RUU Stuck on "(0/7) Sending" - AT&T HTC One (M8)

I'm trying to update my phone using RUU, but it seems to be stuck on 0/7 Sending. It's been there for over an hour now. "adb devices" doesn't return anything, but "fastboot devices" returns HTxxxxxxxxxx fastboot.
Would unplugging the phone at this stage cause any damage? Searching around I saw somebody mention USB 3.0 can have some issues with RUU. I'd like to try it in a 2.0 port, but I"m not sure if it's safe to unplug (doesn't look like its done anything to the phone yet, but I figured it would be safer to ask here first).
Any other suggestions are welcome as well. Not sure what to do here.
edit:
By the way, phone has a stock rom, stock recovery, and the bootloader is relocked

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Arsencon said:
I'm trying to update my phone using RUU, but it seems to be stuck on 0/7 Sending. It's been there for over an hour now. "adb devices" doesn't return anything, but "fastboot devices" returns HTxxxxxxxxxx fastboot.
Would unplugging the phone at this stage cause any damage? Searching around I saw somebody mention USB 3.0 can have some issues with RUU. I'd like to try it in a 2.0 port, but I"m not sure if it's safe to unplug (doesn't look like its done anything to the phone yet, but I figured it would be safer to ask here first).
Any other suggestions are welcome as well. Not sure what to do here.
edit:
By the way, phone has a stock rom, stock recovery, and the bootloader is relocked
Click to expand...
Click to collapse
This has been happening to me for forever. I've unplugged my phone and restarted process with no problems, BUT DO THAT AT YOUR OWN RISK!

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I'm sure you've probably already decided on one action or another by this point (as your post was from yesterday). But I agree with the above, its at your own risk; but if you ask me what I would do, I would just unplug it and start again (and think I've done so in the past).
Not sure if killing the RUU process on the PC, or restarting the computer is any better or not. I'd think that if it were actually sending or installing something to the phone (which it doesn't seem to be) it would be just as "bad" as unplugging the phone.

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I had the same problem. I'm not suggesting you do this but this is what I did. When it got stuck on 0/7 I unplugged it. Restarted the phone. Backed up everything using twrp . Rebooted. Then I ran the ruu with the phone on and not fast through fastboot usb. If you have another emulator on your pc like bluestacks turn it off (bluestack for me is c:/programfiles/bluestacke/quit.exe to turn off). My boot loader is unlocked but I dont know if that matters.
Sent from my HTC One_M8 using XDA Free mobile app

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HInstinct said:
My boot loader is unlocked but I dont know if that matters.
Click to expand...
Click to collapse
Bootloader unlocked is okay (RUU will run) if you have s-off.
If s-on, the bootloader needs to be RELOCKED or LOCKED.

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Arsencon said:
I'm trying to update my phone using RUU, but it seems to be stuck on 0/7 Sending. It's been there for over an hour now. "adb devices" doesn't return anything, but "fastboot devices" returns HTxxxxxxxxxx fastboot.
Would unplugging the phone at this stage cause any damage? Searching around I saw somebody mention USB 3.0 can have some issues with RUU. I'd like to try it in a 2.0 port, but I"m not sure if it's safe to unplug (doesn't look like its done anything to the phone yet, but I figured it would be safer to ask here first).
Any other suggestions are welcome as well. Not sure what to do here.
edit:
By the way, phone has a stock rom, stock recovery, and the bootloader is relocked
Click to expand...
Click to collapse
Same issue i have faced while updating . Just I have killed the tasks of RUU in Task Manager , unplugged and plugged again and restarted RUU update. RUU update done smoothly there after..

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i have the same problum but when i unplug the usb cable the device has restard itself but no any problum here usman engeneer

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(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: [email protected]
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 6.20.502.5
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: HT45SWM06618
(bootloader) imei: XXXXXXXXXXXXXXX ( Deleted)
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: m8_ul_ca
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B12000
(bootloader) cidnum: CWS__001
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 205bdca3
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.125s
Bootloader - Unlocked
Recovery - TWRP
Rooted - Yes
Custom ROM - Resurrection Remis 5.8.5 Final
if want to go back to stock what is procedure
i have below RUU
RUU_M8_UL_M60_SENSE70_ATT_MR_Cingular_US_6.20.502. 5_combined.exe
can i run this exe after relock the bootloader?

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safrassm said:
if want to go back to stock what is procedure
i have below RUU
RUU_M8_UL_M60_SENSE70_ATT_MR_Cingular_US_6.20.502. 5_combined.exe
can i run this exe after relock the bootloader?
Click to expand...
Click to collapse
Not related to the topic of the thread.
I'll answer you somewhere else . . . in one of the 10 threads you spammed. And now you see why cross posting is against the rules.