M9 - S-ON UNLOCKED - downgrade 3.35.401.10 to 1.40.401.8

after changing misc (i did from within twrp):

C:\ADB\ADB_HTC>htc_fastboot_3.0.9.2.exe oem rebootRUU
...
OKAY [  0.063s]
finished. total time: 0.063s
htc_fastboot finished. total time: 0.732s

C:\ADB\ADB_HTC>htc_fastboot_3.0.9.2.exe flash zip 0PJAIMG_HIMA_UHL_L50_SENSE70_HTC_Europe_1.40.401.8_Radio_01.02_U11440261_60.03.50505G_F_release_435816_signed.zip
htc_fastboot v3.0.9.2 (2015-05-29)
found large-zip header, file count: 7
processing file 1/7...
sending 'zip' (111730 KB)...
OKAY [  6.673s]
writing 'zip'...
(bootloader) HOSD CL#671758
(bootloader) GPT is up-to-dated. [17408]
(bootloader) Perform pre-update
FAILED (remote: 90 hboot pre-update! please flush image again immediately )
finished. total time: 9.669s
preupdate done, rebooting...
resending command...
< waiting for device >
sending 'zip' (111730 KB)...
OKAY [  6.891s]
writing 'zip'...
(bootloader) HOSD CL#671758
(bootloader) GPT is up-to-dated. [17408]
(bootloader) Perform pre-update
(bootloader) start@23
(bootloader) aboot_signed.img@100%
(bootloader) rcdata.img@BYPASS
(bootloader) splash1.nb0@BYPASS
(bootloader) adsp.img@BYPASS
(bootloader) modem_st1.img@BYPASS
(bootloader) modem_st2.img@BYPASS
(bootloader) sensor_hub.img@BYPASS
(bootloader) sdi.img@100%
(bootloader) tp_MXM11876.img@BYPASS
(bootloader) sbl1-8994-1.img@100%
(bootloader) tp_SYN3351.img@BYPASS
(bootloader) pmic-8994-1.img@100%
(bootloader) cpe.img@BYPASS
(bootloader) pg2fs_ship_signkey.img@BYPASS
(bootloader) apppreload.img@BYPASS
(bootloader) rpm-8994-1.img@100%
(bootloader) tz-8994-1.img@100%
(bootloader) hyp-8994-1.img@100%
(bootloader) cota.img@BYPASS
(bootloader) recovery_signed.img@BYPASS
(bootloader) ERR image hosd type or version check failed
(bootloader) hosd_signed.img@100%
(bootloader) boot_signed.img@BYPASS
(bootloader) radio.img@BYPASS
FAILED (remote: 90 hboot pre-update! please flush image again immediately )
finished. total time: 11.978s
preupdate done, rebooting...
resending command...
< waiting for device >
sending 'zip' (111730 KB)...
OKAY [  2.643s]
writing 'zip'...
FAILED (remote: cannot flash this partition in s-on state)
finished. total time: 2.659s
htc_fastboot finished. total time: 58.136s

===> Note: the above failed to continue because it rebooted to bootloader, not ruu mode



C:\ADB\ADB_HTC>htc_fastboot_3.0.9.2.exe oem rebootRUU
...
OKAY [  0.016s]
finished. total time: 0.016s
htc_fastboot finished. total time: 0.192s

