Has anyone updated to 257 using flashtool?

[dazone]

Has anyone updated to 257 using flashtool? and how were the results.

[Uliwooly]

Some reviews

http://www.xperiablog.net/2013/10/15/new-xperia-z1-firmware-update-14-1-g-2-257-now-rolling/

this is the change log

http://blogs.sonymobile.com/2013/10/15/now-rolling-jelly-bean-4-2-firmware-update-for-xperia-z1-and-...

For Xperia Z1, we’ve…

• tweaked the camera algorithm for even better all round performance
• refined Sony’s Smart Social Camera platform, so Xperia Camera apps run more smoothly (particularly Burst Mode, Superior Auto, AR Effect and Sweep Panorama…)

• re-calibrated the display ever so slightly, to ensure viewing experiences remain bright & bold
• economised power consumption for longer battery life
• streamlined Exchange connection for faster email sync, display and download

*As usual, timing & availability may vary by market & carrier

[Harime]

Any tutorial on how to flash it without unlocking the bootloader? Is that possible?

[Uliwooly]

Here you go 

How to manually update, downgrade, root 2013 Xperias

http://talk.sonymobile.com/thread/124152

[andygoh]

patched mine using flashtool

[dswn67]

andygoh

So how is it. Was it worth the update. What improvements did you see. Camera, Wifi etc.

Any problems?

[HR]

Recommended/Better wait for sony official firmware.

[zxcvbad]

I've flashed my Ultra with .257 lots of bugs was improved, like for example widgets flickering on lock screen, speaker sound, battery consumption it also brought newer qualcomm ES3 driver revision. But there are still some bugs remaining:

1.Calibration of the touch sensor still isn't there,makes it hard to type with one hand.
2. Wifi still drops connection
3. Some menus (apps and system) are not accessible during voice call
4. Voice dialer doesn't dial numbers under the lock screen,you have to switch off protection pattern or password (but that's not a solution)
5. Sony unlimited video doesn't display hd movies only sd, play movies says hd movies are not supported.
Possibly there are more bugs I just haven't noticed it yet as it's only few days I have this firmware