Nexus 9 completely unresponsive: He's dead, Jim... - Nexus 9 Q&A, Help & Troubleshooting

Been running this Nexus 9 as a headunit in my truck for a long time. It's been good to me. I'm VERY familiar with flashing ROMs, recovery, etc...
This weekend the device became 100% unresponsive. Meaning, no lights or anything on the screen as a result of plugging it into a wall charger. I've tried holding down the power button for an eternity and no dice. Power and volume down or power and volume up don't do the trick either. Just to make sure it wasn't a drained battery I left it on the charger for 24 hours. Same results.
Any ideas? Never had a device that was completely unresponsive.

italynstylion said:
Been running this Nexus 9 as a headunit in my truck for a long time. It's been good to me. I'm VERY familiar with flashing ROMs, recovery, etc...
This weekend the device became 100% unresponsive. Meaning, no lights or anything on the screen as a result of plugging it into a wall charger. I've tried holding down the power button for an eternity and no dice. Power and volume down or power and volume up don't do the trick either. Just to make sure it wasn't a drained battery I left it on the charger for 24 hours. Same results.
Any ideas? Never had a device that was completely unresponsive.
Click to expand...
Click to collapse
It's possible it's not actually charging which you've probably already considered. It's not very difficult to open the tablet to try battery connection reseat. You might need a new battery. Definitely sounds like a power issue.
https://www.ifixit.com/Wiki/Nexus_9_Troubleshooting might help.
https://forum.xda-developers.com/nexus-9/help/ran-battery-t3249427. Post #7?
Sent from my Nexus 9 using Tapatalk

ritchea said:
It's possible it's not actually charging which you've probably already considered. It's not very difficult to open the tablet to try battery connection reseat. You might need a new battery. Definitely sounds like a power issue.
https://www.ifixit.com/Wiki/Nexus_9_Troubleshooting might help.
https://forum.xda-developers.com/nexus-9/help/ran-battery-t3249427. Post #7?
Sent from my Nexus 9 using Tapatalk
Click to expand...
Click to collapse
Interesting....I'll try that thing in Post #7 and report back. 2 minutes seems like forever. Hope I can hold all three down without budging for that long!

Tried the fix suggested....no dice.
Put it on the operating table and removed the battery. Battery seating of the terminal looked fine. New battery time? Any tests I can do prior to confirm if it's worth buying a new battery?

As a follow up, I decided to simply re-seat the battery and put it back together. Apparently that was the issue because it works PERFECTLY now! Thanks for the tips!

italynstylion said:
Tried the fix suggested....no dice.
Put it on the operating table and removed the battery. Battery seating of the terminal looked fine. New battery time? Any tests I can do prior to confirm if it's worth buying a new battery?
Click to expand...
Click to collapse
Glad that resetting battery worked. I find that mine (the screen) started doing the black/white pattern thing when battery goes below 30-35%. I reset the battery connection when that happened but no change. I've already purchased an Acer R11 Chromebook in anticipation of the 9's demise.
Sent from my Nexus 5X using Tapatalk

