[Q] - Xperia Z2 Q&A, Help & Troubleshooting

Hello All
i recently rooted my Z2 by downgrade method, thinking about moving to CM12 or PA as soon a stable build is released but have some doubts in that area.
1- if i make a nadroid backup through the dual recovery i have now and later after unlocking the bootloader and flashing a differnet recovery and ROM if i restore the old backup will my bootloader be locked automatically?
2- can i use my dual recovery to install a CM ROM( after a clean wipe of current system of course)?
3- i have read about people having problems after installing recovery after flashing a CM ROM, and i havnt really found a coherent answer for that in all the forums that i follow. can anyone give a proper method of how to flash a recovery after the ROM so that i can restore my backup just in case?
4- if my nandroid backup does not relock my bootloader than does restoring my TA backup relocks it?
5- if after flashing a CM or AOSP Rom i try flashing a stock based ROM like existenz or MoonWalker can i restore my TA Backup on dat? will that in anyway affect the root capability of my device? will this relock the bootloader?
Sorry for a list of questions. have only worked with locked bootloader till now and not really handy with sony devices. have only been few months since i got it.

Can someone please remove this thread, by mistake forgot to give a name for this, creating a new thread for same.

Related

[Q] Stock ROM backup

Before I install any of the custom ROM, I want to backup my existing stock ROM. But most of the applications which work for other cells like xrecovery and rom manager do not seem to work for Xperia Mini ST15i. So how do I back up my existing ROM before I start trying other ROMs.
I have read the the thread freeXperia and I am aware of the bugs in CM7.1.0 .
Can any one help me with this problem .
My cell is already rooted and is running on the DoomLord Kernel.
Thanks,
just an idea, not sure if this can be considered as a ROM backup i've just bought my first android and still have a lot to learn about it: i'm sure someone with more knowledge will come and resolve your doubt properly but in the meantime think about this:
- flash boot.img from CM7 which has recovery
- make a backup of your settings with recovery
- install CM7 and see if you like it
- to return to stock rom flash kernel.sin and system.sin which are inside the ftf file from your stock FW, and flash them; again, flash boot.img from CM7 (has recovery, remember) then do a restore of your settings. Last, flash doomlord kernel and you should have your stock rom back the way you left it before installing CM7. (not sure if would work if just system.sin is flashed without kernel.sin to avoid the reflashing of CM7's boot.img ) (i suppose it would be rooted again since that was the status when you made the backup).
that's it, some one correct me please if i'm wrong...
hey man, I m brazilian an than cold b that i dont understand your question,
but goes there, you need know 1 thing, after you'd maked a backup with xrecovery ,
could happen that not make work in to recovery, but the backup is right and working, you need make it, 1 recovery original of mobile ,2 instal the custom zip rom, 3 after all, go to xrevovery and make the recovery, from your backup, ha dont forget that reset full wipe
@rael2000ix

