Screen remains black but calls, text messages and WhatsApp messages receivable - Huawei MediaPad M2

I bought my beloved Huawei Mediapad M2 in January 2016.
After a recent sabotage, I had to send the tab for repairs because the LCD wasn't functioning. But a few days ago, my Mediapad M2's screen flickered although I already retrieved the tab from our local Huawei authorised centre and then the screen turned off when I received a phone call from my family so I can't pick up the call because I can't see whatever that is on the screen, how to fix this without having all my data becomes wiped out again? Yes, I have a lot of work saved in this tab.
Before you ask further about memory card, thing is, nope -- I don't use any, all files are saved directly into the internal storage of the Mediapad M2. I know the tab is still working because when I tried calling my number (which is in the tab) from another phone, the tab rings. So does when messages come in. And when I plug in the headphones I can listen to music from my tab.
I want to backup my files before re-sending the tab to the service centre because they might wipe off all data again upon rectifying the issue, but before that happens, how do I suppose to do the backup when I can't even see what's shown on the screen (because the Huawei HiSuite software installed in the PC requires confirmation of the tab being connected to the PC by touching on an OK button which is supposed to show up on the tab)?
Please help, thank you in advance.

I have the same problem
Did the screen turns like grey after a while ???????

Hmmm.... this seems to be a fairly common issue, from what I can see in my searches. Most of the threads I saw in my searches (see "references" below) recommend trying the following things. DISCLAIMER: I have not tried any of these methods; you try them at your own risk.
- Try a hard reset - keep the power button pressed until the phone reboots.
- Press VOLUP + POWER and see if that fixes the issue.
- Press VOLUP+VOLDN+POWER to boot into recovery and see if that fixes the screen issue.
- Let the battery completely drain (do not charge it for a couple of days) and see if it fixes the issue (note: this is a modification of a solution where people remove the battery, let the phone sit for 10 minutes and then replace the battery. Since we cannot remove the battery on the M2, we should just drain the power).
- This may sound stupid, but give the phone a couple of smacks. If it is some loose connection in your screen connector, this may (temporarily) fix the issue.
If everything fails, you may need to take it back to the store and allow them to factory-erase it.
References:
http://www.blogtechtips.com/2015/06...arting-not-turning-on-or-boot-loop-issue-fix/
https://www.youtube.com/watch?v=ru_ab_eW5ZY
https://talk.sonymobile.com/t5/Xper...but-phone-is-still-turned-on/m-p/411513#M6943
http://thedroidguy.com/2015/08/how-...creen-is-blank-other-related-problems-1048289

I got it
So it's a problem on the flex cable that conect the motherboard to the screen, it cost like 9$.
And if when your tablet was ok you had "automatic scyn" on, when you reinstall all over again if you pay attention from what google say, it's like have your tablet with the same things.
I have this problem too

Did you already solve this problem?
I had the same issue. But you have to repair it yourself. Or have it done by someone who knows how to do it. The touchscreen is attached to the body of the tablet by a connector cable. This is probably broken.
You can order spare parts for this tablet online.
I found mine on ebay and AliExpress.
It is also possible the touch part of your screen, or the whole screen (LCD part and touch part) is broken. All parts are easily replacable!
If you need any further help on how to do this there are videos on youtube.
Good luck and I can post more specific details if necessary.

