[Q] Rooting with locked bootloader and software updates - Xperia Z2 Q&A, Help & Troubleshooting

Does towelroot root the xperia z2 with .314 firmware ? And it roots it with the bootloader locked right? And if yes can i update the stock firmware via ota or pc companion as soon as a new stock firmware is available? Thanks !

@nicojapanese Hi m8, yeah Towelroot will root .314 Firmware (I used it with my locked Bootloader). It may update over OTA but no guarantee. You can update via Pc companion by repairing your phone (you will loose root though) then re- rooting or you can flash a FTF via Flash tool. You can find loads of usefull info and links regarding Bootloaders, Flashtool, rooting and recoveries etc here. Hope this helps ya a bit m8:good:

OTA/Usb updates will fail verifacation if rooted
Unroot and uninstall all mods and it should work, if not flash a FTF using flashtool

Envious_Data said:
OTA/Usb updates will fail verifacation if rooted
Unroot and uninstall all mods and it should work, if not flash a FTF using flashtool
Click to expand...
Click to collapse
Ok how do you unroot a sony xperia z2 with locked bootloader?

stress40 said:
@nicojapanese Hi m8, yeah Towelroot will root .314 Firmware (I used it with my locked Bootloader). It may update over OTA but no guarantee. You can update via Pc companion by repairing your phone (you will loose root though) then re- rooting or you can flash a FTF via Flash tool. You can find loads of usefull info and links regarding Bootloaders, Flashtool, rooting and recoveries etc here. Hope this helps ya a bit m8:good:
Click to expand...
Click to collapse
Ok if i try updating it ota and i brick it. Can i just do a hard reset and would it be working again?

nicojapanese said:
Ok how do you unroot a sony xperia z2 with locked bootloader?
Click to expand...
Click to collapse
Hit the unroot button in the supersu app

nicojapanese said:
Ok if i try updating it ota and i brick it. Can i just do a hard reset and would it be working again?
Click to expand...
Click to collapse
It wont brick if you try OTA update m8. It will just fail verification. Nothing more, nothing less:good:

Envious_Data said:
Hit the unroot button in the supersu app
Click to expand...
Click to collapse
ok thanks . after hitting unroot in supersu i can try updating ota for new stock firmwares?

nicojapanese said:
ok thanks . after hitting unroot in supersu i can try updating ota for new stock firmwares?
Click to expand...
Click to collapse
You can try m8, no guarantees though. What firmware are you on? Do you have root already?

stress40 said:
You can try m8, no guarantees though. What firmware are you on? Do you have root already?
Click to expand...
Click to collapse
im in 314 . no i dont have root. because i dont want to root my phone and when the android l fw comes ill be unable to update.

nicojapanese said:
im in 314 . no i dont have root. because i dont want to root my phone and when the android l fw comes ill be unable to update.
Click to expand...
Click to collapse
Worse case if you root is you'll need to install L as an ftf via flashtool, so if you want root I'd go ahead.

ghostofcain said:
Worse case if you root is you'll need to install L as an ftf via flashtool, so if you want root I'd go ahead.
Click to expand...
Click to collapse
im downloading the xperia flashtool. is that the correct one?

ghostofcain said:
Worse case if you root is you'll need to install L as an ftf via flashtool, so if you want root I'd go ahead.
Click to expand...
Click to collapse
if i install an ftf from another region (generic unbranded nordic) but im from another (philippines) will it be ok?

