Ok, this is going to be really weird, because I've never had this happen on an Android device before and I've had plenty of them.
My wife has a BNTV650 tablet that appears to really want to be used to take pictures.
The device is 100% stock and is running Android 8.1.0, Security Patch October 5, 2018.
We've had it for a while now, and as the cheaper tablets tend to do, the charging port went funky, which I imagine has something to do with the behemoth of a micro-usb cable that BN includes with it. It would only charge if the cable was leaning towards the front of the tablet, which as you can imagine is not ideal for anyone. So we got the dock to use for charging.
But lately, apparently completely randomly, the tablet will turn itself on and open the camera app. I've checked the volume key shortcuts and there's nothing installed that can use them. This happens when docked and when not docked, and is increasing in frequency as time goes on.
There is no physical damage to the tablet, and I can't think of a touch combination that would both bring the tablet out of sleep and open the camera. It only happens when the tablet is asleep and has been left for at least 60 seconds, and it can take up to 45 minutes to happen.
I'm kind of at my wit's end with this, and any suggestions would be greatly appreciated.
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Last night I had my tablet propped up while I was watching a video. Then within a blink of an eye it fell and smacked down flat against the table. When this happened the screen when black immediately. I have not seen any activity from the screen since the fall. The power butto does not turn the tablet on. I connected it to my pc and device does not appear. When plugged in it does charge.
I'm completely panicked. I just purchased it in March off of Woot. Anyone have any suggestions? I'm all ears at this point.
Thanks in advance.
mt251401 said:
Last night I had my tablet propped up while I was watching a video. Then within a blink of an eye it fell and smacked down flat against the table. When this happened the screen when black immediately. I have not seen any activity from the screen since the fall. The power butto does not turn the tablet on. I connected it to my pc and device does not appear. When plugged in it does charge.
I'm completely panicked. I just purchased it in March off of Woot. Anyone have any suggestions? I'm all ears at this point.
Thanks in advance.
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Sorry to hear that.
Any outword physical damage? If not, sounds like a good time to exercise the warranty process! I wouldn't tell them you dropped it...you just tried to turn it on & nothing!!!
Without actually opening the device & checking to see if something didn't pop loose, that is probably your best recourse.
If you do get it working, in the future you probably want to invest in a stand. My wife collect plates...I use one of her plate stands...it puts the gTablet at the perfect viewing angle, it keep the tab from falling/slipping, it's cheap, & it works.
Al
No physical damage.
I am thinking of opening it up, but wanted to evaluate all options first.
Anyone have any luck with Viewsonic and their warranty?
Its fixed! Just got hole and decided to open it up which was fairly easy to do with a small screwdriver and a credit card. Unplugged the big white screen coupler and plugged it back in and VOILA! She is back in business. Whew that was scary
I accidentally bumped a cup of coffee over on the back of my HTC Evo 4g LTE. I bumped a pillow into the nightstand while trying to contort my body in a way that would let me set sleeping my 10mo old into bed without waking him
I turned off the phone immediately, took off my Otterbox Commuter case (not the really waterproof Defender) and found a thin liquid coating on the back housing. Perhaps 1-2hrs later I made the poor estimate that it wasn't "that bad" and tried turning it on. The phone went into what I think was a boot loop (the display never showed anything, so I can't be sure), vibrating every ~30sec as it would if it were constantly trying to turn on and failing. It doesn't have a battery designed for removal, so I just had to let it sit.
Perhaps 6hrs later I went to check on it, and thought it was unresponsive after pressing the power button and nothing appeared to happen. I inadvertently pushed the volume rocker, however, at which point it made a beep as though it were adjusting the volume! After that, I noticed that the power button was also toggling the capacitive navigation buttons, which would illuminate and shut off as if the phone was "running" as well... but I still had no display.
Since then I've done a complete teardown (pop off all cases, separate all ribbon cables, vibration motor, speakers, camera, and removed the battery). I've done a few washes/brief soaks in isopropyl with the motherboard and then put everything in a vacuum chamber overnight at -20 inches of mercury. I also set the display and motherboard it in DriRite (lab-grate dessicant) for about a week now. In the meantime, I assumed the display may have been fried and ordered a replacement since it was only $28 on ebay. I just got it yesterday, but get the same results (phone "turns on," but display never lights up).
Any input on troubleshooting further?