Related

Phone always has a white screen, but seems to work

Hi Forum,
I got a dash with the WM 6.1 from this great forum.
Somehow since yesterday the screen turned completely white
There was no physical impact on the phone what so ever...
When I turn the phone on, the screen is all the time white... but the phone is still working since the alarm is still ringing....
I've tried already the following:
- took the battery out for over 6 hours and tried again
- with and without sim/sd card
- to reset the phone but with no success since I cant see anything (2 softbuttons, powerbutton etc.)
- putting WM 6.5 with no success with the Error 270
- pressing and holding any button
- tipping the jagger for 3 times
- and finally hitting the phone
All these steps didnt use me anything...
I'd be gratefull for any sudgestions
Maybe the screen is just damaged and its not because of the software...
thanks a lot,
RedDot69
Hard-reset will be best option and can be done blind since it's button sequence as known then green key, i knopw that peeps have done it blind and with you spending enough time it will be sorted... The other option is bootloader and flash your stock ROM as won't get an error 270
thanks for the fast reply.
ok about the hard reset.
I hold both buttons beside green and red button then while holding i turn on the phone (power button more then 3 sec.) after it turned on i let go of the buttons and press the green button (I pressed it a several times). What after that?? will everything happen automatically??
if yes then the hard reset wont help since its still white...
unfortunately I dont have the original ROM anymore (WM5).
Do you know where I can get it??
Ok I guess I managed to hard reset this thing.
Unfortunately with no success
can anyone help?
will the problem be gone if I change the display?
RedDot69 said:
Ok I guess I managed to hard reset this thing.
Unfortunately with no success
can anyone help?
will the problem be gone if I change the display?
Click to expand...
Click to collapse
Can you sync with your PC? That's something that you haven't state in your original post.
From what you have posted in the first post, looks to me like your phone has suffered water/moisture damage. Classic white screen, nothing shows, display turns off after default timeout seconds, phone functions smoothly. For this to occur, you dont have to dunk the phone in water, phone in pocket when exposed to light rain, snow will do it.
If this is the case, the first thing you can do to salvage the phone is to remove the battery, otherwise the charge will short circuit more, leading to irreparable damage.
Second thing, try and keep it open for 24 hours or more and try ONCE more, just once, if the moisture has been evaporated. If not, remove battery again.
Next you will need to find a service center where they will dismantle the phone and physically air dry the PCB, and hopefully if it hasnt already shorted, it will come back to life.
The cost for this could vary from minimal to astronomical, depending upon which country you are in.
Do not take my words for granted, do a google for phone water damage, find out if those are your exact symptoms.
All the best.
gmaniac2008 said:
Can you sync with your PC? That's something that you haven't state in your original post.
Click to expand...
Click to collapse
yes I can. I already saved the contact list The phone is perfectly working beside the white display...
@ ccpraveen
I really dont think thats the case. Since I was sleeping on the couch, the phone's alarm went of like at 11 and it was all ok, then 30 min later the screen was all white
And the night before I left the phone at home...
Bringing the phone to some service center is out of question, since I live in Germany... If possible, I'd have to repair it my self...
By the way the Display time out works too... Somehow I got the feeling that it wouldnt use me anything to change the display
please, can no one help
RedDot69 said:
please, can no one help
Click to expand...
Click to collapse
install this on your computer http://www.mymobiler.com/
it will silently install on your s620 when it syncs with activesync and you will be able to view your screen from your computer monitor
if everything works buy a new lcd from ebay and replace it because its probably broken
--- sorry didnt want to post ---
Please skip this reply and read the next (cant delete this anymore)
ducamie said:
install this on your computer http://www.mymobiler.com/
it will silently install on your s620 when it syncs with activesync and you will be able to view your screen from your computer monitor
if everything works buy a new lcd from ebay and replace it because its probably broken
Click to expand...
Click to collapse
thanks a lot for the very usefull link
I installed the programm and I can see my display on my monitor
Then I hard reseted the phone
Installed WM6.5 from the forum successfully
But the display is still all white
If anybody thinks that the problems any way not from the display please do tell.
RedDot69 said:
thanks a lot for the very usefull link
I installed the programm and I can see my display on my monitor
Then I hard reseted the phone
Installed WM6.5 from the forum successfully
But the display is still all white
If anybody thinks that the problems any way not from the display please do tell.
Click to expand...
Click to collapse
My impression is that you have a hardware problem, maybe your screen has something loose. If you state that you will fix it by yourself, you can read the sticky on how to take apart your dash.
There are also power management settings that will turn the display white, however if it is white all the time, then it's probably hardware. Loose connections does sound possible. I'd check that first
You can try the following:
*- COMPLETELY disassemble your phone.
*- Take the PCBs apart on a table or something.
Then... take an hairdryer!!!
You have to dry your PCBs: take a PCB in your hand and do the work.
Be aware of not using TOO HOT air, or you'll melt all.
If it doesn't work, try to dry your LCD.
Doesn't work?
Okay, then the only 2 possible fixes are:
*- Replace the LCD Flex Cable if not integrated in the LCD.
*- Replace the LCD.
Hope that you'll get your phone fixed and running

