Unroot - Galaxy S II Q&A, Help & Troubleshooting

Hello
i m new on android (india)actullay my fone run was 2.3.3 some where i read is new update available 2.3.6 then i download this fw on my pc and flash via odin and then i root my fone. Now problem is i want unroot my fone and i dont know how so pls help me.
Sorry for my bad eng

Simply reflash your phone again by a stock official ROM. You can also use "Unlock Root" , you can get it here :
http://www.unlockroot.com/

Related

How to get back to the original thing

How can I get back to the original x10i ?
What I did was..
1) I flashed my phone to get to 2.3.3
2) I rooted my phone
3) I installed wolf's rom
Need to know how to get back to my original device.. unrooting and installing the original update..
u can either flash the ftf file in the "xperia x10 roll out map" in general section if there isnt then u might have to PM the OP or something
otherwise u can flash 2.1 FW of your operator through flashtool then your phone will see the update if the operator release
i think
cheers
Are there any proper instructions on how to do it ?
I am confused that I will need to unroot also or not ?

[Q] LWW Orange v62 with locked bootloader

Hi. I have problem with my SE becouse i update my phone to v62. I cant root becouse is not possible on this soft version. I cant unlock bootloader cuz bootAllowed=no . I can install fresh ROM via flashtool? When no what i must do? Please help. (Sorry for my english).
You can only install a fresh stock .58 rom via flashtool or wotanserver then root it then update it .62 (now with root) then install clockworkmod recovery. You then have to pay to unlock your bootloader. You can't install custom full roms and custom kernels w/out unlocking bootloader.
andrew550 said:
Hi. I have problem with my SE becouse i update my phone to v62. I cant root becouse is not possible on this soft version. I cant unlock bootloader cuz bootAllowed=no . I can install fresh ROM via flashtool? When no what i must do? Please help. (Sorry for my english).
Click to expand...
Click to collapse
These threads can help:
http://forum.xda-developers.com/showthread.php?t=1559685
http://forum.xda-developers.com/showthread.php?t=1512530
Hello, I used this thread as a guideline to root my phone.
http://forum.xda-developers.com/showthread.php?t=1568792
Basically I had to downgrade the firmware to .42 with the ftf file on that thread flashing it with flashtool (link for flashtool also provided in that thread), use zergrush to gain root access and install both busybox and Superuser.apk (it's fixed in .62 so you can no longer gain root with zergrush) and then update the phone using OTA back to .62. Updating to .62 does not make you lose root access. All you need should be in that thread.
If you want to unlock the bootloader to install custom roms and kernel I can't point you to a method that works for sure since I have no intention of unlocking mine as I am quite happy with the stock rom but there are plenty of threads on this forum about it.
Hope this helps!

downgrade to gingerbread

he guys i wanna know how can i downgrade my galaxy s2 i9100p O2 version to gingerbread the one thtt the device came with
ot now has official ICS which i downloaded from kies but it has many problem so i wanna go back
pls help
search for the stock version of gb that u had. download it. use ODIN to install it..if it's not working OK (bootloop, or else) isntall it via odin again...
next time...search..
hamzaq533 said:
he guys i wanna know how can i downgrade my galaxy s2 i9100p O2 version to gingerbread the one thtt the device came with
ot now has official ICS which i downloaded from kies but it has many problem so i wanna go back
pls help
Click to expand...
Click to collapse
Go to www.sammobile.com find your stock firmware, download and flash through odin.

