[Q] I'm currently on a custom ROM, how do I go back to stock ROM? - Xperia Z1 Q&A, Help & Troubleshooting

Hey guys, I'm currently on a custom ROM on my C6903, I was wondering what the procedure would be to install the stock lollipop sony will be releasing soon on my device? I have an unlocked bootloader with TWRP recovery.
Thanks.

YaqubYahya said:
Hey guys, I'm currently on a custom ROM on my C6903, I was wondering what the procedure would be to install the stock lollipop sony will be releasing soon on my device? I have an unlocked bootloader with TWRP recovery.
Thanks.
Click to expand...
Click to collapse
Flash stock ftf for your z1 then restore TA partition... Be sure to be on stock rom and kernal before restoring TA.. Stock roms can be now downloaded from flashtool directly...:thumbup:

kathanpatel1001 said:
Flash stock ftf for your z1 then restore TA partition... Be sure to be on stock rom and kernal before restoring TA.. Stock roms can be now downloaded from flashtool directly...:thumbup:
Click to expand...
Click to collapse
How do I flash stock rom through recovery or through flashtool? Ooh okay can you link me to the new flash tool please?

YaqubYahya said:
How do I flash stock rom through recovery or through flashtool? Ooh okay can you link me to the new flash tool please?
Click to expand...
Click to collapse
I use flash tool to flash stock .ftf file...
Flash tool can be download from here..
http://www.flashtool.net/downloads.php

kathanpatel1001 said:
I use flash tool to flash stock .ftf file...
Flash tool can be download from here..
http://www.flashtool.net/downloads.php
Click to expand...
Click to collapse
Thanks

Related

how to flash jb kernel .ftf by cwm ?

i am updating my phone to jellybean, and for this, i need to flash jb kernel, bt cwm has no any option to flash that kernel because kernel is in .ftf, and only zip file can be flashed. what should i do ?
You can't flash kernel from CWM. You have to do it with Flashtool.
http://forum.xda-developers.com/showthread.php?t=986697
Yep, do it via flashtool bro. Next time be sure to search please
Sent from my X8 using Tapatalk 2
Please....flash kernels using flashtool....
Sent from my E15a using xda premium
have you unlock your device ?
you don't understand about how to flash custom kernel...so its mean you don't understand about how to unlock bootloader.
Before flashing custom rom you must read "Requrement and Installation" carefully.
tkox.hell said:
i am updating my phone to jellybean, and for this, i need to flash jb kernel, bt cwm has no any option to flash that kernel because kernel is in .ftf, and only zip file can be flashed. what should i do ?
Click to expand...
Click to collapse
frist unlock bootloader:( http://forum.xda-developers.com/showthread.php?t=1267273 )
second flash kernel with flashtool
third install ROM
DONE!