550ml

Hi to all. My 3 month zenfone stop working in the widest way. The buttons Don respond and when I touch the screen it acts strange that I can't do anything. Any help, suggesting, ideas
Thanks
Can you explain little more how exactly it happened?
It seems to bIt just happen, it didn't fall, didn't got wet, nothing. I have made a factory reset something, didn't work.
It seems to be something whit the touch I can't select anything
jorgeg73 said:
It seems to bIt just happen, it didn't fall, didn't got wet, nothing. I have made a factory reset something, didn't work.
It seems to be something whit the touch I can't select anything
Click to expand...
Click to collapse
if you havnt rooted your devices and since it is only 3 months past, your phone would be in warranty period so according to me the best you should do is go to the authorized service center and just ask for a replacement
i wasnt able to sign in from my ze550ml after update so i gave my phone to the service center and replaced it with a new one a few days ago
may be this would help you out give it a try :good:
I have done that. Asus send my the RMA to Shipp it, let's see what happens after that. And no it wasn't rooted. Thanks
One thing that may cause touch screen to behave erratically is TalkBack being enabled. With TalkBack enabled the touch screen may behave differently and appear to be defective. Instead one tap it may require double tap to open an item or when swiping it may require using two fingers instead of one. Go to Apps/Settings/Accessibility/TalkBack/Off (do not turn on if already off). For more information regarding TalkBack please see http://www.asus.com/us/support/FAQ/1012384/
Sincerely
ASUS_USA

Stuck on lock screen

Wondering if someone can help. My boys nexus 7, screen is unresponsive and is stuck on the lockscreen.... It seems the problem happened after a system update downloaded(shown in the image)
Anybody any idea how to fix this
Photo
Try resetting the device by holding the power button.
You could also try to safe mode, by holding the volume down button while booting (safe mode text should appear upon bootup in the bottom left corner).
memphisuklf said:
Wondering if someone can help. My boys nexus 7, screen is unresponsive and is stuck on the lockscreen.... It seems the problem happened after a system update downloaded(shown in the image)
Anybody any idea how to fix this
Click to expand...
Click to collapse
There are at least 3 possibilities.
1. On some, the touch responsiveness decreases with the battery being drained. In other words, the lower the battery percentage, the more unresponsive the touch becomes. Reaching a certain low level of battery would kill touch completely. But this usually occurs with a tab that has had responsiveness issue all along. If it's something new that takes place only at the downloading of the update, then it might not be. Just to make sure, turn it off completely, charge it fully, then turn it on again.
2. The touch problem just occurs out of the blue. You want to make sure the hardware is not at fault. The only way to do this is to remove the back cover and reseat the two-pronged amber cable from the digitizer, and the white/silver cable connecting the daughter card to the main board. If there's a problem of this kind, no amount of software workaround will cure it.
3. The update is the culprit. If this is the case, the only thing to do would be to flash another rom (preferably a custom one that has more or less been sanitized by a known dev.
If you have a lot of data you're not willing to part with, then you can try an OTG USB mouse to navigate and allow the update to install to see if the tab would return to normal after. I wouldn't advise this route since I've heard and read a lot about people bricking the tab from taking automatic updates. Stay away from anything official if you can help it.

