[Q] CM12 Revert to Sony Stock ROM - Xperia Z2 Tablet Q&A, Help & Troubleshooting

Hi Guys
We have a Sony Xperia Tablet Z2 (SGP521), currently installed with a nightly build of CyanogenMod12 Lollipop ROM.
Some functionality is not working well, so we would like to revert back to Sony Stock ROM, can someone guide us on the steps required?
We understand that the steps is similar to flashing the ROM into the device, but would be great if someone can confirm the steps, including where we might find stock Sony ROM. We've looked through some of the forum posts but some are quite old posts so just wondering if anything might have changed.
Thanks in advance for any help!

Will this work?
[Prerooted][flashable]zip[23.1.A.1.28][SGP521][Customized NCB]&[VMo RU-UA-KZ]
http://forum.xda-developers.com/xpe...ooted-zipcustomized-ncb-t3100783#post60542294

Just do a full wipe and flash the prerooted zip linked above in recovery.

Related

[Q] cyanogenmod 7.1.0.2 & cyanogenmod 7.2

Hello to xda-forum's community!
I've bought new unbranded SE Xperia Mini Pro and it's my first Android device. I'm new to this forum and Android phones, but I'm aware of possibilities custom mods provides. I want to change stock Android to cyanogenmod 7.1.0.2 from official cyangoenmod site. But before I'll try all this I have couple questions for you:
1) Should I update my phone's official firmware before unlocking bootloader and flashing cyanogenmod 7.1.0.2?
2) Is there any option to make a full copy of my official Android before trying to flsh new one? I heard about NANDroid backup available in bootloader, but will it restore Sony Ericsson's Android if anything will go wrong?
3)What is the difference between mods and kernels? I assume I will flash new rom (cyanogenmod 7.1.0.2), but what will be the kernel?
4) How can I prevent bootloop problem during flashing cyanogenmod 7.1.0.2? From what I've read, it's a pretty big problem and nobody presented a full solution, in fact there wasn't any help at all. I searched a bit on other Sony Ericsson Xperia's forums, and this problem is not exclusive for Xperia Mini Pro, but appears in i.e. Xperia Neo, Xperia Mini etc. People claim that removing AntHalService.apk from zip archive (update-cm-7.1.0.2-XperiaMiniPro-SK17i-signed.zip/system/app) made flashing new stable cyanogenmod possible. But I don't know what to tkink about removing one of system apps. I have no idea what is it doing and if it's safe. What do you think?
4) Is everything working in this cyanogenmod 7.1.0.2 release?
5) What's the difference between cyanogenmod 7.1.0.2 from official site and the cyanogenmod 7.2 made by freexperia team? It's completely new cyanogen or maybe they're upgrading version 7.1.0.2? Or maybe they're making their own version of cyanogenmod and that's why it's still in development and some things arent fully working now?
I really hope someone will help me. Have a nice day
1) Yes you should update to the latest firmware .62 because the latest FXP106 requires the latest baseband to work properly.
2) Yes, once you have access to CWM, you can backup your rom.
3) I don't understand what you mean by "mod", you mean like a visual mod, like a .zip file you flash in CWM? A kernel is "a bridge between applications and the actual data processing done at the hardware level". People flash kernel for extra function, like CWM, Root, and Overclocking.
4) I never had any bootloop with custom ROMs, you just need to follow the instructions step by step and everything should work perfect.
4bis) Yes the phone is very functional with Cyanogenmod. Screen, 3G, Camera everything seems to works good, at least for me.
5) Freexperia Team makes both versions to my knowledge. 7.2 is an RC version, it has the latest fixes, changes.
Hope I answered your questions. If I were you, since you are new to Android phones, I would not try to switch to Cyanogenmod for the moment. Get used to your phone before doing anything serious (Cyanogenmod requires an unlocked bootloader, meaning you lose your warranty). Read information, threads, on your phone and Android to learn how things work.
I think I'll take your advice and won't try serious things right now. But I have couple more questions, it will be great if you'll answer
1) I see FXP106 requires the latest firmware, but there are some things not working properly in this version (i.e. radio), propobably because it's a RC. So are there things not working in latest stable cyanogenmod 7.1.0.2 from wiki.cyanogenmod.com/wiki/Sony_Ericsson_Xperia_Mini_Pro:_Full_Update_Guide? I prefer older release where everything is running than new but buggy.
2) Should I update my firmware to the newest one in order to install cyanogenmod from the above link? I still hesitate to do this because there is no way (at least for now) to root latest baseband .64 and rooting seems to be less complicated operation than flashing new rom.
