of s-off over just unlocked boot loader

by unlocking bootloader u can root ur device, can flash custom recovery & custom roms on ur android device....

shad0wboss said:
What are the benefits of s-off over just unlocked boot loader
Click to expand...
Click to collapse
I don't have this particular device but I will tell you the general information and you can work with that.
About Bootloader(Unlocked Bootloader):
The bootloader is like a BIOS of your PC. It is the thing that is powered on and verifies all hardware and is responsible for making connection with the hardware. This can either be unlocked or locked. When you have a locked bootloader you can still root (if an exploit is available). You can even install a recovery or custom rom if an exploit is available (like BUMP was). What was it doing? Signing the images for your so the locked bootloader will think it is the OEM image. In most of the cases this is not so happy. Usually you can't flash a recovery or a custom rom or stuff like that with a locked bootloader. Some OEM's provide websites to unlock the bootloader (with the cost of losing warranty; well not really). This is the case of Sony, HTC. Some Oem's don't provide this.
About S-off:
What does S-off mean? Security off. Your device will come with S-ON always unless it's a Dev edition (correct me if I am wrong). What this does is it doesn't leave you to do very advanced operations related to the EMMC (the Nand chip). You can't flash a bootloader you wish or stuff like that. Update radio partition. In some cases system partition is also secured so you can't flash a custom ROM. By S-off you get full control of your device but if a mistakes occurs you will end up with a hard-bricked device.
Peace. Hope you understood.

neutrondev said:
I don't have this particular device but I will tell you the general information and you can work with that.
About Bootloader(Unlocked Bootloader):
The bootloader is like a BIOS of your PC. It is the thing that is powered on and verifies all hardware and is responsible for making connection with the hardware. This can either be unlocked or locked. When you have a locked bootloader you can still root (if an exploit is available). You can even install a recovery or custom rom if an exploit is available (like BUMP was). What was it doing? Signing the images for your so the locked bootloader will think it is the OEM image. In most of the cases this is not so happy. Usually you can't flash a recovery or a custom rom or stuff like that with a locked bootloader. Some OEM's provide websites to unlock the bootloader (with the cost of losing warranty; well not really). This is the case of Sony, HTC. Some Oem's don't provide this.
About S-off:
What does S-off mean? Security off. Your device will come with S-ON always unless it's a Dev edition (correct me if I am wrong). What this does is it doesn't leave you to do very advanced operations related to the EMMC (the Nand chip). You can't flash a bootloader you wish or stuff like that. Update radio partition. In some cases system partition is also secured so you can't flash a custom ROM. By S-off you get full control of your device but if a mistakes occurs you will end up with a hard-bricked device.
Peace. Hope you understood.
Click to expand...
Click to collapse
Thanks!
Things is, i was more concerned about the practical info about this device specifically because I have read that with just bootloader unlocked, the roms that i'll be able to flash will only change the visual and not so much with the kernel etc. I don't understand why people would choose to S-OFF for this device for other than just relocking the bootloader.

shad0wboss said:
Thanks!
Things is, i was more concerned about the practical info about this device specifically because I have read that with just bootloader unlocked, the roms that i'll be able to flash will only change the visual and not so much with the kernel etc. I don't understand why people would choose to S-OFF for this device for other than just relocking the bootloader.
Click to expand...
Click to collapse
Sorry I can't really help you with that information I don't know if you can flash a Custom kernel with S-on. Never had a sony. Someone will help you out soon.I hope.

i'l bump this question up then :/

I think S-off is a term unique to HTC devices. Its the equivalent of an unlocked bootloader

tonysunshine said:
I think S-off is a term unique to HTC devices. Its the equivalent of an unlocked bootloader
Click to expand...
Click to collapse
yes but nth to lose on HTC except warranty (still subject to which svc ctr tho) while on Sony, losing DRM keys (w/o backup) are like downgrading ur phone full capabilities.

monx® said:
yes but nth to lose on HTC except warranty (still subject to which svc ctr tho) while on Sony, losing DRM keys (w/o backup) are like downgrading ur phone full capabilities.
Click to expand...
Click to collapse
Is there a way to root without losing keys? I have Z3 LTE D6603 atm.
Sorry if it's a dumb question, I'm new here. And also new to sony rooting, which seems much more complex than my old Nexus 5 lol

tonysunshine said:
I think S-off is a term unique to HTC devices. Its the equivalent of an unlocked bootloader
Click to expand...
Click to collapse
Not really, you can flash kernels, roms ( aosp roms etc ) with unlocked bootloader, S-off gives you other stuff like changing mid, cid, sim unlock, downgrading/upgrading bootloader, converting to full GPE or dev edition, unlocking bootloader without need of HTC, flashing splash image, custom bootloaders, even converting to Windows ( if available of course ) locking it instead of re-locking it, restoring it to full stock state ( which is not possible without S-off ), simply put your device has no limits with S-off on HTC.
Anyway S-off isn't really needed unless you care for the things above ( if Sony even has S-off ), Sony has poor development so S-off isn't even needed or unlocking bootloader since basically all you get is aosp roms, stock alike roms are flashable with locked bootloader as far as I remember.
Sent from my HTC One M8 using Tapatalk

Is buying a Bootloader unlocked device safe

I happened to see a mate 40 pro device which is a global version but had its bootloader unlocked. Will it remain secure and operate as mentioned by the company or does it have any negatives.

Anything with an unlocked bootloader has less security compared to a device with a locked bootloader. If you plan to do confidential things with your device with an unlocked bootloader, some services will not let you use them due to an unauthorized modification of the device. An example would be applications that rely on safetynet or have services that detect an unlocked bootloader, root, and/or custom recovery. Other than that, the device should work and operate normally under any other circumstance. If you wish to get an pre-unlocked bootloader device, i recommend you to flash magisk, as that will hide root, and the unlocked bootloader status on the device so you can still do your every day things without booting you out due to an unlocked bootloader.

Thanks for your suggestions High on Linux, would help find instructions on how to flash the Magisk on Mate40 pro

Barross said:
Thanks for your suggestions High on Linux, would help find instructions on how to flash the Magisk on Mate40 pro
Click to expand...
Click to collapse
From what i have seen, there isn't an official method to flash a custom recovery or magisk yet on this device in particular. I personally don't own any huawei devices either but since this device is fairly new, you could start seeing some progress being done within the next two to three months depending if numerous developers own this phone or not.

Thank again

Barross said:
I happened to see a mate 40 pro device which is a global version but had its bootloader unlocked. Will it remain secure and operate as mentioned by the company or does it have any negatives.
Click to expand...
Click to collapse
Today rooting and android device doesn't bring any benefits.. it was used for old gen smartphones where ppl used to miss features but now you can have it without some root.. + if you have root many apps will detect it and you will encounter many many problems espec. with payment apps or bank apps etc.. making even more trouble ..