[Q] Can I root without unlock the bootloader or to locked it again? - G4 Q&A, Help & Troubleshooting

Hello guys, sorry because may be this is the 50th time someone ask this question but the situation change every day. Yesterday I won from lottery and decide to go from G3 to G4. My model is European H815, I want to ask you can I root G4, change the recovery and e.t.c. without unlocking the bootloader? And also if I unlocked it is their any way to locked it again or to use my warranty? Thank you!!

well you can only root using low effort root(google it or find it here ) But to change recovery you have to unlock bootloader
No there is no way confirmed to relock your bootloader
GOOD LUCK

Thank you! If I root by this way and download Flashify and try to change recover what will happen ? Thank you!

without bootloader unlocked nothing will chnage ( recovery wont be installed ) and when you reboot your phone it will get u error (authentication error #9) as i remember and you will have to flash new firmware using lg flash tool 2014 so i dont recommend you do so
if u wanna change recovery unlock ur bootloader
you are welcome anytime

I did not get it, I hope you can light me up:
1. Doing root using low effort root means rooting without unlocking bootloader? (because I flew over the thread and did not read anything about it)
2. If I do unlock Marshmallow's bootloader, what happens when I downgrade to Lollipop via flashing proper KDZ? (I would guess that the unlocked bootlader will be overwritten!? So flashing Marshmallow again would end up in a locked bootloader, doesn't it?)
thanks

You can root lollipop without unlocking bootloader but with marshmalow you can't, you have to unlock the bootloader.
You need an unlocked bootloader for custom recovery.
Bootloader unlocking is a one way operation , you can't go back.

Related

[Q] Rooting and carrier warranty

I need your help guys,
just got my Xperia ARC and i wanted to root it by this guide and i have a few questions:
i bought the phone from an Israeli carrier (pelephone if its matter) so in the guide i need to change the carrier firmware to the original firmware and i wander if it will void the warranty. also is there any way to change back the firmware after the change, if so then how? i searched and i couldn't find anything...
thanks ahead
The thing with Rooting a phone, is that you can root your phone and still the ¨stock¨ Arc is untouched after you have unrooted.
The flashing and rooting dont break the warranty by it self.
If you change from locked bootloader to unlocked.. The warranty is removed.
Easiest way to root is:
*Download*
3.0.A.2.181 Generic World: http://www.mediafire.com/?​y9s73andrl4bllc
*Use Flashtool to Flash .181*
Flashtool: http://www.multiupload.com​/7H4JT35B6G
*Use Gingerbreak after you flashed back*
http://forum.xda-developers.com/show....php?t=1044765
*After it have rebooted and active, go to settings and do a OTA over wireless.
This way you keep your Arc locked, nothing good comes from unlocking the bootloader yet.
Nepturion said:
nothing good comes from unlocking the bootloader yet.
Click to expand...
Click to collapse
That's not entirely true. You've got custom ROMs being developed; over-clock kernel just released, Recovery and what not.
Unlocking the bootloader is personal choice. I may not unlock my bootloader just yet but I can't deny that with improvements being shown, it's an increasingly tempting option. LOL!

NRT says bootloader is not unlocked but it is...

So I'm on stock MRA58U right now and i'm trying to root with wugfresh nexus root toolkit.
When i go to start the root process with the tool it will end up telling me that the bootloader is locked and i need to unlock it, but i previously have unlocked the bootloader because I had root back on lollipop etc.
So i go through the prompts to unlock the bootloader and it does its thing and reboots etc. When i try to use the root option it will do the same and still tell me that the bootloader is locked...
and yes, i can confirm that in the bootloader it says unlocked. Any suggestions on what to do?
jasonftfw said:
So I'm on stock MRA58U right now and i'm trying to root with wugfresh nexus root toolkit.
When i go to start the root process with the tool it will end up telling me that the bootloader is locked and i need to unlock it, but i previously have unlocked the bootloader because I had root back on lollipop etc.
So i go through the prompts to unlock the bootloader and it does its thing and reboots etc. When i try to use the root option it will do the same and still tell me that the bootloader is locked...
and yes, i can confirm that in the bootloader it says unlocked. Any suggestions on what to do?
Click to expand...
Click to collapse
Having the same problem, had to down grade the rooting tool to v.2.0.5 for it to see the 7 as unlocked. You can get the older version here:
https://androidfilehost.com/?fid=95916177934547093
To make sure the 7 does the updates, I reflashed to stock unrooted MRA58K and let it do the 2 OTA update. Still trying to find the best way to root the MRA58V