- I've thought about looking at the two ribbon connector receivers for the display under a microscope to see if I can see any residue.
- I've also considered opening my wife's phone (same model) and swapping the batteries based on a probably false idea that if the battery might have gotten zapped, it could power the rest of the phone but not the display? Thinking not, as the power-ups I've attempted have had the USB charger plugged in, but easy experiment.
Would it be possible to short out just something related to the display on the motherboard so that the phone could run seemingly perfectly fine but just with no display? Just seemed so darn unlikely and that if I toasted some circuitry that a lot more would have been toasted in the process.
I plan to reassemble tonight and test for call reception (I think I can guess where the answer button is) and notifications (email myself and see if I get a vibrate/beep). That would confirm that the radios are also still functional.
Sort of at a loss and am not sure what else to do! I'm an engineer and even if the phone is toast... I'd really love to definitively figure out what's causing the issue.
Hi. My name is Grayson Peddie and I am having a major problem with my tablet dock. My smartphone is working just fine. There are no damages to either the tablet or the dock. I would also say that the internals of the smartphone is fine, too, but about the tablet, here goes my explanation:
I purchased ASUS PadFone X as of July 1, 2014 and received it a couple of days later and I loved it. The tablet dock worked meaning my smartphone vibrated when plugged into the dock until now, when the dock starts to become less responsive (meaning the backlight stays on after a phone is removed) and then it went dead on me with no light turning on when plugged into a dedicated USB charger. But before the dock went dead on me, recently (probably yesterday) the buttons in the dock stopped working even though the screen is on. So after the light and the screen won't come on, when I plug my smartphone into the dock, it's not vibrating. I remove my smartphone from the dock and I saw a spinning circle (dynamic display kicking in) until I see my Android home screen; the smartphone's Android screen switched on quickly.
So my question is, is there anyway to get my dock repaired? I don't want to send in my smartphone for replacement. Ugh... I have never need to send my Nexus 4 and 7 for replacement in the past...
(Update: "To prevent spam to the forums, new users must wait five minutes between posts. All new user accounts will be verified by moderators before this restriction is removed." Well, I've been a member since... 2012 but I haven't been there for so long... Must wait 5 minutes before I mark my thread as solved...)
Was your device rooted, did you disable any apps?
8125Omnimax said:
Was your device rooted, did you disable any apps?
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No, not rooted, but I did disable Browser Bar... I don't know what that is for... A couple of weeks ago, I have also disabled a couple of AT&T applications that I don't care for (FamilyMap, Locker, and Mobile Locate) and Beats Music. I'm not sure if a Browser Bar is an AT&T application, though...
But then I don't think disabled applications have anything to do with my docking tablet. The light won't come on at all when plugged into a USB charger, let alone smartphone not vibrating when docked.
I found a problem! If you drop a tablet dock, the back cover can become unsnapped even though it stays intact. Once I squeeze the back of my tablet near the center of the dock, lo and behold! The red light came on with the USB plugged in! I docked my smartphone into my tablet dock! My phone vibrated! The screen came on! YES! It's working!!!
Okay, so what I can say is this: Due to the lack of build quality of PadFone X Dock, care must be taken to not drop the tablet, or the dock will not work after a few days of use. Had I mentioned that I dropped my tablet once, I would have gotten an obvious response that I should not drop my tablet in the first place. Well, I've dropped my Nexus 7 tablet and Nexus 4 smartphone a couple of times and it is still working! Even my PadFone X smartphone, so why not the dock? I'm so embarrassed that I've started my thread about my issue. Embarrassing.
So I bought my phone from AT&T just as the new M8 was coming out (got a good deal as a result) and ever since that day its been dependable, efficient, and never lagged a single second.
But then the HTC Sense 6 ROM started to act up, opengl issues, and various bugs that drove me insane! So I switched to CM11, (btw no IR or radio or hardware encoding support on it) and all went well until about 2 weeks ago.
Suddenly my phone is sluggish at times, especially on switching applications, and the battery life went from around 10 hours average usage, to 5... Now its down to 3... Not only that but the phone is HOT!
If I even watch a Twitch stream, or YT video, or play a game, or even navigation, camera, chrome, anything with it (including listening to music), the device gets to 43 degrees C. That is with the device out in the air, passively cooling.