[Q] Upgrade Firmware after rooting and unlooking the device(samsung galaxy s2)

Dear ALL.
Recently i succeded in rooting and unlocking my S2 after help of everybody in this forum.
I have the ROM 4.04.4 and super user permission with CF-ROOT .
Now the big question is:
a) Can i continue doing upgrade to my mobile via Kies like normal way?or do flash via odin ?
b) do i need to do root and unlock my SIM CARD everytime i do the upgrade to latest ROM my S2 galaxy?
c) If we do one time root and unlock process is this preserved for eternity ?
Regards
Vinay Navinchandra
vinayoni said:
Dear ALL.
Recently i succeded in rooting and unlocking my S2 after help of everybody in this forum.
I have the ROM 4.04.4 and super user permission with CF-ROOT .
Regards
Vinay Navinchandra
Click to expand...
Click to collapse
Now the big question is:
a) Can i continue doing upgrade to my mobile via Kies like normal way?or do flash via odin ?
Yes,u can upgrade ur Mobile via Kies as long as u stay with Stock Samsung firmware, if update not available vide 'OTA' or 'KIES' then u can update via ODIN flash
b) do i need to do root and unlock my SIM CARD everytime i do the upgrade to latest ROM my S2 galaxy?
Yes, u need to root every time u update ur phone to a latest stock firmware by any one of the above method, but regarding unlock am afraid havent got much to say about it
c) If we do one time root and unlock process is this preserved for eternity ?
NO, if u keep upgrading to latest Stock Firmware's
Yes, if u install only custom roms based on ICS or JB
Sun90 said:
Now the big question is:
a) Can i continue doing upgrade to my mobile via Kies like normal way?or do flash via odin ?
Yes,u can upgrade ur Mobile via Kies as long as u stay with Stock Samsung firmware, if update not available vide 'OTA' or 'KIES' then u can update via ODIN flash
b) do i need to do root and unlock my SIM CARD everytime i do the upgrade to latest ROM my S2 galaxy?
Yes, u need to root every time u update ur phone to a latest stock firmware by any one of the above method, but regarding unlock am afraid havent got much to say about it
c) If we do one time root and unlock process is this preserved for eternity ?
NO, if u keep upgrading to latest Stock Firmware's
Yes, if u install only custom roms based on ICS or JB
Click to expand...
Click to collapse
Hello Sir .
Thank you for the reply.
Regarding my last question which is question C the "yes " means that if i keep upgrading the custome ROMS which have some changes of STOCK ROM in same enviornment i dont need to root again the device am i right?.
What can i conclude that any ORIGAl ROM(STOCK ROM) needs to do root after upgrads.
My last and big question is :
d) Why this behaviour? why cannot we do root for ever and ever? so it means that if i bye a device which comes locked from local operator it will never like as the one that comes unlocked originaly.???? there will be always a difference between device which is rooted from factory and which is rooted by use....why this differences?????
:crying:
Regards
Vinay
vinayoni said:
Hello Sir .
Thank you for the reply.
:crying:
Regards
Vinay
Click to expand...
Click to collapse
Regarding my last question which is question C the "yes " means that if i keep upgrading the custome ROMS which have some changes of STOCK ROM in same enviornment i dont need to root again the device am i right?.
YES
What can i conclude that any ORIGAl ROM(STOCK ROM) needs to do root after upgrads.
YES
My last and big question is :
d) Why this behaviour? why cannot we do root for ever and ever? so it means that if i bye a device which comes locked from local operator it will never like as the one that comes unlocked originaly.???? there will be always a difference between device which is rooted from factory and which is rooted by use....why this differences?????
The behavior and Differences are there for now and we have to accept it and live by it, thats all i can say for now

Will i lose ROOT ?

Hi all
I have a Xperia Z2 SGP521. I downgraded to version 17.1.A.2.69
I did that with Flashtool. Afterwards i rooted with Towelroot and installed SUPERSU.
Now i have full root.
I get the message that there is an OTA update. Can i do that without loosing ROOT ?????
Can i flash the stock Lollipop ROM without loosing ROOT (from Experifirm) ?
Does someone have a firmware package (FTF) prerooted wich i can flash with flashtool. I dont want to flash recovery....because i lost all my data triing that
If you find this Q to be obsolete because it is asked a million times......neglect it.
There is so mucg info on this but not with the ezact firmwares i use or wanna use and i have been told this device can brick easy. So this Q is to be shure !!!
THNX in advance forhelping comments.
greetz
Can be closed !!!!!!!

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