[Q] Downgrading firmware? - Xperia Z2 Tablet Q&A, Help & Troubleshooting

hey everyone, i have a z2 tablet (wifi only). i am running .402 currently but with the new exploits that have just been coming out, i need to downgrade. anybody have a guide to do this. i am currently not rooted and my bootloader is locked.

Flash a FTF.
No, no guide for that here. Has been explained numerous times elsewhere.

hasenbein1966 said:
Flash a FTF.
No, no guide for that here. Has been explained numerous times elsewhere.
Click to expand...
Click to collapse
Thanks, I have seen further info on this after tons of research.
I am having trouble finding a pre- .402 ftf for my device (SGP511). I found a russian one that i have heard most likely doesn't work. any idea where to find one i can flash and then exploit?

Likewise looking. There's supposed to be a .36 ftf available, but I haven't heard if anything more recent (except the .69 Russian, which has trouble reports).

Take the .36, where's the problem?

Related

[FIRMWARE][Ray][ST18a][URUSHI][REQUEST]

Hi everyone,
I have searched XDA-developers and Google and was unable to find any ROMs, generic or not, relating to the ST18a model of the Xperia Ray.
Does anyone have access to this ROM? Or is there a way for me to extract it from my device?
It's be very useful for rooting and whatnot.
Thanks in advance for your reply.
here
http://forum.xda-developers.com/showthread.php?t=1253112
and after it:
http://forum.xda-developers.com/showthread.php?t=1267294
here it is
funiewski said:
http://forum.xda-developers.com/showthread.php?t=1267294
here it is
Click to expand...
Click to collapse
Hi there,
Thanks for the reply. But that post leads to the ST18i not the ST18a
sorry, my fault
Jozinek said:
I can make flashable ftf file for you but you can do it yourself
Click to expand...
Click to collapse
Hey there,
Can you point me to a good tutorial for making your own ROMs from your own device?
Problem solved
Hi, I'm from Mexico, and I was having the same issue you have.
Couldn't get a St18a rom anywhere.
I found this web site:
www(dot)wotanserver(dot)com/en/page/tutorial-debranding-flash-sony-ericsson
They say you have to download the driver package and then a flasher software.
I was a bit unconfident about it.
But since i already had flash tool and had mounted a St18i rom.
The worse could happen, was to have the need to reflash it again.
So, i tried and it worked, just as it said.
You just install the programs, run them, start your phone in flash mode, it detects it and install the driver. Then you have a list of compatible roms, select Generic Us (st18a) and that's it, let it work. It will flash it and tell when its over.
Next, you turn it on, and you have a St18a debranded phone :-D
They ussually charge for this services, by now, you just have to registere and can make 1 flash, totally charge free.
Hope I help you, just as much as all XDA developers have help me trought all my devices.
Best of lucks!
can somebody post stock st18A kernel as i crushed mine and can't download it to reflash
Is anyone with the ST18a nice enough to upload the official ROM? Would it be safe to flash an ST18i ROM on an ST18a?
ST18a and ST18i are based on the same firmware, the only difference is 3G working band.
I am not sure, but the ROMs should work on both. As I said, I am not sure, if someone would confirm this, would be nice.
Just the baseband files from original ST18a ROM would be needed.
I would rather not risk it, might try and find someone that has an ST18a running the stock ROM. Mine should be running the stock ROM, though I wanted to try flashing it with a different one, as it has a battery indicator problem, and I am not sure whether the issue is software or hardware related yet.
Need ST18A 4.0.2.A.0.42 Gingerbread 2.3.4 Stock Firmware also...
Xperia Ray ST18A Canadian (TELUS) came with ICS with too many Problems. Downgraded to 4.0.2.A.0.42 CE (Central Europe) which rebrands phone as ST18i which results in not finding Rogers/Fido 3G. Only 2G. Looked everywhere for the North American 0.42 Version of Gingerbread because it can be Rooted without unlocking Bootloader. I have not found this FTF File ANYWHERE I have searched. I have been looking for over a week. If I find this I will give it to anyone who needs. If someone has it please come here. Thanks!

Urgently Need Middle East Stock 510/532 FTF Rom File For Flashing...

