[Q] Need help for bricked Razr i / firmware links topic

Hello Forum,

as a newbie in Razr i I tried today to unblock my Bootloader and of course made an error during this:(
I downloaded the file "RAZRi_Root_Linux.zip" from user "mattlgrof".
Unpacked it and run the file "Root.sh".... yes I know. I have read the HowTo, but ...I don't know what I thought!?
And of course the shell said reboot and the phone stuck on the red Motorola logo :)
Looking into the file, I saw that the last command executed was:
"sudo $fastboot flash boot ./files/razr_i_boot_insecured.img"
And the output was:
"< waiting for device >
sending 'boot' (11264 KB)...
OKAY [ 1.657s]
writing 'boot'...
FAILED (remote: Preflash validation failed)
finished. total time: 2.021s
rebooting...

finished. total time: 0.240s
Phone is rebooting please dont touch anything."

As I have read until know I could restore the phone by installing a astock firmware via RSD, right?
But in the last 5! hours I couldn't find a valid link for a firmware download. :(
So my question/request are:
- Can I solve this by installing a stock ROM via RSD?
- Can someone provide me an link to a firmware download?
The specs of my phone:
- European ( germany), unbranded
- OTA update to JB 4.1.2
- previously rooted with windows using a "android trick", I don't exactl remember how :)

If you need more information, please ask.
Thank you in advance, and have a nice day.
Kind regards.
giderBey