[One (M7) Q&A, Help & Troubleshooting] nicholas.b.carter:
I was in the process of flashing new firmware a few minutes ago and the phone froze after:

C:\android\platform-tools>adb reboot bootloader

C:\android\platform-tools>fastboot oem rebootRUU

...

(bootloader) Start Verify: 0

OKAY [ 0.102s]

finished. total time: 0.104s

C:\android\platform-tools>fastboot flash zip tmo_fw_1.27.531.11_expanded.zip

sending 'zip' (41896 KB)...

OKAY [ 3.529s]

writing 'zip'...

(bootloader) zip header checking...

(bootloader) zip info parsing...

(bootloader) checking model ID...

(bootloader) checking custom ID...

(bootloader) start image[hboot] unzipping for pre-update check...

(bootloader) start image[hboot] flushing...

(bootloader) [RUU]WP,hboot,0

(bootloader) [RUU]WP,hboot,99

(bootloader) [RUU]WP,hboot,100

(bootloader) ...... Successful

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

finished. total time: 5.469s

C:\android\platform-tools>fastboot flash zip tmo_fw_1.27.531.11_expanded.zip

sending 'zip' (41896 KB)...

OKAY [ 3.461s]

writing 'zip'...

(bootloader) zip header checking...

(bootloader) zip info parsing...

(bootloader) checking model ID...

(bootloader) checking custom ID...

(bootloader) start image[adsp] unzipping & flushing...

(bootloader) [RUU]UZ,adsp,0

(bootloader) [RUU]UZ,adsp,11

(bootloader) [RUU]UZ,adsp,22

(bootloader) [RUU]UZ,adsp,34

(bootloader) [RUU]UZ,adsp,45

(bootloader) [RUU]UZ,adsp,56

(bootloader) [RUU]UZ,adsp,67

(bootloader) [RUU]UZ,adsp,79

(bootloader) [RUU]UZ,adsp,90

(bootloader) [RUU]UZ,adsp,100

(bootloader) [RUU]WP,adsp,0

(bootloader) [RUU]WP,adsp,100

(bootloader) ...... Successful

(bootloader) start image[boot] unzipping & flushing...

(bootloader) [RUU]UZ,boot,0

(bootloader) [RUU]UZ,boot,18

(bootloader) [RUU]UZ,boot,35

(bootloader) [RUU]UZ,boot,46

(bootloader) [RUU]UZ,boot,63

(bootloader) [RUU]UZ,boot,74

(bootloader) [RUU]UZ,boot,87

(bootloader) [RUU]UZ,boot,99

(bootloader) [RUU]UZ,boot,100

(bootloader) [RUU]WP,boot,0

(bootloader) [RUU]WP,boot,99

(bootloader) [RUU]WP,boot,100

(bootloader) ...... Successful

(bootloader) start image[pg2fs_spcustom] unzipping & flushing...

(bootloader) [RUU]UZ,pg2fs_spcustom,0

(bootloader) [RUU]UZ,pg2fs_spcustom,23

(bootloader) [RUU]UZ,pg2fs_spcustom,45

(bootloader) [RUU]UZ,pg2fs_spcustom,67

(bootloader) [RUU]UZ,pg2fs_spcustom,88

(bootloader) [RUU]UZ,pg2fs_spcustom,100

(bootloader) ...... Successful

(bootloader) start image[recovery] unzipping & flushing...

(bootloader) [RUU]UZ,recovery,0

(bootloader) [RUU]UZ,recovery,11

(bootloader) [RUU]UZ,recovery,21

(bootloader) [RUU]UZ,recovery,32

(bootloader) [RUU]UZ,recovery,43

(bootloader) [RUU]UZ,recovery,53

(bootloader) [RUU]UZ,recovery,72

(bootloader) [RUU]UZ,recovery,85

(bootloader) [RUU]UZ,recovery,96

(bootloader) [RUU]UZ,recovery,100

(bootloader) [RUU]WP,recovery,0

(bootloader) [RUU]WP,recovery,99

(bootloader) [RUU]WP,recovery,100

(bootloader) ...... Successful

(bootloader) start image[rpm] unzipping & flushing...

(bootloader) [RUU]UZ,rpm,0

(bootloader) [RUU]UZ,rpm,100

(bootloader) [RUU]WP,rpm,0

(bootloader) [RUU]WP,rpm,100

(bootloader) ...... Successful

(bootloader) start image[sbl1-1] unzipping & flushing...

(bootloader) [RUU]UZ,sbl1-1,0

(bootloader) [RUU]UZ,sbl1-1,100

(bootloader) signature checking...

(bootloader) verified fail

(bootloader) ..... Bypassed

(bootloader) start image[sbl1-2] unzipping & flushing...

(bootloader) [RUU]UZ,sbl1-2,0

(bootloader) [RUU]UZ,sbl1-2,100

(bootloader) signature checking...

(bootloader) verified fail

(bootloader) ..... Bypassed

(bootloader) start image[sbl1-3] unzipping & flushing...

(bootloader) [RUU]UZ,sbl1-3,0

(bootloader) [RUU]UZ,sbl1-3,100

(bootloader) signature checking...

