Develop Bugs

[Q] rooted m8 non responsive no lights no vibration black screen

I have an HTC One M8 AT&T unlocked, rooted, ARHD 34 installed.
The other day I used the phone until about 9 AM and when I pulled it out of my pocket the very next time there was no response. I tried Volume Up + Power, Volume Down + Power, and Volume UP +Volume Down + Power no response. Tried all three again with power cord attached and still nothing. finally after about the 20th try with power attached I got a charge light to light for about a full second but then it goes off immediately. This now happens every time I plug it in. sometimes it's a full second of the charge light others it just flashes on then off immediately.
I need some help, because I am not sure what is happening and I don't want to just tear it apart and throw parts at it. I am thinking the battery took a crap on me but I need someone else to confirm my suspicions.

tsamrein said:
I have an HTC One M8 AT&T unlocked, rooted, ARHD 34 installed.
The other day I used the phone until about 9 AM and when I pulled it out of my pocket the very next time there was no response. I tried Volume Up + Power, Volume Down + Power, and Volume UP +Volume Down + Power no response. Tried all three again with power cord attached and still nothing. finally after about the 20th try with power attached I got a charge light to light for about a full second but then it goes off immediately. This now happens every time I plug it in. sometimes it's a full second of the charge light others it just flashes on then off immediately.
I need some help, because I am not sure what is happening and I don't want to just tear it apart and throw parts at it. I am thinking the battery took a crap on me but I need someone else to confirm my suspicions.
Click to expand...
Click to collapse
Have you tried using a different charger? You can also check if there is a damage on you charging port.
Try using your charger to a different phone and if it works then there is a problem with your charging port. You may want try plugging in the charger to your M8 and try to move the cable near the port. If it works, then you must charge your phone in a specific position. The best thing to do is call HTC to process RMA.

HTC 10 Does Not Turn On

This morning, I turned my phone on and it was working just fine. I put it on its charger and left it alone for about 30 minutes. When I came back, my phone seems to be dead. So far, I have tried:
Holding the power button for at least 1 minute
Holding the volume down and power button for at least one minute
Holding the volume up and power button for at least one minute
Holding both volume down and up and the power button for two minutes
All this was done while the phone was hooked up to a charger. So far, there is no activity at all. The screen doesn't turn on and I cannot connect the phone to my computer. Does anyone have any advice for this situation?

Update: There is a bad burning smell coming from the charging port and the charger, I think my phone is done for.

That doesn't sound good hoss. Might wanna try warranty?
Sent from my Y538 using XDA-Developers mobile app

HTC One M8 has died. Only charging diode glows

Hey! Few days ago my M8 has stopped working. Just picked up the phone in the morning and it was dead (didn't charge it at night). Only charging diode glows orange when the charger is plugged in.
I've checked battery voltage with multimeter and it was 4,04V. Tried to hold power button with every combination with VOL+, VOL- and still nothing... Charging icon doesn't appear on screen. I've also checked every possible connection inside and everything is OK. Do you have any suggest? I really want to rescue it cuz it's the best audio recorder I've ever had Please help:crying:

Try holding just power button for a minute or so. Or try power+vol up for a minute.
Most folks don't realize you have to hold the button for so long, in this situation (battery ran down).

redpoint73 said:
Try holding just power button for a minute or so. Or try power+vol up for a minute.
Most folks don't realize you have to hold the button for so long, in this situation (battery ran down).
Click to expand...
Click to collapse
I already tried hold every possible combination for more than 2 min.

stratocaster9724 said:
I already tried hold every possible combination for more than 2 min.
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Click to collapse
Try leaving it on the wall charger a few hours, and try again. Or try it with the charger connected.
I know you already tested the battery voltage as being good. But folks have had luck trying the various things I mentioned above. It's all you can do short of replacing the battery (which may not be the issue).

my device always red light is blinking. not open

Phone died over night, won't turn on. Any help?

