help, screen off, mobile ON stuck, can't reboot mate 8 - Mate 8 Q&A, Help & Troubleshooting

Hi
Mate 8 was working flawless until today, my screen seems totally Off but the mobile itself is on. I can't find a way to force thereboot as this requires the screen to be touched, anyone was a solution as there is no english manual for this device ? I see a small hole on the top that i guess is for something. Does anyone had that problem and knows hos to soft reset the phone ?

You can hold the power button for 10 seconds, for soft reset. Did you try this ?

unfortunately yes, screen remains off while mobile is on. I can recieve calls but you cant do anything as the touchscreen remains off ... I think this looks to be a hardware issue. ****, i ve paid this device 829 USD from ali baba to get it quickly and now it will take ages to get another one from them, hoping they wont make any trouble.

Try hold vol Up and power button. Chinese menu should pop up, use a camera translate with another device(i forget what is what) format clear cache.
But of course it could be your screen is toast.

Screen off, phone still on just happened to me, too. After a while it rebooted by itself. Have the phone for one day now, this is annoying the crap out of me.

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Hard Reset Dilemea

So some of you might recall that I got a fake IPhone with Windows Mobile and it was working great, but now it won't boot, it'll sit at the blue Windows Mobile screen and not advance from there. I've tried pulling the battery and it doesn't help. Obviously I'd try a hard reset but the only buttons I have are, the on/off switch, a soft reset button, a camera, some sort of back button and 2 volume buttons. I've tried a combination of those buttons and I do recall getting a blue screen a while ago but none of those combinations have worked this time.
Can anyone help?
EDIT: FIXED!!!!!! Camera+Volume Up gave me a blue screen, after that it booted! So I didn't get any sort of tri-coloured screen but the blue screen seem to have Hard Rest it maybe.
Umm, obviously this thread is sort of pointless now but if someone else has a Daxian X999 and has the same problem then this should help them.
Thanks
Seems like i'm the first to try your way of hard reset with this phone. Thanks a lot, I thought my phone is dead, and now it works perfect.
What is a "fake iphone with windows mobile"?
Chinese knockoff?
jep kinda "chinese knockoff"
but its a quite good phone, though...
i just wish it would be possible to upgrade the os to wm6.1
It works but you have to push the camera the up volume and the power key at the same time. you get a blue screen then the windows screen.
It does not work with mine. I still receive only the Windows Mobile screen.
I worked for me a few times and now it just sits at that blue windows mobile screen and then it goes to a white screen or a tri color screen. And it wont boot any further. Anybody got a idea how to get it back up. I called the place i got it from and they dont answer the phone and dont return calls. Tronicvasion is the place i got it from. Their customer service stinks. I feel like i am let hanging, kinda stinks spending 437 bux for a 1 month old phone that crapped out. But i am glad i still have my trusty Tmobile Wing tho.
have you figured out how to hard reset? it isnt working, and I cant bypass the unlock code..
Hard reset is done as explained in the 1st post here, by holding a combination of buttons and then the power button, or the reset. now you have 4 buttons plus the power button, hold the upper ones (one side camera, other side volume up) in and then press the power button. Keep the buttons pressed for a couple of seconds thou. If the phone is on, you can do the same but instead of power, press the reset.
One last thing i saw is if i hold the vol up and vol down then reset, it does not reset, but only stay on blank screen, this might be helpful for some one who's hard reset does not work.
I also suggest removing all sim and memory cards before a hard reset.
Even thou my phone is "branded" Chinese knock off I personally think it's great, and very stable
Happy to have a iphone lookalike running Micro$oft Windowzzzzzz