Related

Quick and easy way of rooting .62 without bootloader unlock

Thankyou to solidsnake81 for pointing this out!!
No need to unlock Bootloader
If you revert to .58 or earlier and root, then update via update centre app in your phone the root remains on the phone whilst you are updated to .62 so the result is a rooted .62 firmware
why not post in the original thread instead of making a new one? no offence but there are 1000's of rooting. 62 threads emerging these days.
thought it would of made it easier for people to see, rather than they going through loads of pages to find it out. ive tried several methods but this seems to be the only one that works .... my appologies
Djscarbo said:
Thankyou to solidsnake81 for pointing this out!!
No need to unlock Bootloader
If you revert to .58 or earlier and root, then update via update centre app in your phone the root remains on the phone whilst you are updated to .62 so the result is a rooted .62 firmware
Click to expand...
Click to collapse
Is this tested to work? I mean, superuser app can remain on the phone but will not actually work for some instances. Please post some confirmation.
SoloRazr said:
Is this tested to work? I mean, superuser app can remain on the phone but will not actually work for some instances. Please post some confirmation.
Click to expand...
Click to collapse
It works.I've used this method several times.
Does this mean your root is actually working after updating to .62 via the Update Center App?
Sorry to sound unconvinced. I just see most posts to have unlocked bootloader to root this new firmware.
UPDATE:
Did not work for me. My phone reboots on the 2nd to the last dot indicator and then says could not install the new firmware after it booted up.
SoloRazr said:
Did not work for me. My phone reboots on the 2nd to the last dot indicator and then says could not install the new firmware after it booted up.
Click to expand...
Click to collapse
Thats because you have modify your system. If you root a fresh installed firmware and make no modifications to it, then root will work after update OTA to .62
Sprinter
Is that so. Will try again.
is flashing the firmware is the only way to go back to .58 or is there any other small process
metalrawk said:
why not post in the original thread instead of making a new one? no offence but there are 1000's of rooting. 62 threads emerging these days.
Click to expand...
Click to collapse
can u point some?
sony ericssons said:
can u point some?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1455216
http://forum.xda-developers.com/showthread.php?t=1500226
There are so many guides about rooting here on xda on youtube and other forums.Learn to use the search button and how to search on google
SoloRazr said:
Is that so. Will try again.
Click to expand...
Click to collapse
Ok, I flashed a fresh .58 firmware, rooted it then updated to .62 over the air and...
it works!
Hi, I have root on .58 but when trying to upgrade to .62 I get error with the application of cellular, Solorazr as you did, what should I do????...
Sent from my SK17i using xda premium
Sorry to sound unconvinced, but I have flashed .58 firmware before, rooted it, then upgrading it to .62 fw and the root is gone.
rolo143 said:
Sorry to sound unconvinced, but I have flashed .58 firmware before, rooted it, then upgrading it to .62 fw and the root is gone.
Click to expand...
Click to collapse
You must update over the air, not with pc companion or seus or any other method like flashtool
T3sla said:
You must update over the air, not with pc companion or seus or any other method like flashtool
Click to expand...
Click to collapse
:O How can I update "over the air"?? I dont know how to update via OTA, is it an app or a site like wotanserver?
rolo143 said:
:O How can I update "over the air"?? I dont know how to update via OTA, is it an app or a site like wotanserver?
Click to expand...
Click to collapse
No it means update through a wireless connection or 3G.Go on settings>sony ericsson> check for updates.
Wifi download strip but I could not be updated, because this root will move or because some system files? I SHOULD DO?????
Sent from my SK17i using xda premium
T3sla said:
You must update over the air, not with pc companion or seus or any other method like flashtool
Click to expand...
Click to collapse
Really? So that means I'm stuck... When I try to do it "over the air" .. it says "yada yada .62 update available" I click it, then it says "You need a computer in order to update your handset".
kevast said:
Hi, I have root on .58 but when trying to upgrade to .62 I get error with the application of cellular, Solorazr as you did, what should I do????...
Sent from my SK17i using xda premium
Click to expand...
Click to collapse
DO this:
Flash a fresh .58 firmware using FlashTool
Root it using DooMlorDs Easy Rooting Kit version 4
Connect to a WiFi or a stable 3G and update via Update Center App on your phone
Done!

Is it safe for OTA update to 62 from rooted 42 & unlock bootloader?

