first your image is pretty low res that I can't see anything! but as far I saw everything get okey!
then just flash another boot.img. go to fastboot again flash another boot.img.
also be sure that you are flashing a really boot.img!! (which should be in elf format)
if you're willing to flash stock you can flash with flashtool and bring back your phone.
ALSO YOU MUST FLASH YOUR PHONE KERNEL not others this is pretty important.
- Download and install Flashtool by Androxyde. Remember to get 32 bit/64 bit version depending on your computer.
- Download any stock firmware, preferably for your area/country and unmodified. Make sure it is the full firmware! It should be at least ~200 MB, but will probably be much larger if I remember correctly, maybe ~700 MB, though it maybe compressed inside a ZIP. You can get stock FW's on the forums, just look around. It should be in .ftf format.
- Copy the .ftf file to "firmwares" folder, which is inside the Flashtool install folder. By default, this is C:\Flashtool.
- Start Flashtool and keep it open. For 64 bit, you have to specifically choose the "Flashtool64" program.
- Plug your USB cable into your computer, but not your phone.
- Hold down the volume down key and plug the USB cable into your phone.
- In Flashtool, look at the output window (the white space with all the log info) and one of the last entries should be "Device connected in flashmode" or something like that. If it says fastboot, repeat the process with the other volume key held down.
- It may ask you to choose your device first. If so, choose Xperia ZR (obviously).
- Click the button with lightning symbol on it. Select Flashmode and click OK.
- You should see the file you downloaded in the list. Select it.
- Make sure all the boxes in the "Wipe" section are checked, and all the boxes in the "Exclude" section are unchecked. DO NOT CHANGE ANY OTHER OPTIONS UNLESS YOU KNOW WHAT YOU ARE DOING!!!
- Click "Flash". Wait for it to complete and hope that no errors come up. :fingers-crossed:
- You should now have an out-of-the-box phone, software-wise. :good:
Are you running Windows 8? If so, you need to disable the driver protection. Follow the steps mentioned here.
He says something about installing with "have disk." I have no idea what this means, as I used a different method that I don't remember right now. After you boot in test mode as instructed, simply running the installer as you did before should work. Also, there's no need to install all the drivers. I don't know for sure, but it may be bad to have all the drivers installed. Maybe. In any case, you only need to install the "Common ADB drivers for Lagan, Fusion3 board devices based on APQ8064 chipset: Xperia Z, ZL, ZR, ZQ, A, UL, Tablet Z." It should be there in the driver install menu. If that doesn't work, install all of them.
If this doesn't work, or you're not on Windows 8, then download the latest FlashTool driver pack here. Actually, you should do that anyway, before everything else. Best to have the latest drivers when experimenting. The latest version is v1.5, at the time of writing. If yours is v1.5, leave it be.
If that doesn't work, then... Nope, I got nothing. If none of this works, ask an experienced dev for help, or give it to Sony service. They'll probably charge you quite a bit, so be prepared for that.
Hope this helps.