How to reset xperia z1 totally (custom rom installed) - Xperia Z1 Q&A, Help & Troubleshooting

Hi I want to totally reinstall all the software and take the custom rom of my xperia z1. It has an unlocked boot loader.
Can I do this through PC companion?
If not, how would I do it? thanks

TagEHeuer said:
Hi I want to totally reinstall all the software and take the custom rom of my xperia z1. It has an unlocked boot loader.
Can I do this through PC companion?
If not, how would I do it? thanks
Click to expand...
Click to collapse
The easiest way is to use Flashtool. Just download an FTF of newest firmware and flash it using the software:
Once you are on a stock rom with stock kernel you can restore TA backup (if you have one), this will also relock your bootloader. It is best to restore TA on the same firmware that you did the backup.

Related

[Q] Custom ROM question

A quick question. If i install a custom rom in my xperia z, Can i go back to original by sony by Updating it from Sony Pc Companion ??? is it possible or I\ll have to install original software manually ?
hdrsid said:
A quick question. If i install a custom rom in my xperia z, Can i go back to original by sony by Updating it from Sony Pc Companion ??? is it possible or I\ll have to install original software manually ?
Click to expand...
Click to collapse
Should be fine using PC Companion as long as you don't unlock the bootloader. Restoring to a stock firmware isn't to hard anyway using Flashtool
Yes you can just by using Flashtool and downloading a ftf, easy and handy to have when you are on locked bootloader.
PC Companion wipes your data unlike flashtool (just untick wipe data
Sent from my C6603 using xda premium

[Q] Help with Reverting/Relocking

So I installed CM10.2 on my phone. For that I had to root and unlock my bootloader. I didn't really like it to be honest so I decided that I wanted to go back to stock rom, the problem however, is that i'm not sure how I should do this. I made a backup of my TA Partition so I also could get my DRM keys (Bravia Engine, etc) back. I don't know what I should do first and I was wondering if there is someone who could help me through this process. Do I first need to flash stock kernel, then flash stock ftf, and then install that TA backup in order to relock my bootloader? But I thought I needed root for this, if I flash a stock ftf then root will be gone right? So many questions
Thank you in advance
parfa10 said:
So I installed CM10.2 on my phone. For that I had to root and unlock my bootloader. I didn't really like it to be honest so I decided that I wanted to go back to stock rom, the problem however, is that i'm not sure how I should do this. I made a backup of my TA Partition so I also could get my DRM keys (Bravia Engine, etc) back. I don't know what I should do first and I was wondering if there is someone who could help me through this process. Do I first need to flash stock kernel, then flash stock ftf, and then install that TA backup in order to relock my bootloader? But I thought I needed root for this, if I flash a stock ftf then root will be gone right? So many questions
Thank you in advance
Click to expand...
Click to collapse
[Tutorial] Xperia Z & ZL Bootloader Unlocking/Relocking
:good:
hit thanks
x102x96x said:
[Tutorial] Xperia Z & ZL Bootloader Unlocking/Relocking
:good:
hit thanks
Click to expand...
Click to collapse
Thank you for your response but this is only relocking etc. My problem is that I don't know in what order I should do things. So far I think I should do it like this (but i'm not sure, so i'm asking for someone to tell me if it's wrong) : 1. Simply flash a stock ftf (with the ftf the stock kernel will be installed too, right?) 2. Relock bootloader 3. Then apply the TA Backup to get the DRM Keys back.
Is this the right order to do things? Will I make an expensive brick out of it if I do it like that?
Flash a stock FTF and root it (or flash a pre-rooted stock based ROM through recovery ). Then restore TA, which will automatcally lock bootloader and restore DRM keys
Sent from my C6603 using xda app-developers app
shoey63 said:
Flash a stock FTF and root it (or flash a pre-rooted stock based ROM through recovery ). Then restore TA, which will automatcally lock bootloader and restore DRM keys
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Thank you very much, I tried this and it worked.

