[One (M9) Q&A, Help & Troubleshooting] TwinAdk:
[MENTION=5116541]Danny201281[/MENTION], the process halted at some point....

Console output:

C:\Users\User>htc_fastboot flash zip C:\users\User\Downloads\rom.zip

sending 'zip'... (134725 KB) OKAY

sending time = 9.252 secs

writing 'zip'... (bootloader) HOSD CL#549783

(bootloader) GPT is up-to-dated. [17408]

(bootloader) start@23

(bootloader) apppreload.img@33%

(bootloader) apppreload.img@66%

(bootloader) apppreload.img@99%

(bootloader) apppreload.img@100%

(bootloader) aboot_signed.img@100%

(bootloader) cota.img@100%

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

(bootloader) sdi.img@100%

(bootloader) hosd_signed.img@100%

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

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

(bootloader) boot_signed.img@100%

(bootloader) recovery_signed.img@100%

(bootloader) adsp.img@100%

(bootloader) cpe.img@100%

(bootloader) rcdata.img@100%

(bootloader) modem_st1.img@100%

(bootloader) modem_st2.img@100%

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

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

(bootloader) pg2fs_ship_signkey.img@100%

(bootloader) splash1.nb0@100%

(bootloader) radio.img@100%

(bootloader) sensor_hub.img@BYPASS

(bootloader) tp_SYN3351.img@BYPASS

(bootloader) tp_MXM11876.img@BYPASS

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

sending 'zip'... (381051 KB) OKAY

sending time = 29.528 secs

writing 'zip'... (bootloader) HOSD CL#549783

(bootloader) start@1

(bootloader) system.img_00@12%

(bootloader) system.img_00@24%

(bootloader) system.img_00@36%

(bootloader) system.img_00@48%

(bootloader) system.img_00@60%

(bootloader) system.img_00@72%

(bootloader) system.img_00@84%

(bootloader) system.img_00@96%

(bootloader) system.img_00@100%

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

sending 'zip'... (520974 KB) OKAY

sending time = 38.422 secs

writing 'zip'... (bootloader) HOSD CL#549783

(bootloader) start@1

(bootloader) system.img_01@12%

(bootloader) system.img_01@24%

(bootloader) system.img_01@37%

(bootloader) system.img_01@49%

(bootloader) system.img_01@62%

(bootloader) system.img_01@74%

(bootloader) system.img_01@87%

(bootloader) system.img_01@99%

(bootloader) system.img_01@100%

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

sending 'zip'... (486872 KB) OKAY

sending time = 37.048 secs

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@48%

(bootloader) system.img_02@60%

(bootloader) system.img_02@72%

(bootloader) system.img_02@84%

(bootloader) system.img_02@96%

(bootloader) system.img_02@100%

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

sending 'zip'... (379518 KB) OKAY

sending time = 29.166 secs

writing 'zip'... (bootloader) HOSD CL#549783

(bootloader) start@1

(bootloader) system.img_03@12%

(bootloader) system.img_03@24%

(bootloader) system.img_03@37%

(bootloader) system.img_03@49%

(bootloader) system.img_03@62%

(bootloader) system.img_03@74%

(bootloader) system.img_03@87%

(bootloader) system.img_03@99%

(bootloader) system.img_03@100%

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

sending 'zip'... (376278 KB) OKAY

sending time = 29.568 secs

writing 'zip'... (bootloader) HOSD CL#549783

(bootloader) start@1

(bootloader) system.img_04@12%

(bootloader) system.img_04@24%

(bootloader) system.img_04@37%

(bootloader) system.img_04@49%

(bootloader) system.img_04@62%

(bootloader) system.img_04@74%

(bootloader) system.img_04@87%

(bootloader) system.img_04@99%

(bootloader) system.img_04@100%

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

sending 'zip'... (85838 KB) OKAY

sending time = 7.133 secs

writing 'zip'... (bootloader) HOSD CL#549783

(bootloader) start@1

(bootloader) system.img_05@47%

(bootloader) system.img_05@94%

(bootloader) system.img_05@100%

(bootloader) Update zip file OK

(bootloader) end@Done

OKAY

sending 'zip'... (13135 KB) OKAY

sending time = 1.981 secs

writing 'zip'... (bootloader) HOSD CL#549783

^C

^C is me killing it with CTRL+C..

The phone is now stuck at the HTC update logo, with a 100% progress bar. fastboot reboot does nothing, and neither does holding power..

Kind Regards

TwinAdk