How to install and use Nandroid backup.. and questions

1. How to install nandroid backup?
2. Can i install it in my phone xperia min st15i rooted ics .587 (locked BL)?
3. where can i download the latest official/working nandroid backup for my xperia min st15i?
4. If Im installing custom ROM's and failed, and having boot loop problems.. Can i use nandroid backup to restore where I saved? that means from all files settings? will be back to what state you saved?
5. And If I successfuly installed and boot new ROM, then after many restart/reboot or after tomorrow, can I still use nandroid backup to restore to its previes ROM/OS? without having any problem? Is that how nandroid backup work?
Please answer THANKS!
1.)Nandroid backup is Total Disk Image(think dd command) of the partitions of a phone .This may or may not include ,/system,/data,/cache,/sd-ext,android-secure,kernel and recovery depending on the recovery and phone ...
2-3.)Nandroid Backup is created by the user and should not be shared amongst each other for security and privacy reasons ...So basically they are hard to find and probably it's not a good idea to flash one to your phone...
4-5.)Basically you create the Nandroid backup of your phone from the recovery ...Then you can install a custom ROM ...If you have a problem then you can restore the original backup
So there is no "install" as such of a nandroid backup ....It's Backup from your phone via recovery and restore to your phone via recovery ....
A point to ponder is that the recovery for the Locked BL lies in /system ...If the Custom ROM doesnt flash the recovery to /system properly then in case of a boot loop ,you have to go for Downgrade-Upgrade Root-Recovery-Backup cycle ...
This is relevant to you...
Fastboot, Custom ROMS & ClockworkMod Recovery:
A custom ROM is a fully standalone version of the OS, including the kernel (which makes everything run), apps, services, etc - everything you need to operate the device, except it's customized by someone in some way.
So what does the "customized" part mean? Since Android is open source, developers are free to take stock ROMs, modify them, strip them of garbage, optimize them, add things, and pretty much do whatever their imagination and skills allow.
Click to expand...
Click to collapse
- Custom ROMS for Android Explained And Why You Want Them
In the Development Section you will find a variety of Custom ROMs, some require you to have an an Un-Locked Bootloader and some don't, it's usually stated in the thread title if it's required or not but modding your Phone with an unlocked Bootloader is much simpler. Most ROMs usually come in .zip format which require ClockworkMod (CWM) to install them.
You can find a great Guide HERE that will show you how to use Fastboot which is the method used for installing Kernels required by certain Custom ROMS.
Got a Mac? - [GUIDE] Set up ADB and Fastboot on a Mac easily (With Screenshots!)
ClockworkMod – also known as Clockwork and CWM – is a custom recovery for Android phones and tablets that allows you to perform several advanced recovery, restoration, installation and maintenance operations on your Android device
Click to expand...
Click to collapse
- What Is ClockworkMod Recovery And How To Use It On Android
To use CWM on an XPERIA then it's recommended to unlock your Bootloader because then you can simply flash Custom Kernels that come with CWM pre-installed, it's also safer imo because it's separate from the system, but if you haven't unlocked your Bootloader for whatever reason then you're going to have to use [APP]/[RECOVERY]x-Parts [CWM Installer] [Version 7.0] 29/6/12 which is installed to the Phone's system, although it's less effective should you accidentally wipe your system while trying to flash a new ROM as you won't be able to access it.
Click to expand...
Click to collapse
...

Newbie to flashing, rooting, etc - several basic questions

Hello,
So lately I've been have some troubles with my phone and I decided to try and flash with a new ROM and see if that helps.
I've been reading on the forums some of the guides, FAQ, and read about some ROMs but I'm still a bit unsure of the entire process.
Currently using GT-I9300, 4.1.2 OS, stock.
Backup:
1. Do I need to flash a custom recovery tool (CWM/TWRG) to create an image backup? Should I just root with Odin and then use Titanium?
2. Do these backup my EFS partition or should I back that up separately?
3. Do I need to root my phone with Odin to be able to flash custom recovery tool/backup my EFS?
ROM/Kernel flashing:
1. Since I'm a newbie to this and there seems to be a ton of ROM options, could you recommend on a stable CM based 4.3 ROM I could use?
2. I haven't seen a stock 4.4.4 for GT-I9300, is it stable to use?
I'm sorry If I've asked something thousands have asked before, I couldn't find a clear answer in a decent amount of time.
Thanks for the help!
menia3d said:
Hello,
So lately I've been have some troubles with my phone and I decided to try and flash with a new ROM and see if that helps.
I've been reading on the forums some of the guides, FAQ, and read about some ROMs but I'm still a bit unsure of the entire process.
Currently using GT-I9300, 4.1.2 OS, stock.
Backup:
1. Do I need to flash a custom recovery tool (CWM/TWRG) to create an image backup? Should I just root with Odin and then use Titanium?
2. Do these backup my EFS partition or should I back that up separately?
3. Do I need to root my phone with Odin to be able to flash custom recovery tool/backup my EFS?
ROM/Kernel flashing:
1. Since I'm a newbie to this and there seems to be a ton of ROM options, could you recommend on a stable CM based 4.3 ROM I could use?
2. I haven't seen a stock 4.4.4 for GT-I9300, is it stable to use?
I'm sorry If I've asked something thousands have asked before, I couldn't find a clear answer in a decent amount of time.
Thanks for the help!
Click to expand...
Click to collapse
Backup
(1) Titanium only backs up apps and data it does not do a full (Nandroid backup Google it) Root with cf autoroot http://forum.xda-developers.com/showthread.php?t=1980683 and then flash a custom recovery (choice is yours cwm,Twrp,PhilZ flash with Odin)
(2) Yes some custom recoveries back up efs PhilZ does I think twrp does not sure about cwm ( I don't think it does maybe wrong on that) nandroid backups don't backup your efs do this separately
(3) Technically you don't need root to flash a recovery but if you want to backup anything in recovery then you need to root.You will only need to root your phone once if you are intending to flash custom roms (so that you can backup) because root is included in custom roms.
IMPORTANT! You must backup your efs once you have flashed a custom recovery especially coming from 4.1.2. and keep multiple copies on phone and pc!
Rom/Kernel flashing
(1) We cannot recommend roms it is against XDA rules
(2) Their is no stock 4.4.4 roms last release was 4.3 anything else is a custom/port of 4.4
Thanks for your help, that cleared up a few things.
I ended up using samsung galaxy S3 toolkit (which is amazing btw) to root & load insecure boot image, flash custom recovery img and backup everything on my phone.
I'm now ready to flash my first custom ROM
Again, thanks a bunch

