Black / Blank Screen bug? - HTC Bolt / 10 Evo Questions & Answers

Hello
From few day's my HTC Evo 10 does not shows up when pressing power button or with finger scanner, its lights shows it turn on but screen remain blank and black, nothing appear, no matter how many times you press the power button, some one made a video in youtube, when I search but couldn't find the solution,
does anyone here knows anything about it?

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Mirror Inverted Display on my HTC Touch

Hi friends..
I have a very strange problem which cropped up yesterday night, we guys had gone for a movie and my phone was in my pocket only, then coming back it started to rain and i still didn't take it out, but after i took it out in room i saw suddenly the screen going blank and so many white and blue lines started coming and it started flickering very badly! finally the display got mirror inverted! it still responds to touches at the right places but the display which i get is upside down and mirrored so can't read a thing!
i think some how a water droplet had gone inside and did something, i took out the battery and dried it under the fan too but still no change, now when i keep it on stand by and resume by short pressing power button for a second the proper screen comes and then it inverts again! please help me out if you've encountered such situation before..
i know we can turn the display upside down but this one is mirrored too, and it all happened after the screen flicker..
hav tried hard resetting ur mobile
Some Sony Ericsson mobiles had a similar problem, only way to repair it was display replacement.
How to Hard Reset?
hi friends, i read on another forums too that hardresetting is one way, so i turned the phone off
removed the battery for 5-10 seconds
replaced the battery
pressed the green and red buttons which are on the left and right of d pad
together i pressed the reset button which is to right of the usb socket,
and nothing happened! i kept pressing it for 10 seconds, and no screen popped up, when i removed the buttons it just restarted, without any screen showing that a hard reset has been desired and no change had happened..
Am i hard resetting it the right way?
ur mobile shouldnt be off while doing the above steps. After doing tat ur mobile will restart showing an warning press the action key and continue.
krazineurons said:
hi friends, i read on another forums too that hardresetting is one way, so i turned the phone off
removed the battery for 5-10 seconds
replaced the battery
pressed the green and red buttons which are on the left and right of d pad
together i pressed the reset button which is to right of the usb socket,
and nothing happened! i kept pressing it for 10 seconds, and no screen popped up, when i removed the buttons it just restarted, without any screen showing that a hard reset has been desired and no change had happened..
Am i hard resetting it the right way?
Click to expand...
Click to collapse
Device must be off. Hold red button, green button and reset. If it doesn't work, press Power. After a while white letters on black screen should appear, then press d-pad and wait about 5 minutes. You'll see a new message for a moment and Windows Mobile will start.
No change after hard reset
hi friends, i got a video on youtube demonstrating me how to do a hard reset, i did it and got the warning message too and it got reset, restoring the original settings. Still the screen remains it's own inverted self!
Any suggestions what can i do next? what can actually the problem be?
i'm taking it for service centre tomorrow. Wish me luck any ways

HTC HD Mini does not Power On

Hi to all:
I power-off my HD Mini to replace my simcard. After putting in the simcard, the battery and the cover, I press the power button. After a while, the HTC logo is displayed on the screen, then after maybe 2 seconds, the screen goes blank. I waited and waited nothing happens. I pressed the power button again and HTC logo reappeared on the screen, then screen goes blank again.
I also did hard reset by pressing the volume up and down button and the power button simultaneously but after the HD Mini restated, the problem still exists.
Is somebody out there experienced the same problem and have the solution? Thanks a lot.
u take out battery again waiting around 1 or 2 minute and put it back , turn on your phone . If same problem maybe your HTC damage.

[Q] Broken Power Button

I Know there are more threads with a broken power button but nobody has given an answer to the problem. I have a HTC Touch HD. The power button (on the top left) won't work. Usually , when you press the power button, you can feel it click, and the screen turns on and off. But now, the button just goes down when i press it, and you dont feel it "clicking". So now I can't turn it on.
Does anyone know how I can get it on or fix it?
Thanks...
Update: ive opened my mobile, so now can i see whats beneath the power button. I don't have a clue what mechanism it should have (how the click works)... How it normally looks.. any suggestions?

power on problems

I'm having power up problems.When I press the power button sometimes it will come on no problem other times nothing will happen and I'll have to push the button several times before it comes on. Other times only the buttons on the bottom will light up but nothing else. Also, sometimes when I press the button it will come on straight to the home screen without me needing to unlock it.

[BUG?] Screenfreeze on Mi 9T

Hi, I have recently purchased a Mi 9T and everything works fine with the phone, but I have this bug, that I didn't see in any post from this forum.
Every time the screens goes black (sleep), it doesn't recognize any input anymore. The phone still works and I can receive calls, notifications and so. I can turn on the camera, make screen captures, and everything, but only because I can do this with the volume and power buttons.
I tried Flashing the device, but when I get to the recovery screen of TWRP for the first time (where you need to make a swipe) the screens goes black for a second and doesn't let me do the swipe.
Any ideas of what the problem can be? (and the solution if it's possible).
If not just press the power button again ...same things happens to me, once i rebot into recovery it goes black and nothing happens, then i need to press the power button to "unlock" the screen again.
had similar experience: sometime after I lock the device (by hitting power button) and screen goes off, it input my finger on the fingerprint sensors it does not recognize and unlock (not even fingerprint animation actually). Other than this I can still hit the power button so that the screen lights up and then unlock with fingerprint.
But, this is just sometimes, not always.

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