help please

hai guys i am new on Samsung.. I need some help.i have rooted my sony and installed custom ROMS. And as I am new to samsung am little confused. how can i root my S advance and install custom ROM . do I need to unlock the bootloader for installing JB.Currently having a GB version with DDLK2 firmware.. cant find anything about DDLK2 on the forum. please help
http://forum.xda-developers.com/showthread.php?t=2198341
This should help. And please post in the right section
Sent from my GT-I9070 using xda premium
got a problem.. I tried this method http://forum.xda-developers.com/showthread.php?t=1660419 and when i tried to install DDLK2 firmware but failed and i installed rootkernal itself.. after am able to switch on the phone but it is continuously getting restarted.. help please..
Vivek ps said:
got a problem.. I tried this method http://forum.xda-developers.com/showthread.php?t=1660419 and when i tried to install DDLK2 firmware but failed and i installed rootkernal itself.. after am able to switch on the phone but it is continuously getting restarted.. help please..
Click to expand...
Click to collapse
use kies or find your firmware country on sammobile
and please read the rules of xda
ps: or use "update software" in sittings\ about phone\...\
what can i do when phone is contnsly getting restarted??.. when i removed the sim card. then phone is not getting restarted
did u upgrade to jellybean.? use odin software to upgrade .indian firmware is DDULP8 (jellybean) which can b downloaded frm devhost or sammobile.com
ajeshmanu said:
did u upgrade to jellybean.? use odin software to upgrade .indian firmware is DDULP8 (jellybean) which can b downloaded frm devhost or sammobile.com
Click to expand...
Click to collapse
don't i need to unlock the bootloader and root the device before upgrading to jellybean???
Vivek ps said:
got a problem.. I tried this method http://forum.xda-developers.com/showthread.php?t=1660419 and when i tried to install DDLK2 firmware but failed and i installed rootkernal itself.. after am able to switch on the phone but it is continuously getting restarted.. help please..
Click to expand...
Click to collapse
Just flash any GB kernel after that and you'll be fine. Search for cocore 4.1 for GB.
---------- Post added at 06:03 PM ---------- Previous post was at 06:00 PM ----------
Vivek ps said:
don't i need to unlock the bootloader and root the device before upgrading to jellybean???
Click to expand...
Click to collapse
No you don't need to unlock the bootloader as iur device is practically made unlocked. So yeah it is unlocked already. Just flash the official 4.1.2 JB samsung firmware. No root needed.
arffrhn said:
Just flash any GB kernel after that and you'll be fine. Search for cocore 4.1 for GB.
---------- Post added at 06:03 PM ---------- Previous post was at 06:00 PM ----------
No you don't need to unlock the bootloader as iur device is practically made unlocked. So yeah it is unlocked already. Just flash the official 4.1.2 JB samsung firmware. No root needed.
Click to expand...
Click to collapse
bro.. what u mean by already unlocked??? i didn't do anything to make its bootloader unlocked before.. so you are saying that we don't need to do anything to unlock the bootloader??..ok i will flash the official 4.1.2.. but what about the custom JB.. how can i flash the custom ROM?
Vivek ps said:
bro.. what u mean by already unlocked??? i didn't do anything to make its bootloader unlocked before.. so you are saying that we don't need to do anything to unlock the bootloader??..ok i will flash the official 4.1.2.. but what about the custom JB.. how can i flash the custom ROM?
Click to expand...
Click to collapse
We do not have to unlock bootloader.
Install CoCore kernel, you will get custom recovery. And install ROM with it.
1. ROOT.
2. CoCore.
For first install of CoCore do this: Install Universal kernel flash, and some explorer with root permissions like Root explorer or ES file explorer. Download CoCore zip, unpack it and use kernel.bin.md5 file with Universal kernel flash. After that you will get CWM or TWRP (depends what CoCore version you choose). From that part you can change kernel by installing its zip from recovery.
3. Download JB custom ROM, copy to phone - and install it from recovery.
Vivek ps said:
bro.. what u mean by already unlocked??? i didn't do anything to make its bootloader unlocked before.. so you are saying that we don't need to do anything to unlock the bootloader??..ok i will flash the official 4.1.2.. but what about the custom JB.. how can i flash the custom ROM?
Click to expand...
Click to collapse
Yeah just like shut_down says above..we do not have to unlock bootloader. We can just flash the firmware. Sorry for the confusion.
This guide will help you with the whole process of upgrading and installing custom roms.
http://forum.xda-developers.com/showthread.php?t=2198341
shut_down said:
We do not have to unlock bootloader.
Install CoCore kernel, you will get custom recovery. And install ROM with it.
1. ROOT.
2. CoCore.
For first install of CoCore do this: Install Universal kernel flash, and some explorer with root permissions like Root explorer or ES file explorer. Download CoCore zip, unpack it and use kernel.bin.md5 file with Universal kernel flash. After that you will get CWM or TWRP (depends what CoCore version you choose). From that part you can change kernel by installing its zip from recovery.
3. Download JB custom ROM, copy to phone - and install it from recovery.
Click to expand...
Click to collapse
thanks for your awesome rply.. i rooted my device (JB now) and gonna install the cocoreE 6.8 kernel . u said to flash kernel.bin.md5 file with Universal kernel flash.. and after doing this and accessing the custom cwm do i need to install the cocore kernel zip from it again before installing custom ROM?
Vivek ps said:
thanks for your awesome rply.. i rooted my device (JB now) and gonna install the cocoreE 6.8 kernel . u said to flash kernel.bin.md5 file with Universal kernel flash.. and after doing this and accessing the custom cwm do i need to install the cocore kernel zip from it again before installing custom ROM?
Click to expand...
Click to collapse
You do not need to do it again, but you could. Because there are some other files in that zip - and those are not being installed with Universal kernel flash.
shut_down said:
You do not need to do it again, but you could. Because there are some other files in that zip - and those are not being installed with Universal kernel flash.
Click to expand...
Click to collapse
thanks bro.. installed a custom JB on my phone..but i have a small doubt. is it possible to make my device UNROOTED after flashing the stock JB or GB again?? ( actually i dont' need it now.. just asking ) and also will i be able to go back to the stock kernel if i flashed the STock JB?? Because my warranty is not yet over
Vivek ps said:
thanks bro.. installed a custom JB on my phone..but i have a small doubt. is it possible to make my device UNROOTED after flashing the stock JB or GB again?? ( actually i dont' need it now.. just asking ) and also will i be able to go back to the stock kernel if i flashed the STock JB?? Because my warranty is not yet over
Click to expand...
Click to collapse
When you flash stock JB firmware (not ROM) you get all stock, ready to pass warranty.
If you want to go to GB, you need to follow guide how to do that. Because you will get bootloop if you just flash GB from Sammobile.
shut_down said:
When you flash stock JB firmware (not ROM) you get all stock, ready to pass warranty.
If you want to go to GB, you need to follow guide how to do that. Because you will get bootloop if you just flash GB from Sammobile.
Click to expand...
Click to collapse
thank you so much.. but why it is stock JB "Firmware" and not ROM ????
Vivek ps said:
thank you so much.. but why it is stock JB "Firmware" and not ROM ????
Click to expand...
Click to collapse
Firmware is untouched system, for flashing with Odin. And ROM is modded files that can be installed with custom recovery. In short.

