Installing official firmwares after root. - ONE Q&A, Help & Troubleshooting

I just got my one plus one yesterday. And I am wanting to just root the phone. But I know i will need a custom recovery and to unlock the bootloader. But i don't want to install any roms. So if I update this phone when a custom recovery is installed will it brick the phone?
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No it wont brick the phone, provided you follow the rooting and unlocking procedure correctly.
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You can root without installing a custom recovery. Keep reading.
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How do i oem unlock?

Qnot sure if i am in the right thread, but ive never done an unlock to an unencrypted bootloader. How do i unlock the bootloader and root ? GT-N8013
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You don't unlock the bootloader on Samsung devices.
You flash a custom recovery via Odin and then use the recovery to flash the root package.
There are already plenty of guides around if you take a look.
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dr.m0x said:
You don't unlock the bootloader on Samsung devices.
You flash a custom recovery via Odin and then use the recovery to flash the root package.
There are already plenty of guides around if you take a look.
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Thanks. Ill look. I dont need to worry about a bootloader when flashing tho?
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[Q] rooting help [NS4G]

I used 3 different rooting programs and it never rooted I just ended up unlocking the bootloader. Can anyone share any insight?
Plus on my computer I can't install any programs so is there any apps on the phone I can use to root it like gingerbreak?
I'm on 4.1.1
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How do you unlock bootloader? If you do this via fastboot then it is also possible to flash a custom recovery. This is what you need to do in order to flash superuser.
If you don't have fastboot drivers working, I guess you should wait for someone that knows a way around it or visit a friend that can install programs.
Sent from my Nexus S
...search "one click root nexus s jb 4.1.2"....worked just fine for me!! Root and stock!
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Bootloader, how to tell if it's locked on nonrooted device

Hey guys, just recently had to unroot the S3 due to some minor hardware issues. I flashed the stock Rom and all with mobile Odin and was even able to update with the ota.
Is there a way to check to make sure the bootloader is locked without having to unroot again? Have a feeling I missed a step but just want to be sure.
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Of the Samsung screen flashes by very quickly at boot then it means you are unlocked.
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If you did a ota then your bootloader is locked iirc. Which version did you flash with odin? I think the F2 is the only version that doesnt relock but i could be wrong. But as suggested if the samsung logo goes away real quick at boot you are unlocked.
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I flashed the rom they had from stockrooms.net, so I'm guessing it was one of the first roms the S3 had. It seems like I'm locked since it did an OTA twice (one I manually allowed then another one automatically) and the Samsung logo doesn't just flash by.
As x714x posted, if you accepted an OTA then your bootloader is locked.
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The HD stock build is the only one that wipes everything.
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Just unlock again using EZ Unlock 1.2 to be safe. It will not hurt anything to unlock it if it is already unlocked.
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[Q] Root Flash then Revert Without a PC?

