sos help: phone is dead - Huawei Mate 9 Questions & Answers

hi guys, my phone is dead. Vol Up+power doens't turn on. It doen'st show any sign when charging the batterie either. computer doesn't detect anything when plug it in. I was just simply browsing on my phone and suddenly black out. and that's it. What may be the problem? any help? any one have had experienced before?

if nothink works only test point can help, u need open phone and do it.

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HELP!! My One X won´t turn on =(

someone out there, please help me. Today when I went out to work I was playing with my phone and then put it away while I was driving. When I got back to it I tried to turn it on but it would not turn on, so I keep the On key pressed for a few seconds and then it turns on.
So I thought maybe the phone needed a restart, so I did. I pressed the On key for a second and then selected "Restart". and it never started back again. I´ve been trying to press the on key for like 1 minute a nothing shows up, I connect it to the charger and the charging led doesn´t light up.
When I connect it to my computer, it seems to recognize something in the task manager as it says "Unknown Device"
Anybody knows a method to make it boot? like a typical "battery Pull"?
Try holding Power key for 10 seconds?
Kenchinito said:
someone out there, please help me. Today when I went out to work I was playing with my phone and then put it away while I was driving. When I got back to it I tried to turn it on but it would not turn on, so I keep the On key pressed for a few seconds and then it turns on.
So I thought maybe the phone needed a restart, so I did. I pressed the On key for a second and then selected "Restart". and it never started back again. I´ve been trying to press the on key for like 1 minute a nothing shows up, I connect it to the charger and the charging led doesn´t light up.
When I connect it to my computer, it seems to recognize something in the task manager as it says "Unknown Device"
Anybody knows a method to make it boot? like a typical "battery Pull"?
Click to expand...
Click to collapse
elsupermang said:
Try holding Power key for 10 seconds?
Click to expand...
Click to collapse
This ^^. or try to boot into recovery (hold volume down, then press and hold power, hold both until the three androids appear. then use volume down to select "reboot"
thanks for the reply, I just tried that and nothing, no light, no led. The capacitive buttons don´t light up either. =(
Try leaving it plugged in for awhile to make sure it's charged before you try to reboot into recovery?
lilhyper said:
Try leaving it plugged in for awhile to make sure it's charged before you try to reboot into recovery?
Click to expand...
Click to collapse
And be sure to use the wall charger as well.
cranch said:
And be sure to use the wall charger as well.
Click to expand...
Click to collapse
ditto, wall charger, it will come back on after it charges for a bit.
I´ll try leaving it charged for a while. will post back with the results
I was thinking an thought. With android, sometimes the phones just get messed around too much. When I had my galaxy nexus, everytime i meet a freeze or something, I just pull the battery and reboot the phone. If the phone is messed up and wont boot. I can still just pull the battery, put it in, and boot into recovery. Now, is there any safe way to do all of this? I am worried about the One X, and still am debating between this and the note, reason being I flash a lot and dunno wat i can do if i really just mess up my phone. Anyone have any ideas?
Kevin Ma said:
I was thinking an thought. With android, sometimes the phones just get messed around too much. When I had my galaxy nexus, everytime i meet a freeze or something, I just pull the battery and reboot the phone. If the phone is messed up and wont boot. I can still just pull the battery, put it in, and boot into recovery. Now, is there any safe way to do all of this? I am worried about the One X, and still am debating between this and the note, reason being I flash a lot and dunno wat i can do if i really just mess up my phone. Anyone have any ideas?
Click to expand...
Click to collapse
If you hold down the power button for 10 seconds it will hard reset the phone. This is exactly the same behavior as the iPhone and other phones with a non-removable battery.
Kenchinito said:
someone out there, please help me. Today when I went out to work I was playing with my phone and then put it away while I was driving. When I got back to it I tried to turn it on but it would not turn on, so I keep the On key pressed for a few seconds and then it turns on.
So I thought maybe the phone needed a restart, so I did. I pressed the On key for a second and then selected "Restart". and it never started back again. I´ve been trying to press the on key for like 1 minute a nothing shows up, I connect it to the charger and the charging led doesn´t light up.
When I connect it to my computer, it seems to recognize something in the task manager as it says "Unknown Device"
Anybody knows a method to make it boot? like a typical "battery Pull"?
Click to expand...
Click to collapse
I have the same problem, when I charge it the charging indicator doesn't even turn red or green. I tried a wall charger as well as connecting it to my computer. I tried holding the power button for 10 secs, also while holding down the volume down button. Nothing works. I'm going to call HTC tomorrow, and might need to bring it back to the shop.
It always seems a bit finicky to turn on for me. I still have no idea how exactly to turn it on, I jus randomly press the button until it turns on.
Try holding down the power + volume down button.

