Gents,
I have just got a Xoom 2 16GB Wi-Fi only model and seem to be having a problem.
I have read the original Xoom tips & tricks thread and searched but want to clarify a few things...
On the Xoom2
1. The charging LED does not light. Apparently it only lights when the unit is powered off. Ok, I can accept that.
2. When plugged in, if I try to power my unit off it powers up again on its own.
I spoke to Motorola tech-support about this and they said that was "designed" behaviour. The unit will automatically power on when the charge level is above a certain threshold.
Is the above true? Does the unit have to be VERY low on battery before the LED will indicate that charging is taking place?
I'm rather confused as all of the above seems totally counter intuitive to me.
Any advice appreciated.
Yes you cannot charge the tablet while it is powered off, it will automatically turn on and charge.
Apparently they changed this in the latest software update but I have yet to test this out.
Sent from my Motorola Droid Xyboard 10.1 with Verizon 4G LTE
The behavior will change when you get the 3.2.2 update. There's a powered off charging mode for quick charging now.
Xoom 2 charging
Yes, my xoom 2 also turns on to charge! found this weird but it must be the case.
Hrm.
Ok so I've done more digging and it does say on the Moto website that the "on to charge" behaviour is normal.
I am keep to get mine updated to 3.2.2 however my "System Updates" option just tells me that my system is up to date despite being only 3.2
Furthermore, I had trouble powering my device up again. I had what seemed like problems straight out of the box but after speaking to tech support they told me to charge the unit for a while (like a few hours) and then give it a go.
I did this and still no joy. I called again and they asked me to try pushing and holding all three buttons (i.e. vol up, vol down and power) together for 15s.
After I did this the unit powered up, I managed to get through the setup procedures and have a little play.
Then I put the unit in my bag and left for home. I got home and the unit wouldn't power up. So I tried the reset and got presented with a funny menu (looked like a bootloader to me).
Not sure what I selected here but it booted albeit with some weird apps showing.
I rebooted again and now it seems fine but not sure it's actually charging!!!
I might have to send this unit back for a fresh one.
Ok,
I've narrowed down my problem. If the unit is plugged into the wall adapter it will charge and work as normal. If it enters standby mode the unit will power on when the power button is pressed
Great.
However, if the unit IS NOT plugged in and it enters standby the power button WILL NOT turn the screen back on. It will just sit there lifeless.
The only way to recover from this state is to "reboot" it by pressing and holding the 3b buttons (vol up, vol down and power) for something like 10-15 seconds until the bootloader menu is shown.
Here's the real kicker though, if the unit is on but SHUTDOWN using the power button pressing the power button subsequently WILL turn the unit back on (i.e. it will go through the boot process showing the Moto logo/circles animation).
But again, once powered on, if the unit enters standby the power button will not turn the screen back on.
What is going on here? Does it just sound like my unit is faulty and needs to be replaced?
Any help appreciated...
SF
Bump.
Anyone got ideas/suggestions regarding the power button/standby issue I am describing above???
have you fully charged it yet?
Yup.
I charged it for a good 8 hours + (overnight) and it still exhibited the same behaviour.
I think the power button is dodgy/intermittent and that is what is causing the issue.
Either way, I've RMAed the unit back to Expansys and am awaiting a replacement.
Related
I think I have fried my Nexus 7.... didn't even think about what I did how stupid am I....
I decided to wire up a Hella connector to a USB cable the idea being to plug it into my phone for charging on the road... I then had a not so smart idea to use my OTG cable to connect the USB A connector to my Nexus 7 to see if it worked...
Nexus 7 booted past the bootloader and then nothing.... I realised then how stupid I had just been...and still nothing...
Presumably I've run a shed load of power down one of the data line..... what a fool.....
