Hello all.
Was about to start trying to diagnose/repair this myself, but I've not really got much of an idea what I'm doing, so I thought it far better to ask people who do.
P9 lite. Locked the screen a couple of hours ago, went to wake it up, and the screen stays black. I thought it was flat, but on plugging in the charger, it's clearly actually "on" as you get the charging notification sound and the led goes red. If plugged into a computer, it recognises the "CD rom" drive and the "Huawei" drive. (although you can't access the huawei drive as it's clearly in charge only mode) If you press and hold power it vibrates briefly, and the phone appears to be acting as if it's on and working. Except the screen is black. Screen is not damaged, but just won't turn on.
It's still connected to wifi, as whatsapp web is still working. However, if you try to call the phone, it's "unavailable". Not sure if that's due to this or it would be anyway due to crappy reception.
Where should I start trying to diagnose this? I would rather not bin the phone if I can avoid it.
many thanks
and it's just done a double vibrate, indicating it's still getting push messages from various providers. Still absolutely nothing on the screen though..
David_Ru said:
Hello all.
Was about to start trying to diagnose/repair this myself, but I've not really got much of an idea what I'm doing, so I thought it far better to ask people who do.
P9 lite. Locked the screen a couple of hours ago, went to wake it up, and the screen stays black. I thought it was flat, but on plugging in the charger, it's clearly actually "on" as you get the charging notification sound and the led goes red. If plugged into a computer, it recognises the "CD rom" drive and the "Huawei" drive. (although you can't access the huawei drive as it's clearly in charge only mode) If you press and hold power it vibrates briefly, and the phone appears to be acting as if it's on and working. Except the screen is black. Screen is not damaged, but just won't turn on.
It's still connected to wifi, as whatsapp web is still working. However, if you try to call the phone, it's "unavailable". Not sure if that's due to this or it would be anyway due to crappy reception.
Where should I start trying to diagnose this? I would rather not bin the phone if I can avoid it.
many thanks
Click to expand...
Click to collapse
Can you see something on screen when you shine very bright light on it ? If yes they your's display backlight is busted.
Related
Hi,
mi n2e only with 1 week and has got frozen in the middle of a book. It doesn't respond. Soft reset doesn't work. Battery was about 50%.
I have disassembled it and try a lot of things, remove battery, connect to supply without battery... but the screen is in the same page of the book. There is no way to turn off screen.
Now with the nook connected to supply the led indicator is off and my computer doesn't detect it. This morning I got the light turned red (charging perhaps???) In this situation when I pushed button to turn off, the red changed to green for 2-3 seconds and then turned red again. And my computer detected it.
But now the light indicator is off again.
This is a gift from a friend in Usa. I live in Spain, so there is no warranty and for this reason I've tried to repair myself.
Any help, please? I'm desperate with it. I can't understand it fails in only 1 week.
Thanks.
> Soft reset doesn't work.
What do you mean by "doesn't work". It happened to me that my touch screen stucked but when I pressed "power off" button for a long time (e.g. 15 s) my nook rebooted and then if was OK.
But in you case whole system is stucked (no menu after pressing "n"), right?
Right. Whole system is out. Anything works... Now when I plug to power, there is no light on (led is off).
Hi Esfinge
Did you find a solution?
Same thing happened to me, I'm in South Africa, so can't take it back to B&N.
Got it brand new, charged it, connected to wi-fi, registered, loaded a book via Caliber (on Mac), switched off wi-fi.
The next time I picked it up it had the message that the unit is switched off and that
you have to power it up by pressing the power button on the back.
Tried removing the battery, did not help at all, also holding power button for 20 sec.
If I plug it into power the light goes green and then orange after a couple of seconds, if I connect it to a computer I can access the files on the nook.
esfinge said:
I have disassembled it and try a lot of things, remove battery, connect to supply without battery... but the screen is in the same page of the book. There is no way to turn off screen.
Click to expand...
Click to collapse
Dude, it's a e-ink screen..
When powered down it still retains its last image, it wont go blank unless told to do so.
JDRZA said:
Hi Esfinge
If I plug it into power the light goes green and then orange after a couple of seconds, if I connect it to a computer I can access the files on the nook.
Click to expand...
Click to collapse
That doesn't make sense, a powered down N2 will not mount the sdcard on your pc when connected via usb.
So if you're able to access the Nook partition while the N2 is still showing its "powered down" screen, you're in some serious trouble, as that would indicate the N2 is powered on and running, but not communicating with the e-Ink screen
So if you're able to access the Nook partition while the N2 is still showing its "powered down" screen, you're in some serious trouble, as that would indicate the N2 is powered on and running, but not communicating with the e-Ink screen [/QUOTE]
This seems to be the case, worked perfectly and then suddenly not, I might be sitting with a 'Friday' model.... anyone know where I can get a new screen?