Galaxy Note 10.1 2014 Edition not booting up/ firmware issue

i have this awesome tablet for a good time. it's the wifi edition with 16gb black. this week i noticed when the tablet goes on rest mode, the screen turns dark (as usual) but when i want to us the tablet, the screen remains dark. i could hear the notification. i had to restart the device and quickly start using the tablet before the screen goes dark again. i noticed the message on the screen stating "firmware upgrade encountered an issue. please select recovery mode in kies and try again." i connected my tablet to my laptop and no success. i called samsung and they told me to press the vol+, power button & home key for 40 secs and nothing happened.
i am turning to the great forum to ask for help. all my stuffed are on the tablet memory. at this point i don't care about it as long as someone can help me bring my awesome tablet back to life. i never rooted it at all.
please, help me.
I'm not the most knowledgeable when it comes to this kind of thing, but I do know that on the Galaxy Note 10.1 2014 edition booting into recovery is slightly different than it is on most other Samsung devices. Where most Samsung's are power button + volume up + home key (like Samsung rep said), with the Note 10.1 2014 edition it's just the first two, power + volume up. Here is a link that will describe step by step how to do it as getting the timing right can be a little bit tricky if you have not done it before. http://mobileaddons.blogspot.com/2014/05/how-to-hard-reset-factory-reset-samsung_9205.html There is probably the same instructions here on xda somewhere if you do a search... I just googled it and that is what it gave me. If you need end up having to boot it in download mode, thats the power and volume down keys, just push and hold both (if I remember correctly). It sounds like it may have attempted to update to lollipop but the update failed for whatever reason, but I could be wrong. What exactly did the Samsung rep tell you to do? a hard reset/factory reset (which will wipe all your stuff), or did they say to attempt the update via kies? Just curious
hi thebadwrench, i followed and tried the instructions you shared and my tablet does not respond at all it stays dark and does not even respond when i plug the charger in. there are no feedback or sounds at all. i do not know what else to do.
Hmmmm. You may have a hardware failure if it is not responding to anything at all. I know others have experienced problems with the screen flickering and/or quit working as result of a loose or disconnected electrical connection internally. It might be worth removing the rear cover of your tablet to look for something like that. I don't know how comfortable you'd be with that, but it's actually pretty easy to do. I recently replaced both the battery and charging port on mine and posted some pictures in this thread here http://forum.xda-developers.com/galaxy-note-10-2014/help/q-instructions-tips-replacing-usb-t3345093 I'd just disconnect both ribbon cables and reconnect them. While your in there (and this has worked for some people) simply unplugging the battery for a few minutes then reconnect it. Kinda resets the tablet (you shouldnt lose anything saved on tablet, assuming your able to revive it). If your not comfortable with digging into your tablet, take it to a phone/electronics repair place and for a fee they could do it for you, or better yet they may be able to diagnose the problem definitively. Other than that, I'm out of ideas. Sorry to hear that your having issues, let us know what happens
I followed the steps and my screen is back on but it is stuck in recovery mode. It shows the green Android guy and says downloading but nothing for the last 10 minutes. What do I do?
Good to hear you got your screen back on. As for it being stuck in recovery mode... just to clarify, what exactly did you do to get it to the screen its on now (i. e. did you just attempt to power it on, or pwr + vol. up buttons, etc). It might be best to just send me a personal message...
How do I send you a personal message?
Just click on my username, then click "send message"

Random crashes - unless power button continuously pressed

Hello all,
after leaving the tablet for 1y I gave it another try and am seeking on one hand some general advice how to proceed, or possibly specific if somebody had that bizarre behavior or something similar.
The problem is mostly described here: https://forum.xda-developers.com/t/my-sm-t800-will-not-boot-normally.4016731/post-82060775
Now I fiddled with it a bit more and the status is:
- switching it on causes it to crash at arbitrary stages: directly after the samsung logo, while showing the lineage os logo, right when ready for using, any time later, sometimes it is even possible to use it for hours
- it works almost reliably when I keep the power button pressed
- entering download mode is possible without problems
- entering recovery mode works only sometimes, in most cases only with power button pressed continuously
- when it works "normally" I can enable dev options, connect adb and do whatever I want (as it seems)
Now since the device is fairly old, I want to avoid major investments, however I still have some hope that there is a way to fix it. However, I'm a bit ouf of ideas ...
Any suggestions how to proceed are very appreciated!
I know this reply is one month late, but I think I know the reason and fix. The exact behavior happened to my T800 but I was able to fix it after viewing this video:
It is the power connector to the motherboard, which is apparently not soldered. Once I have soldered the pins to the motherboard. All is good.

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