ARGH!!!!!!! anything I can possibly do to salvage it.... please!! :crying::crying::crying:
you could try something ASUS support told me, press all buttons (volume + & -, power) for 30 seconds, and if it won't boot after that, you should get a RMA
chiwou said:
you could try something ASUS support told me, press all buttons (volume + & -, power) for 30 seconds, and if it won't boot after that, you should get a RMA
Click to expand...
Click to collapse
Going the RMA route would be costly. If it is dead, he'd be better off just bring a new N7.
Sent from my Nexus 7 using Tapatalk HD
Thanks for the suggestion but no it hasn't worked...
I've had the N7 plugged into the charger for the last 30 minutes or so and when I went back to it the screen backlight was on slightly (you can see if you look at the screen from the side)... but the whole unit was really really hot... I've obviously disconnected it but now can't get the thing to turn off, if I hold down the power button the screen flicks off but then back on.
:crying::crying::crying::crying:
najaboy said:
Going the RMA route would be costly. If it is dead, he'd be better off just bring a new N7.
Click to expand...
Click to collapse
I would think that "broken display” units on eBay/CL probably have working mobos and batteries, as the owners are trying to dump them because of the broken screen. But, buying used is a crap shoot.
Nice that Google is selling N7s at cost (or even a loss) - but it does mean that any oem component replacements will be a significant fraction of the original price.
I was reading in Play Books when my N7 shut down due to low battery. I plugged it in and it wouldn't charge or boot and I noticed a faint light bleed and faint dots streaming from right to left on the display. I tried things like holding the power button for 30 seconds to reset, holding vol down and power to try to get to recovery, but it wouldn't take. Finally, with it plugged in, I held down the power button for just about 10 seconds and backlight and dots stopped. A few seconds later without pressing anything, it booted up. It would start to charge, but if the screen timed out, I was back to the earlier state and it wouldn't come on. So I got it started again and immediately went to developer options and checked Stay Awake while plugged in. Eventually the charge built up and I'm back to normal, at least my N7 is normal. I only mention this because the OP talked about the faint backlight and it may be worth trying.
busterdan said:
Thanks for the suggestion but no it hasn't worked...
I've had the N7 plugged into the charger for the last 30 minutes or so and when I went back to it the screen backlight was on slightly (you can see if you look at the screen from the side)... but the whole unit was really really hot... I've obviously disconnected it but now can't get the thing to turn off, if I hold down the power button the screen flicks off but then back on.
:crying::crying::crying::crying:
Click to expand...
Click to collapse
A standard hella charger outputs 5V at 2A which is the same as your N7 original wall charger.
I doubt your problem came from the charger, it might be softbrick at an unfortunately moment.
I came across a similar problem when i was editing a custom kernel.
If you tried every method to shut down the device and failed do the following:
1. Open the case (it's quite easy to open with a plastic card)
http://www.ifixit.com/Guide/Installing+Nexus+7+Battery/9895/1
2. Unplug the battery and hold the power button 30 seconds (with the battery detached)
3. Let it soak for 10 minutes
4. Reconnect the battery and close the lid.
5. Put your nexus 7 in the wall charger, and you should see the battery bar on the screen.
After that, let it charge a few minutes and boot the device.
Hey everyone,
I don't know what happened wrong with my interaction with AQUOS, but the phone appears to be bricked.
Here's what happened.
Bought my phone from Boost, successfully switched carrier to Ting
Have been using the phone for more than a month without any problems at all
Yesterday, I left the phone without charging and it fully discharged
I plugged it to charge and came back to turn it on after a few hours later. This is when I noticed it wouldn't turn on.
I tried a couple things: holding the power button for a long time, and a hard reset (volume down button + power button). But the results were the same.
The screen doesn't turn on. While holding the power button or power + volume button, the only feedback from the phone is a series of prolonged vibrations (~10 seconds) separated by a brief pause (~1 second).
Have anyone experienced this problem?
Any advice/insight into this problem would be greatly appreciated.
