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. ?
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Last night my battery completely drained so I charged it over night and when I went to power it on it says booting WPH go go go, boots to the HTC green logo screen and powers off. I have been running WP7 flawlessly for 3 weeks now and have not had this problem before. I don't really want to reflash right now because I'm hoping there's a way to salvage everything in the phone.
Are you sure the battery charged last night...reason I ask is...when it completely drains the battery wont charge when the phone is off due to Magldr.
Yeah, it's off the charger right now and it just keeps powering off after the HTC logo
same exact thing just happened to me. I'm going to start from scratch and redo it.
I am curious to know as to what caused this, it's very odd since the ROM has been working flawlessly.
your not restarting with usb cable attached are you?
how did you charge your battery? external charger?
there is some talk that charging in magldr usb flasher mode works dispite no status lights BUT its unclear if the battery controller will auto cut off when full, overcharging could shag your battery
oh a while back i had some odd restart issue too, pretty much as you have mentioned, happened 4 times in a row then worked
Help me too!!!
Me as well, about an hour ago, my battery drained, so I plugged it in, and the phone keeps restarting, but then powers off...
I've kept it on the AC for the past hour, and now it no longer hit's the magldr, it just flashes the screen black, then dies...
Is there a way to JUST CHARGE my battery? Without having it in the phone?
too bad you didnt seach for this issue, i wrote a nice piece that would have got you out of that mess if you hadnt kept restarting it, oh well never mind,
if you cant even get to magldr then your looking at an external charger, you could try connecting up an old usb cable directly to the battery but be very careful!
This happened to my old HD2 after I gave it to my sister once I got my HD7, to enable it to charge again all I did was remove cable, remove battery. Re-insert battery and attach cable, hold down the volume down button on the side of the handset and press the power button.
The phone will turn on and show the tri-color screen. Leave it on this screen for 20 minutes and the battery will charge, then simply reboot and you will be able to boot back in to Windows Phone 7.
TheDisneyMagic said:
This happened to my old HD2 after I gave it to my sister once I got my HD7, to enable it to charge again all I did was remove cable, remove battery. Re-insert battery and attach cable, hold down the volume down button on the side of the handset and press the power button.
The phone will turn on and show the tri-color screen. Leave it on this screen for 20 minutes and the battery will charge, then simply reboot and you will be able to boot back in to Windows Phone 7.
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Click to collapse
Thanks for that tip...I am going to remember it in-case I one day run into the same problem
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
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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.
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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:
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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.
Hi everyone,
yes this may seem at first similar to several other posts, but rest assured, I have googled from one end of the galaxy to the other and so far no solution has helped me.
Basically, my N7 a month ago was bootlooping loading android, this has happened before and usually i just re-load the factory image and i'm good for another few months. This time however, I was busy and said, no problem, i'll load the image in 2 days or so. By then, my N7 appears off and does not react to me pressing the power button or plugging in the charger. My assumption is it was in my bag and kept bootlooping and eventually drained the battery.
On my google searches, i've noted that there is a huge issue where when the battery drains completed, it is a pain to get it to turn on. Most people seem to be okay letting it charge for a while and holding the power button for 30 seconds or so. I've looked at google's official video about this issue and their steps to fix it, and i have not gotten any of this to work. I've held the power button for not 30 seconds, but several minutes until my finger became sore and it won't turn on. I've also done this holding down the power and the volume up button, volume down button, both etc. all combinations. I've left it on the charger for days and when i unplug and re-plug the charger, i don't get a hint of the screen powering on, let alone the battery charger icon you are supposed to see. I've tried this with my other chargers as well. The n7 charger is fine, i use it for other android devices no problem. If i plug this in the computer, i get a driver install failed error as well.
I've gone as far as taking off the back cover and double checking the battery connection which apparently gets loose quite easily and this is fine. I know my charger is fine, because i use this charger for other phones and they work fine, i've also tried using the usb cable to the computer and that does nothing either.
I would rule out an issue with the usb port on the device itself, because i have the dock which can charge the nexus 7 from the connections on it's side, i think it would be highly unlikely that both these pieces failed.
I am at my wits end, i really liked this tablet and want to salvage it as best i can. Only thing is i can't really do anything with it, all my google accounts are saved on this device and i'd rather not reset all my passwords if i attempt to sell this for parts.
I'd like to know if anyone has any other recommendations on what i could try, even if it is swapping out hardware inside the device. If i can salvage and sell this for something, i am willing to do that, i'm just not sure if it's something with the hardware at this point or if it's that dreaded battery drain issue.
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.
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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?
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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.
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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.
Saw today that there was the MIUI 14 Update for the POCO.
Downloaded, unpacked and then it said restart, pressed restart.
It turned off and never on again.
Tried holding power button, charging, fast boot, holding here and there nothing. Blackscreen.
Opened the phone, unplugged both screen and battery, plugged in. Nothing. Tried it a few times and then upon charging it installed the updated, turned off blackscreen.
Tried everything from above again, nothing. Saw that upon plugging on my PC it showed QDLoader 9008 so probably EDL. If i unplugged and plugged in I heard a sound on my PC. If i held the power button i also heard the sound when you connect a device.
Opened the phone up again, removed the mainboard and tried to remove that small metal cover from the mainboard. Couldnt get it off even with enough heat applied. Heated the mainboard according to a different thread: Mainboard Part
Now when i charge the phone it shows me the battery display but if i press the power button the phone doesnt boot. Without charging it also doesnt show any sign of life. I didnt plug in all parts such as camera etc. yet
Does anyone know what to do now, cant afford a new phone.
edit//
If i plug it into a charger it shows 90%
PC shows it as a drive (E:/) Linux no more 9008
still no reaction after connecting everything
Eon125 said:
Saw today that there was the MIUI 14 Update for the POCO.
Downloaded, unpacked and then it said restart, pressed restart.
It turned off and never on again.
Tried holding power button, charging, fast boot, holding here and there nothing. Blackscreen.
Opened the phone, unplugged both screen and battery, plugged in. Nothing. Tried it a few times and then upon charging it installed the updated, turned off blackscreen.
Tried everything from above again, nothing. Saw that upon plugging on my PC it showed QDLoader 9008 so probably EDL. If i unplugged and plugged in I heard a sound on my PC. If i held the power button i also heard the sound when you connect a device.
Opened the phone up again, removed the mainboard and tried to remove that small metal cover from the mainboard. Couldnt get it off even with enough heat applied. Heated the mainboard according to a different thread: Mainboard Part
Now when i charge the phone it shows me the battery display but if i press the power button the phone doesnt boot. Without charging it also doesnt show any sign of life. I didnt plug in all parts such as camera etc. yet
Does anyone know what to do now, cant afford a new phone.
edit//
If i plug it into a charger it shows 90%
PC shows it as a drive (E:/) Linux no more 9008
still no reaction after connecting everything
Click to expand...
Click to collapse
When the phone is connected to edl mode, the next procedure for recovery is simple, you have to look for the procedure, for example here.
I solved it by heating up the metal cover and the mainboard as shown on the "mainboard part image". If you reasamble the phone make sure that your mainboard is connected to the button connectors, that was my issue. For some reason it wasnt connected and therefore the buttons were not working.
Support was literally useless and the warranty in germany is a scam.
Trash phone. Never going to buy POCO again.