Recovery Xperia Z1 Fota

Hi, guys, I moved from an s2 plus to an xpreia z1, things were simple then I could just hold two keys and I would be in recovery, flash what I needed but my recovery would be persistent, I'm a bit confused, what do I have to do to be able to boot into recovery on the z1 ? when I change the kernel, surprise I cant boot into recovery! what do I have to do ? I dont want to be flashboot-ing all the time!!! any solution ?

[Zenfone 5] System update fails with status 0, fota return code 409

I flashed recovery and flastboot versions 2.21.20.44_ww successfully.
But when I send the package UL-ASUS_T00F-WW-5.3.3.3-user via adb sideload, I get errors.

E: Can't open /tmp/update-script.log

(After receiving package)

Finding update package...
Opening update package...
Verifying update package...
Installing update...
Device image SKU:
WW
OTA image SKU: WW
E:Error in /tmp/update.zip
(Status 0)
E: fota_return_code 409
Installation aborted.
E:Can't open /tmp/update-script.log
E:Can't open /tmp/update-script.log


Please help.

[NX505J] I just don't get it -- why no FOTA ?

Hey guys,
Was wondering lately - there are lots of new firmware updates for the Nubia Z7 Max (started with 3.09...3.22...and now 3.55...)
I just dont get it -- why I don't get this updates via FOTA? why do we have to flash them?
I'm currently running the official 3.22 firmware with GAPPS installed.

Thanks! :cool: