[One (M9) Q&A, Help & Troubleshooting] MeltdownSpectre:
This is what happens when I type: 'fastboot flash firmware firmware.zip':

htc_fastboot flash firmware firmware.zip

sending 'firmware' (74111 KB)... OKAY

writing 'firmware'... (bootloader) HOSD CL#599004

FAIL35: SD_PARTITION_NOT_SUPPORT firmware

FAILED (remote: 35: SD_PARTITION_NOT_SUPPORT firmware)

Execution time is 6(s)

---------- Post added at 04:53 AM ---------- Previous post was at 04:51 AM ----------

@clsA

This time, the flash process was different, since it didn't boot when flashing 0PJAIMG.zip through download mode.

I tried again, but this time using htc_fastboot, here's the result:

sending 'zip'... (74111 KB) OKAY

sending time = 5.360 secs

writing 'zip'... (bootloader) HOSD CL#599004

(bootloader) Perform pre-update

FAIL90 hboot pre-update! please flush image again immediately

FAILED (remote: 90 hboot pre-update! please flush image again immediately)

For "hboot-preupdate" response, restart the same procedure for device HT54EYJ05668...

< waiting for device >

sending 'zip'... (74111 KB) OKAY

sending time = 5.329 secs

writing 'zip'... (bootloader) HOSD CL#599004

(bootloader) Perform pre-update

(bootloader) start@16

(bootloader) aboot_signed.img@100%

(bootloader) adsp.img@BYPASS

(bootloader) boot.img@BYPASS

(bootloader) hosd_signed.img@100%

(bootloader) hyp-8994-1.img@100%

(bootloader) pg2fs_ship_signkey.img@BYPASS

(bootloader) pmic-8994-1.img@100%

(bootloader) rcdata.img@BYPASS

(bootloader) recovery.img@BYPASS

(bootloader) rpm-8994-1.img@100%

(bootloader) sbl1-8994-1.img@100%

(bootloader) sdi.img@100%

(bootloader) sensor_hub.img@BYPASS

(bootloader) tp_MXM11876.img@BYPASS

(bootloader) tz-8994-1.img@100%

(bootloader) radio.img@BYPASS

FAIL90 hboot pre-update! please flush image again immediately

FAILED (remote: 90 hboot pre-update! please flush image again immediately)

For "hboot-preupdate" response, restart the same procedure for device HT54EYJ05668...

sending 'zip'... (74111 KB) OKAY

sending time = 5.454 secs

writing 'zip'... (bootloader) HOSD CL#599004

FAIL90 hboot pre-update! please flush image again immediately

FAILED (remote: 90 hboot pre-update! please flush image again immediately)

For "hboot-preupdate" response, restart the same procedure for device HT54EYJ05668...

< waiting for device >

sending 'zip'... (74111 KB) OKAY

sending time = 5.532 secs

writing 'zip'... (bootloader) HOSD CL#599004

(bootloader) start@16

(bootloader) aboot_signed.img@100%

(bootloader) adsp.img@100%

(bootloader) boot.img@100%

(bootloader) hosd_signed.img@100%

(bootloader) hyp-8994-1.img@100%

(bootloader) pg2fs_ship_signkey.img@100%

(bootloader) pmic-8994-1.img@100%

(bootloader) rcdata.img@100%

(bootloader) recovery.img@100%

(bootloader) rpm-8994-1.img@100%

(bootloader) sbl1-8994-1.img@100%

(bootloader) sdi.img@100%

(bootloader) tz-8994-1.img@100%

(bootloader) radio.img@100%

(bootloader) sensor_hub.img@BYPASS

(bootloader) tp_MXM11876.img@BYPASS

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

Flash Zip Complete

Execution time is 18(s)

---------- Post added at 04:57 AM ---------- Previous post was at 04:53 AM ----------

What do you mean system?

I was on 1.40.708.9 before, now I'm on 2.11.708.27 (as shown in download mode), but the phone still refuses to boot.

You want me to type: htc_fastboot flash zip firmware.zip twice?

So after typing that twice, it should flash twice and it should reboot itself, or after 2 flashes, should I reboot into bootloader?

Been 5 mins since the last fastboot flash as well and no sign of life yet. Still stuck at HTC logo.