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Can't update Xperia J

Hi, wanting to update Xperia J to latest jelly bean official by Sony. Haven't rooted or unlocked bootloader phone says latest software updates already installed but I'm running Android 4.0.4. Tried PC Companion still says its latest when it isn't. Not wanting to use Sony update service as it will wipe all my photos and data. Don't want to go through all the hassle of backing up and restoring. Not wanting to root either. Please can someone help.

The only other way is flashtool but a data wipe would be highly recommended. or just stick with ICS

[Q] Can't find updates for android 4.4.4

Hello. My xperia m2 says that there are no updates and the phone is up to date but it's with android 4.4.2. Theres 1 secound delay in the sound when I play games or use downloaded apps like youtube also the audio doesn't sound very good. To fix that I need to update the android version but I cant. I connected the phone to my computer and updated it with sony PC companion but the version is still 4.4.2. What should I do? I don't want to use flashtools or anything. I think it's the phone's fault for that and I should give it back to the place where I bought it so they can fix that. The phone is brand new and they already changed my camera because it wasn't working. So what should I do?

I suppose it has to do with the Country of your phone and/or if it is branded. IF after using PC Companion it's still with 4.4.2 I'm afraid your best (and only) option is to use Flashtool. Not sure how it works if it is branded though, you may need to to something to be able to de-brand it.
Well, actually try first to check if 4.4.4 is available in this way:
- Dial *#*#7378423#*#* (*#*#service#*#*)
- Check the number in Service Info/SW Info/Customization version. You just need the xxxx-yyyy part
- Downdload and install Flashtool (it's small. You just need it for checking)
- Run Flashtool
- Go to Devices/Check Updates
- Select your phone double clicking on the id xxxx-yyyy you have got before.
- If the version is 18.3.C (like the one for 3 UK) there is no 4.4.4. the latest ROM is 4.4.2. It must be 18.3.1.C for 4.4.4

My is branded from T-mobile, and i flashed CE ftf to debrande, everything is good except i don't have extra apps that T-mobile puts in. As i know your safe flashing ftf cos it's official Sony's software, just using Flashtool instead of PC Companion and you won't lose warranty, as long as you don't unlock bootloader.
Good Luck.
Xperia M2 D2303 on K.K. 4.4.4

Do I install the flashtool on my computer or on my phone?

foxymount said:
Do I install the flashtool on my computer or on my phone?
Click to expand...
Click to collapse
Obviously on the computer. It's needed to flash the phones from it. Just google it, you find it immediately. Then if you decide to flash a generic 4.4.4 FTF just search around. There are dozens of guides in the Internet.

Alright thanks for your support guys

Upgrade with locked bootloader or install custom ROM?

Hi! I've decided that I'm going to upgrade my rooted Z3 (D6603) to Lollipop. I currently have a locked bootloader and I'm running Android 4.4.4 (23.0.A.2.93) which I rooted using Giefroot.
Now if I follow this tutorial, I can upgrade without unlocking. However, I'd prefer Stock Xperia at 5.1.1 (since its built for my specific hardware) over Generic. The problem is, there's no US T-Mobile 5.1.1 build for the D6603. The closest two builds are 5.1.1 Generic and 5.0.2 T-Mobile UK. I'm torn between these two options, as I can't seem to find any good list of pros/cons concerning Xperia vs. Generic and 5.0 vs. 5.1.
However, there is a third option I am considering. If I were to unlock my bootloader I could run CM12, which would be much better than both Stock Xperia and Generic IMO. The only issue with that is that I'm confused as to what I would end up loosing. I've backed up my DRM keys, but I don't know what good any of that is going to do for me. I've also seen that I may be able to restore functionality using this, but I'm worried I'd screw everything up, since I fully grasp what I'm doing. I also don't know if I could turn back and re-lock if anything were to go wrong.
So my question is: Which firmware do I flash? And what will I end up having to lose? My three options are as follows:
CyanogenMod 12 (After Unlocking the Bootloader)
Generic, Unbranded Android 5.1.1
Branded (T-Mobile UK) Android 5.0.2

There are NO differences between branded and un-branded Sony stock software. you can flash the "generic" variant (please be sure to match you phone model... d6603 and so on)
you can also update you phone with a flashable zip made of:
a stock sony FTF
Xzdr recovery
Supersu package
To do this you need: PRF creator ; Xperifirm (to download FTF's) ; Flashtool (to make FTF's) ; Xzdr Recovery Flashable package ; Supersu Package.
My experience with CM12 is terrible because you won't get any benefit over stock software, because stock is the most optimized / featured Rom for Z3. with CM12 be prepared to forget the "power on and play"
the "this" mod is a package to restore the features (the magic behind the DRM keys of stock roms only when you have lost your DRM keys. this mod cannot be used on non-Sony based software. DRM keys are lost forever if you do not backup them before bootloader unlock.