[Q] {newbie} doubt regarding flashing stock rom

i am currently on stock .254 rooted,locked bootloader,cwm recovery..
i want to flash .205 ftf...
my doubts..
1. will i be able to restore .254 via cwm after flashing..
jatt111 said:
i am currently on stock .254 rooted,locked bootloader,cwm recovery..
i want to flash .205 ftf...
my doubts..
1. will i be able to restore .254 via cwm after flashing..
Click to expand...
Click to collapse
If if you are not able to, you can always flash stock ftf file from here:
http://forum.xda-developers.com/showthread.php?t=2311964

Help! flashing via flashtool

Anybody tell me, is there a way to flash stock rom with root and deoxdexed and recovery preinstalled via flashtool.
jindal_bharat said:
Anybody tell me, is there a way to flash stock rom with root and deoxdexed and recovery preinstalled via flashtool.
Click to expand...
Click to collapse
U can flash stock rom... Then root it,install recovery and de odex it... Why u need pre rooted rom? if there is way to root it easily...
I know that but its difficult to get drivers everytime fot flashtool and its difficult to root latest firmware
Flashtool is for flashing unmodified stock firmware packages only in flashmode. You can't make modified FTF files.
Sent from my C6603
jindal_bharat said:
I know that but its difficult to get drivers everytime fot flashtool and its difficult to root latest firmware
Click to expand...
Click to collapse
just install the driver which is inside the. flashtool folder.. And it's very easy to root new firmware..... Just use this ---
http://forum.xda-developers.com/xperia-z/general/guide-how-to-root-10-5-1-0-283-t2872873
Credit -kingvortex (for easy Guide)