If I leave it on a surface, with the back covered up (like in my pocket, or watching a video in my bed) it will go past 50 C, and climb further! At one point in my car while driving, (was charging and navigating, aux was connected so i could get audio navigation through my speakers) I suddenly realized I had past my exit 5 miles back, and had to stop to check the phone...
The phone was not responding to my wake button presses, nor holding it down, it was not outputting directions, and the red LED light was softly lit (not flashing) so immediately I unconnected the charger, and aux cable. The phone still didn't respond, holding power + vol up soft resetting it worked. But what struck me most was how blooming hot it was! It was NOT in direct sunlight, nor was the display on. It practically burned my hands! I had to look up how to soft reset the phone, using my old LG Nitro HD which is my GPS tracker for my car (nifty setup btw).
Now I had an LG Nitro HD which did this sort of thing 24/7 and I could not STAND that phone, since you had to baby the device every second to keep it cool, otherwise you would need to restart.
I have seen numerous threads online about the HTC One getting toasty, and it has before for me, but NEVER THIS HOT! Also this only JUST started happening (its not related to CM11 since I had a backup of HTC's ROM and it did the same thing (in fact it was even slower x.x)
Now here is my question : is this a normal occurrence for smartphones of this age? I think its 1-2 years old... Its past the warranty I suppose (still have the card, and box btw) Is this something that I just have to deal with?
I have used the phone alot while it was charging, and left it on a charger for a long time after it was fully charged... (i thought newer phones had a disconnect for charging)
What bothers me is how suddenly the phone has become stricken with this... problem. It has only been 2 weeks, and battery life is effectively halved, and I am afraid to even USE navigation anymore (unless I hold the phone up infront of an AC vent, which I did all the way home >.< not a fun task since its a manual!)
Thanks in advance!
I had this issue with my M7 for T-Mobile. I would factory reset it and things would be okay for a while until I logged into all of my common apps and realized it would happen again... Some apps make the phone work harder and a lot more on the M7... The way I fixed this was I removed apps I didn't really use and make sure to not be logged into apps that I don't commonly use... The other thing I did was restart after using any video and audio apps... One more thing was I turned on the power saver option with vibrate and cpu unchecked and my phone started acting better...
Edit: if you have insurance through at&t I would go back to complete stock (get rid of tampered flag and red warranty warning included) and let them know it's freezing up. They should send you a replacement and it may help you out...
OfficialLocdoGg said:
I had this issue with my M7 for T-Mobile. I would factory reset it and things would be okay for a while until I logged into all of my common apps and realized it would happen again... Some apps make the phone work harder and a lot more on the M7... The way I fixed this was I removed apps I didn't really use and make sure you not be logged into apps that I don't commonly use... The other thing I did was restart after using any video and audio apps... One more thing was I turned on the power saver option with vibrate and cpu unchecked and my phone started acting better...
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Yeah actually I just factory resetted the phone, and its absolutely normal now... Furthermore the USB speed is no longer 1mb/s and instead is back up to USB3 speeds!
BTW I did a firmware AND software factory reflash / reset.
I've just taken delivery of an LG V30+ LGH930DS and although the finger print scanner works the actual on/off power button doesn't (or at least seems intermittent)? Can't recall if it was initially OK and then stopped after updating to Pie, but noticed when I'd installed a dark theme which then froze and I couldn't restart the phone.
Of course, all tips suggest doing a soft or safe mode reset.... which requires a working power button combo?!
Can't help but feel (hope!!) it's a software issue/setting somewhere, only I've now done a hard reset and it still doesn't work.
Any suggestions, massively appreciated.
Thanks.
The fingerprint scanner is a separate part, with its own contacts; the entire thing actually sits on top of the power button. It's not unusual that one goes out while the other continues working.
If you can't do a hard reset (hold power+vol down until the phone reboots, takes at least 6 seconds iirc) then I would suspect either the power button has gone bad or the contacts are no longer...er...making contact. Try pressing the back glass around the power button as you press it to check the latter.
If you can make the phone reset with the above, it's a software issue.
Septfox said:
The fingerprint scanner is a separate part, with its own contacts; the entire thing actually sits on top of the power button. It's not unusual that one goes out while the other continues working.
If you can't do a hard reset (hold power+vol down until the phone reboots, takes at least 6 seconds iirc) then I would suspect either the power button has gone bad or the contacts are no longer...er...making contact. Try pressing the back glass around the power button as you press it to check the latter.
