Lenovo z90-7 vidéo problem - General Questions and Answers

I received from china m'y z90-7, unfortunatly I hear the sound of the smartphone initialisation but the screen is full of small blanck point like snow. I don't know what to do to get back à clear screen annd functional mobile. Can you help me or advise me.

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Screen hallo problem

Hi,
have you problems with backlight of the cruise ?
Mine shows great diff of luminosity to one side from another.
You can see it by taking a picture in complete dark then looking at it in "FULL SCREEN" mode.
Halo sur Touch Cruise (Polaris)
Hello,
I have the same problem ... I contacted by mail support HTC.
Amitiés
(i'm sorry, i not speak english)
toto11100 said:
Mine shows great diff of luminosity to one side from another.
You can see it by taking a picture in complete dark then looking at it in "FULL SCREEN" mode.
Click to expand...
Click to collapse
Sounds like a very special way of using the device
I call it "black monocrom with too much withe"....
It's yours for 2000$
I don't have any problems with the backlight of the Cruise.
I tried your example and no deviations on the screen.
My crap !
back to htc...
Hello,
HTC response of support (very fast!): Problem equipment, SAV return to France .... I am going to see it all ...
Amitiés

[Q] Touch Screen Calibration : How to calibrate touch screen ?

Hi,
I've just received my transformer this morning and all is good but... the touchscreen calibration is not just fine. After 1/4 of the screen there is a small offset (5mm) This is minor but quite confusing when closing a browser tab...
I tried to find a solution but cannot figured out how to calibrate touchscreen.
I have 3.1 and i have to make an update. (Cannot do it right know) I hope this will solve the problem.
I founded nonthing on this forum about this problème... Any advice ?
Thank you,
Vodnok,
well, update didn't make any progress
I will contact asus for official solution
Any solution from xda ? does am i the only one ?
Thank you
Désolé , je n'écris pas bien l'anglais donc je m'exprime en francais....
Pour calibrer ton appareil tu passes par l'application Spirit Level Pro...cela te permet de calibrer l'accélémomètre; Pour calibrer le gyroscope tu fait des 8 avec ta tablette....bien a toi
vodnok said:
Hi,
I've just received my transformer this morning and all is good but... the touchscreen calibration is not just fine. After 1/4 of the screen there is a small offset (5mm) This is minor but quite confusing when closing a browser tab...
I tried to find a solution but cannot figured out how to calibrate touchscreen.
I have 3.1 and i have to make an update. (Cannot do it right know) I hope this will solve the problem.
I founded nonthing on this forum about this problème... Any advice ?
Thank you,
Vodnok,
Click to expand...
Click to collapse
I would try killing the battery completely. The fastest way to do this is to hold the Vol - key while turning on and then let it sit. It will stay in the mode wanting you to confirm wiping the device, but it also keeps the back lite on. It will time out and then goto a blank screen and then just do the same thing again.
I bet Killing the battery will fix your issue
I'm trying this....
Just for information -> the blank screen appear when battery is nearly dead or after few minutes ?
" and then just do the same thing again." : So when blanck screen appear i have to power off and power on with vol - again ?
How many time ? Until nothing appear at boot ? (battery empty) ?
Thank you,
@micger21 : Merci mais mon problème est au niveau de la précision de l'écran tactile et non du gyroscope. Mais je ne connaissais pas l'application dont tu parles. Merci ;-)
It's taking a lot of time... 10% drain by hour....
Cannot find cpu burn like on market or looping benchmark to drain battery
EDIT : I use Samurai Vengeance II. The home screen is 3d animated and drain 20% battery on 1h30.
@18% battery... ;-)
If this operation (battery drain) doesn't work, i hope yes, does an custom rom install can solve de problem ? Or is it an hardware failure ?
so it didnt worked... Il contacted asus support If you have any other tips i stay open
I have a similar situation. There seems to be dead areas on my screen, most noticeably around the N and M and space bar. I have the Viewsonic GTab as well and it had similar problems. However the Devs here on XDA were able to figure out how to recalibrate the touch screen and it fixed everything. I tried the app found here http://forum.xda-developers.com/showthread.php?t=934500
But it doesn't seem to work for the Transformer. Here is more information on what they did
http://forum.xda-developers.com/showthread.php?t=863741
http://forum.xda-developers.com/showpost.php?p=14459432&postcount=133
vodnok said:
so it didnt worked... Il contacted asus support If you have any other tips i stay open
Click to expand...
Click to collapse
I have the same issue. Please maintain us informed about asus response. As a trick, I use the tablet rotated 180.
guevor said:
I have the same issue. Please maintain us informed about asus response. As a trick, I use the tablet rotated 180.
Click to expand...
Click to collapse
What does the rotate 180 do?
I have the same problem on mine and it's driving me crazy since I use a stylus to write, and near the bottom of the screen the shift makes writing very difficult.
Is there any way to adjust the calibration if I root my transformer?
My calibration is off too. when i play games it is about 1.5cm above where I touch. Did asus really not provide some sort of calibration tool?
I never came across this option on a capacitive touchscreen device... what you can do is download a touchscreen tester from the market to test if it is the screen or a bug in a game/app
Sent from my Transformer TF101 using xda premium
madj1 said:
I have a similar situation. There seems to be dead areas on my screen, most noticeably around the N and M and space bar. I have the Viewsonic GTab as well and it had similar problems. However the Devs here on XDA were able to figure out how to recalibrate the touch screen and it fixed everything. I tried the app found here http://forum.xda-developers.com/showthread.php?t=934500
But it doesn't seem to work for the Transformer. Here is more information on what they did
http://forum.xda-developers.com/showthread.php?t=863741
http://forum.xda-developers.com/showpost.php?p=14459432&postcount=133
Click to expand...
Click to collapse
i tried the app from your first link and it works great for me. not with the
screen-keyboard, because i use the dock for typing, but when clicking something
on the screen.