I'm stuck on the current 532 Chinese version and it's not letting me upgrade or downgrade.
Been over 6 hours flashing and flashing and I'm having problems with the HK/Asian versions of the stock rom.
Since downgrading from 4.3 to 4.2 my sim no longer works regardless. I'm not getting any signal regardless of what I do.
I bought my Xperia Z Ultra from UAE and would preferably want to use a UAE/Middle Eastern Rom.
Previously I had the FTF file for the Middle East and it worked wonders for me. Unfortunately I've removed and can no longer find it.
Should anyone be kind enough to upload the FTF file or even guide me to a working link I'd really appreciate it.
Thanks in advance.
C6802 or C6833 ?
Halim2k said:
C6802 or C6833 ?
Click to expand...
Click to collapse
6802. Thanks.
Here you go
XPERIA Z ULTRA C6802_14.1.B.1.532_GENERIC MEA.ftf
Oh, it looks like you've lost your IMEI, and that's why you're not getting a signal. This happens when you downgrade from 4.3 to 4.2. I have no idea why it happens, but it does, so follow this guide to restore your IMEI.
the problem may appear in some models. I downgraded mine from 4.3 to 4.2 without such problem.
p.s you can flash any firmware to your phone, no need to be in UAE. I live in Vietnam and I flashed European 4.3 on mine.
justsomebody said:
the problem may appear in some models. I downgraded mine from 4.3 to 4.2 without such problem.
p.s you can flash any firmware to your phone, no need to be in UAE. I live in Vietnam and I flashed European 4.3 on mine.
Click to expand...
Click to collapse
True, however, I had issues with the HK edition of the rom. It had some corruption or file missing since it would't allow me to properly root and when trying to boot in CWM it would't work.
Halim2k said:
Here you go
XPERIA Z ULTRA C6802_14.1.B.1.532_GENERIC MEA.ftf
Click to expand...
Click to collapse
Halim, thank you SO much bro, much appreciated.
LordManhattan said:
Oh, it looks like you've lost your IMEI, and that's why you're not getting a signal. This happens when you downgrade from 4.3 to 4.2. I have no idea why it happens, but it does, so follow this guide to restore your IMEI.
Click to expand...
Click to collapse
Correct, my imei was 000000000000000. I will refer to the link you provided. Thanks.
I've successfully UPGRADED to 532 Middle East version. :laugh:
Thanks to everyone for their support and response.
Unfortunately I'm not that technical with regards to flashing and such and usually I spend hours if not a whole day trying to solve a simple issue.
Usually when attempting downgrading, flashing and changing roms and using custom firmware I get stuck half way through.
This ends up with a half working phone, boot loops, etc...
This happened when trying to get the 290 firmware, rooted with root. The part with regards to using a dual recovery was not too clear and this resulted in a bricked device.
I'm now back to stock 532, rooted & happy. To be honest, I didn't see any big differences with 532 and 290.
I cannot live without root. My bootloader is locked and unlocking it is a pain in the ass, lol.
I will patiently wait for the proper update of Android 4.4 Kitkat until I decide on upgrading.
I can only hope there is an easy rooting method of 4.4 when it's released. I don't plan on backing up data, reinstalling everything again, etc...
Let's hope when 4.4 Kitkat is released there is an easy rooting method which doesn't require an unlocked bootloader. :laugh:

flashing firmware

hey guys i have a z2 d6503 in canada with the unlocked boot loader option as yes and i am on firmware .55, how can i upgrade the firmware and will everything still work or will it have any issues flashing different country firmwares? any help would be greatly appreciated .
bboi26 said:
hey guys i have a z2 d6503 in canada with the unlocked boot loader option as yes and i am on firmware .55, how can i upgrade the firmware and will everything still work or will it have any issues flashing different country firmwares? any help would be greatly appreciated .
Click to expand...
Click to collapse
http://forum.xda-developers.com/xperia-z/general/tutorial-how-to-flash-stock-roms-t2240614
the only problem i beleive you'll have is waiting till that country's update is released to get it
bboi26 said:
hey guys i have a z2 d6503 in canada with the unlocked boot loader option as yes and i am on firmware .55, how can i upgrade the firmware and will everything still work or will it have any issues flashing different country firmwares? any help would be greatly appreciated .
Click to expand...
Click to collapse
On stock .55, if you unlock the bootloader you don't lose things like x-reality. But it looks like with the .402 update, you do. I know monx is prepping a workaround on his custom ROM, so that might fix it. You won't have any issues with different country firmwares, aside from what ron3000 mentioned regarding updates. But you have to relock your bootloader to get updates via PC Companion or OTA.
Just grab the latest version of Flashtool; you can lock/unlock the bootloader, flash firmware FTFs and kernels with it.
And of course .. be careful

FTF older than .402 for SGP512?