[help needed]Restore Nandroid Backup after Bootloader unlock?

Hey,
I would like to unlock my bootloader. I am aware that this amke me loses all my data
I was ondering whether it is possible to perform a Nandroid backup before unlocking the bootloader and then restore the data after unlock bootloader .
I have made so many modifications with Xposed Installer, soI dont want to loose all my "progress".
I was thinking of making an update.zip with all my apps and their data but this is too much of a hassel to do.
Xperia Z Ultra running 5.0.2 prerooted by myself with TWRP and Philz Recovery
Thanks in Advance
And another thing I have a dual rcovery Philz and TWRP is it possible to remove one of them because when i softbrick my phone i will always boot into philz even if i have twrp as my default recovery
thanks again
Grari135 said:
Hey,
I would like to unlock my bootloader. I am aware that this amke me loses all my data
I was ondering whether it is possible to perform a Nandroid backup before unlocking the bootloader and then restore the data after unlock bootloader .
I have made so many modifications with Xposed Installer, soI dont want to loose all my "progress".
I was thinking of making an update.zip with all my apps and their data but this is too much of a hassel to do.
Xperia Z Ultra running 5.0.2 prerooted by myself with TWRP and Philz Recovery
Thanks in Advance
And another thing I have a dual rcovery Philz and TWRP is it possible to remove one of them because when i softbrick my phone i will always boot into philz even if i have twrp as my default recovery
thanks again
Click to expand...
Click to collapse
I am fairly certain that restoring a nandroid made prior to unlocking relocked the bootloader resulting in a soft brick until I could unlock it again.
Unless its stock. Wait no it won't work. Just start over.

How do I backup and restore current stock rom without rooting?

Hello guys, I am new in flashing world, so I wanted to know that in the process of rooting what if my phone will get bricked, is there any way to backup and restore current ZUI stock rom if my phone get brick? Although I think it isn't possible to install stock rom because the bootloader will be locked,so I just need a simple way to backup current stock rom and install it in the event of brick
deathcruizer said:
Hello guys, I am new in flashing world, so I wanted to know that in the process of rooting what if my phone will get bricked, is there any way to backup and restore current ZUI stock rom if my phone get brick? Although I think it isn't possible to install stock rom because the bootloader will be locked,so I just need a simple way to backup current stock rom and install it in the event of brick
Click to expand...
Click to collapse
Whole stock rom can be backup in custom recovery or via adb after getting root. Flashing custom recovery needs unlocked bootloader.

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