Este que me indicas es el que uso, cuando flaseo a 587, y no pense que se podia usar ahora, pero aun asi, ahora da un error, no se si puedes saber de que va:
ClockWorkMod Recovery 5.0.2.6
Xperia Arc/Neo
Credits to :
nobodyAtall@xda
installation script by puppet13th@xda
Please connect your devices and enable usb debugging
waiting for device . . .
push: recovery/sh -> /data/local/tmp/sh
push: recovery/recovery.tar -> /data/local/tmp/recovery.tar
push: recovery/cwm-rec -> /data/local/tmp/cwm-rec
push: recovery/chargemon2 -> /data/local/tmp/chargemon2
push: recovery/chargemon1 -> /data/local/tmp/chargemon1
5 files pushed. 0 files skipped.
2661 KB/s (2682952 bytes in 0.984s)
49 KB/s (788 bytes in 0.015s)
ready to work . . .
Wake up the screen!
Presione una tecla para continuar . . .
Press Allow on Super User Request
installing ClockWorkMod Recovery 5.0.2.6
cp: cannot create '/system/xbin/sh': Path does not exist
charger exist . . .
chmod: /system/xbin/sh: No such file or directory
cleaning up . . .
Presione una tecla para continuar . . .
!!!!! una cosa que se me ocurre, puede que este recovery, no este haciendo bien los wipe, etc...? !!!!!!!!!!!!!!!!!!!!!