[Q] s view not sensitive

Hello,
I bought the 'created N7',
a 7 inch phablet that is like the ulefone u7/tronsmart ps7/luftco a onex/orientphone mega pro 7 etc..., and is sold by the factory with 4.4.2 installed
I found a bug in this product
The bug is about the bad working of the s-view window.
I link here a video where is possible to see how it should work:
http://youtu.be/lk1P9jziw64
The problem is that with the created N7 it is not possible to answer
to the calls without opening the flip cover:
when the N7 receive a call, the s-view window is not sensitive, so it
is not possible to answer
The sview with cover closed is sensitive only for a few seconds after the cover has ben closed, specifically only before the sview goes in standby (black screen)...after the standby, wakening the phone by a call or simply pressing the power button (without opening the cover) the sview seems not sensitive
These are two videos that shows the problem:
https://www.youtube.com/watch?v=EG6D...e_gdata_player
https://www.youtube.com/watch?v=-By6...e_gdata_player
This should be fixed, because is an important feature that is missing:
the phones like N7 of other brands (like ulefone u7/u69, luftco a-one
x, tronsmart ps7, orientphone mega pro 7) instead have a fully
functional s-view window
I already informed some created online sellers (kent wang, peter
yang... ) about this bug,
they told me that they will contact the engineer... but i have
not answer yet...i think they are not able to solve this problemi...
A seller told me that they send the leather case for free,
Its a gift , so i cannot ask them to fix this problem ��
Can someone help me to fix this problem?
I tried installing firmware of other device (luftco a onex 4.4.2)
But nothing has changed ...(and by the way i found that the luftco firmware
does not fit with my n7...the camera does not work with it)
Any hint?
Any suggestion?
I did some tests i found that actually the sview is sensitive also after the standby, but not enought to feel the touches through the screen...
in the settings there is an option 'increase touch sensitivity to allow the control through sview screen',
seems that this high sensitivity status is not reactivated if the cover is not opened after the phone goes to standby...
How can i fix this problem? perhaps some fix on touch drivers is needed?
Please help me!
Thank you!

[Q] Top screen blue. What it could be?

My best friend's Moto g, not frequently (but periodically) got this issue using apps like Facebook, Instagram and WhatsApp.
It consists in a blue status bar, but if you take a screenshot you can't see the trouble.. Only if you take a picture (as I did) you can appreciate it.
This trouble isn't permanent. If you close the app the issue stops and the screen works as it should be. Pretty weird.
What this could be? Any idea? How can we fix it?
Greetings from Santiago de Chile, the southernmost capital in the world.
(Sorry for my English and thanks in advance)
Since you said that if you take a screenshot it doesn't show up , I'm guessing it's most likely from a defective display that reacts to certain color types . He should get it looked at it if he still has warranty .
Sounds indeed like a hardware problem.
In case you are still within the warenty period I would try to get a new one.

Oneplus 8 screen shaking problem in several video games.

In several games like call of duty mobile,pubg,free fire etc when a touch input is applied to look around the screen shakes very badly for few second and then stops shaking.If I keep my finger touched the screen and continuously keep looking around,the screen keeps shaking also continuously. Take a look at the video for better understanding. I never have seen this problem before in any mobile phone. I would be really grateful if someone can tell me a way how to get rid of this bug/glitch.
My device: Oneplus 8
OS version : Oxygen os 11.0.4.4IN21AA
Problem sample: https://drive.google.com/file/d/10rFqkGrtHN5AyTOsW7HA-6JyfgAsvgSl/view?usp=drivesdk
same issue. Reported many times in OP forum no solution till now.

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