[Q] How to go back to Stock official ROM sony xperia z1

I'm on ihackers 2.1 ROM android 4.3
rooted
unlocked bootloader
I wanted to go back to stock to C6902_14.2.A.0.290
I found the method but I'm not sure if this is the right way http://lionking853.blogspot.co.uk/2013/11/how-to-go-back-to-stock-firmware-on.html
and if it is the right way, after going back to stock ROM, will my phone unroot and relock again?
Can I just go ahead and do this or must I relock bootloader first?
please help me since I never done this before, only rooted and unlock that I did.
Thank you so much folks
Hey u have to flash 4.2 first pure stock by flashtool using ftf,root it install recovery only if uve got TA BACKUP.Make sure ur on pure stock before restoring TA.Restore TA backup will relock bootlader then flash 4.3 ftf.If no TA backup then u can directly flash stock 4.3 ftf through flashtool & relock it using flashtool
Sent from my C6902 using XDA Premium 4 mobile app
thanks
RISHI RAJ said:
Hey u have to flash 4.2 first pure stock by flashtool using ftf,root it install recovery only if uve got TA BACKUP.Make sure ur on pure stock before restoring TA.Restore TA backup will relock bootlader then flash 4.3 ftf.If no TA backup then u can directly flash stock 4.3 ftf through flashtool & relock it using flashtool
Sent from my C6902 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I downloaded stock C6902_14.2.A.0.290 which is 4.3 it's the tft file
can I just flash it using flashtool? I want to wipe everything, no need to back up, I mean I want it to feel like a brand new phone. like factory reset.u know, and It doesn't matter about root or bootloader,
thanwachai said:
I downloaded stock C6902_14.2.A.0.290 which is 4.3 it's the tft file
can I just flash it using flashtool? I want to wipe everything, no need to back up, I mean I want it to feel like a brand new phone. like factory reset.u know, and It doesn't matter about root or bootloader,
Click to expand...
Click to collapse
if you don't want to relock your bootloader then just go back to .290 with flashtool
ok
Ahki767 said:
if you don't want to relock your bootloader then just go back to .290 with flashtool
Click to expand...
Click to collapse
Thank you, I'll do that
done
I'm finally back to stock ROM and it's much faster than custom ROM
I think it is much more stable too.
I'm no longer rooted anymore but bootloader is still unlocked.
I'm happy now
You can install custom kernel & have root
Sent from my C6902 using XDA Premium 4 mobile app
root
RISHI RAJ said:
You can install custom kernel & have root
Sent from my C6902 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
custom Kernel ? what is really a function to flash a kernel, I mean i have stock ROM, isn't the kernel already compatible? to root, maybe in the future,
Will I be able to update firmware via Sony PC companion? now .290
but the new firmware .136
I have unlocked bootloader
thanwachai said:
custom Kernel ? what is really a function to flash a kernel, I mean i have stock ROM, isn't the kernel already compatible? to root, maybe in the future,
Will I be able to update firmware via Sony PC companion? now .290
but the new firmware .136
I have unlocked bootloader
Click to expand...
Click to collapse
If you have an unlocked bootloader, you will not be able to update using PC Companion. I didnt know all this **** were involved in Sony phones.
I had unlocked my bootloader a couple of days back, didnt know I had to backup my DRM keys and ended up losing my warranty. Now I cant even update my phone using the official updating method.
BTW... the recovery is bundled with the kernel, thats why people refer to it as flashing a kernel instead of recovery. I didnt know this until 2 days back.
Thanks
subhramani said:
If you have an unlocked bootloader, you will not be able to update using PC Companion. I didnt know all this **** were involved in Sony phones.
I had unlocked my bootloader a couple of days back, didnt know I had to backup my DRM keys and ended up losing my warranty. Now I cant even update my phone using the official updating method.
BTW... the recovery is bundled with the kernel, thats why people refer to it as flashing a kernel instead of recovery. I didnt know this until 2 days back.
Click to expand...
Click to collapse
oh thank you
oh so I can't update via pc companion TT
please teach me the easiest way to relock bootloader
Thanks
done relock bootloader
Thanks anyway but I found the method and my phone now relocked bootloader
If you do have a TA backup then you don't have to do anything else then restoring it on a stock rooted firmware..If you don't then use flashtool to relock it..
Revert back for more help..
Hit Thanks if I helped you..
Sent from my LT26i using xda app-developers app
If I am on a Locked Bootloader and on a rooted custom ROM, will Sony PC Companion detect my phone when the next update comes??
This is stupid. If you are in 4.3 (.290) with un-locked boot loader you cant update via PC companion or SUS.
I ended up going to 534 (4.2) via flashtool. Root it, restore TA backup and then use SUS to update. And flashing the latest 4.3 via Flashtool din work.
No PC Companion or SUS won't detect your phone.. You've to manually flash a valid ftf from Flashtool.. Then you can connect & update your phone through PC Companion or SUS..
Sent from my LT26i using xda app-developers app
ZACQ8 said:
If I am on a Locked Bootloader and on a rooted custom ROM, will Sony PC Companion detect my phone when the next update comes??
Click to expand...
Click to collapse
I'm ok now, I'm on the latest firmware and everything works
Sent from my C6902 using xda premium
I'm good now, latest firmware and all perfect
Sent from my C6902 using xda premium
help me with process
thanwachai said:
Thanks anyway but I found the method and my phone now relocked bootloader
Click to expand...
Click to collapse
Cna you help me, how you go the relocking and stock-rom done?
thanks
Sumit
Reverting back to Stock
thanwachai said:
I'm good now, latest firmware and all perfect
Sent from my C6502 using xda premium
Click to expand...
Click to collapse
Do you still have the files? I'm looking to revert my C6602 (US) back to factory settings to I can allow PC companion to update the software.
(I'm looking to give the phone to someone, and they wont want to mess around with flashing and so on)
I'm using z1 stock rom lolipop
I tried in last two days king root its failed twice on version 4.1
then i found somewhere 4.0 with working root i tried and sucess!
then i installed titanium,greenify used phone for a day now want to backup drm for going to install custom reovery and custom roms !!!! what are my steps i failed during taking backup on drm keys..... what should i do i tried factory reset my phone now king user inside but phone is not rooted..... !!!!!!!!!!

