bricked - XPERIA X10 Q&A, Help & Troubleshooting

hi can anyone help me i rooted my x10i and when i installed a custom rom it stuck on startup TECHDEVIL rom and never starts while it has also lost its root and recovery and now when i try to root it in this condition it says
--- STARTING ----
--- WAITING FOR DEVICE
adb server is out of date. killing...
* daemon started successfully *
--- creating temporary directory
mkdir: can't create directory 'tmp': File exists
--- cleaning
--- pushing zergRush
511 KB/s (23060 bytes in 0.044s)
--- correcting permissions
--- executing zergRush
[**] Zerg rush - Android 2.2/2.3 local root
[**] (C) 2011 Revolutionary. All rights reserved.
[**] Parts of code from Gingerbreak, (C) 2010-2011 The Android Exploid Crew.
[+] Found a GingerBread ! 0x00000118[*] Scooting ...[*] Sending 149 zerglings ...[*] Sending 189 zerglings ...
[-] Hellions with BLUE flames !
--- WAITING FOR DEVICE TO RECONNECT
if it gets stuck over here for a long time then try:
disconnect usb cable and reconnect it
toggle "USB DEBUGGING" (first disable it then enable it)
--- DEVICE FOUND
--- pushing busybox
2338 KB/s (1075144 bytes in 0.449s)
--- correcting permissions
--- remounting /system
mount: permission denied (are you root?)
--- checking free space on /system
71 KB/s (439 bytes in 0.006s)
--- Free space on /system : 173852 bytes
--- no cleanup required
--- copying busybox to /system/xbin/
/system/xbin/busybox: cannot open for write: Read-only file system
--- correcting ownership
chown: /system/xbin/busybox: Read-only file system
--- correcting permissions
chmod: /system/xbin/busybox: Read-only file system
--- installing busybox
--install: applet not found
--- pushing SU binary
failed to copy 'files\su' to '/system/bin/su': Read-only file system
--- correcting ownership
chown: /system/bin/su: Read-only file system
--- correcting permissions
chmod: /system/bin/su: Read-only file system
--- correcting symlinks
rm: remove '/system/xbin/su'?

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Use Flashtool.