Just to verify before I go on with this: I won't need a unlocked bootloader, correct? All the links for Xzdr Recovery I can find state that they will brick a locked bootloader.

To experts, how can I Update after root?

Hi xda developers, I'm a new z3 user (D6633) running lollipop 5.1.1 , and I want to root my z3 to use titanium Backup,
1) I'm afraid that if I root my z3, I won't be able to update to marshmallow when it arrives, I also read somewhere that I still can update but will lose drm (I don't know what that is )
2) is there a way to unroot, to install the official update ?
Please explain in details and provide links if you could, cus I'm totally new on Sony
Any advice is appreciated

Im sure there will be a pre-rooted stock ROM for dl as soon after M. hits. Depends if one need to flash other things as well like firmware etc. but these things are included in the same FTF. I have gone through a few Android versions and things usually works out fine in a short matter of time.
If you absolutely want to go full stock, just flash a stock FTF from http://forum.xda-developers.com/z3/general/ftf-stock-firmwares-xperia-z3-models-t2886061
Using Flashtool.

Questions About Flashing ROMs

Hi there!
Apologies if there is an existing thread that covers this topic but I was unable to find anything so I decided to create one.
I'm based in Australia and currently using an Xperia XZ F8331 that is branded by my telco, Telstra.
What I would like to know is the following:
1. Where can I find official Sony ROMs? I would like to remove all traces of the Telstra branding, software, etc. and install the same ROM as would ship on the handset if purchased directly from Sony.
2. If there is such a ROM resource available and I successfully flash my handset, will I receive future software updates via OTA notifications as soon as Sony pushes them out into the world or will I still be waiting for my carrier to test and release their own update?
3. Are there any potential downsides from removing all traces of my carrier on my handset?
Essentially, I want my handset to be identical to one purchased directly from Sony with future updates still downloadable automatically and as quickly as Sony releases them.
Many thanks in advance for the help!

mouzii said:
Hi there!
Apologies if there is an existing thread that covers this topic but I was unable to find anything so I decided to create one.
I'm based in Australia and currently using an Xperia XZ F8331 that is branded by my telco, Telstra.
What I would like to know is the following:
1. Where can I find official Sony ROMs? I would like to remove all traces of the Telstra branding, software, etc. and install the same ROM as would ship on the handset if purchased directly from Sony.
2. If there is such a ROM resource available and I successfully flash my handset, will I receive future software updates via OTA notifications as soon as Sony pushes them out into the world or will I still be waiting for my carrier to test and release their own update?
3. Are there any potential downsides from removing all traces of my carrier on my handset?
Essentially, I want my handset to be identical to one purchased directly from Sony with future updates still downloadable automatically and as quickly as Sony releases them.
Many thanks in advance for the help!
Click to expand...
Click to collapse
1. You can download them in "XperiFirm" software. However, to my experience, it's best to use XperiFirm that's inside Flashtool's latest version. It will only work on latest version (0.9.23.2). You can find it at flashtool's website (here) and then you need to update to latest by replacing x10flasher.jar
2. Short answer: No. In order to flash another ROM you need to unlock your device. It's better to backup your unique DRM keys before unlocking. You will always be able to update your ROM, however OTA will never work again, unless you go back to everything stock.
3. Absolutely not. In fact it's even healthy

quera said:
2. Short answer: No. In order to flash another ROM you need to unlock your device. It's better to backup your unique DRM keys before unlocking. You will always be able to update your ROM, however OTA will never work again, unless you go back to everything stock.
Click to expand...
Click to collapse
Not true for stock ROMs flashed with flashtool. You only need to unlock if you are flashing a custom ROM, or one based on stock that has been modified in some way. Flashtool can only flash completely stock ROMs in flashmode using files downloaded direct from Sony servers that are completely unmodified. Flashtool does NOT require you to unlock the device in order to do this.
Once you have flashed a FTF on flashtool you WILL still receive OTA updates.