no signal after flashing custom rom c6902

hi guyz..
i have flashed cm 12.1 official along with modem files zip. mobile shows no sim inserted.
so i decided to go back to stock rom. even after flashing stock ftf file still no sim is detected. i came to know that i need to flash baseband from ftf but im not able to find anything related to baseband in ftf file. someone plzz help..:crying:
imran4848 said:
hi guyz..
i have flashed cm 12.1 official along with modem files zip. mobile shows no sim inserted.
so i decided to go back to stock rom. even after flashing stock ftf file still no sim is detected. i came to know that i need to flash baseband from ftf but im not able to find anything related to baseband in ftf file. someone plzz help..:crying:
Click to expand...
Click to collapse
Flash latest ftf of your revelent version then start fresh, wipe everything.!
kathanpatel1001 said:
Flash latest ftf of your revelent version then start fresh, wipe everything.!
Click to expand...
Click to collapse
tried. didnt work.
also tried software repair using pc companion.
imran4848 said:
tried. didnt work.
also tried software repair using pc companion.
Click to expand...
Click to collapse
Try to search for modem for c6902 and flash that.
gauravbhakuni90 said:
Try to search for modem for c6902 and flash that.
Click to expand...
Click to collapse
zip or ftf? already tried zip. didnt work. could not find ftf. plz provide link for ftf
imran4848 said:
zip or ftf? already tried zip. didnt work. could not find ftf. plz provide link for ftf
Click to expand...
Click to collapse
Zip file. Try searching Jaguar rom for z1 and in that thread go to download section and download c6902 modem files. Works everytime for me. And do thank the Dev in that thread.
gauravbhakuni90 said:
Zip file. Try searching Jaguar rom for z1 and in that thread go to download section and download c6902 modem files. Works everytime for me. And do thank the Dev in that thread.
Click to expand...
Click to collapse
tried sir...no change. I'm going nuts
imran4848 said:
tried sir...no change. I'm going nuts
Click to expand...
Click to collapse
Tried it from the same source I cited??
Which ROM are you on??
Edit - do you have ftf and flashtool installed??
gauravbhakuni90 said:
Tried it from the same source I cited??
Which ROM are you on??
Edit - do you have ftf and flashtool installed??
Click to expand...
Click to collapse
At present I'm on sony's latest firmware 5.1.1 . I flashed a pre rooted firmware downloaded form a xda thread(.236 build) I downloaded modem zip from the same source u mentioned sir and flashed in recovery. but there is no change:crying: I have flashtool installed in my pc and i even downloaded latest ftf from flashtool using xperiafirm and flashed it. but didnt solve problem
imran4848 said:
At present I'm on sony's latest firmware 5.1.1 . I flashed a pre rooted firmware downloaded form a xda thread(.236 build) I downloaded modem zip from the same source u mentioned sir and flashed in recovery. but there is no change:crying: I have flashtool installed in my pc and i even downloaded latest ftf from flashtool using xperiafirm and flashed it. but didnt solve problem
Click to expand...
Click to collapse
Do you have stock ftf file and flashtool installed ??
Bootloader unlocked ??
And please don't call me sir , I am no knight .
gauravbhakuni90 said:
Do you have stock ftf file and flashtool installed ??
Bootloader unlocked ??
And please don't call me sir , I am no knight .
Click to expand...
Click to collapse
I have bootloader unlocked. I have flashtool installed in my pc and using flashtool I flashed stock ftf file.
I didnt get you regarding ftf and flashtool installed? In my pc or Z1??
imran4848 said:
I have bootloader unlocked. I have flashtool installed in my pc and using flashtool I flashed stock ftf file.
I didnt get you regarding ftf and flashtool installed? In my pc or Z1??
Click to expand...
Click to collapse
But you said you flashed pre rooted firmware from recovery.
Clean flash stock ftf file from flashtool in flash mode then report.
gauravbhakuni90 said:
But you said you flashed pre rooted firmware from recovery.
Clean flash stock ftf file from flashtool in flash mode then report.
Click to expand...
Click to collapse
I have already tried that. At present Im on pre rooted firmware
imran4848 said:
I have already tried that. At present Im on pre rooted firmware
Click to expand...
Click to collapse
What options are you choosing to flash in flashtool. Select wipe all and don't exclude anything in flashtool. Try that.
gauravbhakuni90 said:
What options are you choosing to flash in flashtool. Select wipe all and don't exclude anything in flashtool. Try that.
Click to expand...
Click to collapse
Flashed in that manner only. Wiping all and not excluding anything.
I have a doubt. There is nothing related to 'Baseband' in contents list or in exclude?
I read somewhere that i need to flash baseband from ftf in order to fix. Is it true?
imran4848 said:
Flashed in that manner only. Wiping all and not excluding anything.
I have a doubt. There is nothing related to 'Baseband' in contents list or in exclude?
I read somewhere that i need to flash baseband from ftf in order to fix. Is it true?
Click to expand...
Click to collapse
When you are flashing the whole ftf. You are flashing the baseband too.
gauravbhakuni90 said:
When you are flashing the whole ftf. You are flashing the baseband too.
Click to expand...
Click to collapse
what am I supposed to do now??
I tried flashing this file http://forum.xda-developers.com/attachment.php?attachmentid=2564631&d=1391783645
but didnt fix. I am losing my imei after flashing this
imran4848 said:
what am I supposed to do now??
I tried flashing this file http://forum.xda-developers.com/attachment.php?attachmentid=2564631&d=1391783645
but didnt fix. I am losing my imei after flashing this
Click to expand...
Click to collapse
I don't know. If I were you I would clean flash the rom from flashtool not from recovery.
gauravbhakuni90 said:
I don't know. If I were you I would clean flash the rom from flashtool not from recovery.
Click to expand...
Click to collapse
I did clean flash rom from flashtool . but it didnt fix
Bro all you need is a sony flashtool, sony pc companion, your z1, and some patience.
first of all make a ftf of original firmware for you device this might help second step flash the ftf which you made using flashtool (remember this ftf is the orignal copy of stock firmware).
after flash process finished just simply turn on your device and this might get back your modem's and signal and yes your imei number as how it should be.

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