C:\ADB\ADB_HTC>htc_fastboot_3.0.9.2.exe flash zip 0PJAIMG_HIMA_UHL_L50_SENSE70_HTC_Europe_1.40.401.8_Radio_01.02_U11440261_60.03.50505G_F_release_435816_signed.zip
htc_fastboot v3.0.9.2 (2015-05-29)
found large-zip header, file count: 7
processing file 1/7...
sending 'zip' (111730 KB)...
OKAY [  6.153s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) GPT is up-to-dated. [17408]
FAILED (remote: FAIL90 hboot pre-update! please flush image again immediate)
finished. total time: 9.194s
preupdate done, rebooting...
resending command...
sending 'zip' (111730 KB)...
OKAY [  4.670s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) GPT is up-to-dated. [17408]
(bootloader) start@23
(bootloader) aboot_signed.img@100%
(bootloader) rcdata.img@100%
(bootloader) splash1.nb0@100%
(bootloader) adsp.img@100%
(bootloader) modem_st1.img@100%
(bootloader) modem_st2.img@100%
(bootloader) sdi.img@100%
(bootloader) sbl1-8994-1.img@100%
(bootloader) pmic-8994-1.img@100%
(bootloader) cpe.img@100%
(bootloader) pg2fs_ship_signkey.img@100%
(bootloader) apppreload.img@33%
(bootloader) apppreload.img@66%
(bootloader) apppreload.img@99%
(bootloader) apppreload.img@100%
(bootloader) rpm-8994-1.img@100%
(bootloader) tz-8994-1.img@100%
(bootloader) hyp-8994-1.img@100%
(bootloader) cota.img@100%
(bootloader) sensor_hub.img@0%
(bootloader) recovery_signed.img@100%
(bootloader) hosd_signed.img@100%
(bootloader) boot_signed.img@100%
(bootloader) radio.img@100%
(bootloader) sensor_hub.img@0%
(bootloader) sensor_hub.img@15%
(bootloader) sensor_hub.img@25%
(bootloader) sensor_hub.img@40%
(bootloader) sensor_hub.img@50%
(bootloader) sensor_hub.img@60%
(bootloader) sensor_hub.img@70%
(bootloader) sensor_hub.img@85%
(bootloader) sensor_hub.img@95%
(bootloader) sensor_hub.img@100%
(bootloader) sensor_hub.img@100%
(bootloader) tp_MXM11876.img@100%
(bootloader) tp_SYN3351.img@BYPASS
(bootloader) Update zip file OK
(bootloader) end@Done
OKAY [ 65.492s]
finished. total time: 70.162s
processing file 2/7...
sending 'zip' (474906 KB)...
OKAY [ 31.894s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) start@1
(bootloader) system.img_00@11%
(bootloader) system.img_00@23%
(bootloader) system.img_00@35%
(bootloader) system.img_00@47%
(bootloader) system.img_00@59%
(bootloader) system.img_00@71%
(bootloader) system.img_00@83%
(bootloader) system.img_00@95%
(bootloader) system.img_00@100%
(bootloader) Update zip file OK
(bootloader) end@Done
OKAY [ 24.468s]
finished. total time: 56.362s
processing file 3/7...
sending 'zip' (460393 KB)...
OKAY [ 31.773s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) start@1
(bootloader) system.img_01@12%
(bootloader) system.img_01@24%
(bootloader) system.img_01@36%
(bootloader) system.img_01@48%
(bootloader) system.img_01@60%
(bootloader) system.img_01@72%
(bootloader) system.img_01@84%
(bootloader) system.img_01@96%
(bootloader) system.img_01@100%
(bootloader) Update zip file OK
(bootloader) end@Done
OKAY [ 24.174s]
finished. total time: 55.947s
processing file 4/7...
sending 'zip' (479653 KB)...
OKAY [ 32.444s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) start@1
(bootloader) system.img_02@12%
(bootloader) system.img_02@24%
(bootloader) system.img_02@36%
(bootloader) system.img_02@49%
(bootloader) system.img_02@61%
(bootloader) system.img_02@73%
(bootloader) system.img_02@86%
(bootloader) system.img_02@98%
(bootloader) system.img_02@100%
(bootloader) Update zip file OK
(bootloader) end@Done
OKAY [ 23.803s]
finished. total time: 56.247s
processing file 5/7...
sending 'zip' (398695 KB)...
OKAY [ 27.691s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) start@1
(bootloader) system.img_03@12%
(bootloader) system.img_03@24%
(bootloader) system.img_03@36%
(bootloader) system.img_03@49%
(bootloader) system.img_03@61%
(bootloader) system.img_03@73%
(bootloader) system.img_03@86%
(bootloader) system.img_03@98%
(bootloader) system.img_03@100%
(bootloader) Update zip file OK
(bootloader) end@Done
OKAY [ 21.755s]
finished. total time: 49.446s
processing file 6/7...
sending 'zip' (262813 KB)...
OKAY [ 18.673s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) start@1
(bootloader) system.img_04@16%
(bootloader) system.img_04@33%
(bootloader) system.img_04@50%
(bootloader) system.img_04@67%
(bootloader) system.img_04@84%
(bootloader) system.img_04@100%
(bootloader) Update zip file OK
(bootloader) end@Done
OKAY [ 16.270s]
finished. total time: 34.944s
processing file 7/7...
sending 'zip' (10860 KB)...
OKAY [  1.745s]
writing 'zip'...
(bootloader) HOSD CL#549783
(bootloader) start@2
(bootloader) dzdata_32g.img@100%
(bootloader) boot_signed.img@100%
(bootloader) Update zip file OK
(bootloader) end@Done
OKAY [  4.103s]
finished. total time: 5.848s
rompack updated
htc_fastboot finished. total time: 350.997s

C:\ADB\ADB_HTC>htc_fastboot_3.0.9.2.exe reboot-bootloader
htc_fastboot v3.0.9.2 (2015-05-29)
rebooting into bootloader...
OKAY [  0.000s]
finished. total time: 0.000s
htc_fastboot finished. total time: 0.563s

C:\ADB\ADB_HTC>