My wife has a Z4 LTE tablet she bought a little over a year ago that has been working great until the past 24 hours. She was using it as the battery was drawing near zero, but instead of it throwing the normal warning at 5% battery life it just shut down on her. She plugged it in to charge, and 15 hours later it wasn't turning on.
Here's what we've tried:
* Removing the SIM card and the SD card, disconnecting the USB charging cable, and holding down Vol +/- and power button. No vibrations.
* Holding Vol + while connecting the USB cable to a laptop USB 3.0 port. Charging indicator light turns blue. Let it sit for an hour, disconnected USB, system immediately turned off. Pressed the power button. Nothing happened.
* Not hold anything down, plug the USB charger into the stock Sony wall-charger (U.S. market) that came with the tablet. Light turns red for 1 second, green for 1 second, turns off for 1 second, flashes red, then turns green. Let sit for an hour. Press the power button. Nothing happens.
When connected to the laptop, with the charging light Blue, ADB found no connected devices. Tried again with the charging light green. ADB still found no devices.
Frustrated, we disconnected it for everything and let it sit for two hours not connected to anything. My wife tried to turn it on, and we got it to boot! It had 5% battery remaining. Every cable we connected to it, whether to a wall charger or to a laptop, triggered a USB warning notification stating that the USB needed to be connected to a charger, but this notification was immediately replaced with the low battery warning notification before we could click on it to attempt to take any action, if any actions were even available. Hoping for the best, while it was on and now with 3% batter remaining, I tried holding down the Vol +/- buttons and power button again hoping to trigger a device reset.
Now it's back to not booting, and the power indicator light again did the red, green, off, red, green cycle.
We're well outside warranty on this one, and with no cosmetic damage I'm hesitant to try to dismantle it if I can avoid doing so.
I've scanned all the other threads and couldn't find any similar issues, so I turn to you. Any advice would be most appreciated. Any advice that leads to my wife getting her primary computing device back in full operations mode is even more appreciated.
Help XDA Community. You're my only hope.
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so it seems as if when i plug it in, the light about the power button turns orange, yet it still shows the battery at 1%... turn tablet off and plug it in and charging light appears as if its chargings. 30 mins later just to see my progress, still 1% battery remain. reboot jetstream and plug it in, no luck, o now it totally powered off and plugged in to the wall by itself in an outlet that i know works. device is off, charging light appears, lets see by AM
but has anyone else had this problem or am i gonn have to call warranty and et a refurb :/
I do not know any history on this phone, I do not know what software it had on it, it was Dead when I got it. When I plug it into the USB on my tower it will turn the green light on if I use one of my Samsung cables. If I plug it in to a wall plug it will turn the green light on only if the usb is about 1/2 way pushed it, but if it fully seats the light goes off. While the Green light is on if I press power it will go out. The Green light will come one even if the battery is out. I read where I needed to use a motorola factory cable, so I purchased one off ebay....when I plug it into the computer I still get nothing. But, the I plugged it into my palm wall plug and left it plugged it and when I it the power button the camera flash would come on then off....it would do that with or without the battery. Since getting the factory cable I have tried every configuration of volume + and - and both while holding the power button that I can think of. But I can't get this thing to power on or reboot into recovery.
Any suggestions of what to try now or tips??
Thanks,
Justin
You could donate it to the devs.
So I've just acquired a Commtiva N700. It's been sitting in a desk drawer for several years, and the battery is completely flat.
When I plug it in to charge, the red power light comes on, but it remains completely unresponsive. It doesn't even show up as a USB device if I plug it into a computer. After a while the power light will start flashing irregularly. Even after being left like this for a while, nothing happens.
I've followed the suggestion on one of the other threads of taking the back off, disconnecting the battery, leaving it for a bit, reconnecting and charging. I just get a flashing red light again.
I'm suspecting that the battery is so flat that the charger circuitry is refusing to charge it because it thinks it's broken, thus rendering it a brick.
Before I bin it (not worth replacing the battery on a thing like this!) does anyone know if there's any last-ditch recovery I can try?
hi, i'm unable to start my phone. all of a sudden it turned off while being on charger.
The LED now lights dim red (if on charger) and does nothing. Pressing any side buttons do nothing, just the led still lights dim red. Plugging off charger cable doesn't make any difference just the LED turns off.
Can this be due to battery not charging? It has power off shortly ago due full discharge. I plugged in charger, phone turned on for a while indicating charging by LED bright red. Phone was awake about several minutes, then this sudden die.
Any help is highly apreciated.
have you already long pressed the power button until the phone vibrates?
It was solved! The phone kicked in 30 minutes after, now behaves normal.
Anyway curious why the phone didn't start so long. Tho discharged it had power supply.
I replaced battery recently, so maybe a bad contact or the cord dropped out?
I left the phone charging. Stepped outside and came back. Found my phone completely dead. It wont turn on or charge. I tried a few method I found online. It doesnt work. The only thing that shows signs of life. Is when I hold the power and up button and plug in the charging usb while still holding the button. Red light blinks. But once I let go of the buttons back to dead. Please help of anybody know to fix this.
Anybody?
Did you completely discharge the battery (0%) before you plugged in the charger? If so, that's a dangerous game to play. Keep it charging for about 24 hours and then try to boot it.
Left it charging for a couple of days now nothing. Every time I plug in the the charge the red light comes on and then off. Blah I guess it's time to move on.
khmerkid said:
Left it charging for a couple of days now nothing. Every time I plug in the the charge the red light comes on and then off. Blah I guess it's time to move on.
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Just to check, but you're not able to go into fastboot, correct? (hold VOL UP when you connect it to your computer, and a blue LED goes on)