Power on issue / Device not startable sometimes - Pixel C Q&A, Help & Troubleshooting

Moin!
There is a strange issue happened yesterday and continued today.
When power had been off I wasn't able to get get the device on again. Not even power plus volume - works. Device was charged. Power indicator lights on the back lighted. But screen stayed off - not, really off. I tried several times, now it's on but I fear it will happens again.
What can it be? Hardware defect? Kernel issue? Firmware?
I'm on current AOSP Oreo by followmsi
Kernel: tegra-3.18 171003
Magisk 14
TWRP 3.1.1-1
Firmware: smaug 7900.50.0
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Okay,
It happens always when I turn off the screen. Well, looks like an hardware defect. Damn it! It's the second one since I have an pixel c...
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Related

[HELP] no display on one x !

Hello, I have a big problem with one htc x, the display does not work anymore except the illuminated keys! if I reboot it shows nothing, I hear the ringtone start, then after a while it displays normally, but during a very short time then goes blank Do you think that's the display that is worn or is it a bug after the JB updates ? I await your response thank you
are you on stock ROM or did you use a Custom ROM?
maybee, it will help, you do a fctory reset.
getapatalked mit meinem Note 10.1 und Tapatalk HD
Benski_84 said:
are you on stock ROM or did you use a Custom ROM? maybee, it will help, you do a fctory reset. getapatalked mit meinem Note 10.1 und Tapatalk HD
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Click to collapse
I'm in stock ROM and I did a factory reset from setting Thank's
Sending it in for repair is your best shot ! You have full waranty if its on 100% stock ! :thumbup:
Mr Hofs said:
Sending it in for repair is your best shot ! You have full waranty if its on 100% stock ! :thumbup:
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Click to collapse
I have no warranty! was not representative htc here and I bought it used
Ai thats not so good, its definitely not a bug and it should not happen !!! And to be honest ... rooting and or go out and running custom roms will probably not help to remove the issue. Is it working oke when you enter the OS ? No graphic glitches or screen touch problems ?
The screen touch work normaly even when there's no display, and can call and receive calls Thank's
Well sorry .... but i can't give a solution to this i'm afraid
do you think the display should be changed or repaired?
Well can't say really , as long as its not getting worse and only happens when you boot the phone i would leave it like this, if you start having problems inside the running OS then you have a bigger problem.
Its a digitizer, display problem.... I don't think this is software related.
But even when you bought it second hand, you should have factory warranty for at least 2 years !
on my phone the motherboard was the problem...have a new phone after send in second times..first time they replaced the display...
screen was not working...after i pushed near the camera..it come sometimes up..but than screen was qwertzuzuiopüäüölkjhgf......
with kind regards
are u using stock launcher?
All things are stock
I've tried two lcd screen for one x , but it's the same probleme ! but when I press up the screen it work, and when I repress it goes black

[LT26i] Vibration gone... Need help

The vibration of my phone has gone.
I am not sure, but I think it happend after relocking the BL and flashing a stock rom.
In the past month I flashed nearly every rom and kernel, I know how to use flashtool and fastboot over ADB.
but no matter what I do, it doesn't vibrate. Except of some few seconds every now and then, it comes back.
May this be software related?
When I do a hard reset, it even doesn't vibrate when shutting down or booting up neither.
Any suggestions to fully restore hardware functions?
Thx
johnnybalboa said:
The vibration of my phone has gone.
I am not sure, but I think it happend after relocking the BL and flashing a stock rom.
In the past month I flashed nearly every rom and kernel, I know how to use flashtool and fastboot over ADB.
but no matter what I do, it doesn't vibrate. Except of some few seconds every now and then, it comes back.
May this be software related?
When I do a hard reset, it even doesn't vibrate when shutting down or booting up neither.
Any suggestions to fully restore hardware functions?
Thx
Click to expand...
Click to collapse
Open your phone keypad and dial *#*#7378423#*#*
Then go to service tests--->Vibrator and press any volume key. Then check if the phone vibrates. If it does vibrate then it is not a big problem.
Try soft reset your phone holding power button and vol+. If you vibrate stll did not work it mean it is hardware problem.
Sent from my LT28h using xda app-developers app
AW: [LT26i] Vibration gone... Need help
Thanks for the help. System test shows vibration not working, soft resetting didn't make it vibrate neither
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Odp: [LT26i] Vibration gone... Need help
johnnybalboa said:
Thanks for the help. System test shows vibration not working, soft resetting didn't make it vibrate neither
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Your phone is broken. You must send it to Sony Service.
Sent from my LT26i using xda app-developers app
AW: [LT26i] Vibration gone... Need help
I actually got it working again!
Removed the back plate and pressed a few times along the both black tape straps, thinking the vibration hardware could have moved away from it's position due to a heavy mechanical shock, like when falling down.
Finally it worked. Thanks for the suggestions!
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[Q] One X randomly simulating power button press.