3) In my previous post I asked about the difference between rom and kernel.
4) There's something I don't understand in the guide I linked. At first I'm unlocking the bootloader. Can I make a full backup of my firmware just after this point? Or should I update the kernel (via step with boot.img) and then make a backup?
5) Is it possible to boot firmware after step with updating the kernel? I mean, can I boot the phone after this step?
6) If I follow the above guide, at which point am I rooting the phone?
I'll try my best to answer your questions.
1) Honestly I didn't try Cyanogenmod much time but the latest FXP ROMs worked great for me, no major bugs and pretty stable! I would prefer the latest release if I were you.
2) Anyways if you want Cyanogenmod, you NEED an unlocked bootloader. That will make the ROOT process easy. First you ROOT your device to get access to recovery with a new kernel then you will flash the ROM. And yes you should upgrade to the latest version for Cyanogenmod.
3) ROM = it's the complete system, think of it like installing the OS on your computer. KERNEL = the drivers that allow software and hardware to interact.
4) Once you unlock you bootloader, you will be able to flash a custom kernel that will give you access to recovery (CWM) and there you will be able to perform a backup.
5) Once you flash a new kernel, it depends. If it's a kernel for stock ROM yes you can boot right away. But Cyanogenmod used a different kernel.
6) If you follow the guide, you are rooting your phone at the moment you flash a kernel that gives you root access.
polik1 said:
Hello to xda-forum's community!
I've bought new unbranded SE Xperia Mini Pro and it's my first Android device. I'm new to this forum and Android phones, but I'm aware of possibilities custom mods provides. I want to change stock Android to cyanogenmod 7.1.0.2 from official cyangoenmod site. But before I'll try all this I have couple questions for you:
1) Should I update my phone's official firmware before unlocking bootloader and flashing cyanogenmod 7.1.0.2?
2) Is there any option to make a full copy of my official Android before trying to flsh new one? I heard about NANDroid backup available in bootloader, but will it restore Sony Ericsson's Android if anything will go wrong?
3)What is the difference between mods and kernels? I assume I will flash new rom (cyanogenmod 7.1.0.2), but what will be the kernel?
4) How can I prevent bootloop problem during flashing cyanogenmod 7.1.0.2? From what I've read, it's a pretty big problem and nobody presented a full solution, in fact there wasn't any help at all. I searched a bit on other Sony Ericsson Xperia's forums, and this problem is not exclusive for Xperia Mini Pro, but appears in i.e. Xperia Neo, Xperia Mini etc. People claim that removing AntHalService.apk from zip archive (update-cm-7.1.0.2-XperiaMiniPro-SK17i-signed.zip/system/app) made flashing new stable cyanogenmod possible. But I don't know what to tkink about removing one of system apps. I have no idea what is it doing and if it's safe. What do you think?
4) Is everything working in this cyanogenmod 7.1.0.2 release?
5) What's the difference between cyanogenmod 7.1.0.2 from official site and the cyanogenmod 7.2 made by freexperia team? It's completely new cyanogen or maybe they're upgrading version 7.1.0.2? Or maybe they're making their own version of cyanogenmod and that's why it's still in development and some things arent fully working now?
I really hope someone will help me. Have a nice day
Click to expand...
Click to collapse
Hope you enjoy your Xperia Mini Pro! I'm loving mine
1)Yes, you should update your phone to the lastest firmware. It worked for me when I did it
2)Yes there is, after you unlocked the bootloader and flashed a kernel on, in the ClockWorkRecovery Mod, there is a "backup or restore" option to backup the Xperia Mini Pro stock ROM
3)ROMs is the UI your phone will be using for example HTC Sense is HTC Sense UI and Kernel is the driver for yours phone software and hardware to interact and process
4)I tried to flash CyanogenMod 7.1.0.2 and I got stuck on the bootloading screen, I did many methods and such and I couldn't stop the looping. Plus the Official CyanogenMod team has given a statement or a bug fix to fix it. Though CyanogenMod 7.1.0.1 works but has many bugs to fix out, the biggest one is that Vibration doesn't work.
5)The FreeXperia teams works more on the Mini phones then the Official CyanogenMod team because the CyanogenMod team, usually ports the ROM from another phone and then does all the bugs fixes. While the FreeXperia Team, works fully with the Mini and Mini Pro phones, building a ROM around the phone instead of a port. (Thats what I heard, not fully sure)
If your new to the Android community, do not root or flash a ROM without getting to know how it all works. Plus it will void your warranty. Hope all this helps

