Downgrading to a rootable firmware - Sony Xperia X Compact Questions & Answers

I know with the Z3 i was able to flash an older firmware without unlocking the bootloader or doing any changes in order to be on a easily rootable version. Is it the same way with the X Compact?

There are some DirtyCow-tools to root phones, but I don't know if root is persistent or if it even works on the XCs ROMs. You can just download the earliest ROM you can find and try it youself. There are some ressources around, although not in this forum.
So yes, you should be able to downgrade and root, but so far nobody has posted any first person reports wether it works with the X Compact.

Thanks. I installed the firmware listed by Androplus in his advanced stock kernel 34.1.A.1.198 and worked from there. I guess in time there will be a way to root without unlocking bootloader but for now i'm happy. Now just waiting for a way to mirror the screen with the unlocked bootloader.

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[Q] Where to go from here?

Hi,
I have a brand new Sony Ericsson UK Xperia Play on Android 2.3.3, Build: 3.0.1.A.0.145. (Latest T-Mobile OTA Update).
I want to:
Root my phone and Try out Cyanogeon Mod
Am I correct in thinking that to root my phone I need to unlock my bootloader or do i need to downgrade somehow?
Thanks,
XperiaPlayer
If your device is sim locked, you cannot unlock the bootloader, without an unlock bootloader, you must downgrade in order to root, check out the stickies in the android development forum
Sent from my R800i using Tapatalk
Right,
So to get it rooted it would be better to downgrade?
Regarding the sim-unlock thing, when I put the IMEI into sony's website it gave me an unlock code? (However Im going to try an orange sim in it)
Also to downgrade is it simple (As in through SEUS) or would one be better off unlocking the bootloader and flashing a rooted kernel?
Thanks,
XperiaPlayer
XperiaPlayer said:
Right,
So to get it rooted it would be better to downgrade?
Regarding the sim-unlock thing, when I put the IMEI into sony's website it gave me an unlock code? (However Im going to try an orange sim in it)
Also to downgrade is it simple (As in through SEUS) or would one be better off unlocking the bootloader and flashing a rooted kernel?
Thanks,
XperiaPlayer
Click to expand...
Click to collapse
To root you do not need an unlocked bootloader, but for you to install CM7 you do need an unlocked bootloader.
If you unlock your bootloader you will not get updates from SE (SEUS, OTA or Pc Companion if you try to use any of them after unlocking your bootloader it will brick your phone) you will have to come to this fourm for the updates. Plus it will void your phones warranty but you can now relock the bootloader thanks to blagus so i suppose that doesn't matter really.
You can try unlocking your bootloader (worth a try if you cannot get another sim? it will either fail or succeed), follow the guide here. Or follow the steps on the SE website. If it works you do not need to downgrade since you can install any of the rooted .img's or custom kernels e.t.c which are on 2.3.3 and are rooted.
If you cannot unlock your bootloader you can still root but you will have to downgrade to 2.3.2 using flashtools.
You can only root (with a locked bootloader) on on 2.3.2 since gingerbreak does not work on 2.3.3 (its been patched). So if you want root on 2.3.3 you will have to flash 2.3.2 then root then do the ota update. Follow the guide here to root with a locked bootloader.
Using flashtools to downgrade is the exact same as using SEUS really (both need the phone off and to be connected in flash mode).

Got root on latest L 5.1.1 Z2D6503 with this method

Hii
I just got my Z2 rooted with this method
I just followed the steps
http://forum.xda-developers.com/xperia-z2/general/guide-how-to-root-xperia-z2-android-5-1-t3253878
Just one question
My bootloader sayz unlock not allowed...
Can I now flash TWRP or not?
Or is it just that I can not flash kernels??
I dont understand what is diffrent with bootloader locked and unlocked
Mine as I have read is locked forever so I dont want to brick my device or something...
Some advice about such bootloaders and what I can NOT DO would help me to understand
Thanks in advance
EDIT 01:
I just have followed the link in that post where I have rooted the phone
And just got TWRP installed as my recovery
So just to let you guys know evan dual recovery works fine with L5.1.1.
Just to say I have LockedBootloader
So guys please advice me for further
What restrictions do I have with the LB in diffrence to Unlocked BL
Can I do exact the same flashing of things like they on unlocked BL or not?
What should I be carefull about
Please guy give some info
1- With locked bootloader
you can only flash sony stock based roms (you can flash miui rom as there is a version with sony stock base).
you cannot flash cyanogenmod or custom kernels and any other rom.not based on stock sony.
2- with Unlocked bootloader
You can flash any custom rom or kernel for xperia z2 including cyanogenmod.
But you will LOOSE your DRM keys if you unlock your bootloader which will degrade the camera quality and xreality engine...
Pozdrav druže
You cant accidentally unlock your BL and if it says it cant be unlocked Im afraid it is locked forever. There is no any way to unlock it AFAIK. If you have root, which it looks like you do, you can install TWRP by downloading an app TWRP manager from the plat store, give it root permission and in Install section find your variant of Z2 and let it doo its thing. It will automatically flash recovery.img and reboot and thats it.
Now you can flash all [UB] as unlocked bootloader marked roms, but no custom kernels and AOSP ROMs.
In my experience, if you try to flash something for LB it will just produce an error and you can reboot your device normally without any changes.
Thanks guys !!!
No its all clear to me
working on D6503 5.1.1, tnx!
arnoudasmit said:
working on D6503 5.1.1, tnx!
Click to expand...
Click to collapse
Worked for me also but mine is also locked bootloader
It's work really good on my Xperia D6503 (23.4.A.1.264) with locked bootloader

G900V from 4.4.4 to most current version with root?

Looked thru the other threads, and didnt see anything that pertained directly perhaps someone can point me in the right direction.
Have my stock S5 from verizon, on 4.4.4 NK2 firmware. Looking to update to whatever is the most current stock firmware with root. I'm coming to this from years of rooting Sprint devices, this is my first Verizon and I've been putting it off forever. Been getting the nag screen everyday now for a software update and I figured it was the time to update this and get myself root.
Thanks in advance for any help in where to look. Please forgive me in advance if this is a duplicate, I searched...I really did, but since its all new to me I wanted to ask.
Looks like the process is to flash 4.4.2, root, check if bootloader can be unlocked, and then proceed 2 different ways if it can be dev bootloader unlocked. If it can, unlock bootloader, flash twrp, and then flash whatever rom you want. If you can't unlock the bootloader, folow the guides to upgrade keeping root with safestrap and use roms that are TW for locked bootloaders. Someone correct me if I'm wrong. I just got a 4.4.4 g900v myself in a trade and I'm figuring out how to proceed as well.
Ok, slight difference. You can root & check the bootloader from 4.4.4...
Root here (Using NCG stock kernel...
http://forum.xda-developers.com/ver.../safely-upgrade-root-4-4-4-nha-volte-t2879348
If you're having trouble finding the NI2 kernel like I did it's here...
http://forum.xda-developers.com/showthread.php?t=2784880
Then use the method bootloader unlock from method 3 here...
http://forum.xda-developers.com/ver...t/rd-unlocking-galaxys-s5-bootloader-t3337909
If you can unlock your bootloader (I could), then flash the bootloader of choice from that link above to correspond to the rom you want. I'll be trying out Phoenix with pd4 (installed from above link) from here...
http://forum.xda-developers.com/verizon-galaxy-s5/development/port-phoenix-rom-v12-0-t3400292

Looking for a thread?

I am a new Axon 7 user, and it has to be one of the best phones that I have owned. I ran across a thread yesterday that was a guide on root and to unlock the BL. I cannot seem to find it. All of the ones on here seem to be outdated and I do not want to brick my new phone if at all possible. I have the USA version U and I am on the most recent update B29. The thread I ran across came with the image to flash back to B20 and root and unlock the BL and then came with the B27, B29 updates to flash in TWRP to get back up to date with root and unlocked BL. All I am trying to do is Root and unlock the BL on my phone? Tenars thread only has the B27 file and I didn't know if I flashed that aboot it would brick my phone or not. Anyways if someone could please let me know that thread or point me to a thread that I can root and unlock the BL on the USA phone with latest firmware B29.
Thanks,
Leroy

Security updates after Unroot/Locking Bootloader

Hi All,
I have an Xperia z5 E6633 which I have previously rooted and in doing so unlocked the bootloader.
I am trying to get it back to stock as much as possible and hopefully reinstate the Android Security Updates, does anyone have any experience in this?
So far I have flashed a stock firmware and locked the bootloader using Flashtool, Flashed a what I believe to be stock kernel but am still unable to get OTA Security updates.
I think I may have installed a kernel for E6683 as well as the device is listed as such on the Xperia Companion and on Flashtool and believe flashing the stock kernel will fix this, though I dont seem to be able to find a stock kernel for E6633 on the internet.
Does anyone have the stock firmware/kernal currently and could possible provide these for me to flash?
Many Thanks.

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