(bootloader) [RUU]WP,sbl1-3,0

(bootloader) [RUU]WP,sbl1-3,100

(bootloader) ...... Successful

(bootloader) start image[sbl2] unzipping & flushing...

(bootloader) [RUU]UZ,sbl2,0

(bootloader) [RUU]UZ,sbl2,100

(bootloader) [RUU]WP,sbl2,0

(bootloader) [RUU]WP,sbl2,100

(bootloader) ...... Successful

(bootloader) start image[sbl3] unzipping & flushing...

(bootloader) [RUU]UZ,sbl3,0

(bootloader) [RUU]UZ,sbl3,100

(bootloader) [RUU]WP,sbl3,0

(bootloader) [RUU]WP,sbl3,100

(bootloader) ...... Successful

(bootloader) start image[sp1] unzipping & flushing...

(bootloader) [RUU]UZ,sp1,0

(bootloader) [RUU]UZ,sp1,26

(bootloader) [RUU]UZ,sp1,50

(bootloader) [RUU]UZ,sp1,75

(bootloader) [RUU]UZ,sp1,100

(bootloader) [RUU]WP,sp1,0

(bootloader) [RUU]WP,sp1,100

(bootloader) ...... Successful

(bootloader) start image[tp] unzipping & flushing...

(bootloader) [RUU]UZ,tp,0

(bootloader) [RUU]UZ,tp,100

(bootloader) ...... Successful

(bootloader) start image[tz] unzipping & flushing...

(bootloader) [RUU]UZ,tz,0

(bootloader) [RUU]UZ,tz,100

(bootloader) [RUU]WP,tz,0

(bootloader) [RUU]WP,tz,100

(bootloader) ...... Successful

(bootloader) start image[radio] unzipping & flushing...

(bootloader) [RUU]UZ,radio,0

(bootloader) [RUU]UZ,radio,6

(bootloader) [RUU]UZ,radio,13

(bootloader) [RUU]UZ,radio,19

(bootloader) [RUU]UZ,radio,26

(bootloader) [RUU]UZ,radio,33

(bootloader) [RUU]UZ,radio,39

(bootloader) [RUU]UZ,radio,46

(bootloader) [RUU]UZ,radio,53

(bootloader) [RUU]UZ,radio,59

(bootloader) [RUU]UZ,radio,66

(bootloader) [RUU]UZ,radio,73

(bootloader) [RUU]UZ,radio,79

(bootloader) [RUU]UZ,radio,86

(bootloader) [RUU]UZ,radio,93

(bootloader) [RUU]UZ,radio,99

(bootloader) [RUU]UZ,radio,100

(bootloader) [RUU]WP,radio,0

(bootloader) [RUU]WP,radio,26

(bootloader) [RUU]WP,radio,53

(bootloader) [RUU]WP,radio,79

(bootloader) [RUU]WP,radio,100

(bootloader) ...... Successful

(bootloader) start image[rcdata] unzipping & flushing...

(bootloader) [RUU]UZ,rcdata,0

(bootloader) [RUU]WP,rcdata,0

(bootloader) ...... Successful

OKAY [ 54.350s]

finished. total time: 57.816s

C:\android\platform-tools>fastboot reboot-bootloader

rebooting into bootloader...

OKAY [ 0.037s]

finished. total time: 0.039s

C:\android\platform-tools>fastboot getvar all

(bootloader) version: 0.5

(bootloader) version-bootloader: 1.44.0000

(bootloader) version-baseband: 4A.17.3250.20

(bootloader) version-cpld: None

(bootloader) version-microp: None

(bootloader) version-main: 1.27.531.11

(bootloader) version-misc: PVT SHIP S-OFF

(bootloader) serialno: FA34CW907626

(bootloader) imei: 355972050065839

(bootloader) meid: 00000000000000

(bootloader) product: m7_ul

(bootloader) platform: HBOOT-8064

(bootloader) modelid: PN0713000

(bootloader) cidnum: T-MOB010

(bootloader) battery-status: good

(bootloader) battery-voltage: 3737mV

(bootloader) partition-layout: Generic

(bootloader) security: off

(bootloader) build-mode: SHIP

(bootloader) boot-mode: FASTBOOT

getvar:all FAILED (status read failed (Too many links))

finished. total time: 0.138s

C:\android\platform-tools>fastboot oem writecid 11111111

FROZE HERE... phone restarted and I ran:

C:\android\platform-tools>fastboot reboot-bootloader

rebooting into bootloader...

FAILED (command write failed (Unknown error))

finished. total time: 0.645s

C:\android\platform-tools>adb devices

List of devices attached

C:\android\platform-tools>fastboot flash zip tmo_fw_1.27.531.11_expanded.zip

sending 'zip' (41896 KB)...

FAILED (command write failed (Unknown error))

finished. total time: 0.646s

C:\android\platform-tools>fastboot oem rebootRUU

...

FAILED (command write failed (Unknown error))

finished. total time: 0.611s

C:\android\platform-tools>adb reboot bootloader

error: device not found

Now the phone is stuck at the HTC logo and when I connect it to pc it doesnt show device is connected. When I try and hold power and up it reboots and gets stuck at the htc logo.

PLEASE HELP!