My LG G7 seems to have died over night. I left it on a Qi pad to charge and after I woke up this morning, it was completely dead. I could not turn it on with the power button ow Vol- and power button. The phone shows no reaction.
I thought that I might have misplaced it on the charger (The phone is quite picky with the right spot) and plugged in my USB charger for about 10 Minutes until i tried to start it up again. No reaction. Tried Vol+ and Power and also Vol- and Power with no luck.
Then I started to investigate and plugged a USB power meter in between phone and charger.
My first try was a cabled USB connection, the power meter shows 5,1V with about 100mA (varying between 90mA and 110mA) and I left it charging for about an hour. Still no luck with any method of turning it on.
Then just to try it out, i placed it on my Qi pad with the power meter attached, which got me 9V with about 200mA, so the Qi hardware apparently is transmitting power. Also left it there for about an hour, still no luck.
I noticed some kind of buzzing sound coming from the phone while charging, if I place my ear directly on the phone. A similar but different noise is emitted by the phone when it is not charging and I hold the power button.
Does anyone here have an idea which might return the phone to life?
As I still have warranty, I consider sending it in. I have backups of the important stuff, but I would really like to avoid sending it in with all the private stuff sill on the internal memory...

What happens when ypu plug it into your pc?

+1 same problem.
Nothing show up when connecting to pc. (no mtp,adb,9008 and etc)

Long press vol- abd power button together

Atypical power / vol issue? Wont boot but lights up when plugged in.

Hey Guys,
I have a 3XL that wont boot. This phone was given to me from a friend so I don't have a lot of history on it. He told me it was working fine until it wasn't. Phone appears dead. When I plug it in, the unlocked bootloader screen appears, followed by a battery icon and then battery percentage; ~95% +. The power and vol buttons have tactile feedback and what feels like normal movement and do not appear "stuck". Holding power to boot yields nothing. Holding power plus vol down yields nothing.
I have cycled the power and vol buttons, pressed on screen and back etc as seen in some youtube videos.
Thoughts comments suggestions would be greatly appreciated!

jstein84 said:
Hey Guys,
I have a 3XL that wont boot. This phone was given to me from a friend so I don't have a lot of history on it. He told me it was working fine until it wasn't. Phone appears dead. When I plug it in, the unlocked bootloader screen appears, followed by a battery icon and then battery percentage; ~95% +. The power and vol buttons have tactile feedback and what feels like normal movement and do not appear "stuck". Holding power to boot yields nothing. Holding power plus vol down yields nothing.
I have cycled the power and vol buttons, pressed on screen and back etc as seen in some youtube videos.
Thoughts comments suggestions would be greatly appreciated!
Click to expand...
Click to collapse
Hi,
When you plug your USB cord, what's going on device manager on your computer?
Is it detected? If yes how?
Good luck...
Sébastien.

5.1 said:
Hi,
When you plug your USB cord, what's going on device manager on your computer?
Is it detected? If yes how?
Good luck...
Sébastien.
Click to expand...
Click to collapse
The first time I plugged the phone in I heard the "something was just plugged in chime" followed by "setting up your Pixel". I assumed I would be able to see its contents from the computer. Not so much. Subsequent plug ins yields the same chime but no pop ups and still unable to see it in my drives or in device manager (under portable devices).

BUMP
Any thoughts on this? Anyone have thoughts as to whether this could be a hardware or software issue?
I have seen some info on power / vol flex cable failing. Could this be the cause?

jstein84 said:
BUMP
Any thoughts on this? Anyone have thoughts as to whether this could be a hardware or software issue?
I have seen some info on power / vol flex cable failing. Could this be the cause?
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Click to collapse
Hello,
Sorry for the late reply.
Have you tried holding the power button down at least 30 seconds? Sometimes it has helped. Otherwise, I have no experience with broken buttons, I'm sorry...
Good luck...
Sébastien.

Took a gamble and decided to open the phone to look for some sort of hardware problem. Lo and behold, the power and vol flex cable was completely broken! The battery was loose. All of the movement from the battery eventually broke the flex and wireless charging antenna. I spoke to my friend who told me the screen had previously been replaced.
Let this be a lesson...always secure the battery with new adhesive! I have since ordered a new flex cable. Think the phone will be ok with a broken wireless charging cable or should I replace that too? I don't care about wireless charging.

jstein84 said:
Took a gamble and decided to open the phone to look for some sort of hardware problem. Lo and behold, the power and vol flex cable was completely broken! The battery was loose. All of the movement from the battery eventually broke the flex and wireless charging antenna. I spoke to my friend who told me the screen had previously been replaced.
Let this be a lesson...always secure the battery with new adhesive! I have since ordered a new flex cable. Think the phone will be ok with a broken wireless charging cable or should I replace that too? I don't care about wireless charging.
Click to expand...
Click to collapse
Hi,
Glad you found the culprit!
About the cable... If it's broken, I'd replace it. I don't know if some current goes through when wireless charging is not in use, but just in case.
Cheers...
Sébastien.