Hi, im currently using neo with rooted (zegrush) .42 firmware and unlocked bootloader.
I juz got an update notification to .62 firmware.
is it safe to update using this? will I experience any bootloop or such if I use the update? anybody with my situation tried the OTA update?
im from Malaysia, if it helps...
thanx in advance!
had_hc said:
Hi, im currently using neo with rooted (zegrush) .42 firmware and unlocked bootloader.
I juz got an update notification to .62 firmware.
is it safe to update using this? will I experience any bootloop or such if I use the update? anybody with my situation tried the OTA update?
im from Malaysia, if it helps...
thanx in advance!
Click to expand...
Click to collapse
Not 100% sure but you may unroot after updating. someone can confirm.
i have locked bootloader, so i don't know if there are problems with unlocked, but my neo was rooted on .42 and stay rooted after .62 ota update.
If you unlocked your bootloader via se official way then no you will brick your phone with a fota update, if you unlocked with setool2 paid for method then you should be fine, but i'm not sure about the setool1 method.
Why not flash with flashtool ?
NO WAY DON´T DO THAT YOU WILL BRICK YOUR PHONE!!!!
Use wotanserver or other way.
testadeferro said:
NO WAY DON´T DO THAT YOU WILL BRICK YOUR PHONE!!!!
Use wotanserver or other way.
Click to expand...
Click to collapse
thanx for that info! Not really thinking of updating but dat notification kinda annoying..
any idea of removing/deleting that notification without moving to .62?
one more question... if i flash with flashtool the .62 firmware, will my bootloader still be unlocked?
Sure it will be unlocked.
The bootloader as nothing to do with the firmware.
To root you must to flash rootxperia.zip through recovery, it´s the easy way.
Search in the foruns and you will find the thread.
had_hc said:
any idea of removing/deleting that notification without moving to .62?
Click to expand...
Click to collapse
uninstall UpdateCenter.apk with titanium backup, or search for it with root explorer or any other explorer with root access.
del1701 said:
If you unlocked your bootloader via se official way then no you will brick your phone with a fota update, if you unlocked with setool2 paid for method then you should be fine, but i'm not sure about the setool1 method.
Why not flash with flashtool ?
Click to expand...
Click to collapse
I have a Neo bought unlocked with 2.3.3, I made OTA update and I briked my phone. After restore, first I flashed with a new 2.3.3 and after used x10 flash tool, I rooted with DoomLoRD_v4_ROOT. I received that is a new software update available, I was affraid to do it by OTA and I done with pc software update from SE. After update I still have superuser app but my neo is not rooted.
How can I root it again without any flashes or downgrade. Is out there any app working? I tried with Gingerbreak, SoperOneClick v2.3.3 and DoomLoRD_v4_ROOT, but no result.
remav said:
I have a Neo bought unlocked with 2.3.3, I made OTA update and I briked my phone. After restore, first I flashed with a new 2.3.3 and after used x10 flash tool, I rooted with DoomLoRD_v4_ROOT. I received that is a new software update available, I was affraid to do it by OTA and I done with pc software update from SE. After update I still have superuser app but my neo is not rooted.
How can I root it again without any flashes or downgrade. Is out there any app working? I tried with Gingerbreak, SoperOneClick v2.3.3 and DoomLoRD_v4_ROOT, but no result.
Click to expand...
Click to collapse
Search for ''how to root .62 firmware''
remav said:
I have a Neo bought unlocked with 2.3.3, I made OTA update and I briked my phone. After restore, first I flashed with a new 2.3.3 and after used x10 flash tool, I rooted with DoomLoRD_v4_ROOT. I received that is a new software update available, I was affraid to do it by OTA and I done with pc software update from SE. After update I still have superuser app but my neo is not rooted.
How can I root it again without any flashes or downgrade. Is out there any app working? I tried with Gingerbreak, SoperOneClick v2.3.3 and DoomLoRD_v4_ROOT, but no result.
Click to expand...
Click to collapse
How is you bootloader unlocked? Official way, s1tool or setool2?
And you can't root .62 without downgrading first to .42. But I guess that trick only works for bootloaders unlocked NOT BY OFFICIAL way, but still not sure, that's why I'm asking you.

[query]System Update can void root access?

I'm currently using a Sony LWW which is running on Extended Stock kernel and Rooted Sony Official ICS and I've got a System Update. On updating, will I lose my root access?
if its ota update, probably not.
what's an OTA update?
I'm on build .431 right now and it's an update to .587.
What're the probable the changes?
simon4u92 said:
what's an OTA update?
I'm on build .431 right now and it's an update to .587.
What're the probable the changes?
Click to expand...
Click to collapse
It's over the air, don't accept it! Otherwise your device will brick!!!!!
You can only flash the .ftf and after that a prerooted kernel, but don't make updates over the air when your bootloader is unlocked
mihahn said:
It's over the air, don't accept it! Otherwise your device will brick!!!!!
You can only flash the .ftf and after that a prerooted kernel, but don't make updates over the air when your bootloader is unlocked
Click to expand...
Click to collapse
Frankly speaking, that sounded a little sarcastic for some reason.
Anyways, what do I do now? How do I get that notification off my notification bar/drawer?
simon4u92 said:
Frankly speaking, that sounded a little sarcastic for some reason.
Anyways, what do I do now? How do I get that notification off my notification bar/drawer?
Click to expand...
Click to collapse
Uninstall update center will solve your problem. You don't need it anyway. Or flash the .ftf which should be uploaded somewhere here on xda
i think it wont brick your phone as long as you have a locked bootloader. but you will lose your root access
adin234 said:
i think it wont brick your phone as long as you have a locked bootloader. but you will lose your root access
Click to expand...
Click to collapse
It will brick his phone, because his bootloader is unlocked (he is using extended stock kernel!). So don't accept the update!
mihahn said:
It will brick his phone, because his bootloader is unlocked (he is using extended stock kernel!). So don't accept the update!
Click to expand...
Click to collapse
:good:
so to TS, you may relock bootloader and root via the downgrade and update method if you really want the .587 update
adin234 said:
:good:
so to TS, you may relock bootloader and root via the downgrade and update method if you really want the .587 update
Click to expand...
Click to collapse
If I were him, I'd wait for someone who upload the .587 ftf. Then he can just flash it and a prerooted kernel like rage kernel for 4.0.4 and he has the latest rooted sony ics firmware
I will just chuck the update and uninstall update center as advised.
Thanks a lot for the info guys
Update to .587 and then follow this tutorial to root your phone. I did it already!

