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Help M8 Stuck in a Bootloop

mkgino

Newbie
Jun 4, 2015
11
1
Hi everyone im in a real jam here. First my M8 has never been modded its completely stock. It has only been unlocked with a code I paid for online over a year ago.

I had my phone sitting on my desk and it restarted on its own without touching it. It is stuck on the screen that says this below

***Software Status Official***
***LOCKED***
M8_UL PVT SHIP S-ON
HBOOT-3.19.0.0000
RADIO-INVALID_VER_INFO
OS-4.20.661.2
eMMC-boot 2048MB
Jan 28 2015, 22:47:19.0

FASTBOOT
<VOL UP> to previous item
<VOL DOWN> to next item
<POWER> to select item

HBOOT
RAMDUMP
REBOOT
REEBOOT FASTBOOT
POWER DOWN

when I try to go to recovery or even hboot to factory reset it just restarts then comes back to this screen again. Again I have never done anything to this phone and don't know where to go from here. if it helps any the phone is updated to android lollipop and is on a Canadian wireless network.

Thanks.
 
Welcome, sorry for woes.

First step - remove the sim and sd cards - hold volume up and power - it will force a power reset. Try to boot up after that.

I'm already 99% sure that won't work but let's hope for that 1%.

Failing that, power off, go ahead and put your sim and sd card back in.

Get the Mini-SDK if you don't already have fastboot on your pc -

http://androidforums.com/threads/adb-guide-updated-2014-11-11.443072/#post-5389081

Ignore the part about needing drivers for now.

Unzip the sdk-tools.zip file to get the sdk-tools folder. Windows Explorer, shift + right click the sdk-tools folder, choose Open command window here.

Power off phone. Hold volume down while powering on, follow on screen prompts so it says FASTBOOT at the top, FASTBOOT USB mode when plugged in to the pc.

In command window say -

fastboot getvar all

Alt+space to get command window menu, E for edit, select all, copy and paste into your reply here.

Be sure to remove the meid and serial numbers, those are private.
 
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C:\Users\\Desktop\sdk-tools\sdk-tools>fastboot getvar all
(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: INVALID_VER_INFO
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 4.20.661.2
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno:
(bootloader) imei:
(bootloader) imei2: Not Support
(bootloader) meid:
(bootloader) product: m8_ul
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B16000
(bootloader) cidnum: TELUS001
(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: dcdaa6e0
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.071s

C:\Users\\Desktop\sdk-tools\sdk-tools>


I removed IMEI MEID and Serial No
 
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I've searched high and low.

What you need - the latest HTC One M8 Telus RUU.

Why you need it - your radio firmware and possibly (probably) partition table information is completely scrambled.

HTC Canada doesn't provide any sort of open, public download for this like the US site.

Option 1 - talk directly to HTC Canada support, see if you can talk them into giving it to you. It's an HTC service tool called a rom update utility. They have it.

http://www.htc.com/ca/contact/chat/

Be very clear that you have your CID and MID (it's in the listing you gave me). If they say that they can't confirm your version - you have the bootloader version and date and the most current update version will do, even if it's the one you had previously. (As anyone qualified in RUU support will already know.)

Option 2 - take or send it to a service center.

Internet advice to unlock the bootloader, install pieces by hand - not an option, I've seen this condition before.

Sorry but there it is.
 
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If they have a corporate service center near you (sorry, not sure how Canada or Telus works) you might be able to have them run it professionally for a small fee. Maybe free depending on your phone age or contract relationship.

It'll take them the better part of an hour once they get to it.

I mention this because it works that way for my US carrier.
 
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Do RUUs ever get released over time? Like in a year or two from now? Just curious
Nope.

RUUs are either publicly released by HTC, smuggled out by employees who care, or created as a equivalent from members of the community who care (and those typically lack the full build capability of the true RUU - and require s-off because the HTC security signature will be missing).

Even if the latter case existed, it wouldn't help you in this state I'm afraid.
 
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Try unlocking the bootloader, if that works then it would factory reset the phone.
Absolutely wrong.

I'm sorry if you missed it, but his firmware is *scrambled* and no type of factory resetting is going to fix that.

Others have tried that.

It doesn't work.

That only serves to confuse the service organization.
 
Upvote 0
Hmm ok, not trying to confuse anyone.
I will agree we have a difference in opinion as far as what might or might not work. If the warranty is not in question,well then no harm no foul in my reply.
Please cite cases where you've personally seen that work on any HTCs.


I'm not as much in the mood to argue as I am looking forward to a private message explaining why you have two accounts here - we can merge those for you.
 
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