Installing cm 10/10.1 from stock, help

so i just replaced my old Xperia X10 with my new SGS3 and i wanted to flash CyanogenMod on it, because i have used it on my X10before , on the SGS3 im running 4.1.2 and i have found a rooting tutorial but i couldnt find any specific information on whether i could flash it straight from that version of android, or if i have to downgrade to ICS first to make it work, because i have read in the CM rom thread that my Wifi may not be working so im worried about that. also what do i need to do before installing it, do i need to wipe data/cache/dalvik cache like on my x10 or not? thank you in advance for your answer
[email protected] said:
so i just replaced my old Xperia X10 with my new SGS3 and i wanted to flash CyanogenMod on it, because i have used it on my X10before , on the SGS3 im running 4.1.2 and i have found a rooting tutorial but i couldnt find any specific information on whether i could flash it straight from that version of android, or if i have to downgrade to ICS first to make it work, because i have read in the CM rom thread that my Wifi may not be working so im worried about that. also what do i need to do before installing it, do i need to wipe data/cache/dalvik cache like on my x10 or not? thank you in advance for your answer
Click to expand...
Click to collapse
CM10 discussion post is alive and well .
You are that worried then don't flash CM pick another less worrying rom .
Im just asking if i can install CM10 directly from rooted stock 4.1.2 or if i need to downgrade first
[email protected] said:
Im just asking if i can install CM10 directly from rooted stock 4.1.2 or if i need to downgrade first
Click to expand...
Click to collapse
Yes you can
But with a 4.1.2, you have now a new bootlpader which include a new protection. So you will have a red exclamation mark on boot.
It doesn't matter, all is fine and everything will be working, it's just related to warranty service.
Check also forum, you can downgrade bootloader to avoid exclamation mark.