regarding update .136

Hi guys,
Just realized there is a new update. I am on rooted .290 model C6802,
Here are my few questions:
1. Do i need to update it from Sony Pc Companion ? As on rooted fw there is no notification for any updates.
2. Do i get to keep root ?
3. Will I still have an unlocked bootloader?
4. Will I still have a stock kernel ?
5. How do i update it to a clean stock rom will every thing 'untouched' ? Wanna check a few things and then root later.
6. Any improvement in this fw ?
7. how do i keep track of fw update as my ultra doesnt deliver me any notification ?
1. You have to update it through PC Companion or SUS..
2. No doubt your root will be lost..
3. To keep the root you've to first update then unlock the Bootloader of your device..which will void your warranty unless you take a TA backup and then unlock..
4. To root on your lock Bootloader you've to wait for a while..
Revert back if you need anymore info..
Hit Thanks if I helped you..
Sent from my LT26i using xda app-developers app
Pannam said:
Hi guys,
Just realized there is a new update. I am on rooted .290 model C6802,
Here are my few questions:
1. Do i need to update it from Sony Pc Companion ? As on rooted fw there is no notification for any updates.
2. Do i get to keep root ?
3. Will I still have an unlocked bootloader?
4. Will I still have a stock kernel ?
5. How do i update it to a clean stock rom will every thing 'untouched' ? Wanna check a few things and then root later.
6. Any improvement in this fw ?
7. how do i keep track of fw update as my ultra doesnt deliver me any notification ?
Click to expand...
Click to collapse
1. I've not see anyone with an ota update, I think they have all been PCC or flashing a FTF
2. The FTF kills root, not sure about PCC. Root is easy to get back with a unlocked bootloader http://forum.xda-developers.com/showthread.php?t=2630781
3. Wont touch the BL state
4. Yes
5. Um... just flash the FTF or via PCC - make a nandroid backup beforehand of cause
6. There is a thread about this in grneral
7. Plug in the ultra to a PC, some of the updates have come as OTA, but will normally fail on a rooted device
Thank you for the reply
The update doesnt work from the pc companion on rooted devices.
Pannam said:
Thank you for the reply
The update doesnt work from the pc companion on rooted devices.
Click to expand...
Click to collapse
That leaves two causes, unroot and flash via PCC or flash the FTF from flashtool. Plenty of ways to get root back if you have an unlocked bootloader now
FTFs are here http://forum.xda-developers.com/showthread.php?t=2453921
For now I am trying to decrypt the file I downloaded from pcc. Hope I can make a ftf then.
I tried the depository but cant find one for C6802.
Pannam said:
For now I am trying to decrypt the file I downloaded from pcc. Hope I can make a ftf then.
I tried the depository but cant find one for C6802.
Click to expand...
Click to collapse
I have the c6802 and flashed the 6833 version, no real issues except the phone will think it's a c6833 :silly:
blueether said:
I have the c6802 and flashed the 6833 version, no real issues except the phone will think it's a c6833 :silly:
Click to expand...
Click to collapse
Lol! But C6833 is an LTE variant. I think it will drain battery. I guess c6802 should work better on its dedicated stock fw.
Anyways u knw better.
btw to unroot you need a locked bootloader. To avoid bootloops a stock kernel is required rt ? I am on fw. 290 but cant find the stock kernel anywhere.

