1. Rimbaud's Avatar
    Hello all, hope someone can help.

    So if have an undamaged Nexus 4 that has been really reliable, especially after upgrade to 4.3. Yesterday I was running out of battery (1%) and plugged it into my Nexus 7 charger as normal (definitely working) but the battery icon did not change to charging and then the phone shut down.

    I have not been able to get anything out of the phone at all, no lights or anything, even after charging for hours with several different chargers. I have tried all variations of holding power and volume buttons and even cleaning the usb contacts with alcohol.

    Does anyone have any suggestion? If you think it is the usb port that is broken I could buy a wireless charger...

    Thanks in advance
    08-18-2013 03:20 PM
  2. RumoredNow's Avatar
    Battery out of power is the most likely suspect...

    Do you have ADB (Android debug bridge) on your computer?

    If yes, try plugging the phone into USB and send the
    Code:
    adb reboot
    command to the phone and see if that wakes it to allow charging...
    08-18-2013 03:27 PM
  3. RumoredNow's Avatar
    08-18-2013 03:46 PM
  4. Rimbaud's Avatar
    Battery out of power is the most likely suspect...

    Do you have ADB (Android debug bridge) on your computer?

    If yes, try plugging the phone into USB and send the
    Code:
    adb reboot
    command to the phone and see if that wakes it to allow charging...
    Thanks for the reply, I installed adb (on Ubuntu) and it doesn't recognise the Nexus 4, but does recognise my Nexus 7, so I can't issue adb commands sadly... It looks like the device has to be on to recognise it as Nexus 7 wasnt recognised when off.
    08-18-2013 04:10 PM
  5. Rimbaud's Avatar
    Interesting link here says that dead battery will not charge from a charger for another device...Nexus 4 doesn't charge after battery dies | Mobot.net
    08-18-2013 05:35 PM
  6. Rizy7's Avatar
    I think you have to have usb debugging enabled for adb to work. Are you sure the charger is not broken.. does it work with your nexus 7?
    08-18-2013 09:24 PM
  7. RumoredNow's Avatar
    Thanks for the reply, I installed adb (on Ubuntu) and it doesn't recognise the Nexus 4, but does recognise my Nexus 7, so I can't issue adb commands sadly... It looks like the device has to be on to recognise it as Nexus 7 wasnt recognised when off.
    Interesting link here says that dead battery will not charge from a charger for another device...Nexus 4 doesn't charge after battery dies | Mobot.net
    I think you have to have usb debugging enabled for adb to work. Are you sure the charger is not broken.. does it work with your nexus 7?
    It is quite common for a device to not charge from 0% without the factory approved AC charger...

    As for ADB over USB... On my GNex, some of the recent builds of Ubuntu Touch have left the phone in a state where it will not wake from powered off (despite having charge) and an "adb reboot" command always wakes the phone. It's not even an Android at this point - just Android bits running under UT. So that was worth a shot. I did sort of forget about Debugging on the OP's phone maybe not being enabled. I guess I'm just used to mine being on.

    A powered down phone still registers on my computer when plugged into USB. It signals a device recognized and then the recognition goes off again immediately as the device is powered down, but an acknowledgement is there. The device can then be rebooted via ADB even though it's turned off. The command wakes the phone as if the power button is held down. I just did that with my GNex running Ubuntu Touch 20130816... USB Debugging is enabled by default and can't be disabled.

    Next, I disabled USB Debugging on my Nexus 4 and plugged it into the USB. Device did not register with the computer and ADB does not see it... Rizy7's point is thus proved. If debug was not turned on prior, ADB is a dead end. Sorry.

    So the problem is the drained battery and the chip inside that battery not having power enough to "see the charge."

    The Nexus 4 power adapter has the following output: 5Vdc/1.2A
    The Nexus 7 power adapter has the following output: 5Vdc/2A

    The amperage is too high on the N7 charger. If you don't have the N4 charger, look around your house for a charger that lists the same output as the N4's factory charger or go purchase one. Since the battery drained and the computer won't see the device due to USB debug being turned off, you will absolutely need to supply the correct charger output to the device to have any hope of reviving it.