Related

[Q] Changing Batteries

After three months with my Note 2, I've started having battery drain issues. Thinking my battery may be bad, I bought a regular and an extended battery. My problem is that when I swap batteries, the device will not turn on unless I plug in the charging cord and the battery icon pops up. Is this normal? Is there a way to fix this? Thanks.
rechbo said:
After three months with my Note 2, I've started having battery drain issues. Thinking my battery may be bad, I bought a regular and an extended battery. My problem is that when I swap batteries, the device will not turn on unless I plug in the charging cord and the battery icon pops up. Is this normal? Is there a way to fix this? Thanks.
Click to expand...
Click to collapse
after the battery icon pops up, press and hold the power button again, then it should boot to Samsung logo.
droidstyle said:
after the battery icon pops up, press and hold the power button again, then it should boot to Samsung logo.
Click to expand...
Click to collapse
I'm sorry that my question was not clear. I can get the device to boot, but only if I plug in the cord. I was hoping I could just swap batteries, press the power button, and have the device start. Having to plug the device in first is not possible if I'm away from a power source. Thanks for the quick reply.
I swap my battery every other day...this does not happen...I have never heard of this happening.. I use a samsung and a qcell battery..when ones almost dead..I shut down, install fresh one, power up and go.
Sent from my SCH-I605 using XDA Premium HD app
rechbo said:
I'm sorry that my question was not clear. I can get the device to boot, but only if I plug in the cord. I was hoping I could just swap batteries, press the power button, and have the device start. Having to plug the device in first is not possible if I'm away from a power source. Thanks for the quick reply.
Click to expand...
Click to collapse
You are pressing and holding the power button down until booting starts? You have to hold it 2 to 5 seconds when its completely powered down.
alistairs1 said:
You are pressing and holding the power button down until booting starts? You have to hold it 2 to 5 seconds when its completely powered down.
Click to expand...
Click to collapse
I've tried everything. Once I take the battery out, the device will not recognize that I put the battery back in unless I plug in the charger for one second. Once I plug in the charger, I see the red light flicker and then I can take the cord out and it will boot from the battery.
When I called Samsung yesterday they suggested a hard reset. I did that without any luck. I'm taking the phone back to Best Buy today. I've had the phone for 3 1/2 months and I have the protection plan.
rechbo said:
After three months with my Note 2, I've started having battery drain issues. Thinking my battery may be bad, I bought a regular and an extended battery. My problem is that when I swap batteries, the device will not turn on unless I plug in the charging cord and the battery icon pops up. Is this normal? Is there a way to fix this? Thanks.
Click to expand...
Click to collapse
One thing I didn't see you mention was you are turning the phone off before swapping the batteries. If you are pulling the battery without properly shutting down the phone, then it's possible that the power button itself it faulty. If you typically pull the battery without properly powering down the device, then power up the device the way you've had success and try shutting down the phone through the Android OS.
larry_thagr81 said:
One thing I didn't see you mention was you are turning the phone off before swapping the batteries. If you are pulling the battery without properly shutting down the phone, then it's possible that the power button itself it faulty. If you typically pull the battery without properly powering down the device, then power up the device the way you've had success and try shutting down the phone through the Android OS.
Click to expand...
Click to collapse
Nothing worked, so I unrooted and took the phone back to best buy on Friday. My "new" refurbished phone is at the store waiting for me to pick up. I was only rooted for the last month, but shortly after rooting my battery life was horrible -- and then I wasn't able to swap batteries and boot without plugging it in for a second. Now that I'm running the stock rom, my battery life is back to normal. I also just tried taking the battery out and it boots up fine. Now I'm wondering if I want to get the refurbished phone, and if I want to root again.
first thing I ever do when having problems is odin back to fresh stock! Keep your device and refuse the replacement. I would not hesitate to reroot at all as rooting should have absolutely no impact on battery life. most likely something got corrupted in the software or you had a rogue app wake locking your device.

Dead i777???