I have the 32GB Wifi ONLY Z2 Tablet, and I was wondering if anyone has or can find the FTF file for any version older than .402. I would really like to use the new root exploit but I need an FTF file older than .402. Thanks!
Uclydde said:
I have the 32GB Wifi ONLY Z2 Tablet, and I was wondering if anyone has or can find the FTF file for any version older than .402. I would really like to use the new root exploit but I need an FTF file older than .402. Thanks!
Click to expand...
Click to collapse
I'm looking for the same. Can we use SGP511 FTF, or does it have to be SGP512? I guess not that many people have SGP512.
star85 said:
I'm looking for the same. Can we use SGP511 FTF, or does it have to be SGP512? I guess not that many people have SGP512.
Click to expand...
Click to collapse
I would think you could use the sgp511's ftf. I'm not entirely sure tho.
star85 said:
I'm looking for the same. Can we use SGP511 FTF, or does it have to be SGP512? I guess not that many people have SGP512.
Click to expand...
Click to collapse
Actually I can confirm that you can't.
I am also looking fot a FTF older than .402 for the SGP512 (32GB)
I don't understand why someone wouod buy the 16gb version anyway when loads of the space is already used up by the os before you start putting apps on. Surely the extra cash is worth double the storage after paying so much for it in the first place!
Sent from my GT-P5110 using Tapatalk
This exploit allegedlyvworks on 402
http://forum.xda-developers.com/showthread.php?t=2784900
Sent from my LG-D802T using Tapatalk
I have received my Z2 tablet 32gb wifi and it's running .36 - I'm willing to make an FTF if someone can tell me how to make one copying directly from the device. All the guides I have found are how to make it from the Sony Companion files and of course, when I connect it now, it just offers me 402, not the version that's currently on there.

android 9 in canada?

Hi new user here. I checked the website and I see I have the latest Android version but in the website it shows android 9 but I have android 8. I am wondering if android 9 is released in Canada. Thanksh
https://xpericheck.com/device/G8341
A lot regions skipped November/Pie (probably due to time constraints or ignorance) and are being pushed out now as we speak.
Techamazon said:
https://xpericheck.com/device/G8341
A lot regions skipped November/Pie (probably due to time constraints or ignorance) and are being pushed out now as we speak.
Click to expand...
Click to collapse
Ya but even there there is no mention of G8343 variant. You can't search it lol.
https://xpericheck.com/device/G8343
Not sure why Canadians have a different version since the US is the same as ROW (except JP). Oh well... Anyhow, expect updates to start being pushed from the 6th all the way to the 14th. After that, nothing will happen till January. But judging from the average time it seems you belong to the week 2 category (10-14th).
I couldn't wait for it so I flashed the US firmware since I don't care for the fingerprint reader
Phat-T said:
I couldn't wait for it so I flashed the US firmware since I don't care for the fingerprint reader
Click to expand...
Click to collapse
Why not flash a European firmware?
Umm from what I remembered, European firmwares uses the 4G symbol instead of LTE. That's the only reason I chose the US firmware haha
Phat-T said:
Umm from what I remembered, European firmwares uses the 4G symbol instead of LTE. That's the only reason I chose the US firmware haha
Click to expand...
Click to collapse
Lol hahaha. Anyways can you help me flash the firmware? I am not so sure how to flash 2 different variants
PM'd you
I want to flash aslwell and have rooted my Samsung device but never a sony
So I have no Idea how to get the roms or apks to flash my phone with and what applications are used to flash Sony phones
Addy1993 said:
So I have no Idea how to get the roms or apks to flash my phone with and what applications are used to flash Sony phones
Click to expand...
Click to collapse
flashing a sony phone is different to that of samsung. You have to backup drm key(ta partition) before you even unlock your bootloader, because without that you camera will become useless. I cant give you links but I am sure if you look around you will find them. After unlocking your bootloader it is very simple. Just flash a kernel and the rom that you want to.
The application we use for flashing kernels for sony phones is flashtool. Just make sure you have the right kernels and files before flashing.
Goodluck.
My bootloader is unlocked already I just can't find a rom that will work for an xz1 can you give me a hint on what exactly to search. There is no support for the xz1 and as for backing up the drm key where is that found?
Addy1993 said:
My bootloader is unlocked already I just can't find a rom that will work for an xz1 can you give me a hint on what exactly to search. There is no support for the xz1 and as for backing up the drm key where is that found?
Click to expand...
Click to collapse
Yup there isn't really much or any support at all for Sony phones nowadays. I didn't find any good custom ROMs so sorry I wouldn't be the right person to advice you. And as for DRM keys. Once you unlock it. It's gone. I heard they have introduced some fixes or something. I don't know.
Need help
Can you give me guidance on how to with out braking my phone
As soon as you said you had 8.1 on your phone I knew this would be an interesting read.. Not sure how long ago you. unlocked your BL but once you did it you lost your DRM keys, though if you had read a bit you would have realized that.. there is a DRM fix for oreo (8.0), Pie is debatable as the camera appears to work without one but a few other thing appears to be missing related to video and sound enhancements without a DRM fix.. Now as far as flashing go it's time for you to do your homework as there are a few guidelines for using Flashtool and Newsflasher.. no disrespect here but hunt them down and read through them before you do anything else to your phone..

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