HTC Desire 500 can`t flash recovery

[YanAnaY]

Hi,
I already had unlocked my HTC Desire 500 phone with custom ROM (used PhilZ CWM-Recovery and UFO Kit-Kat ROM).

Yesterday my phone go out off batteries, and from that time it boot only to bootloader.

When I try to load any new recovery image, fastboot say this:
C:\android>fastboot flash recovery recovery.img
sending 'recovery' (6982 KB)...
OKAY [ 1.369s]
writing 'recovery'...
FAILED (remote: image update error)

even recovery partition is not able to erase:
C:\android>fastboot erase recovery
erasing 'recovery'...
FAILED (remote: not allowed)
finished. total time: 0.004s

getvar all:
(bootloader) version: 0.5
(bootloader) version-bootloader: 1.02.0001
(bootloader) version-baseband: 14.13.36Q4.03
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main:
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: HT41NWE00555
(bootloader) imei: 358044052722366
(bootloader) meid:
(bootloader) product: z4u
(bootloader) platform: HBOOT-8x25Q
(bootloader) modelid: 0P3Z11200
(bootloader) cidnum: HTC__032
(bootloader) battery-status: good
(bootloader) battery-voltage: 4180mV
(bootloader) partition-layout: HTC
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-455c2e73
(bootloader) hbootpreupdate: 12
(bootloader) gencheckpt: 0
all: Done!

Any ideas what is wrong?
Thanks!