Ok here is the issue...I have been having random reboots for a while( 3-6 months) thought it was just a dirty flash. I did a clean install of AOKP as suggested and the problem persisted. I thought well maybe the ROM just does't like my phone so I tried ShoStock, CM10, SlimBean, Xylon, and straight up stock...Well none of these helped, the more I researched my problem on XDA, Rootzwiki, and Google the more I saw that it was probably a power button malfunction. I sent the phone into mobiletechvideos.com to get the power button replaced, they probably did a great job from all the reviews and testimonials I've got from my other dev team (Team Passion FTW:]) but now every time I plug it into a charger it flashes the charging battery symbol two or three times and then stops. The phone won't turn on and I can't get to download mode/ recovery/ any mode... The phone acts as though it's just dead. ANY help or suggestions would be greatly appreciated!!
Thanks XDA community, you've helped me in the past let us figure this out together!!
mattytom87 said:
Ok here is the issue...I have been having random reboots for a while( 3-6 months) thought it was just a dirty flash. I did a clean install of AOKP as suggested and the problem persisted. I thought well maybe the ROM just does't like my phone so I tried ShoStock, CM10, SlimBean, Xylon, and straight up stock...Well none of these helped, the more I researched my problem on XDA, Rootzwiki, and Google the more I saw that it was probably a power button malfunction. I sent the phone into mobiletechvideos.com to get the power button replaced, they probably did a great job from all the reviews and testimonials I've got from my other dev team (Team Passion FTW:]) but now every time I plug it into a charger it flashes the charging battery symbol two or three times and then stops. The phone won't turn on and I can't get to download mode/ recovery/ any mode... The phone acts as though it's just dead. ANY help or suggestions would be greatly appreciated!!
Thanks XDA community, you've helped me in the past let us figure this out together!!
Click to expand...
Click to collapse
Did you let the bettery die? Have you tried a spare battery yet?
chapelfreak said:
Did you let the bettery die? Have you tried a spare battery yet?
Click to expand...
Click to collapse
I did let the battery die...I hadn't used the phone in over a month so the battery was drained, you really think the battery is dead enough to not hold a charge at all??
P.S. I don't have an extra battery on hand, is there a way to check without a battery to see if the phone is really dead??
Sent from my Nexus 4 using xda premium
it is a known issue that the phone won't charge or turn on if you let the battery completely die. I've had it happen to me, but I luckily had a spare battery laying around.
Sent from my SGH-I777 using xda app-developers app
I've heard of this method but I have not tried it myself. You take a piece or two of tape and cover the data pins on the battery. They would be the first and third pins from the left (the ones without the + & -).
Once taped, you put the battery back in the phone and charge it. The screen should do nothing. After about 15-30 minutes, remove the tape and plug in normally. Your battery should now have enough juice to operate normally.
Sent from my SGH-I777 using xda premium
Red_81 said:
I've heard of this method but I have not tried it myself. You take a piece or two of tape and cover the data pins on the battery. They would be the first and third pins from the left (the ones without the + & -).
Once taped, you put the battery back in the phone and charge it. The screen should do nothing. After about 15-30 minutes, remove the tape and plug in normally. Your battery should now have enough juice to operate normally.
Sent from my SGH-I777 using xda premium
Click to expand...
Click to collapse
Ok so I have determined it was the battery after using a battery of a friends phone. I have tried to cover up pins one and three but every time I plug the phone in it keeps flashing the battery sign and then shutting down.. I'm just wondering if this isn't going to work or if I should try the other pins?? I already ordered a new battery but I'm curious now how this is supposed to work.
I think the theory is that the phone is trying to read the battery but the battery doesn't have enough juice to provide the info. You block the data pins so only the positive and negative terminals make contact and you trickle charge it.
I've also heard of using a 9v battery to jump the battery. You just connect positive to positive negative to negative and pray neither one becomes a bomb in your face.
Sent from my SGH-I777 using xda premium
My phone is doing the same exact thing. The power button started acting up on my phone and then stopped working altogether. The battery died and now it won't turn or or charge, it just flashes the battery icon briefly then shuts off. I ordered a cheapo charger so I can see if charging the battery to full at least lets me turn it on. Please let me know if replacing the battery fixes things. I had this same problem with the battery about a year ago and it seemed to resolve itself after a few hours but that doesnt seem to be the case anymore after a few days it still won't work.
Yeh the battery's for these phones are odd. Some people can let their battery die completely and nothing negative will happen. Some let it die once and it never works again.
I've had this problem before. I wouldnt turn on completely, but if you plugged the phone in and powered it on in COMPLETE darkness, you can just see the backlight flickering on an off.
My way of fixing this was to plug the phone in the wall charger (without the battery) and then press and hold the vol down + power buttons (this is how you enter Download Mode) and then insert the battery while holding those buttons. It should power up into download mode. You just have to use something like Odin to return it to stock.
Now I know you ordered a battery already, but try this out to see if it works for you since you don't have the battery yet.
leo9891 said:
press and hold the vol up + down + power buttons (this is how you enter Download Mode)
Click to expand...
Click to collapse
This button combination will put the SGH-I777 into recovery mode, not download mode. I'd like to be nice about it if possible, but please be sure you are posting correct information. Otherwise, it can be very confusing for those who don't know the phone real well.
leo9891 said:
I've had this problem before. I wouldnt turn on completely, but if you plugged the phone in and powered it on in COMPLETE darkness, you can just see the backlight flickering on an off.
My way of fixing this was to plug the phone in the wall charger (without the battery) and then press and hold the vol up + down + power buttons (this is how you enter Download Mode) and then insert the battery while holding those buttons. It should power up into download mode. You just have to use something like Odin to return it to stock.
Now I know you ordered a battery already, but try this out to see if it works for you since you don't have the battery yet.
Click to expand...
Click to collapse
This is what is happening to me. If I plug it in I can see the the touch buttons on the bottom briefly flash and the screen flicker. It's as if its trying to start up but doesn't have enough juice. Unfortunately it does the same thing with the battery out and I am unable to get into download or recovery. Hopefully its just the battery.
Not sure if the OP made any progress but I was having the same problem and I bought a cheapo stand alone battery charger off of amazon and charged the battery for a couple hours and now the phone turns right on. Seems the other people in this thread are right about the phone being picky if the battery is completely drained. Here's a link to charger if anyone is interested. http://www.amazon.com/gp/product/B0081KRLMQ/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1

