QUOTE(Bernard Yeo @ Dec 26 2013, 05:58 PM)
Hi, anyone can help me root my Xperia Z1 C6903? It's on Jelly Bean 4.3, Build 14.2.A.0.290. Fastboot.exe is stuck on < waiting for device >
The instructions are very complicated. If someone could help me do it, I'll treat her / him a cup of ice blended or frappucino

You need to be on .534 to be able to root, then only flash to higher firmware.
QUOTE(WindChaseR @ Dec 26 2013, 07:18 PM)
no matter how u're still required to flash back to .534 fw to attain root 1st.. read the guide again..
Back to my topic:
Reflash .534, rooted and successfully installed dual recovery

indeed DoomLord's one working..
lazy to update to .257, will straight away flash to custom rom..
Couldnt rmb where i read this but is it true that i always need to reflash recovery after flashing a custom rom?
If you want to flash custom rom you need to be unlock bootloader usually but since you have recovery now you don't need to.
QUOTE(ZeneticX @ Dec 26 2013, 07:47 PM)
once u recover back to nandroid your root will stil be intact, no need re-root
btw check your IMEI, if you tried to update to .290.... sony have implemented some kind of protection or region locking with .290.... once u downgrade to another country fw it will disable your IMEI
btw for recovery i tried both, both also working fine for me
Which I'm facing. Can't my IMEI to work again.I flash to 4.3 then I'll get it back but not when I down grade firmware.