[Q] How do I remove Cyanogenmod 11.0 & install this custom ROM

Hi there,
I'm sorry if this has been covered before in another thread but after searching with limited success I have been unable to find a detailed answer, perhaps I'm just a little bit dim & have missed something however.
QUESTION:
After installing CyanogenMod 11.0 [KitKat][4.4.2] by "Gava97" I have found that it is simply not for me. I would very much like to install Destro316's "Proformance" ROM [4.0.4] http://forum.xda-developers.com/xpe...m-4-0-4-proformance-rom-long-battery-t2547481 as it seems much more stable having been based on a stock Sony ROM.
Do I just flash the new ROM over the previous one? Do I return to a stock setup & redo the rooting process? If so, how?
Being extremely new at this android thing, I'm a little stumped as to how to proceed. All instructions seem too vague for me to confidently follow without bricking something. As I said, it may just be that I'm a missing something.
Phone was originally running [2.3.7] when I bought it, though I soon flashed to stock Sony ICS [4.0.4] Firmware version 6.1.1.B.1.100.
I unlocked my bootloader, rooted & installed Clockwordmod Recovery via this tutorial: www(dot)youtube(dot)com/watch?v=V232-3tZddE
I would be very grateful if anyone could fill me in with a step-by-step guide on removing all traces of CyanogenMod & installing this new ROM. Any suggestions for different ROM's are welcome as well, of course.
-----
Bootloader unlocked: Yes
Root: Yes
Clockworkmod Recovery: Yes
Kernel version: Transcendence v 1.1.6
Flashtool Version: 0.9.14.0
PC: Windows 7
-----
I really am sorry if I missed something in my search, I'm very new at this.
I appreciate anyone taking the time to read this & help me out.
Cheers,
Miles
OnslaughtNZ said:
Hi there,
I'm sorry if this has been covered before in another thread but after searching with limited success I have been unable to find a detailed answer, perhaps I'm just a little bit dim & have missed something however.
QUESTION:
After installing CyanogenMod 11.0 [KitKat][4.4.2] by "Gava97" I have found that it is simply not for me. I would very much like to install Destro316's "Proformance" ROM [4.0.4] http://forum.xda-developers.com/xpe...m-4-0-4-proformance-rom-long-battery-t2547481 as it seems much more stable having been based on a stock Sony ROM.
...
Click to expand...
Click to collapse
Just follow the instructions on the ROM threat, this is erasing your CM 11, then install your ROM through CWM.
Good luck!
U could Just follow the instructions that included at the ROM u want, that will eras your CM 11, then install the ROM U want through CWM.
Clean Install is required
Woops
Hi everyone!
Sorry for the late update.
So I attempted to follow the instructions outlined in the new rom I was attempting to install and it did nothing. Absolutely nothing. Phone continued to boot into Cyanogenmod 11 kitkat as if nothing had happened.
Now obviously I messed something up, but I needed a properly functioning phone for work asap so I bought an Xperia Z1 Compact just to be done with it. Over the hassle.
However it's been bothering me that I still have a basically pristine Xperia U minus it's software tantrum.
So, how do I go about restoring this phone to the factory Gingerbread and removing Cyanogenmod?
Baby steps please.
OnslaughtNZ said:
Hi everyone!
Sorry for the late update.
So I attempted to follow the instructions outlined in the new rom I was attempting to install and it did nothing. Absolutely nothing. Phone continued to boot into Cyanogenmod 11 kitkat as if nothing had happened.
Now obviously I messed something up, but I needed a properly functioning phone for work asap so I bought an Xperia Z1 Compact just to be done with it. Over the hassle.
However it's been bothering me that I still have a basically pristine Xperia U minus it's software tantrum.
So, how do I go about restoring this phone to the factory Gingerbread and removing Cyanogenmod?
Baby steps please.
Click to expand...
Click to collapse
I'm by no means an expert.
I follow the guidelines here to flash my Xperia Sola from ICS to a Kitkat rom.
http://forum.xda-developers.com/xperia-u/issues/getting-startedrooting-bootloader-t2100529
I'm not entirely sure but downgrading should be similar? Fastboot (via flashtool) and flash boot.img. Then in recovery mode, flash the stock Gingerbread rom?

Z2 with no clue

Hey guys I purchased a Sony Xperia x2 from swappa it came preinstalldd with cm nightlies 12 and now the phone is having issues and I want to switch roms.
I just have no idea how to or what to look for. Please help me by directing me to the right material
Thanks lot
@hdiszk
IF you want to revert to stock rom just flash a full .ftf rom with flashtool.
Files and guides here:
http://forum.xda-developers.com/showthread.php?t=2759934

Rooting Help Please 5.1.1

Hi Ya'll and Happy New Year,
I need some help in rooting my Z C833. Before I tell you my ordeal here is the system details:
OS 5.1.1
Build 14.6.A.1.236
Bootloader: Unlocked via sony
Now i am not a advanced user when it comes to android stuff, I am still learning. All the talks and guides about rolling back and going to kitkat and flashing and recovering TA partion is kinda making me confused. I have seen many guides, i tried to roll back via flashtools, use king root to acheive root, install dual recovery then flash super user. This is the extent of my knowledge.
When i try to either ftf a pre rooted file to a 5.0.x fw i LOSE ROOT, every single time. Can someone help me out. What am i doing wrong?
For example I roll backed to (C6833_14.5.A.0.270_Customized_HK) installed King root, pushed (ZU-lockeddualrecovery2.8.23-RELEASE.combined) flashed (BETA-SuperSU-v2.49) and then went back to flashtools to ftf (C6833_14.6.A.0.368_Generic Telenor Norway) and i LOSE ROOT (ahhhhhhhhh):silly:
If there is no option for me to update to stock rooted rom, can i install a custom rom with a update fw?
Ideally, stock or custom, i just want to utilize the sound and screen mods on this forum for the z ultra, for that i need custom recovery, for that i need root :S
I know the answer might be very simple, but like i said i m out of ideas.................
Thanks in advance for your help.
anyone???
Flash kitkat ftf, root, flash pre rooted 5.1.1
Did you read here: http://forum.xda-developers.com/xperia-z-ultra/development/ub-14-6-1-236-stock-ftf-root-t3270850
Thank you very much pckoloji and RealityFails for your input.
I was able to fix it with the link provided : http://forum.xda-developers.com/xper...-root-t3270850
Thank you once again.

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