help needed flashing ruu

hi I'm trying to restore a friends wiped phone but keep failing at the last hurdle
here.s the speck
(bootloader) version: 0.5
(bootloader) version-bootloader: 1.61.0000
(bootloader) version-baseband: 4T.35.3218.16
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 7.19.401.2
(bootloader) version-misc: PVT SHIP S-ON
(bootloader)
(bootloader) imei:
(bootloader) meid: 00000000000000
(bootloader) product: m7_ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: PN0710000
(bootloader) cidnum: HTC__001
(bootloader) battery-status: good
(bootloader) battery-voltage: 4321mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-0e2a13e5
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
i was on 7.19.401.30
and used this (adb shell
echo -ne "7.19.401.2\x00\x00" | dd of=/dev/block/mmcblk0p19 bs=1 seek=160
exit
adb reboot boot loader)
to downgrade my version as s-on
here are my fails on terminal stuarts-iMac:android-sdk-macosx:tools stuartambrose1$ fastboot oem rebootRUU
...
(bootloader) Start Verify: 3
OKAY [ 0.053s]
finished. total time: 0.053s
stuarts-iMac:android-sdk-macosx:tools stuartambrose1$ fastboot flash zip ruu.zip
target reported max download size of 1514139648 bytes
Invalid sparse file format at header magi
fastboot flash zip ruu.zip
error: write_sparse_skip_chunk: don't care size 174334115 is not a multiple of the block size 4096
sending sparse 'zip' (1478648 KB)...
error: write_sparse_skip_chunk: don't care size 174334115 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 174334115 is not a multiple of the block size 4096
OKAY [ 61.879s]
writing 'zip'...
(bootloader) signature checking...
FAILED (remote: 12 signature verify fail)
finished. total time: 199.883s
stuarts-iMac:android-sdk-macosx:tools stuartambrose1$ fastboot flash zip ruu.zip
target reported max download size of 1514139648 bytes
Invalid sparse file format at header magi
error: write_sparse_skip_chunk: don't care size 174334115 is not a multiple of the block size 4096
sending sparse 'zip' (1478648 KB)...
error: write_sparse_skip_chunk: don't care size 174334115 is not a multiple of the block size 4096
error: write_sparse_skip_chunk: don't care size 174334115 is not a multiple of the block size 4096
OKAY [ 62.095s]
writing 'zip'...
(bootloader) signature checking...
FAILED (remote: 12 signature verify fail)
finished. total time: 200.100s

thank in advance

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