I've had similiar issues with tablets where it completely drained and wouldn't charge via USB. At most it'd just give off a single vibrate and then die before even flicking on the screen. Try this, plug a USB cable in for a full 24hours before you hit the power button. Then give it a try. If it pops on to the screen where its charging after that let it get a full charge before fully powering on. Hope this helps and also hope its not due to the switch to ting.
Best of luck
PHONE OFF
This could be due to a bad usb connection. some usb when broke will actually discharge your phone or tablet so try to use a different usb. PLZ POST BACK IF THAT DIDNT WORK I HAVE MORE SOLUTIONS
So few days ago my phone suddenly turned off and kept rebotting itself (It would reach the samsung galaxy logo and then turn off). I thought it was a battery issue so I removed it for 30mins and tried again, worked fine for an hour then problem started again. I left it over night to charge in the wall socket incase.
Same issue next morning and no solution.
I replaced the battery with a friends and the same issue happened on my phone (i used my battery on his and it works fine on his) so I removed the issue of battery itself.
That evening the phone then just stopped responding at all. It would not respond to pressing the power button (no load, no vibration).
Tried entering download mode using vol down + home + power. Nothing. (So cant use Odin)
Tried entering recovery mode using vol up + power. Nothing
Tried hard reset using vol up + power + home. Nothing.
(All the steps I used a fully charged battery from another s4 phone and removed/re-entered before trying again)
So I check online and notice some people having issues with power button, but even if that is the case - wouldn't my phone still charge? I dont even get the battery chargning icon on the screen when plugged in either PC or wall socket.
I opened it up and changed the motherboard with another samsung s4 and my original problem mobo still does not load on the new s4. (My new mobo worked on the old device though).
The ONLY response I got was when I used my original mobo on new s4 device and plugged it into PC, it popped connect and then disconnect sound and thats it (doesnt recognize usb port).
What are my options apart from getting another motherboard or going to a shop for a JTAG repair? I was contemplating just removing the power button and seeing if that helps in getting a charge response lol
Well your power button is broken for sure. Replace it and then test it.
Lennyz1988 said:
Well your power button is broken for sure. Replace it and then test it.
Click to expand...
Click to collapse
Wouldn't the phone still recognize charging even if the power button is faulty?
penguness said:
Wouldn't the phone still recognize charging even if the power button is faulty?
Click to expand...
Click to collapse
It always takes a few seconds before it starts to charge. So maybe the device reboots before reaching the charging phase. I'm guessing though. But since your problems started with power button issues it would be the logic place to start.
The part only costs a few dollars.
Well I'm exactly in the same situation as you, since this morning on a i9505 running JFLTPE-GPE 5.0 ROM. The screen appears for 1 second or 2 (Samsung logo) then it powers off . I need to remove the battery to try something else.
Same behaviour, even for recovery mode, so Odin is not an option.
I thought that changing some kernel settings have caused that, but as I just put them back to default values, it should not happen.
I didn't have some power button issues, it was just powered off at my wake up this morning. In your case, does your phone vibrate and power up instantly when you put the battery ? That's the case for me, but it should not be the normal.
My problem is actually solved : indeed, it was the power button. I removed all the screws and played a little with this power button (air dust, etc...), enough to make it start correctly !
I managed to do some backups, and now I hope that it won't break again.
Calicodesiles said:
My problem is actually solved : indeed, it was the power button. I removed all the screws and played a little with this power button (air dust, etc...), enough to make it start correctly !
I managed to do some backups, and now I hope that it won't break again.
Click to expand...
Click to collapse
Yeah, that happened before (automatically powering up, vibrating, going to samsung logo and then shutting down and doing it again until I removed battery - putting the battery back in with start it up without pressing the power button).
When it was in that phase, the one thing that did work was doing a soft reset (home+power+down vol, and then holding just power) - however that only worked for like an hour before it went back to the restart phase.
However now it doesn't respond to anything at all. (Any kind of response I got was when I put that mobo in another s4 and plugged in usb, which just gave a connected/disconnect sound on w7, no life on the phone itself).
