[SOLVED] Going back to complete stock ? First time Sony user. - Sony Xperia Z Ultra

Hello guys, I need some help here.
This is my first Sony device, so please be patient
Here is what I have:
TA Backup
All drivers and flashtool installed (latest version)
A C6802 running AOSPA
Here's what I want to do :
Go back to stock, locked bootloader.
The problem is, I've no idea how to do that !
Flashtool doesn't recognize my device when I connect it and it doesn't even list the ftf I've put in the firmware folder
I think the file is corrupted. Does anybody have a mirror for .532 for C6802 ? ( I've already tried the repository, but the google docs link just keeps stopping the download every 5 minutes !)
Plus, should I restore TA before or after ?
What if I want to keep the unlocked bootloader ?
Any help would be appreciated
Sent from my Xperia Z Ultra using xda app-developers app

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Ok so you can find some other ftf here http://forum.xda-developers.com/showthread.php?t=2463701 even if it is not from your country no problem. I advise you to take HK firmware and to avoid China.
After the other problem is that Flashtool doesn't recognize your device. Did you well enable usb debug? Did you unlock and make TA backup with Flashtool?
Envoyé depuis mon C6802 avec xda premium 4

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bASKOU said:
Ok so you can find some other ftf here http://forum.xda-developers.com/showthread.php?t=2463701 even if it is not from your country no problem. I advise you to take HK firmware and to avoid China.
After the other problem is that Flashtool doesn't recognize your device. Did you well enable usb debug? Did you unlock and make TA backup with Flashtool?
Envoyé depuis mon C6802 avec xda premium 4
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No, I backed up TA with the TA Backup command line tool and unlocked with flashtool
Sent from my Xperia Z Ultra using xda app-developers app

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warfareonly said:
No, I backed up TA with the TA Backup command line tool and unlocked with flashtool
Sent from my Xperia Z Ultra using xda app-developers app
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so when you hold the volume up and connect USB to the computer (at the exact same time) flashtool doesn't detect? The dialog box doesn't say anything?

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Install drivers from here http://forum.xda-developers.com/showthread.php?p=45634459 and if you are on Flashtool 11.0 be sure to follow installation process and to import device as explain on the original thread.
Envoyé depuis mon C6802 avec xda premium 4

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bASKOU said:
Install drivers from here http://forum.xda-developers.com/showthread.php?p=45634459 and if you are on Flashtool 11.0 be sure to follow installation process and to import device as explain on the original thread.
Envoyé depuis mon C6802 avec xda premium 4
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I'm using Flashtool 0.9.12.1, the latest one. Do I still have to import the device ?
Edit: The new ftf is showing up ! Now I just connect the device in flashmode and flash ? What about the TA Backup ?
Edit2: Plus I also installed the Flashtool drivers in the drivers folder which came with flashtool...

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warfareonly said:
I'm using Flashtool 0.9.12.1, the latest one. Do I still have to import the device ?
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Of you unlocked with Flashtool it mean you have the good drivers and that Flashtool should recognize your device. But personally I have a bug with my Pc, each time I reboot my Pc I need to uninstall and install back all Android devices I wish to use. Check on device manager after plug your phone if there is not an error with the driver.
Envoyé depuis mon C6802 avec xda premium 4

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bASKOU said:
Of you unlocked with Flashtool it mean you have the good drivers and that Flashtool should recognize your device. But personally I have a bug with my Pc, each time I reboot my Pc I need to uninstall and install back all Android devices I wish to use. Check on device manager after plug your phone if there is not an error with the driver.
Envoyé depuis mon C6802 avec xda premium 4
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Success ! Flashtool detected the device, but it couldn't identify it as C6802. Still went ahead with flashing. Now I'm on .526 with unlocked bootloader. :highfive:
Gonna try to relock it with the Backup-TA tool I used to backup the TA partition.

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warfareonly said:
Success ! Flashtool detected the device, but it couldn't identify it as C6802. Still went ahead with flashing. Now I'm on .526 with unlocked bootloader. :highfive:
Gonna try to relock it with the Backup-TA tool I used to backup the TA partition.
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Should be fine, as you do it is adb and use different drivers.
Envoyé depuis mon C6802 avec xda premium 4

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bASKOU said:
Should be fine, as you do it is adb and use different drivers.
Envoyé depuis mon C6802 avec xda premium 4
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Thanks a lot ! I'm now back to stock and locked bootloader :victory:
Thanks limit reached for today, I'll do it tomorrow

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warfareonly said:
Thanks a lot ! I'm now back to stock and locked bootloader :victory:
Thanks limit reached for today, I'll do it tomorrow
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Happy I could be of help, enjoy!
Envoyé depuis mon C6802 avec xda premium 4

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Subscribed... Still haven't bothered to root yet, glad for any info when I do. Thanks to all for posting.
Sent from my C6833 using XDA Premium 4 mobile app