Xperia Z2 Android 4.4.4 (23.0.1.A.0.167) ROOT AND RECOVERY

Is there any root available? Does the old method works? Also does it work on locked bootloaders?
tazoman said:
Is there any root available? Does the old method works? Also does it work on locked bootloaders?
Click to expand...
Click to collapse
I recently rooted my locked z2 with this file. And for recovery i used http://forum.xda-developers.com/showthread.php?t=2785598
Dont forget to hit the thanks button
Surajn97 said:
I recently rooted my locked z2 with this file. And for recovery i used http://forum.xda-developers.com/showthread.php?t=2785598
Dont forget to hit the thanks button
Click to expand...
Click to collapse
anyone try ????
Surajn97 said:
I recently rooted my locked z2 with this file. And for recovery i used http://forum.xda-developers.com/showthread.php?t=2785598
Dont forget to hit the thanks button
Click to expand...
Click to collapse
R U talking about latest fw?
tazoman said:
Is there any root available? Does the old method works? Also does it work on locked bootloaders?
Click to expand...
Click to collapse
Not at this moment no, but it appears that a pre-rooted zip isn't far off.
ghostofcain said:
Not at this moment no, but it appears that a pre-rooted zip isn't far off.
Click to expand...
Click to collapse
not too far off
http://scr.hu/2tqx/5nj0a
Envious_Data said:
not too far off
http://scr.hu/2tqx/5nj0a
Click to expand...
Click to collapse
Could you provide a link to the the zip (or thread if any) to check it out? I would love to have a bit of hands on experience with the newest fw.
P.S: Havent tried it, I cant live without root .
Thanks
DaGhostman said:
Could you provide a link to the the zip (or thread if any) to check it out? I would love to have a bit of hands on experience with the newest fw.
P.S: Havent tried it, I cant live without root .
Thanks
Click to expand...
Click to collapse
for now ill post another screenshot as it isnt uploaded
http://scr.hu/2tqx/oo4fw
you will find a thread in the development section when its done uploading
there are some small problems which i wont be able to fix just becaue of lack of time, ill be leaving it upto Niaboc if he wants to fix it
Thanks for the fast reply! Can't wait to get on it.
This rooting method doesn't work on latest 4.4.4 for Z2
Sent from my D6503
Is it the latest 4.4.4 for Z2? And is it pre rooted? Which means can I flash this on my locked Z2?
Sent from my D6503
tazoman said:
This rooting method doesn't work on latest 4.4.4 for Z2
Sent from my D6503
Click to expand...
Click to collapse
Please, let me know when it will be possible to ROOT 23.0.1.A.0.167 Stock fw with locked bootloader. I will be very grateful.
Pishtiko said:
Please, let me know when it will be possible to ROOT 23.0.1.A.0.167 Stock fw with locked bootloader. I will be very grateful.
Click to expand...
Click to collapse
You will likely be waiting some time, because it's possible to downgrade and flash pre-rooted zip or to OTA certain FW's maintaining root, I don't see devs putting a lot of effort into finding an exploit. That said best hope is probably an exploit being found for Z3 which is transferable to Z2, but as I say you may be waiting some time.
So what you recommend to do if i want to have root on 167?
Tusnal said:
So what you recommend to do if i want to have root on 167?
Click to expand...
Click to collapse
Try to create a rooted update package from the update ftf: [4.4.4] Create ROOTED update package from stock FTF [LOCKED BOOTLOADER]
So I need to flash dual recovery to do that
How can I make a full stock backup just in case I need to use it for warranty?
Tusnal said:
So I need to flash dual recovery to do that
How can I make a full stock backup just in case I need to use it for warranty?
Click to expand...
Click to collapse
You don't need, you can flash back an original ftf anytime or repair with Sony PC Companion. We are talking locked bootloadr, so until you don't unlock it, you have warranty.
But if you already have root on prev. firmware, you should install DualRecovery and boot into TWRP and you can backup your system there.
norti said:
You don't need, you can flash back an original ftf anytime or repair with Sony PC Companion. We are talking locked bootloadr, so until you don't unlock it, you have warranty.
But if you already have root on prev. firmware, you should install DualRecovery and boot into TWRP and you can backup your system there.
Click to expand...
Click to collapse
I just bought the phone and I really miss root hehe so if I don't unlock the bootloader I can change recovery and flash a stock root rom without losing warranty?
Tusnal said:
I just bought the phone and I really miss root hehe so if I don't unlock the bootloader I can change recovery and flash a stock root rom without losing warranty?
Click to expand...
Click to collapse
Yes, if you have older firmware on the phone, you can try the root options available and you can use recovery without unlocking th bootloader. If you have the latest, than you can possibly flash an older firmware to your phone and root that. But you need to read a bit, to understand everything correctly.
I have successfully rooted my Z2 on 4.4.4 locked bootloader
Sent from my D6503

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