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Is it possible to use flashtool to flash OTA

Am a new bee with Sony mobile phone, and want to know: Is it possible to use flashtool to flash OTA files? So I can keep locked and rooted from Ver. 534 to Ver. 257?
Sent from my C6902 using xda app-developers app

No
flashtool flashes FTF files only in flashmode.
But of course you upgrade to .257 using flashtool and stay locked and rooted..thats what flashtool is for

gregbradley said:
No
flashtool flashes FTF files only in flashmode.
But of course you upgrade to .257 using flashtool and stay locked and rooted..thats what flashtool is for
Click to expand...
Click to collapse
I don't understand, can you flash .257 and keep root?
Doesn't he need to have or get a .534 that's from the right region, root it, then OTA?

benziii said:
I don't understand, can you flash .257 and keep root?
Doesn't he need to have or get a .534 that's from the right region, root it, then OTA?
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Click to collapse
You cant flash anything in flashtool and keep root.
He can use flashtool to flash 534 FTF to downgrade using flashtool then update OTA (Via the phone) to update and keep root.

gregbradley said:
You cant flash anything in flashtool and keep root.
He can use flashtool to flash 534 FTF to downgrade using flashtool then update OTA (Via the phone) to update and keep root.
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Click to collapse
Which I just said:silly:
But I see now I misread what you wrote earlier.

Thank you. I understand. (～o～)
Sent from my C6902 using xda app-developers app

OTA update after rooting

So.. I was on 14.2.A.1.136 (4.3) stock firmware.. I wanted to root and I had to downgrade to 4.2.2 then root then flashing 14.2.A.0.290 (4.3) firmware.. Thanks to @shem2409 and @[NUT] for this method.
Anyway.. After rooting and flashing and all of that.. I received an OTA update for the stock 14.2.A.1.136 firmware.. And I was really surprised because what I know is that you lose the OTA updates and pc companion updates capabilities after you root your phone.
So my Question is.. If I updated the firmware OTA will I lose thr root? I can't afford to root it again for at least 3 weeks because my laptop is on the maintenance right now ..and I need the root privileges.
Sent from my C6903 using XDA Premium 4 mobile app

Mohamed_Aly said:
So.. I was on 14.2.A.1.136 (4.3) stock firmware.. I wanted to root and I had to downgrade to 4.2.2 then root then flashing 14.2.A.0.290 (4.3) firmware.. Thanks to @Nut for this method.
Anyway.. After rooting and flashing and all of that.. I received an OTA update for the stock 14.2.A.1.136 firmware.. And I was really surprised because what I know is that you lose the OTA updates and pc companion updates capabilities after you root your phone.
So my Question is.. If I updated the firmware OTA will I lose thr root? I can't afford to root it again for at least 3 weeks because my laptop is on the maintenance right now ..and I need the root privileges.
Sent from my C6903 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Hi
Did the same thing for my phone....however I did not update back to 4.3 via ota but instead downloaded the pre-rooted firmware version for 14.2.A.1.136 pointed out bh someone to me on xda. I'd suggest you do the same as I havent lost root access after finishing this.

rossvatsan said:
Hi
Did the same thing for my phone....however I did not update back to 4.3 via ota but instead downloaded the pre-rooted firmware version for 14.2.A.1.136 pointed out bh someone to me on xda. I'd suggest you do the same as I havent lost root access after finishing this.
Click to expand...
Click to collapse
is it the same firmware ?? I mean .. is there any differences between the pre-rooted version and the original ?
and I read about that there is a chance of hard brick the phone after doing this .. did you face any similar problem ?

No... I had no issues.... Yeah the same firm ware...