[Q] Phone died wont charge

Yesterday my dna died while at a dealership then I went to plug it into my car charger and the led came on to indicate charging. The phone automatically booted into the bootloader at which point I selected reboot phone and after that it went black as if there wasn't enough juice to boot and shut off. Since then the phone won't charge. When plugged into the wall, no orange led comes on to show its charging and after being left plugged in over night I'm still having the same issue.
I've got a lot of important things on there and I really hope there's something I can do.
Thanks :crying:
it may be in a boot loop try booting into the boot loader and flashing twrp then boot into it and let it charge
Sent from my Nexus 7 using Tapatalk 4 Beta
Make sure your cable isn't borked. For some reason, the cable wires break at the connector on the small end. Try a different cable. The orange charging light should come on after about 5-15 minutes of charging depending how dead it is.
zachf714 said:
it may be in a boot loop try booting into the boot loader and flashing twrp then boot into it and let it charge
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
At this point the phone is refusing to do anything or at least appears to be doing nothing. Pressing the power does nothing and when plugged into any power source no orange led. I don't know how I would boot into the boot loader while the phone is in this state.
superchaos said:
Make sure your cable isn't borked. For some reason, the cable wires break at the connector on the small end. Try a different cable. The orange charging light should come on after about 5-15 minutes of charging depending how dead it is.
Click to expand...
Click to collapse
Thanks. I've tried several cables and from different charging sources, wall, computer USB and my car and none make the orange led come on. I've tried holding the power for 20-30 seconds to see if I could reboot it but that didn't work either. The phone has never been dropped on anything but carpet once or twice and never near any water.
dev/null/ said:
At this point the phone is refusing to do anything or at least appears to be doing nothing. Pressing the power does nothing and when plugged into any power source no orange led. I don't know how I would boot into the boot loader while the phone is in this state.
Thanks. I've tried several cables and from different charging sources, wall, computer USB and my car and none make the orange led come on. I've tried holding the power for 20-30 seconds to see if I could reboot it but that didn't work either. The phone has never been dropped on anything but carpet once or twice and never near any water.
Click to expand...
Click to collapse
I have this exact same problem; however, my phone came back in a few days? It seems to get stuck like that every so often but then comes back and has around 30-40% battery left. I am about to lock it and put it back to stock and get a replacement.
Were you running any ROMs? I'm running a clean stock ROM.
Maybe try to open it up and disconnect the battery. This is a common pro let on the Nexus 7 and usually people get it fixed by disconnecting the battery and putting it back on. If you feel comfortable opening the phone you could try that.
Sent from my HTC6435LVW using xda premium
Salsbar said:
I have this exact same problem; however, my phone came back in a few days? It seems to get stuck like that every so often but then comes back and has around 30-40% battery left. I am about to lock it and put it back to stock and get a replacement.
Were you running any ROMs? I'm running a clean stock ROM.
Click to expand...
Click to collapse
I'm running stock rom with root and clockwork. I've had the phone like that since late December and nothing wrong until now. Now that you mention though, the same thing did happened awhile back but like you it randomly started working again on its own. I hope it comes back soon.
Jaggar345 said:
Maybe try to open it up and disconnect the battery. This is a common pro let on the Nexus 7 and usually people get it fixed by disconnecting the battery and putting it back on. If you feel comfortable opening the phone you could try that.
Sent from my HTC6435LVW using xda premium
Click to expand...
Click to collapse
I was going to disassemble it after finding a guide and almost purchased a replacement charging port for the phone thinking maybe it was broken or something but I may try that. Thanks.
dev/null/ said:
I'm running stock rom with root and clockwork. I've had the phone like that since late December and nothing wrong until now. Now that you mention though, the same thing did happened awhile back but like you it randomly started working again on its own. I hope it comes back soon.
I was going to disassemble it after finding a guide and almost purchased a replacement charging port for the phone thinking maybe it was broken or something but I may try that. Thanks.
Click to expand...
Click to collapse
Cool. Keep me updated. I'm very curious now.
When you hold down the power button for 10-15 seconds, do the led's on the bottom of the screen blink? I let mine drain all the way out. Plugged it in. the orange light was blinking slow. I held down the power button until after the led's blinked 13 times. I don't know why they blinked 13 times but they did. held down the power button again and it booted up.
When you connect it to your computer, is it found as a device through ADB commands? Is it listed as a drive attached to the computer?
Salsbar said:
Cool. Keep me updated. I'm very curious now.
Click to expand...
Click to collapse
Good news, I disassembled it and disconnected the battery from the mobo like another user suggested earlier and after putting it together and plugging it in it is charging and booted to recovery
superchaos said:
When you hold down the power button for 10-15 seconds, do the led's on the bottom of the screen blink? I let mine drain all the way out. Plugged it in. the orange light was blinking slow. I held down the power button until after the led's blinked 13 times. I don't know why they blinked 13 times but they did. held down the power button again and it booted up.
When you connect it to your computer, is it found as a device through ADB commands? Is it listed as a drive attached to the computer?
Click to expand...
Click to collapse
Prior to disassembling it no, the LEDs never blinked when holding it down and when I tried charging it through my computer USB port it was never detected. Everything seems to be fixed now but thanks for suggestions. I still don't know what happened but hopefully it was just a one-off thing
dev/null/ said:
Good news, I disassembled it and disconnected the battery from the mobo like another user suggested earlier and after putting it together and plugging it in it is charging and booted to recovery
So it does sound like a hardware problem. Maybe I'll return mine and get a new one.
Click to expand...
Click to collapse
Glad to hear your back up. Good job. It could also possibly be that the battery somehow got disconnected. I wouldn't return it unless it happens again. Just try not to let it die and I don't think it will happen again. Or if you drop it, it may also disconnect. But I wouldn't get a replacement unless the issue comes up again.
Sent from my HTC6435LVW using xda premium
If you get a replacement your phone will be unlockable.
Glad you found the problem.
For future reference, my experience when my android phone had died, always plug the phone into the wall. If not, it takes forever for the phones light to come back on. Its happened to me a bunch of times. Haha
Sent from my HTC6435LVW using xda app-developers app

[Q] P7500 wont boot only adx detection (bricked?)

Hi guys. Is there any fix for my P7500 tab?
It wont turn on, black screen, but can be detected by the computer via apx.I use to flash it via apx or nvflash but I it was locked tablet. Is there any ways to boot it up so i can flash it via odin?
Thank you in advance for the reply.
psychoneo said:
Hi guys. Is there any fix for my P7500 tab?
It wont turn on, black screen, but can be detected by the computer via adx.I use to flash it via adx or nvflash but I it was locked tablet. Is there any ways to boot it up so i can flash it via odin?
Thank you in advance for the reply.
Click to expand...
Click to collapse
So do you mean adb or apx?
Sent from my GT-P7510 using XDA Premium 4 mobile app
...
stinky73 said:
So do you mean adb or apx?
Click to expand...
Click to collapse
Oh sorry. APX i mean. my question above is now edited. Any idea sir? or i should brought it to samsung service center?
Maybe the only thing to try at the moment would be the old battery drain technique... Usual means is to tape down the power button and wait days and days until it is dead, really dead ( shows nothing when connected to computer), then connect to wall charger and reboot and see what you get. This is really the ultimate "hard reset" but same result can be obtained far more quickly by removing the back and disconnecting the battery for a while to remove residual charge... Not as frightening or difficult as it might seem, have done it loads of times for various faults and to replace batteries in several tabs.
Sent from my GT-P7510 using XDA Premium 4 mobile app
onoeowh eye
stinky73 said:
Maybe the only thing to try at the moment would be the old battery drain technique... Usual means is to tape down the power button and wait days and days until it is dead, really dead ( shows nothing when connected to computer), then connect to wall charger and reboot and see what you get. This is really the ultimate "hard reset" but same result can be obtained far more quickly by removing the back and disconnecting the battery for a while to remove residual charge... Not as frightening or difficult as it might seem, have done it loads of times for various faults and to replace batteries in several tabs.
Click to expand...
Click to collapse
thank you sir. Im doing it now. But Im a doing it correctly? i just connected it to the computer for apx mode then after that i tape the power button so that it continuously on and off for apx mode then i disconnected it to the computer or I should leave it stay? i think it will charge if i connected it to the computer.
If you're trying to discharge by taping down power button just leave the tab on it's own not plugged into anything... Plugging into something that charges rather defeats the object of the exercise
Sent from my SGP311 using XDA Premium HD app
Samsung Service Center
Thank you for the help. I think I need to bring it to service center. There's no battery charging icon when I charged it. I dont know if its well drain but I use a laptop cooling fan via OTG to drain it. the fan and the lights from the cooling pad is not functioning anymore so i try to plug the tab to the wall charger and nothing happens.
By the way thank you. :good:
Any luck?
psychoneo said:
Thank you for the help. I think I need to bring it to service center. There's no battery charging icon when I charged it. I dont know if its well drain but I use a laptop cooling fan via OTG to drain it. the fan and the lights from the cooling pad is not functioning anymore so i try to plug the tab to the wall charger and nothing happens.
By the way thank you. :good:
Click to expand...
Click to collapse
I'm facing the same issue now, i have taped my power and volume button for a day... will that work? Did you finally turn on your tablet?
omeshls said:
I'm facing the same issue now, i have taped my power and volume button for a day... will that work? Did you finally turn on your tablet?
Click to expand...
Click to collapse
In some cases it takes more than a day, be patient... Unless you are prepared to remove the back and unplug battery... The aim of the game is to completely power down the tab and remove residual charge in components, the "hardest" reset available.... So, two ways to achieve that is drain battery or disconnect battery... If you drain battery you must be sure it's empty to achieve desired effect then you obviously cannot restart it without charging a bit as the battery is empty, so you connect charger then try to boot, but the tricky bit is being sure the battery is completely drained otherwise you are just wasting your time... That is why battery disconnect is preferable
Sent from my SGP311 using XDA Premium HD app
How to disconnect battery
stinky73 said:
In some cases it takes more than a day, be patient... Unless you are prepared to remove the back and unplug battery... The aim of the game is to completely power down the tab and remove residual charge in components, the "hardest" reset available.... So, two ways to achieve that is drain battery or disconnect battery... If you drain battery you must be sure it's empty to achieve desired effect then you obviously cannot restart it without charging a bit as the battery is empty, so you connect charger then try to boot, but the tricky bit is being sure the battery is completely drained otherwise you are just wasting your time... That is why battery disconnect is preferable
Sent from my SGP311 using XDA Premium HD app
Click to expand...
Click to collapse
How do you disconnect the battery to discharge. I tried the taped power button for five days and it still seen by PC in Device Manager.
datastar said:
How do you disconnect the battery to discharge. I tried the taped power button for five days and it still seen by PC in Device Manager.
Click to expand...
Click to collapse
Suggest you go here http://forum.xda-developers.com/showthread.php?t=2325109 download the manual - then unplug the battery for 10 mins or so to remove any residual power, reconnect and see what happens
Good luck
Edit....I got beat to the post. I would follow the advice above first.
datastar said:
How do you disconnect the battery to discharge. I tried the taped power button for five days and it still seen by PC in Device Manager.
Click to expand...
Click to collapse
Look for some videos on YouTube because it involves removing the back of your tab. So see seeing it done is a great help.
Sent from my GT-P5210 using XDA Premium HD app
Happy camper iFixIt
stinky73 said:
Suggest you go here http://forum.xda-developers.com/showthread.php?t=2325109 download the manual - then unplug the battery for 10 mins or so to remove any residual power, reconnect and see what happens
Good luck
Click to expand...
Click to collapse
Many Thanks to You stinky73
I had to purchase an iFixIt repair kit to get the correct driver to remove the two screws. I disconnected the battery, waited ten minutes and when I reconnected I was SO HAPPY to see the battery charging icon. I charged for a while a fired up the tablet. Everything was the same as if nothing happened. I am so happy because Samsung said they could fix the problem and it would be a flat rate of $150 which I don't have and I would lose everything.
Many thanks
datastar said:
Many Thanks to You stinky73
I had to purchase an iFixIt repair kit to get the correct driver to remove the two screws. I disconnected the battery, waited ten minutes and when I reconnected I was SO HAPPY to see the battery charging icon. I charged for a while a fired up the tablet. Everything was the same as if nothing happened. I am so happy because Samsung said they could fix the problem and it would be a flat rate of $150 which I don't have and I would lose everything.
Many thanks
Click to expand...
Click to collapse
How hard was removing the back? I'm wanting to do some building for my 7510 and will be using it for testing so I'm most likely to brick it at least once or twice.
Hard screw removal
Benzoman said:
How hard was removing the back? I'm wanting to do some building for my 7510 and will be using it for testing so I'm most likely to brick it at least once or twice.
Click to expand...
Click to collapse
It took me longer to remove the screws then anything. I stripped them and will need to replace them. I tried a regular screwdriver before the tri-wing screw driver and paid dearly in time. Once the two screws were removed, use a plastic pry tool starting on the bottom where the screws are because once the bottom and sides are pried lose, the top will slide over the extended audio jack.
1.5 hours to remove stripped screws
10 minutes to pry open
1 minute to disconnect battery (did not remove battery or three data cables on top of battery)
10 minutes wait for discharge
3 minutes to re-connect battery cable (it slides forward and snap down)
2 minutes to replace case
datastar said:
Many Thanks to You stinky73
I had to purchase an iFixIt repair kit to get the correct driver to remove the two screws. I disconnected the battery, waited ten minutes and when I reconnected I was SO HAPPY to see the battery charging icon. I charged for a while a fired up the tablet. Everything was the same as if nothing happened. I am so happy because Samsung said they could fix the problem and it would be a flat rate of $150 which I don't have and I would lose everything.
Many thanks
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Click to collapse
Happy for you, it usually works!! :good:
stinky73 said:
Happy for you, it usually works!! :good:
Click to expand...
Click to collapse
Forgive the gravedigging, but I am unable to find anything regarding my situation, and the original poster has a problem that is similar to mine (my thread is http://forum.xda-developers.com/showthread.php?p=52931715 ). I hope someone is able to give me a hand here!