If you can make the phone reset with the above, it's a software issue.
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Thanks. Will see how I get on with your suggestions above. Meanwhile, quick update: started working again... then stopped again. Also last night the restart screen came on several times by itself (flickering awake from standby, as if I'd put my finger on the back). Only thought I have is that it may be a lose part inside that's occasionally causing trouble - specifically DIM tray eject 'bit' which was broken when I got it?
Thanks again.
pinkmoon said:
Only thought I have is that it may be a lose part inside that's occasionally causing trouble - specifically DIM tray eject 'bit' which was broken when I got it?
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I can't check to make sure, but the SIM eject mechanism is most likely all-plastic. The only think that might be metal is the pivot (assuming the eject is a lever mechanism), but something like that should be fixed in place pretty well and unlikely to ever come out.
The power button contacts are pretty widely-spaced anyway, it would take something long to bridge them and something that long would find it very difficult (if not impossible) to work its way in where the contacts are.
The problem is, just about everything you'd do to confirm it's a physical issue rather than something electrically wrong with the mainboard, involves taking the back off.
pinkmoon said:
Also last night the restart screen came on several times by itself (flickering awake from standby, as if I'd put my finger on the back).
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Hmm. This sort of thing actually happened to my first "powerful" android phone, a Motorola Droid 4.
It also had a mostly-inoperative power button, and I ended up physically removing the button from the mainboard in order to stop it from randomly going to sleep or, more annoyingly, restarting because it sometimes "thought" someone was holding the power button in. This actually didn't work, it was a board fault somewhere else and I ended up getting a busted phone to pull a replacement board from.
Not saying that is what's going on here, just that it sure does resonate.
Unless you feel really good about your chances, or got an exceptionally good deal, I'd see about returning the phone and finding another.
Otherwise, you can get a power button off ebay for around $12, if you're in the US.
This video shows it's fairly easy to replace, but you'll need a suction cup, a plastic card (credit cards work well), and ideally an adhesive sticker or rubber cement to close it back up properly (not strictly necessary, I ran mine for a while just tacked together with the old gasket while I searched for a new battery, no problem aside from intermittent fingerprint scanner disconnects). B7000 adhesive is well-regarded for this type of work and useful for other things, if you're the crafty sort.
pinkmoon said:
LG V30+ LGH930DS
although the finger print scanner works the actual on/off power button doesn't (or at least seems intermittent)?
Any suggestions, massively appreciated.
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Place the phone on a Qi wireless charging pad. If it's off, it will boot up/power up.
Once booted up you can install a software app workaround, for rebooting, etc.
If you don't have one, go to a carrier store and use one being displayed for sale. Then buy one for home.
Not only will Qi wireless pad charge a phone, it will TURN ON a phone if it's placed on the (plugged in) pad.
I've given many people this advice who have wonky power buttons with phones that have Qi wireless charging:
_______
From another post on the subject two years ago:
This Qi wireless charging pad automatic turn on feature is great for when your power button malfunctions. Phones get older, things break.
On the Motorola Quark series (Droid Turbo/Moto Turbo/Moto Maxx) several people were able to figure out whether it was their power button that had jammed or whether their phone had actually died. Phone wouldn't turn on.
We told them "Go to a carrier store. Put the phone on one of the Qi wireless charging pads on display. " If it turns on, it's the button. If it doesn't, you've got bigger issues.
Powering off and on Droid Turbo with broken power button
and a testimonial from another thread:
POWER BUTTON PROBLEM -- QI CHARGER WORKS
N7FALCON said:
aven1357 said:
I've read in another forum that a Qi wireless charger will turn the phone on to charge it- does any know if this is how it works? If the phone is off, the Qi charger will turn it on and then perform a charging? What if it is drained completely?
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The Qi Wireless Charger works whether your phone is charged or not.. I went to the Verizon store and asked to see the charger demo'd... I placed my powered off, Fully Charged, Broken-power-button-Droid Turbo on the charger and it Came to life.
I immediately configured the phone with an alternate power button app to control the screen on/off. FYI None of the apps I found will actually power the phone on from off, but will control the screen once it is powered.
I actually tried everything in this forum, short of the disassembly of the phone but that was next...