[q] help getting device modified in sony pc companion

Ive got android .136 ftf rooted z1 after which i flashed .681 ftf in z1 with flashtool
it cause my phone back to unroot and on to stock ftf,,,
but when i updated it on latest update which is bug fix of 4.4 ive got ur device is modifies cant update after downloading ftf in sony pc companion...neither i am not able to find files in sony/update/ob/300098/ nothing.....help me to get my mobile back on proper stock...
Did you Unlocked your Bootloader?
yaa of course i unlock my bootloader
Yaa i unlock bootloader but i backup my TA also..kindly tell me to relock it if problem is due to this
You cannot use PCCompanion with an unlocked bootloader
Also, if you flashed a FTF in flashtool then you are on a stock ROM
how to relock my bootloader
Kindly tell me process to relock bootloader..i have unroot z1 on 4.4
restore the TA backup you made before unlocking.
Use the same tool you used to make the backup

how to root zr 4.3?

is it possible to root zr with 4.3 updates?
im on locked bootloader. should i unlocked my bootloader? if so, how?
please help me this is urgent. i need to root my zr asap to be able to restore my app data. really important
w1040 said:
is it possible to root zr with 4.3 updates?
im on locked bootloader. should i unlocked my bootloader? if so, how?
please help me this is urgent. i need to root my zr asap to be able to restore my app data. really important
Click to expand...
Click to collapse
i don't recommend you to unlock bootloader as there's many steps to do which takes time.
so you will just need to downgrade to 4.2.2 firmware by flashing the ftf,then root it & install custom recovery,after that flash a pre-rooted 4.3 rom.
Ben Ling said:
i don't recommend you to unlock bootloader as there's many steps to do which takes time.
so you will just need to downgrade to 4.2.2 firmware by flashing the ftf,then root it & install custom recovery,after that flash a pre-rooted 4.3 rom.
Click to expand...
Click to collapse
too late. i already unlocked my bootloader. but after i unlocked it, my phone on bootloop but i managed to enter cwm. the 'free xperia' and 'xperia' logo keeps coming out if i try to boot my phone. looks like im on a wrong firmware to unlock my bootloader.
now im downloading (C5502) 10.4.B.0.569 tft files and flash it via flashtool, then im gonna try to again if my phone will boot or not.
@Ben Ling
I am new this rooting to. And I want to install a custom rom on my Xperia ZR. How do I downgrade to the previous ROM? Do I just use the flash tool? Is it necessary to backup my TA partition during this process or can I do it when I am about to root the device?Thanks!
samavedam_vijay said:
@Ben Ling
I am new this rooting to. And I want to install a custom rom on my Xperia ZR. How do I downgrade to the previous ROM? Do I just use the flash tool? Is it necessary to backup my TA partition during this process or can I do it when I am about to root the device?Thanks!
Click to expand...
Click to collapse
download the 4.2.2 ftf,flash it then root it & install recovery
then flash custom rom (only based on 4.3 & stock firmware)
Thank you
So basically these are the steps which I need to perform
1)Download and run flash tool
2)Download the correct ftf and flash it via flash tool
3)Root the phone using doomlord's vroot kit
4)Backup the TA partition
5)Unlock the bootloader
6)Install custom rom
Please confirm if these are the steps to be followed
Thanks!
If you only want root you dont need to unlock bootloader and backup TA.
Sent from my C5503 using XDA Premium 4 mobile app
hans3103 said:
If you only want root you dont need to unlock bootloader and backup TA.
Sent from my C5503 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I live in India so would there be an India specific rom(Stock) for my phone?
@Ben Ling I rooted my zr by flashing 4.1.2 . I have also backed up the TA partition. Can you please suggest any good ROMS now? What should I choose stock based ROMS or AOSP roms like Carbon?
Also, If I want to come back to stock ROM(4.3) again what should I do?
Thanks!
samavedam_vijay said:
@Ben Ling I rooted my zr by flashing 4.1.2 . I have also backed up the TA partition. Can you please suggest any good ROMS now? What should I choose stock based ROMS or AOSP roms like Carbon?
Also, If I want to come back to stock ROM(4.3) again what should I do?
Thanks!
Click to expand...
Click to collapse
if you want 4.4,then just try the carbon rom
for 4.3,try this.. http://forum.xda-developers.com/showthread.php?t=2726463
for back to stock,you will just need to backup your current 4.3 rom,then if you want to restore,just restore
but the backup will only restore by using the same recovery that you backup.
@Ben Ling Thankyou! One more question before I installed the 4.3 ROM which you mentioned, do I need to unclock the bootloader to install the ROM?
samavedam_vijay said:
@Ben Ling Thankyou! One more question before I installed the 4.3 ROM which you mentioned, do I need to unclock the bootloader to install the ROM?
Click to expand...
Click to collapse
no

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