JDRZA said:
So if you're able to access the Nook partition while the N2 is still showing its "powered down" screen, you're in some serious trouble, as that would indicate the N2 is powered on and running, but not communicating with the e-Ink screen
Click to expand...
Click to collapse
This seems to be the case, worked perfectly and then suddenly not, I might be sitting with a 'Friday' model.... anyone know where I can get a new screen?[/QUOTE]
Screen is black blank, hasnt came back since it first shut off after the first or second reboot on the first try restoring it to 1.4.3. The Screen was working fine before I used it everyday then i wanted to switch roms from phirmod 7.1 to NookieJoyOS it worked but the wifey didnt like it. She wanted her original nook color back. So I went back to original stock rom and then i started having problems. At first i though i had formatted something wrong in cw3.0.2.8. Above I was stating scenarios in threads i was reading on what possibly happened.
dbole said:
This seems to be the case, worked perfectly and then suddenly not, I might be sitting with a 'Friday' model.... anyone know where I can get a new screen?
Click to expand...
Click to collapse
I recently got an NST screen/digitizer for ~$40US on eBay, it took 5minutes to replace it.
I was on my computer when i remembered i has something written in my tablet's notes that was important. I took it out of my bag and noticed it wouldn't turn on, it was out of battery (hadn't touched it for about a week). I just plugged it in the proper asus charger and put it down and went straight back on my computer.
I decide to check on it after 2 hours thinking it would be near or fully charged. I pick it up and noticed it was on a blank back lit screen. I unplugged it and then the screen turned straight off. Wondering if it didn't charge at all i re-plugged it in. There was no google logo (rooted), instead it turn on with a lit black screen and off and repeating a few times and then small thin artifact pixels run across the screen (red, blue and yellowy colours) and then stay at a black lit screen like when i first picked it up. I had just noticed a small buzzing sound while this was happening and still does so when stuck at the screen. I'm pretty sure it was buzzing when i had found it.
I redid what i had done (unplug, replug) and watch to see if it did the same thing. It did. I tried to power it off while it was at the black screen and it did, but then it would turn back on and etc. Same if i tried to enter boot loader or any key combinations.
I've tried disconnecting the battery and reconnecting and same effect (tried it without battery attached also)
I have a feeling it is dead now and i have no other ideas (checked many forums but got nothing).
Any help would be appreciated.
yvgamer94 said:
I have a feeling it is dead now and i have no other ideas (checked many forums but got nothing).
Any help would be appreciated.
Click to expand...
Click to collapse
It's surely hardware failure, have take some humidity or something like that?
Try press power for 60 seconds, if you wont see any Google logo there's some hardware failure you need to RMA ( http://en.wikipedia.org/wiki/Return_merchandise_authorization )
found the fix
I found away to fix my nexus 7. You could be right how it might have a minor hardware fault, live in australia in the high hot tropics (high humidity). I decide just to plug it into my computer usb charger instead of the proper charger since it had a lower max amp output. Against my ear, a much fainter buzzing is still heard but this time, there was nothing. No power, no back lit black screen, just a very faint buzzing. Decided to let it sit just to see what happens. After an hour or so, i decided to press the power button and noticed there was a battery charging signal. To my delight, I'm sure it was in working order now so i powered it on and oh how relieved i was.
I determined that my device might have had a small hardware fault that made it draw to much power from the 2 amp original charger and thus why the tablet could not boot up properly (from battery depletion). Either that or my charger could be bugged to. But the thing is, since it charged to slow from the usb, i plugged in the proper charger and it worked fine. Just have to try not deplete my battery i guess.
Thanks.
Hello everybody. I'm new here, I came seeking desperately for help.
This morning, my NST have fallen from the table. In the past 3 years, I have dropped it a couple of times before. But today, when I picked it up, the screen was frozen, but it was displaying a page in the left 2/3 of the screen, while the remaining 1/3 displayed a different page. The screen was frozen.
I turned the device off (with the upper back button) and the screen went white, but I couldn't turn it on again. I plugged it to charge the battery. The orange light was on, and then turned to green, but still couldn't get any response by pressing any of the 2 buttons. When I plug it to the computer, I can acces the micro sd and the Nook's memory.
I've readed similar posts in this forum and I'm afraid it's simply broken, but I wanted to ask anyway.
Any suggestions?
Thanks.
*Ruska* said:
Hello everybody. I'm new here, I came seeking desperately for help.
