So I tried adding another boot.img (Doomlord's "Advanced Stock Kernel with CWM Recovery.zip"). At least I got back the SONY boot screen, but I am still stuck in a loop. I went to the CWM Recovery menu and tried to mount the sdcard to my computer but with no success. I looked under Device Manager on my computer to check if the phone was detected, and frankly it is. However, it shows "Xperia Z1" with a yellow triangle stating "The drivers for this device are not installed. (Code 28)". No matter if I try to uninstall/update drivers or download the official Xperia Z1 drivers and point it to that, I get the message "Windows could not find driver software for your device." So I cannot connect my phone storage to my computer, can't access the phone via ADB, nor can I use fastboot boot a working boot.img.
I searched around on Google and found a solution using EMMA (Sony's own Flash Tool for Xperia devices). But I needed to register an account, and after doing so I never get a confirmation email to activate my account. So I'm stuck where I am. What to do now?
I'm not even sure if my phone is unlocked yet or not. I did the "fastboot.exe -i 0x0fce oem unlock 0xKEY" (with my own key I got in the mail from Sony's generator) and it said "OKAY [ 21.790s]" etc. I presumed that it got unlocked by then. Right?
Thanks in advance!