[One (M9) Q&A, Help & Troubleshooting] RebeccaSugar:
Done, though, after doing the "0PJAIMG.zip" method once more, it interrupts the flash with a very fast error(?) message highlighted in white then quickly reverts to bootlooping the recovery splash screen (Black Background with Silver HTC Logo)

I decided to flash the boot.img and system.img

target reported max download size of 800000000 bytes

sending 'recovery' (20084 KB)...

OKAY [ 2.097s]

writing 'recovery'...

(bootloader) HOSD CL#695981

(bootloader) start@1

(bootloader) recovery@100%

(bootloader) Update partition OK

(bootloader) end@Done

OKAY [ 1.838s]

finished. total time: 3.939s

(bootloader) kernel: lk

(bootloader) product: htc_himawhl

(bootloader) version: 1.0

(bootloader) imei: 990005027515833

(bootloader) version-main: 3.41.651.4

(bootloader) boot-mode: download

(bootloader) version-baseband: 3.00.C1144084@60114

(bootloader) version-bootloader: 1.0.0.0000

(bootloader) mid: 0PJA20000

(bootloader) cid: SPCS_001

C:\Users\Infinity>Documents\Pack\fastboot.exe flash system C:\Users\Infinity\Documents\James\HTC\OUT_0PJA_3.41.651.21\system\system.img

target reported max download size of 800000000 bytes

Invalid sparse file format at header magi

erasing 'system'...

OKAY [ 0.232s]

sending sparse 'system' 1/6 (743090 KB)...

OKAY [ 40.331s]

writing 'system' 1/6...

(bootloader) HOSD CL#695981

(bootloader) start@1

(bootloader) system@100%

(bootloader) Update partition OK

(bootloader) end@Done

OKAY [ 28.653s]

sending sparse 'system' 2/6 (725823 KB)...

OKAY [ 39.600s]

writing 'system' 2/6...

(bootloader) HOSD CL#695981

(bootloader) start@1

(bootloader) system@100%

(bootloader) Update partition OK

(bootloader) end@Done

OKAY [ 27.937s]

sending sparse 'system' 3/6 (776453 KB)...

OKAY [ 42.390s]

writing 'system' 3/6...

(bootloader) HOSD CL#695981

(bootloader) start@1

(bootloader) system@100%

(bootloader) Update partition OK

(bootloader) end@Done

OKAY [ 30.090s]

sending sparse 'system' 4/6 (764994 KB)...

OKAY [ 41.446s]

writing 'system' 4/6...

(bootloader) HOSD CL#695981

(bootloader) start@1

(bootloader) system@100%

(bootloader) Update partition OK

(bootloader) end@Done

OKAY [ 30.371s]

sending sparse 'system' 5/6 (775925 KB)...

OKAY [ 42.348s]

writing 'system' 5/6...

(bootloader) HOSD CL#695981

(bootloader) start@1

(bootloader) system@100%

(bootloader) Update partition OK

(bootloader) end@Done

OKAY [ 29.562s]

sending sparse 'system' 6/6 (546809 KB)...

OKAY [ 31.210s]

writing 'system' 6/6...

(bootloader) HOSD CL#695981

(bootloader) start@1

(bootloader) system@100%

(bootloader) Update partition OK

(bootloader) end@Done

OKAY [ 21.738s]

finished. total time: 405.943s

They were successful, apparently, but I've seen no changes. When booting, it just hangs on the white splash screen with the green htc logo and the "This build is for development, etc" warning.

If only I had a way to boot a working recovery, the more I do this, the more it seems like it is without a shadow of a doubt, a hardware problem. :confused:

Here are some logs, the fw seems to match up with my phone just fine, nonetheles...

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