H815 Bootloader unlock Problem

Hey guys,
I want to open my bootloader.
i want to use this tutorial to unlock my BL
Official Bootload unlock from LG
Because i didn't know if i need to use or if it's okay to just flash
http://forum.xda-developers.com/g4/...p://www0.xup.in/tn/2016_02/13933741.png[/img]
And on my phone are absoulutly no infos.
"Welcome to fastboot mode for bootloader unlock:
1) Read Device ID ...
2) Write unlock Key
3) Chack Bootloader is unlocked
....
but not more and no dropdown possibility.
If there would a stock or so one with
root and mm and unlocked bootloader, that woukd be reakky nice.
if not, than i need help please.
2nd try is a littlebit horrorble
i used 3 different adb.exe
At first i wanted t o start bootloader with the second picture. that didn't work. With the left it was poassible ind in the last ist don't know
Device Search: (nothing found)
can #closed.
fix. reinstalled some drivers with newer ones

Questions about carrier unlock and re-lock the bootloader

Deear All,
I just bought my z2 force (t-mobile) from internet. It is an unlocked version and i can use it with my own sim card. However, i found that it cannot update via OTA as the bootloader is unlocked. I have heard that after i re-flash the firmware, the bootloader will be relocked. I am wondering, will the flashing re-activate the carrier lock?
Also, is it correct that after I flash via Lenovo Moto Smart Assistant. the bootloader will be locked again?
Is there other method to allow the phone to get OTA again?
Thanks a lot for your help.
hkguy80 said:
Deear All,
I just bought my z2 force (t-mobile) from internet. It is an unlocked version and i can use it with my own sim card. However, i found that it cannot update via OTA as the bootloader is unlocked. I have heard that after i re-flash the firmware, the bootloader will be relocked. I am wondering, will the flashing re-activate the carrier lock?
Also, is it correct that after I flash via Lenovo Moto Smart Assistant. the bootloader will be locked again?
Is there other method to allow the phone to get OTA again?
Thanks a lot for your help.
Click to expand...
Click to collapse
Unlocked bootloder won't stop an ota, but a custom logo.bin will. Chances are that the seller has also flashed a logo. When you boot you should see a warning about your bootloader being unlocked, if you don't and you just see a moto logo (or any stationary image really) then you have a custom logo which will fail otas. The easiest way to remedy this is to follow Uzephi's "How to Return to Stock' thread. Then you should get otas again. It is advised never to relock your bootloader. A good example of why would be that you have a custom logo, you relock, your phone fails to boot and you can't flash anything because you locked it. There is no real valid reason to relock your phone. As for losing carrier unlock, you shouldn't, those are usually permanent. Unless it was some hack which I doubt since I believe that is only for Spring variants. Just follow Uzephi's guide and you should be back to good.
41rw4lk said:
Unlocked bootloder won't stop an ota, but a custom logo.bin will. Chances are that the seller has also flashed a logo. When you boot you should see a warning about your bootloader being unlocked, if you don't and you just see a moto logo (or any stationary image really) then you have a custom logo which will fail otas. The easiest way to remedy this is to follow Uzephi's "How to Return to Stock' thread. Then you should get otas again. It is advised never to relock your bootloader. A good example of why would be that you have a custom logo, you relock, your phone fails to boot and you can't flash anything because you locked it. There is no real valid reason to relock your phone. As for losing carrier unlock, you shouldn't, those are usually permanent. Unless it was some hack which I doubt since I believe that is only for Spring variants. Just follow Uzephi's guide and you should be back to good.
Click to expand...
Click to collapse
Thanks a lot for your help. I will follow Uzephi's to reflash my phone. :good::good::good:

Install custom ROM or root with out unlock bootloader

Hi my Sony Xperia xa2 say bootloader unlock no is there anyway to force software or at least root with out unlock bootloader thanks
This is not possible. In order to flash anything to the device, the bootloader must be unlocked. The whole point of the bootloader lock is to prevent flashing anything; firmware is updated via OTA.

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