[Q] Rooting with C6906 with 4.4

Hello,
I have a Bell Canada Xperia Z1 C6906 (Locked Bootloader) on 14.3.A.0.757 that is unrooted and I would like some help/advice about rooting it with the least amount of distress since while I need the features provided by rooting I cannot afford to brick my phone. So any help would be very much appreciated.
I have looked through the information and I will provide what I know below - is it correct, is there more I need to do?
Install Flashtool and all drivers.
Backup my TA partition for future reference/restoration.
Download FTF firmware that is version .534 - I found C6906 14.1.G.1.534 Rogers CA (which should be compatible even though its Rogers and I have Bell?) and flash it via flashtool.
Root the Xperia Z1 with 360Root.
Download the NUT's latest locked dual recovery
Z1-lockeddualrecovery2.7.123-BETA.installer.zip (10.22MB) and follow the instructions from [DEVDB][TWRP][PhilZ Touch][CWM] XZDualRecovery 2.7.1XX RC
Download C6906_14.2.A.0.290.flashable.zip and C6906_14.2.A.0.290_Stripped.ftf, place *flashable.zip on the SDCard and *Stripped.ftf in the Flashtool/firmware folder.
Create a full backup of my phone through TWRP
Wipe Dalivik-Cache, System, Data, Cache.
Flash " C6906_14.2.A.0.290.flashable.zip", power off. In Flashtool flash everything (check mark System, data etc ?) for "C6906_14.2.A.0.290_Stripped.ftf". Reboot and on language select reboot into TWRP and restore DATA backup. Wipe Dalivik-Cache and reboot.
Update to the newest version of Android - download C6906_14.3.A.0.757.flashable.zip and C6906_14.3.A.0.757_Stripped.ftf from [STOCK][C69XX][4.4] Update to 14.3.A.0.757 [Root & XZDR][DE-/ODEX] by NUT. Place *flashable.zip on the SDCard and *Stripped.ftf in the Flashtool/firmware folder.
Repeat step 7-9.
Should have a rooted newest version of the Xperia Z1?
Did I miss anything or make it too complex? It seems like a lot of steps just to have a rooted and up to date phone.

Don't use 290 version, use 534.
There's a lot bricked device reported when guys flashed 290 over 757 and version before 757 (can't remember number of that version).
Also, if you don't plan to unlock bootloader there's no need to backup TA, it's OK to do that but it's not necessary.
You can't lose DRM keys as long as you don't unlock it.
And yeah...use binary root method (just Google "binary root method xda" and pick first result.
360 and Kingo are banned from XDA because they read and store your IMEI (and that's totally unnecessary)
Sent from my D6503 using Tapatalk

funky0308 said:
Don't use 290 version, use 534.
There's a lot bricked device reported when guys flashed 290 over 757 and version before 757 (can't remember number of that version).
Also, if you don't plan to unlock bootloader there's no need to backup TA, it's OK to do that but it's not necessary.
You can't lose DRM keys as long as you don't unlock it.
And yeah...use binary root method (just Google "binary root method xda" and pick first result.
360 and Kingo are banned from XDA because they read and store your IMEI (and that's totally unnecessary)
Sent from my D6503 using Tapatalk
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Click to collapse
So I should just stay with .534 and not upgrade at all? I was hoping for an up-to-date version since some of the features in 4.4 are really useful to me.

magwart said:
So I should just stay with .534 and not upgrade at all? I was hoping for an up-to-date version since some of the features in 4.4 are really useful to me.
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Click to collapse
Hehe....no
Just use 534 to downgrade and root and install recovery.
Then flash NUT 757 prerooted ROM from recovery and flash stripped ftf (kernel) using flashtool.
Only thing what I wanna said is - flash 534 and root it don't use 290 - downgrading from 757 to 290 could brick your device...
Sent from my D6503 using Tapatalk

Ok!
So downgrade to .534, do binary root, install DualRecovery and then just flash .757.
Also I keep seeing you need to reflash DualRecovery, would I do so after flashing .757?

No need to apply a root process if you are installing dual recovery
Sent from my C6903 using XDA Premium 4 mobile app

[Q] Towel Rooting the new LT25i (4.3) 9.2.A.2.5 firmware

Did anyone succeed to root the new LT25i (4.3) 9.2.A.2.5 firmware, using towelroot or equivalent method ?
Don't want to loose my stock root after update and not having a way to do it.

arturiu said:
Did anyone succeed to root the new LT25i (4.3) 9.2.A.2.5 firmware, using towelroot or equivalent method ?
Don't want to loose my stock root after update and not having a way to do it.
Click to expand...
Click to collapse
yes towel root works, but after using it, use flashtool and root via flashtool as well to have busybox installed.

[Q] Sony z1s 14.4.B.0.56 how to root?

How can i root it?

flashed older firmware .37 and rooted with Sony flashtool

How to root c6916
Try this link.
http://forum.xda-developers.com/xperia-z1/help/guide-downgrade-root-dualrecovery-c6916-t3062919