Can't power on my Tf700 - power button not working

Hi everyone,
Today i faced a problem with my tf700T, i tried to power it on but i couldn't.
I tried all the following steps but with no luck at all:
1. Normal press on power button, nothing happens.
2. Cold reset (pressing power & volume down buttons for very long time), nothing at all (no vibrations, not a single sign of life).
3. pressing reset button. nothing
4. suspecting that it's a screen problem. i pressed volume down/up , but no vibration occurs (i.e. the tablet is not turned on)
The tablet is fully charged, when i connect it to the charger the led shows green light.
I tried to connect it also using usb cable to a pc (led doesn't show any light) and left it for hours. tried to power on again, but no luck. Needless to mention that it's not detected by pc also, since it's turned off.
Now i am out of ideas, i can't think of anything else to do.
If anyone can help me with anything to try, i will be very thankful.
Thanks
PS: i searched before posting this thread but i didn't find a relevant post. If there's a similar post, please guide me to it and i apologize for duplicating it.
bahaahamza said:
Hi everyone,
Today i faced a problem with my tf700T, i tried to power it on but i couldn't.
I tried all the following steps but with no luck at all:
1. Normal press on power button, nothing happens.
2. Cold reset (pressing power & volume down buttons for very long time), nothing at all (no vibrations, not a single sign of life).
3. pressing reset button. nothing
4. suspecting that it's a screen problem. i pressed volume down/up , but no vibration occurs (i.e. the tablet is not turned on)
The tablet is fully charged, when i connect it to the charger the led shows green light.
I tried to connect it also using usb cable to a pc (led doesn't show any light) and left it for hours. tried to power on again, but no luck. Needless to mention that it's not detected by pc also, since it's turned off.
Now i am out of ideas, i can't think of anything else to do.
If anyone can help me with anything to try, i will be very thankful.
Thanks
PS: i searched before posting this thread but i didn't find a relevant post. If there's a similar post, please guide me to it and i apologize for duplicating it.
Click to expand...
Click to collapse
I think you alredy tried everything in the book. It's time to send it out for repair. Note: Even some how it turn itself back on later, I still recommend to send it out, because it's not NORMAL at all, possible defective Power button, main board etc...
buhohitr said:
I think you alredy tried everything in the book. It's time to send it out for repair. Note: Even some how it turn itself back on later, I still recommend to send it out, because it's not NORMAL at all, possible defective Power button, main board etc...
Click to expand...
Click to collapse
Thank you, i wanted to make sure i didn't miss anything. I will contact their support.
But i'm curious about "turning itself back on later", do you know how could this happen and how much does it take to occur ?

OnePlus One dead!!!

Hey guys,
i have a really big problem with my lovely one.
Before three hours i checked my screen the last time, everything cool,
70 percent battery, no problem everything working like its usual.
But ut now i tried to get it out off stand by but it isnt showing any reaction.
I tried to double tap wake up, normal stand by button wake up, wake up through
connecting to my original oneplus charger/cable nothing happened and at least
connecting it to my mac. And off course i tried to do volume down stand by button and so on.
It won´t even show the notification led when i am pluging it in, please help me guys,
what happened to my phone? Can i rescue it?
Try holding the power button until it reboots (max. 60sec). If that does not work, connect it to a charger and just let it charge for up to 24h (until it show something).
Tried it, didn´t worked.
Now i am trying to charge it for a day.
:/
First try to connect to a win PC and if nothing happens press POWER+VolUp for 30 secs (until vibrate), maybe it somehow bricked itself. If it connects as QHSUSB_BULK it bricked itself (can be fixed)
Okay tried to connect it on my other computer. It didn´t showed any led light on my device but the pc tried to search a driver software but no luck. Paralel i tried to connect the opo from my brother, no problem everything cool. But mine is somehow, dead.
And the volume up and stand by didnt helped :/
Leave the phone connected to an AC charger for 24 hours, do not touch it at all during this time, after 24 hours try to turn it on again.
Transmitted via Bacon
See a lot of these
What causes this problem with the OPO?
Its comforting to know that it can be recovered from most everything thrown at it though.
oODMASTEROo said:
Okay tried to connect it on my other computer. It didn´t showed any led light on my device but the pc tried to search a driver software but no luck. Paralel i tried to connect the opo from my brother, no problem everything cool. But mine is somehow, dead.
And the volume up and stand by didnt helped :/
Click to expand...
Click to collapse
What was the name of the device it was searching the driver for?
It didn´t told me just searching driver software for usb device. Nothing more

My phone looks dead

I was in fastboot mode ready to unlock my bootloader, the phone got the led in a blue color when suddenly the led turned off.
I dont know what happenden but the phone looks dead.
The screen its black and the led its off, i got no reaction to anything except when i connect the phone to my pc, the pc tells me its an unkown device. help please.
I allready tryied the volume up and power button and also i tryied to get again in fastboot mode but it doesnt work.
Chacho3993 said:
I was in fastboot mode ready to unlock my bootloader, the phone got the led in a blue color when suddenly the led turned off.
I dont know what happenden but the phone looks dead.
The screen its black and the led its off, i got no reaction to anything except when i connect the phone to my pc, the pc tells me its an unkown device. help please.
I allready tryied the volume up and power button and also i tryied to get again in fastboot mode but it doesnt work.
Click to expand...
Click to collapse
try to put it on charge by plug in to a normal electric socket and check the device reaction.
If you get positive reaction which means LED ON , or battery recharge etc then you are good to go in to the next level which means...
Plug your device in to your PC/laptop. If it gets again with "not recognizing" try different USB port.
If all the ports showing you the same problem, try to find another cable. If you get again the same problem try to find another PC to test if there is recognizable.
these are the first steps you should so before i suggest you anything else. We have to make sure that your device is in a working state.