Daxian X999 / T32 hard reset help needed

I'm not sure how many people, if any, have experience with this phone, but I'm taking a shot in the dark because I am completely out of options here. The phone is similar to the Cect M88, and the other Cect iPhone-clones available, although I'm not sure how similar the button layout is.
I installed PCM Keyboard last night, and all was working fine until this afternoon, when all of a sudden, my phone wouldn't wake up. I ended up having to pull the battery in order to get it to restart, but then it wouldn't boot past the Windows Mobile screen (the first one - didn't even make it to the second screen).
After several attempts to hard reset (top volume button + camera button + power button), I was able to get it reset, but even though active sync was running, folders weren't showing up properly on the phone itself. I did a soft reset, and folders then showed up, but this time active sync wouldn't load on the phone. Several more soft resets did nothing, but I kept trying, and finally... the phone froze up again to the point where it hung on the Windows Mobile screen again. Now, despite all attempts, I can't even get it to hard reset. When I push all buttons from an off state, the screen will turn blue (which seems to indicate some kind of resetting is going on since it normally goes straight to the WM screen) and then a few seconds later, the Windows Mobile screen will come up and hang. I've tried every combination of buttons possible, and I've tried hard resetting probably a good 20-30 times since this happened. I've removed the SIM card, removed the SD card... I've basically tried hard resetting seemingly every way possible, and yet it still will not reset and load up WM 6.0 pro like it should.
Any ideas on how I can get this thing to at least move past the WM screen? If I'm totally unable to hard reset, what would be the next best course of action? Since this is an off-brand phone with no support or any kind of warranty, are there repair places out there that can restore the OS? Is that something I can do myself? (Phone didn't come with any software or anything.) I'm at a loss here... I really don't want to end up with a $200 blue flashlight/paperweight. I know I took my chances when I bought it, but well... this stinks.
worked
hey man i know its old and hopefully you still have your phone.. ok what you need to do is let the phone die completely so you may have to keep the blue screen on and keep turning it on till your phone does this like you i have hard reseted serveral time to no avail but when the phone died i took out the battery plugged it in to the wall charger placed the battery in the phone let the red led light by the camera light up then i turned it on and before the screen could show the splash i did the hard reset phone is aye ok !! hope this helps man.. your post helped me..
eric

Black screen & no recovery!!!!

Hi all !!! Sorry for my English but I need your help
I commented what is happening with my phone N5 (which for good and evil is always stock without root or anything, with corresponding OTA updates.)
1- Yesterday afternoon at lunchtime while reading a book in playbooks, I notice that suddenly disappears one line and then appeared intermittently. I close the app and noticed the same thing happening on the screen menu. I shut down the cell and turn on again and I thought it must be an application be kidding. But still does.
2 Also yesterday I happened to change the security on the phone screen. After a while of normal operation, try to turn it on the screen with the button, nothing, the screen goes "black", with light and retrolight turned on but no picture no nothing .
Called the cell to see if it works or is turned off and the phone rings but the screen nothing. Try turning it off and on again by holding the on / off / lock button and the phone restarts, but the screen nothing. In one such attempt to do the above it is seen that managed to turn it off. And I get it on and do a normal boot, except that the picture of my screen is changed to the original. Change the lock screen which was previously using (slip). And it seemed that out or some conflict with the lock. In one of those again pressed the ON / OFF / lock as would normally and it starts all over again.
After I magically back to life, I want to make a full wipe as I think it should be an app that is doing some conflict or something. BUT ....
3I turn off the phone and then press the keys VOLUME UP / DOWN and ON / OFF is normally off, squeezed the first screen with the options but options RECOVERY / BOOTLOADER appears in red I choose RECOVERY give the ok with the key and .... andriod robot appears with the legend below that says something (I do not remember well) without or without controls options appears. So its seems thatI dont have recovery.
After that keep pressing the key ON / OFF and the phone turns off and / or reboot normally. All this I did it again to see if the error reappears and looks that I do not have recovery.
The failure of the screen is increasing. I dont know if they are separate problems or is it all the same problem.
Sorry if I was too long but I need the help of you.
UPDATE Now it seems that the screen died, since I do not achieve to turn it on as before, the light and the retrolight its ok. The phone receives calls and notifications but the screen stills black.
Thanks all.
Matias M 73
the android laying on its back IS the atock recovery.
simms22 said:
the android laying on its back IS the atock recovery.
Click to expand...
Click to collapse
thank you simms22 but I need to fix or understand what happend with the screen first.
:good::good:
Matias M 73 said:
thank you simms22 but I need to fix or understand what happend with the screen first.
:good::good:
Click to expand...
Click to collapse
sometimes things just "derp". itll happen more often if you dont reboot your phone often. also, your phone will be a little bit more responsive if it gets reboot once a day or two.
RMA or fastboot it back to stock, if the screen doesnt turn on afterwards then it looks like a hardware issue, open device and reconnect the display.
republicano said:
RMA or fastboot it back to stock, if the screen doesnt turn on afterwards then it looks like a hardware issue, open device and reconnect the display.
Click to expand...
Click to collapse
Thank you Republicano!!
I think too that its a hardware issue. I already see on you tube problems like mine.
Thanks again!!