The program download.. Reboot Fast Boot; I couldn't get it to download correctly. after about 3 hours I quit... drove to the store and the rest is history. So Glad Not to have Lost everything!..
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Luckily for many, it was "just" the power button.
Many people then actually bought a pad for the first time to keep their phones on until they could get the power button repaired.
Hi. My power button was dead for about a week. Then I tried pressing the spot on the screen opposing the power button while pressing the button itself for a few second (with a little bit more pressure).
Then it just came back to life. I doubt this would permanently fixed the problem. But I'm relieved to have my power button back!
I will update later if the button gone bad again in future.
I've had this suddenly happen with the V30+ that I've had for nearly a year. Here's how I'm living with it, in case it helps anyone else who stumbles upon this thread.
For turning the screen off and on, I double tap the screen. I happen to use Lawnchair launcher, which supports the gesture, so I set its Double Tap gesture to Sleep. If you use another launcher, see if it supports that gesture and action. If it doesn't, you can try the Double Tap app in the Play Store, which I used before switching launchers. In both cases, you need to be on your launcher's home screen to turn off the screen, but it's an easy habit to get into.
For rebooting, I use one of the many apps available in the Play Store. They all require root. I think that I like Super Reboot the best, since it's not a fullscreen app and, so, looks like a popup menu.
If you happen to not have root and need to reboot into recovery in order to install Magisk (which seems like a catch-22), do the following:
1. Open Settings.
2. Enable developer options by going to About and tapping on "Build number" 7 times.
3. Go to System->Developer options, scroll down to the "Debugging" section and enable "Local terminal"
4. Go to your app drawer and launch Terminal.
5. Type "reboot recovery" and hit Enter. You could also do plain "reboot" and, I think, "reboot bootloader", but you probably want to enter recovery to flash Magisk so that you can use one of the store apps from now on, instead of Terminal.
That last tip is the main one that I wanted to share because it's not easy to figure out on your own and because I found myself in that situation. I thought that I had flashed Magisk while I was in recovery, but I guess that I didn't or did it in the wrong order. I was stumped for half an hour and wasted a lot of time trying lots of different reboot apps, only to discover that none of them worked without root, until I tried this Terminal method and found that it worked, surprisingly.
Following up on my last post (just above), I now know why my power button stopped working a month ago. Today, I removed my case to try out another and the glass back of the phone has come off on two sides. Looking inside revealed a familiar friend: a swelled battery. On a hunch, I tried the power button again and, with extra pressure, discovered that it still works. What must've happened is that, a month ago, the battery started swelling and lifted the back cover just enough so that the power button no longer made contact, but not enough for me to notice any swelling with the case on. It's funny that I was concerned, when I was choosing this phone, with how I would ever remove the battery and, here, when the time came, the battery removed itself.
Anyways, if your power button has stopped working, rather than it being because the button has gone bad, it might be an early warning that your battery is swelling and will need to be replaced soon. Fortunately, replacement batteries that even include all of the tools needed are as cheap as $10 on eBay or $15 on Amazon. Search for "BL-T34". Some compatibles on Amazon even have up to 500 mAh higher capacity. I'm going to order one ASAP and, hopefully, that'll solve my power button issue (in addition to the slightly more serious issue of carrying around a bomb 6 inches from my crotch).
Edit: I got the battery today and finished the job in about half an hour. It wasn't bad. It helped that the battery did half of the work of removing the back cover for me. I didn't need to use heat to loosen the glue. In fact, I didn't even need to use any glue to put everything back together, because the existing stuff was still sticky enough. I could've reinforced it, but I didn't want to because I may have to do this again in a year or two (and even if I've upgraded by then, having a working spare or giving it to a loved one will be nice). Oh, yeah, as predicted and hoped for, my power button now works again! I'm happy. For $15 and a half hour of labor, my phone is as good as new (maybe even arguably better, since it now has a 3800 mAh battery in it instead of the stock 3300 mAh one).
Edit #2: I discovered a cool app called Battery Charge Limit (root required), which stops charging at a pre-set percentage (I'm setting it to 80%). Hopefully, this will increase the new battery's lifespan and, particularly, avoid the overnight overcharging that I suspect is what caused the last battery to swell.
https://forum.xda-developers.com/lg-v30/help/battery-charge-limit-lg-v30-pie-t3975433