I am wondering, it has been over 15 minutes since I disconnected the battery completely, but connecting the P7500 to my laptop still shows an APX device being connected. Could there be some hardware issue preventing the device from being fully discharged?
Thanks in advance for any help!
Still no joy with waking the tablet up
Lightside said:
Forgive the gravedigging, but I am unable to find anything regarding my situation, and the original poster has a problem that is similar to mine (my thread is http://forum.xda-developers.com/showthread.php?p=52931715 ). I hope someone is able to give me a hand here!
I am wondering, it has been over 15 minutes since I disconnected the battery completely, but connecting the P7500 to my laptop still shows an APX device being connected. Could there be some hardware issue preventing the device from being fully discharged?
Thanks in advance for any help!
Click to expand...
Click to collapse
I've got the same issue as Lightside and the original poster. Mine is a GT-P7500, which had CM10 nightly ROM with CWM recovery. I sold it on eBay, but before selling, I wiped the tablet and got it back to the Clockworkmod main screen. I turned it off completely and shipped it to the buyer, ready for it to be registered by the new user.
The buyer received the tablet and from the e-mails I received from him in the first couple of days, all was going well. Then, a couple of days later, he sent me an e-mail saying that the screen shows the android lying on its back with "Odin download" mode showing. A day later, he sends me a messaging saying that he can't turn the tablet on at all. The guy who bought it is an old man and didn't know much about fixing the issue. I asked him whether he powered the tablet off while still plugged in to the wall charger and he confirmed that he did. I asked him to return it to me and I can try and fix it, so now, I have the tablet back and it won't turn on. Here's what is happening:
1. I drained the battery using the cellotape method
2. Installed the NVflash drivers
3. Waited for the battery to drain (almost 9 days and the LED flash stopped blinking, so assumed it was completely drained)
4. Plugged it in to the PC and it immediately showed up again as a device under the USB controllers within Device Manager
5. I then unplugged the battery by opening the back of the tab, left it for 15 mins, then tried the wall charger again, but nothing. No charging icon on the screen.
When I try to press the power button, I can see the LED light up, but the screen is still blank.
Could this be a hardware issue and if so, what do you think could have caused it?
Could really do with some help here, folks! I don't want to have to give the buyer a refund because technically, he got it when it was in working condition and he probably did something to screw it up, but since he's an old man, I thought I'd try and help him, if I can.
same to me
someshj1577 said:
I've got the same issue as Lightside and the original poster. Mine is a GT-P7500, which had CM10 nightly ROM with CWM recovery. I sold it on eBay, but before selling, I wiped the tablet and got it back to the Clockworkmod main screen. I turned it off completely and shipped it to the buyer, ready for it to be registered by the new user.
The buyer received the tablet and from the e-mails I received from him in the first couple of days, all was going well. Then, a couple of days later, he sent me an e-mail saying that the screen shows the android lying on its back with "Odin download" mode showing. A day later, he sends me a messaging saying that he can't turn the tablet on at all. The guy who bought it is an old man and didn't know much about fixing the issue. I asked him whether he powered the tablet off while still plugged in to the wall charger and he confirmed that he did. I asked him to return it to me and I can try and fix it, so now, I have the tablet back and it won't turn on. Here's what is happening:
1. I drained the battery using the cellotape method
2. Installed the NVflash drivers
3. Waited for the battery to drain (almost 9 days and the LED flash stopped blinking, so assumed it was completely drained)
4. Plugged it in to the PC and it immediately showed up again as a device under the USB controllers within Device Manager
5. I then unplugged the battery by opening the back of the tab, left it for 15 mins, then tried the wall charger again, but nothing. No charging icon on the screen.
When I try to press the power button, I can see the LED light up, but the screen is still blank.
Could this be a hardware issue and if so, what do you think could have caused it?
Could really do with some help here, folks! I don't want to have to give the buyer a refund because technically, he got it when it was in working condition and he probably did something to screw it up, but since he's an old man, I thought I'd try and help him, if I can.
Click to expand...
Click to collapse
i have a GT-7500 ,i used the original firmeware,it's the same issue,drain battery method not working,somebody help?