Mi4 Stucked in Recovery after screen replacement

Hey guys. I'm pretty desperate so i decided to make this thread.
Here is my problem:
I have changed screen on my phone today. Everything went without any problems since I tried to turn on the phone.
When I tried to turn it on I can see only MI logo on display ... Then after couple of seconds phone will restart automatically and goes into Recovery mode.
I tried to boot it from there without any results. Also tried to reset and wipe data without any results.
The biggest problem is that I cant even get into Fastboot menu by pressing Power button + volume down button. So I cant connect my phone with PC and try to flash new ROM.
Any suggestions? I would be really thankful for any advice.
Thank you very much.
roweruur said:
Hey guys. I'm pretty desperate so i decided to make this thread.
Here is my problem:
I have changed screen on my phone today. Everything went without any problems since I tried to turn on the phone.
When I tried to turn it on I can see only MI logo on display ... Then after couple of seconds phone will restart automatically and goes into Recovery mode.
I tried to boot it from there without any results. Also tried to reset and wipe data without any results.
The biggest problem is that I cant even get into Fastboot menu by pressing Power button + volume down button. So I cant connect my phone with PC and try to flash new ROM.
Any suggestions? I would be really thankful for any advice.
Thank you very much.
Click to expand...
Click to collapse
Did you follow a tutorial for replacing the screen on your device? Where did you get the screen from? Was your screen replacement just the Touch Panel or the full screen replacement with LCD + Touch Panel? Was it an actual Xiaomi part or an aftermarket part? I would take your device apart again and make sure you didn't leave something loose or disconnected.
Quick question. Was you old display still working where you could see what was going on? Like, was it just cracked or was it completely inoperable?
Sent from my Nexus 6 using XDA-Developers mobile app
Thanks for reply. Yes I followed complete tutorial on youtube. Screen is from ebay. It should be original. I replaced full screen ( lcd + touch panel ).
So found simillar problem as mine - due to improper installation of back cover volume up button was pressed which caused that phone went to recovery menu after start ... ( you have to hold volume up + power key to get to Recovery menu). So I tried to dismantle it again but it didnt help. Still have same problem.
Yes old display is alright. I can see everything just touch screen is broken so I cant do anything on it. But I cant imagine this would be problem of display ....
Give your craftsmanship and handiwork the benefit of the doubt and install your old LCD+Touch Panel and see what happens. If you have everything installed correctly with every cable connected to it proper location then you should be able to boot normally.
Sent from my Nexus 6 using XDA-Developers mobile app