Be very careful as to what you do, I suggest you do NOT leave the battery on it and charge it (which was the last thing I did before it went unresponsive) - my guess is phone went haywire trying to turn on/off continously.
Hey all, I'm posting this here instead the of Verizon forum on here because it seems that the Verizon section has little to no activity.
I've looked at so many posts already on this in the last hour, and they all seem like it goes to a bricked phone. However, mine acted differently. I still want some fresh opinions.
I've had my S8 since 2 weeks after launch and it has worked perfectly fine. No problems and the occasional drop here and there on carpet from sitting level.
Today after work, I turned on my phone, swiped to unlock, it froze on my wallpaper, and went to a black screen. I knew it turned off too, because my Gear S2 vibrated at me signaling a disconnect. Now, it's just a black screen, no responses, no LED's, nothing. From other posts it seemed the "Black screen of death" would still get some LED's unless I'm mistaken. All I get is that my phone only vibrates quickly when holding vol- & Power and is just looped like that. My computer detects it as "QUSB_BULK", which is scary....
Do I need to take it in? Or is there anything I could do to try to fix this. I'm on a device payment plan and at the time couldn't afford the insurance, and I sure can't afford any repairs or replacements of the phone.
You've tried to press Volume - and Power if it enters waiting, volume + and goes into downloading volume rewards - and Power if you reboot as soon as the Samsung s8 presses volume + birby and power the phone goes into twrp.
pierotundo said:
You've tried to press Volume - and Power if it enters waiting, volume + and goes into downloading volume rewards - and Power if you reboot as soon as the Samsung s8 presses volume + birby and power the phone goes into twrp.
Click to expand...
Click to collapse
I don't get any display on the phone, and I've tried every way possible to get into download and recovery mode. It's just completely stone dead other then the vibrating at vol- & Power and the "QUSB_BULK" on my computer. Other than that, it is just a black screen. So I'm still kinda clueless.
Have you plugged it into the wall?
Mine did this yesterday and plugging it in we the only thing that woke it up
It had powered down suddenly
Yea, I attempted that. No life what so ever. Now I don't even get a vibration at power and volume down, so I'm assuming the battery finally died. Let's see if total power loss would affect it much and if it would just suddenly come back to life, but. I am at work so I haven't had a chance to plug it again today. I kept it unplugged overnight while I slept to see if that did anything. So guess I'll find out if I have to contact Verizon or Samsung about it. I've only had it since end of April. So this defect better not kill me money wise.
This just happened to me today idk whats wrong
Last night I had my phone connected to my computer to charger it per my normal routine before going to bed. I removed the USBC cable and the phone's screen instantly went black. Would not power on with holding the power button, power button and Volume + button together. None of the tricks I knew to try would work.
I laid down for the night and plugged it into the original charger and cable from OP, and the phone vibrated, showed the bootloader unlocked message, then back to black screen, never showed the boot animation. Intrigued, I then was able to get into the fast boot screen, I got excited and thought maybe by some chance there was a software/kernel issue and I could push the image from my desktop. So I unplugged the power cable and as soon as I did the phone instantly powered off.
Now prior to connecting the phone to the computer, the phone was at roughly 35% battery, so there was no way at any point that the battery was dead.
I left the phone connected to the oem charger and cable overnight, and upon waking up today the phone will still not turn on. I tried holding power and volume + for at least a minute and no signs of life.
I'm really at a loss here, I've had the phone less than 3 weeks, it's never been dropped or exposed to water.
I opened up a ticket for repair from OP but now I'm concerned that the phone is rooted and has TWRP, if they'll deny repair, even if it appears to be a hardware issue not software?
Are there any other tricks I can try?
Well as an update, I now know why I've seen many people say OP has horrible customer support. It took longer than it should have, but the repair facility says that replacing the mainboard fixed the problem. And sure enough my phone is charging and working as expected. Already updated, bootloader unlocked, twrp installed and magisk. Life is good. ?