    Plug the phone into the charger and wait. If it doesn't appear to do anything (like the battery Icon appearing when the power button is tapped) after an hour then unplug the charger. Hold Power + Volume Down and plug the charger back in... Hold those buttons down and hope it goes into bootloader mode. If it does, use bootloader to restart the phone. The bootloader should come on with an arrow pointing at the power button and the word START written inside the arrow... If that isn't what you see, tap the Volume Up button to cycle through the options until you get to START. Tap the Power button to give the phone the START command.
    08-19-2013 01:23 PM
  8. Rimbaud's Avatar

    So the problem is the drained battery and the chip inside that battery not having power enough to "see the charge."

    The Nexus 4 power adapter has the following output: 5Vdc/1.2A
    The Nexus 7 power adapter has the following output: 5Vdc/2A

    The amperage is too high on the N7 charger. If you don't have the N4 charger, look around your house for a charger that lists the same output as the N4's factory charger or go purchase one. Since the battery drained and the computer won't see the device due to USB debug being turned off, you will absolutely need to supply the correct charger output to the device to have any hope of reviving it.

    Plug the phone into the charger and wait. If it doesn't appear to do anything (like the battery Icon appearing when the power button is tapped) after an hour then unplug the charger. Hold Power + Volume Down and plug the charger back in... Hold those buttons down and hope it goes into bootloader mode. If it does, use bootloader to restart the phone. The bootloader should come on with an arrow pointing at the power button and the word START written inside the arrow... If that isn't what you see, tap the Volume Up button to cycle through the options until you get to START. Tap the Power button to give the phone the START command.
    That is really interesting, thank you. No luck so far but crossing fingers. I am using N4 charger and (I think) the original USB cable.

    I also bought a QI wireless charger for 20 quid, arriving tomorrow, as I thought that might work (long shot).
    08-20-2013 07:07 PM
  9. Rimbaud's Avatar
    Oh dear the N4 charger didn't work. Just the Qi charger then I will have to give up...
    08-21-2013 08:09 PM
  10. RumoredNow's Avatar
    Have you tried holding the Power + Volume Down buttons for one full minute or more???
    08-22-2013 01:26 PM
  11. Rimbaud's Avatar
    Yes I did, but finally found a solution!!!

    The Qi wireless charger was able to restore the phone to life! 25 quid of happiness after a week of dead phone.

    It looks like my usb port is totally broken...
    RumoredNow and mike_something like this.
    08-22-2013 03:57 PM
  12. Tangen Ong's Avatar
    Thank you
    Your experience did really help me.
    I met the same problem with you.
    USB connector is broken. Using wireless charger is another solution.
    07-27-2014 06:55 AM
  13. N4Newbie's Avatar
    Yes I did, but finally found a solution!!!

    The Qi wireless charger was able to restore the phone to life! 25 quid of happiness after a week of dead phone.

    It looks like my usb port is totally broken...
    Let this be a lesson: in the future, never permit your device to get below 10-15% battery level. You are risking all sorts of trouble if you do.
    Raylz likes this.
    07-27-2014 08:32 AM

Similar Threads

  1. [nexus 4] exchange email not working after 4.3 update
    By shmitsky in forum General Help and How To
    Replies: 4
    Last Post: 09-27-2013, 08:26 AM
  2. Replies: 6
    Last Post: 08-19-2013, 06:47 PM
  3. Auto Screen On - no longer working
    By SCjRqrQCnBQ19QoYCtdl in forum HTC One M7
    Replies: 0
    Last Post: 08-18-2013, 02:49 PM
  4. photo & video Indexing in Gallery view on Nexus 7
    By Daniel62 in forum Legacy Android & Other OS's
    Replies: 0
    Last Post: 08-18-2013, 02:23 PM
  5. Charging problem with nexus S
    By xBlast in forum General Help and How To
    Replies: 0
    Last Post: 08-18-2013, 02:12 PM
LINK TO POST COPIED TO CLIPBOARD