Just wanted to know if its possible to root (towel root) flash custom recovery and custom roms and then if I decide to later revert totally back to stock unrooted nexus without a PC. Ive attempted to read up on this but I'm a little confused that ill need to use SDK and ADB which i can't have access to at the moment or have the skills to use.
I've seen apps on google play to unlock boot loader once towel rooted but I'm just unsure if i can revert totally back to an unrooted nexus 5 with original recovery, without a pc as I'm using an iMac and having really unreliability with it :/
Id greatly appreciate any help :good:
cameracartwright said:
Just wanted to know if its possible to root (towel root) flash custom recovery and custom roms and then if I decide to later revert totally back to stock unrooted nexus without a PC. Ive attempted to read up on this but I'm a little confused that ill need to use SDK and ADB which i can't have access to at the moment or have the skills to use.
I've seen apps on google play to unlock boot loader once towel rooted but I'm just unsure if i can revert totally back to an unrooted nexus 5 with original recovery, without a pc as I'm using an iMac and having really unreliability with it :/
Id greatly appreciate any help :good:
Click to expand...
Click to collapse
You may need a computer to return to stock but otherwise you shouldn't need a pc
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Could I not back up the stock ROM using twrp and then after using custom ROMs flash it back (stock) and flash stock recovery and in root and relock boot loader using super su and boot loader apk?
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cameracartwright said:
Could I not back up the stock ROM using twrp and then after using custom ROMs flash it back (stock) and flash stock recovery and in root and relock boot loader using super su and boot loader apk?
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Yes. If u can find all the right files to do that
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NBreunig3 said:
Yes. If u can find all the right files to do that
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think there on xda somewhere?
cameracartwright said:
think there on xda somewhere?
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Yes. What phone and carrier are you using?
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Nexus 5 on EE
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cameracartwright said:
Nexus 5 on EE
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EE?
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---------- Post added at 05:47 PM ---------- Previous post was at 05:46 PM ----------
cameracartwright said:
Nexus 5 on EE
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Click to expand...
Click to collapse
The nexus devices are the easiest devices to get back to stock because Google supplies the stock images
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Yes EE it was the first 4g carrier in UK used to be T-Mobile and orange
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But I can only flash the images from Google using adb right?
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cameracartwright said:
But I can only flash the images from Google using adb right?
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Click to collapse
Not sure. I am not familiar with nexus devices
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This is a nexus thread?
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There are a couple different options.
I'm not sure if flashify requires a unlocked bootloader. Root, flash custom recovery with flashify, make a backup. When you are done either restore backup or if stock already use flashify to flash stock recovery, delete root apps, unroot via supersu.
Boot unlocker I have heard will work to lock and unlock boot loader but I'm not sure about resetting the tamper flag.
Using fastboot and adb is always going to be the surest and safest way to root etc. Unless you are going to be submitting your phone for RMA there should be no reason to unroot. You can always flash a stock rooted ROM and just leave it.
http://forum.xda-developers.com/showthread.php?p=47025283
http://forum.xda-developers.com/showthread.php?p=47156064
Sent from my Nexus 5 using Tapatalk
Steps are;
-Download boot unlocker fr on play
-Download flashify from play (just in case)
-Download vomers stock ROM (number 6 in resources section in the link in my signature)
-Download stock recovery (number 7 in resources section in the link in my signature)
Firstly, flash the recovery zip via your current recovery and reboot
Then, reset The tamper flag and lock the boot loader
Finally, open SuperSU and use the full indoor option to remove Root
Good as new.
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[Q] Bootloader Question

Hello, im new in G pro 2, and have been read on XDA for week ago, i have open many thread and read it about installation procedure of some rom, but i dont find it that if the flashing required unlock bootloader first or just need to root the phone, so i decided to ask some question
1.) Do i need unlock bootloader to flash some rom? Like 5.0.x rom?
2.) Is root too have unlock my bootloader first?
Thank you so much for the answer
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vy69gazerock said:
Hello, im new in G pro 2, and have been read on XDA for week ago, i have open many thread and read it about installation procedure of some rom, but i dont find it that if the flashing required unlock bootloader first or just need to root the phone, so i decided to ask some question
1.) Do i need unlock bootloader to flash some rom? Like 5.0.x rom?
2.) Is root too have unlock my bootloader first?
Thank you so much for the answer
Sent from my LG-D838 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You can not unlock the bootloader,but you can root with towelroot or Stumproot.
You can Flash this Recovery
This Recovery works,but you can not save a Backup to External SD,only Internal Memory and Restore not working for me.
To flash a custom rom just need to root?
Thank you so much for the answer
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vy69gazerock said:
To flash a custom rom just need to root?
Thank you so much for the answer
Sent from my LG-D838 using XDA Premium 4 mobile app
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Click to collapse
Almost there, Yes that is correct and after rooting your device install the recovery linked By letschky above so you can flash the rom
bjscott55 said:
Almost there, Yes that is correct and after rooting your device install the recovery linked By letschky above so you can flash the rom
Click to expand...
Click to collapse
Thank you so much for the answer
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