Cenovo mini pc 2 bios reset

Hello people
I made some settings on cenovo mini pc 2 bios and now i have no video exit on hdmi.
When i turn on, looks like working but nothing on tv
The cenovo support don't answer my email
I need to reset bios to defaults
I disconnect the battery for days but nothing...
any help on this?
thanks
Same thing happened to me. What I did was disconnect the battery. Plug in the power while holding the power button for around 10 seconds (maybe more) until the blue light went off. After taking my finger off the power button, I pressed and held the button until the blue light came on and the sucker booted up. Hope that helps.
MWA.
Anybody know how to set the bios to auto start when I plug in? Without physically pressing the power on button? No normal bios configuration that I can see? Any help greatly appreciated
Nikolarasbig said:
Hello people
I made some settings on cenovo mini pc 2 bios and now i have no video exit on hdmi.
When i turn on, looks like working but nothing on tv
The cenovo support don't answer my email
I need to reset bios to defaults
I disconnect the battery for days but nothing...
any help on this?
thanks
Click to expand...
Click to collapse
manderson38 said:
Same thing happened to me. What I did was disconnect the battery. Plug in the power while holding the power button for around 10 seconds (maybe more) until the blue light went off. After taking my finger off the power button, I pressed and held the button until the blue light came on and the sucker booted up. Hope that helps.
MWA.
Click to expand...
Click to collapse
Nikolarasbig said:
Hello people
I made some settings on cenovo mini pc 2 bios and now i have no video exit on hdmi.
When i turn on, looks like working but nothing on tv
The cenovo support don't answer my email
I need to reset bios to defaults
I disconnect the battery for days but nothing...
any help on this?
thanks
Click to expand...
Click to collapse
I also change som video setting in BIOS and had no video on HDMI output.
It is possible to reset it, but I can not tell yuo how. I already did it two times, but each time after two hours of experimentation. You have to play with power button (long holding and clicking) after unplug and plug again power cable. Getting red light is definitely step towards success. I hold your thumbs.
Also need to reset my bios, since my unit is not booting properly, blue led keeps blinking.
Any suggestion?
No boot cenovo minipc blinking led
geoair said:
Also need to reset my bios, since my unit is not booting properly, blue led keeps blinking.
Any suggestion?
Click to expand...
Click to collapse
Hello.
I am the same prblem. No boot, no signal, no bios.
I press 3s and it blinks blue.
I support about 8s that goes off.
i can do nothing more ...
vernvex said:
Hello.
I am the same prblem. No boot, no signal, no bios.
I press 3s and it blinks blue.
I support about 8s that goes off.
i can do nothing more ...
Click to expand...
Click to collapse
Did you solve your problem?
geoair said:
Did you solve your problem?
Click to expand...
Click to collapse
Hello. The pc has restarted. I left it unplugged at night, and in the morning I turned it on and it worked.
vernvex said:
Hello. The pc has restarted. I left it unplugged at night, and in the morning I turned it on and it worked.
Click to expand...
Click to collapse
Have to try that, mine has been unplugged for several weeks now
Hi guys, made a similar mistake apparently.
Story:
Tried to reuse that Cenovo Mini PC II as ioBroker server for smart home.
Installed CentOS 7 onto it, install went fine, first boot = Kernel issue.
Installed Ubuntu 18.04 live server, all went through, first boot = Errors a la "Cannot enable port 1. Maybe the USB cable is bad".
Now i have no USB enabed and therefor i cant use a keyboard and do nothing.
Tried a BIOS setting found in a launchpad, now apparently the system boots very well in Ubuntu till Login screen = but no USB keyboard. Cannot do anything, as SSHD isnt running yet.
xHCI handoff - Disabled
EHCI handoff - Disabled
Click to expand...
Click to collapse
Apparently i disabled something i shouldnt have done.
The tips on resetting the BIOS in this thread here didnt helped yet.
Did anyone come across the actual repeatable way of resetting the BIOS on that Cenovo?
Unfortunately, I’m in the same situation. Does some of you maybe have some tips how to reset the cmos? Already tried by holding the powerbutton & pressing some times, but without success. Hope somebody had a magic tip for me.
Thank your very much!
Regards, Tom

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