u12+ black screen after PIN unlock / Device unusable

Hi everyone, I'm throwing this out there because I've run out of ideas about what has just happened to my U12+ (64gb) today.
I woke up and used my phone as normal, caught up on Twitter and the news, the usual apps etc. nothing untoward. The same routine I've had with my phone for the past 18 months of owning it with zero issues. My handset is stock OS (Android 9) and so not rooted or anything like that. Virtually all the apps I use are standard issue from the Play Store, nothing really "out there" and I have BitDefender installed to look after security. Same setup I've had for over a year. The battery was around 35% so I plugged it into my wall charger while I went off to grab some breakfast. When I returned a couple of hours later the light on the handset was green, I unplugged the charger and attempted to unlock it with my fingerprint.
The phone asked for my PIN, no big deal so I entered it. Black screen. Tapped the power button again, it requested my PIN again, I entered and... black screen. Okay, I was a little bit concerned now. I held down the power button so the haptic buzz occurred, held for 10/20/30 seconds, a minute... nothing, no restart. Tap the power button and it asks me for my PIN again and shows yet another black screen. I held down Power + Volume Down but again, nothing and no restart.
I asked someone to call me, the screen came to life and I could take the call but each time I tried to pull down the system tray in order to try and reach Settings to restart it asked me for my PIN, I entered it = black screen. The call was unaffected.
I removed my SIM + microSD card tray = same deal as above.
The phone is clearly responsive in some way and the screen does display to ask for my PIN but I can't get into it in order to reboot it. Extremely worrying.
Does anyone have any advice? At the moment I am faced with the prospect of simply allowing the battery to run out so the phone shuts down naturally but that is going to take the best part of 2 days.
I'm really disappointed because I was planning another 1-2 years use for this handset as I just bought a 1TB microSD card which has been fine in the phone for weeks so I don't think that's the cause. It is also genuine SanDisk.
Any suggestions or advice? Thanks in advance.
Hello, I hope you have made a backup with google backup recently... This does not happen often on android, but sometimes the system could have a problem. You can try this go the bootloader with the power and volume buttons , after recovery.. after apply a wipe data/ factory reset.. is will make a factory reset of your phone except the sd card. You should by fine after that and profit again.
Thanks, I appreciate your reply.
At the moment I am running the battery down until the handset switches off naturally. When it comes back on I will try to launch the phone normally, if that doesn't work I'll run the battery down again and attempt to reach the bootloader.
My photos are backed up to the cloud, I may lose some text messages but I managed to transfer the majority of my 2FA over to another Android device bar one.
At the end of the day if it's a choice between wiping it or a bricked/unusable handset then I don't really have one. What a pain.
Magimix^ said:
Thanks, I appreciate your reply.
At the moment I am running the battery down until the handset switches off naturally. When it comes back on I will try to launch the phone normally, if that doesn't work I'll run the battery down again and attempt to reach the bootloader.
My photos are backed up to the cloud, I may lose some text messages but I managed to transfer the majority of my 2FA over to another Android device bar one.
At the end of the day if it's a choice between wiping it or a bricked/unusable handset then I don't really have one. What a pain.
Click to expand...
Click to collapse
At the moment I am running the battery down until the handset switches off naturally <----- why that??? Even on a bootloop or a black screen you can reset it hold the buttons power and the volume, you can go on the bootloader.
Max128 said:
At the moment I am running the battery down until the handset switches off naturally <----- why that??? Even on a bootloop or a black screen you can reset it hold the buttons power and the volume, you can go on the bootloader.
Click to expand...
Click to collapse
The first thing I tried to do was hold down the power button or the power button in tandem with the volume buttons but the handset won't restart. I tried loads of times holding it for different amounts of time and... nothing.
Trust me, I tried.
The only way I can get the device to switch off is by draining the battery. I'm almost at 20% so it shouldn't be too much longer.
Well I already got a black screen after flashing a module magisk.. I have holding the power button and the phone have restart no problem, same thing on bootloop. You need to be sure to hold the button correctly.
Max128 said:
You need to be sure to hold the button correctly.
Click to expand...
Click to collapse
Yeah, I'm certain I was holding the buttons correctly. I tried about 20 times using different combinations just to be sure but the device would not restart. The haptic shock buttons are one of my least favourite features of the u12+, it's got to be said.
Anyway, the phone ran out of battery about 15 minutes ago. I left it alone for few minutes and switched it back on. It allowed me back in and the device appears to be fully functional again. I can unlock by thumb print, face or PIN without issue.
Basically, it's fixed. My only concern is I have no idea what caused it or if it will happen again.
Thanks for offering help though, I appreciate it. I'm not sure if this thread can be closed/locked now? I'll look into that.
Cheers.
Yes.. i love the buttons too i never got a problem with this. Great if is fixed! Maybe make a factory reset the next time.
I am wondering if the new flagship have haptic buttons too.. htc will announce it Tuesday.

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