This morning, my NST have fallen from the table. In the past 3 years, I have dropped it a couple of times before. But today, when I picked it up, the screen was frozen, but it was displaying a page in the left 2/3 of the screen, while the remaining 1/3 displayed a different page. The screen was frozen.
I turned the device off (with the upper back button) and the screen went white, but I couldn't turn it on again. I plugged it to charge the battery. The orange light was on, and then turned to green, but still couldn't get any response by pressing any of the 2 buttons. When I plug it to the computer, I can acces the micro sd and the Nook's memory.
I've readed similar posts in this forum and I'm afraid it's simply broken, but I wanted to ask anyway.
Any suggestions?
Thanks.
Click to expand...
Click to collapse
Your first description makes it sound like something in the display is broken
You say you turned it off with the back button, but what you really mean, I guess, is that the screen cleared completely? In other words did you get the little window that asks whether you want to shut down, or did the screen just blank?
If it really is shut down, plugging in the power supply should cause it to boot. If you plug in the power supply and nothing happens (no window saying it's charging?) then it may be on already or the display is simply broken and there's no telling what's going on.
When you say you can access the Nook's memory, do you mean you can see the internal storage? So the "drive" is mounting when USB is connected? If you have ADB access you could try to reboot that way.
I'm at a lost and the only other thing I can think of is to open it up, disconnect the battery for a bit, and then reconnect. But dropping repeatedly is not a good practice.
Thank you very much for answering, nmyshkin.
Now that you mentioned it, the display never asked if I wanted to turn the system off. It just went blank when I pressed the button... It shows no message when charging neither.
I can access the internal storage. I have no idea what ADB is (I'm quite illiterate in this matter) but I could search in the forum.
I wanted to open it, but I don't have the screwdriver for that weird screw the Nook has. Maybe I'll try it later, if I can find the tools, but I'm afraid it's gone... u_u
I know it's just a $70 reader, but I cannot buy it in my country and it was also a gift, so I'm very found to it.
Thank you again.
Tonight, my turbo 2 started acting up. I pulled it out to make a call, and the top 1/2 inch of my screen was flickering purple. That went away after about an hour, but then the whole screen went black and unresponsive. After trying to shut it off and reboot for a bit, it just randomly started working again. Full battery. Everything works, except the top 1/2 inch of display is completely black, every now and then, it will be green. If the phone sleeps, even for a second, it won't come back on, for about an hour, then it will randomly start working again. Never got wet, or dropped. Any body had an issue like this?
There's a known issue with a green line on the screen, I believe the speculation is a bad batch of screens got out, you're gonna have to exchange it for a new phone.
I am currently having this same issue. Going to VZ today to see about resolving it, as really hard to do anything when its doing that. Top 1/2 or more of the screen is flickering purple, then the screen will not let you turn up the brightness, all programing in the back works, just a LED issue. Restarted and same thing, let it charge Off all night, and back to normal after a few minutes using it. Very odd, not sure what is going on.
I have a similar issue, and I am trying to recover some data from mine. It seems booting into bootloader mode and using ADB yields nothing
I also cannot use MTP, as when I plug my phone in it's not in MTP mode for some reason, and i Can't see how to turn it on (screen is black). Digitizer still works. Does anyone have any suggestions? Can someone here maybe take a video of themselves plugging the phone in via USB and then selecting MTP on the phone? perhaps I can do it blindly...
Really don't want to give this phone back to vz until I get my data off of it.
About eight hours of pissing and moaning and I finally figured out:
Using the replacement phone, I just mimicked every movement on the one with the dead screen. I hit the "cast" button on the notifications panel and casted the screen to my chromecast, which in turn allowed me to set up MTP mode and/or anything else I wanted.
Cheers, hope this helps someone
My phone suddenly turned off and now only the notification light blinks three (blue, green and red) colors and doesn't turn on.
I have already tried all button combinations, it doesn't turn on.
Please help.
Same here, except on my side my huawei slowly struggled to boot up on android and EMUI each time i've booted it up- in other cases even being in a bootloop or stuck at the startup animation.
Few of the times i was able to successfully get there, most of my phone's pics used to get corrupt without doing anything, and yet was becoming slower each time.
Nowadays it's in the same conditions.
Tried every combination too, same LED reaction.
One day i even attempted to tear it apart and try to unplug and plug back the battery:
yet nothing. Phone wasn't working.
Never did anything particular to it (ex. rooting, flashing) since i used it normally.
I'm afraid the SoC died, the partitions screwed up, or idk.
Hope there is a way to save it without resorting to buy new components.