My One X seems to simulate the press of the power button at random, regardless of rom, it also wakes for some reason when I touch the screen sometimes.
The power button press simulation is completely random, but usually occurs in bursts, sometimes in concentrated presses which can turn off the phone, has anyone ever had this problem, and what are the steps I should take to fix it?
ShadowOfScales said:
My One X seems to simulate the press of the power button at random, regardless of rom, it also wakes for some reason when I touch the screen sometimes.
The power button press simulation is completely random, but usually occurs in bursts, sometimes in concentrated presses which can turn off the phone, has anyone ever had this problem, and what are the steps I should take to fix it?
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Click to collapse
stock rom and stock kernel?
One-X-master said:
stock rom and stock kernel?
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Click to collapse
It occurs regardless of ROM, I've got Serenity 4.75 installed atm, but it did it on Android Revolution which the previous owner (got it from ebay) had. it may be a hardware issue, and a quite uncommon one, the device works perfectly otherwise.
It seems to have been repaired before, which may be something to do with this.
Edit: I've got the same ROM and kernel on my white One X with a cracked screen and don't have the same issue.
ShadowOfScales said:
It occurs regardless of ROM, I've got Serenity 4.75 installed atm, but it did it on Android Revolution which the previous owner (got it from ebay) had. it may be a hardware issue, and a quite uncommon one, the device works perfectly otherwise.
It seems to have been repaired before, which may be something to do with this.
Edit: I've got the same ROM and kernel on my white One X with a cracked screen and don't have the same issue.
Click to expand...
Click to collapse
Maybe hardware issue ....but try to open the phone and put the button right back in maybe its wrong in or so...but if all is normal it's an hardware issue
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One-X-master said:
Maybe hardware issue ....but try to open the phone and put the button right back in maybe its wrong in or so...but if all is normal it's an hardware issue
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Watch out when opening the volume and power buttons at quite fiddly to get back right.
Sent from my HTC One X using xda app-developers app
One-X-master said:
Maybe hardware issue ....but try to open the phone and put the button right back in maybe its wrong in or so...but if all is normal it's an hardware issue
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Click to collapse
Already tried this, it didn't have any effect, I think it's something to do with the internal button that the plastic thing we call a button presses down on.
I'd say an electrical current that runs through the replaced screen manages to somehow find where the power button-related electronics are and somehow activates it, otherwise I don't know why touching the screen can wake up the device when it's sleeping, doesn't happen on the other One X with same ROM/Kernel and settings.
ShadowOfScales said:
Already tried this, it didn't have any effect, I think it's something to do with the internal button that the plastic thing we call a button presses down on.
I'd say an electrical current that runs through the replaced screen manages to somehow find where the power button-related electronics are and somehow activates it, otherwise I don't know why touching the screen can wake up the device when it's sleeping, doesn't happen on the other One X with same ROM/Kernel and settings.
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Click to collapse
i've got this same issues on my htc desire s it was hardware issues...simply buy a new power button and change it
nothing hard

[8.4] Hard Bricked (cyanogenmod 11)

Hi, I used my tab pro. It was hanging and i turned it off. Since that, I can't turn it on again. I just tried everything and every combination of key shortcuts. I used cyanogenmod 11 without problems before.
Any ideas?
Thx
Wurlitzer
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Did you ever find a solution to this?

Phone not turning on!!

my phone isnt working! It turned off out of nowhere! It shows QHSUSB_USB when i plug it in.
bump#
try holding down the volume down and power buttons at the same time.
Assuming that works, hold down the same two keys while the phone is off and if it turns on, clear the cache from the menu.
I'm afraid it's a hard brick. Some devices can be retrieved in this state but the G4 (afaik) can't at the moment.
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nitrous² said:
I'm afraid it's a hard brick. Some devices can be retrieved in this state but the G4 (afaik) can't at the moment.
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Click to collapse
I am talking about the G4 (VS986) Verizon Wireless variant with a May 2015 build date as ever since a few days ago, everytime I uninstall and reboot, it will go into a boot loop or even safe mode and one time, it just won't turn on no matter what until I did the above hard reset except this time it did the LG logo and then the Verizon Wireless logo like it was logo and was stuck there even after 2 hours which is the reason I did the wipe cache before it would work normally.

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