Not charging, cannot power on. Battery issue?

Dug out my trusty Z3TC 16GB WiFi to browse the web and its dead and refuses to charge on 4+ different chargers. Won't respond to power+vol up or show any activity.
Software was fine when I last checked, running CM12.1 and no issues.
Anyone see a similar issue and know if the battery is likely to have failed or something more fundamental?
I'm ordering a pogo pin charger to see if that works, had a couple in the past but the connecting wires in the stand broke.
belrik said:
Dug out my trusty Z3TC 16GB WiFi to browse the web and its dead and refuses to charge on 4+ different chargers. Won't respond to power+vol up or show any activity.
Software was fine when I last checked, running CM12.1 and no issues.
Anyone see a similar issue and know if the battery is likely to have failed or something more fundamental?
I'm ordering a pogo pin charger to see if that works, had a couple in the past but the connecting wires in the stand broke.
Click to expand...
Click to collapse
Happened to me. Try this: NEVER LET IT GO FULLY DEAD
https://www.ifixit.com/Answers/View/225037/No+Power+&+Not+Charging
Yup, saw that thread. Looks like I'm out of luck as I certainly can't resolder any of the components.
did u try with a quick charger?
Peace to all
I've tried most chargers and I have a lot of them, including original chargers for Z3 and Z4. Even trickling on a slow charger should recharge after 24 hours but nothing.
Wish I'd remembered to keep it charged, can't even get a bootloader up.
Try this??
Press the volume up button and power button together for 10 seconds. This should cause your device to vibrate 3 times and then show the battery charging screen.
Nope, I've tried all of these already. Probably need to open it.
weird dude.as far I know,li-on batteries need to fully discharged once in 30 charges.I made it once (it closed from battery) but nothing weird happened to me.I am always on KK 4.4.4
or u can try press the tiny reset button near to usb port.here says that nothing is being erased.
http://sony-xperia.mobi/eng/sony-xp...restart-button-on-sony-xperia-z3-compact.html
Peace to all
Good news! Thanks to everyone here who convinced me to persevere and not sell this tablet as broken!
For 4 days I have been charging the tablet and trying power+vol button combinations a couple of times each day and finally, on day 4, I was able to first get a red led. After the led went out about 10 mins later I tried vol+power again and got the emergency battery graphic plus red led. Led went out after ten mins again and had to use vol+power. Seemed to go a bit strange at that point and charging halted. Swapped chargers and waited.
Next time was the trick, got red led, it went out and I was able to get the normal, smaller charging graphic. Let it get a couple of % for safety and hit power, resulting in a full boot. Tablet is booted at 4% and charging OK.
Thanks to everyone that helped out.
glad to hear!so can u tell us the working process so just us to know just in case?....
Peace to all
kos25k said:
glad to hear!so can u tell us the working process so just us to know just in case?....
Peace to all
Click to expand...
Click to collapse
Exactly as per above, keep repeating the power & vol- sequence and putting on charger for a few hours. Exact brand of charger doesn't seems to matter, the one it worked on was a no-name two-socket UK plug charger from Amazon. Obviously a 2A+ charger will help. The cable used was a generic Samsung 1m (3ft) lead.
Just repeat the process and leave it on the charger in between. I'd recommend not charging a unit like this unattended in case the battery is damaged and there's a battery failure, I've seen a lipo fire and they're ugly.
Thanks dude!enjoy the best tablet! ?
Peace to all
Dude glad you got it working. I love mine but i have it rooted. hoping that the latest stamina battery return update is rootable

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