Hello!
ID: C5J8 BIOS: 2.05c
Symptom: if I shut down the tablet from Windows 10 or in Android 5.0 then I can't power on by button.
If I connect the USB cable afterwards it can be powered on random time - sometime after usb cable connect 5 minutes, sometimes more, it is very stochastic behaviour!
My question is: is it bug or feature? The reasen is settings in BIOS or what the hell, I dont understand? I have to tilt my family shut down the tablet, because they can't power on without me...
Do anybody have a good idea?
has nothing to do with windows or android for sure ... when the tab is in the S4 or S5 states the control of the tab is done by the BIOS firmware
1. do a restart/reboot from whatever OS and after that a power off and check whether is responsive now
2. do a forced power off (long press power btn until turns off) and check again
however if it did not show this behavior on your previous bios version then for sure is caused by something in the new bios (i would guess has something to do with the way the battery level is now detected, normally if your battery is below a level it will refuse to start, but if somehow the bios doesn't properly detect that...) maybe you can also try a 'load defaults' in the bios?
Have a look at this thread, it explains how the tablet determines when to turn on.
Dear wallabyman!
Thank you, it is very detailed and good post. I understand, and we can't do anything - it is a feature, but a very ugly feature from Teclast!
This time do you have any change in this operating? Could you power on by button after shut down?
*************************
ionioni
It has operated in the same way with the original BIOS too!
The reason why I found the linked thread was because I am experiencing some problems too, although not as bad as you describe them.
I am able to always turn on the tablet. If it does not turn on, I am trying the following things (in no particular order):
- Make sure tablet is really off and not stuck with black screen, by holding power buton for 10-15 seconds to do a hard powerdown
- attach a USB lamp to USB-host adapter to see if it is still powered on
- let it charge for about 30 minutes with original charger and original cable before trying to turn on
- not move the USB charging cable too much, my device seems very sensitive to small changes in the USB charging connection. I have the tablet lying flat, and try to power on without touching the cable if it is charging at the same time
- set quiet boot to off in Bios to see the red AMI logo
a minor aspect:
- if the device is charging and I press the power button only once, the Bios boot screen will appear together with the battery, but will not boot until the power is pressed again and battery charge is sufficient
Sleeping:
- putting the device to sleep from Android (sikke1s ROM, not for your device) and waking up again seems to work perfectly for me now.
- with Windows I still have big issues, trying to narrow it down currently
- from the shutdown state I can always boot up within a few tries (press the button not too long or to short, try hard power off even if it appears to be off and again)
Related
Let me start by saying, Power + Home does not work. Yes, really. I know there are a dozen threads about Touchpads not turning on, and they all have "Hold power and home for 20s" as the reply. Please don't respond with "Hold Power and Home for 20s". I have tried it.
Background
I took my Touchpad with me on a road trip. I did not have an official car charger, but I had one rated at 1 amp. I used this charger with my Touchpad, and it said that it was not powerful enough (as expected). I figured I would let the Touchpad at least get some juice while it was not being used. The battery steadily drained over the next couple of days, to the point where the screen did not come on. I assumed this was because the Touchpad was completely drained.
Once I got to a location with an actual outlet I used the original Touchpad wall adapter and let it charge for a few hours. The screen still did not come on, and there was no response (sound/light/vibration) from any buttons. I let the Touchpad continue to charge over night with the same result.
The Touchpad has alpha 2 on it.
What I have done
I have tried:
Power + Home for 15s
Power + Home for 30s
Power + Home for 1min
Power + Vol Up for 15s
Power + Vol Up for 30s
Power + Vol Up for 1min
Power + Vol Up + Home for 15s
Power + Vol Up + Home for 30s
Power + Vol Up + Home for 1min
All of the above with and without the Touchpad being plugged in to the wall and PC.
Trying WebOS Doctor (does not recognize a device)
Trying novacom directly (does not recognize a device)
Letting the Touchpad charge for > 1 day and repeating all of the above
Letting the Touchpad sit on the Touchstone for > 1 day and repeating all of the above
Verifying that the AC adapter is secured properly and repeating all of the above
Changing the USB cable and repeating all of the above
Changing the AC adapter and repeating all of the above
Results
The only time I have gotten any indication that the Touchpad is actually doing something is when using Power + Vol Up (and Vol Down) with the Touchpad connected to the PC. Vol Up has the Touchpad recognize as Palm. Vol Down has the Touchpad recognize as QHSUB_DLOAD. If I have the Touchpad connected to the PC in one of these states, Power + Home will reset the device (and Windows will not recognize it until I use Power + Vol Up/Down again).
That is the only response I get from the Touchpad. Anything else I have tried results in nothing.
My current plan is to attempt to let the battery completely drain, and then charge it again. I was previously under the impression that my Touchpad was out of power, but the testing with Vol Up/Down has shown me otherwise. My hope is that losing all power will truly "reset" the device.
Does anyone have any advice on anything else I should try? Is there a way to recover the Touchpad via booting it as Palm or QHSUB_DLOAD?
Volume Up + Power while connected to PC, then run WebOS Doctor?
You may have done this, but have you tried pressing home first and then holding it and power together? I couldn't get mine to start by pressing power and then home, but when I held home first and then power it came right on. If you have done that then disregard this, but if not I hope it helps.
Another method
Try power and Volume down. Hold for a minimum of 30 seconds before giving up. It has worked twice for me when all else failed.
FishDoc
That was very thorough. Once my TP died completely. I plugged it in and it didn't do anything. When I held Power + hitting home 15 times, it would give mea low battery indicator.
I plugged it in and left it over night. By the morning it was on 100%.
DJ_SpaRky said:
Volume Up + Power while connected to PC, then run WebOS Doctor?
Click to expand...
Click to collapse
It may not have been clear since it came after the list, but I did try this. WebOS doctor does not recognize the device in any mode. I do not know if this is simply because I lack the necessary drivers when it is in one of the other device modes. On the off chance that I didn't I will try again when I get home.
Dbarker 2 said:
You may have done this, but have you tried pressing home first and then holding it and power together? I couldn't get mine to start by pressing power and then home, but when I held home first and then power it came right on. If you have done that then disregard this, but if not I hope it helps.
Click to expand...
Click to collapse
I do believe I have tried this, but I will try again when I get home.
FishDoc said:
Try power and Volume down. Hold for a minimum of 30 seconds before giving up. It has worked twice for me when all else failed.
FishDoc
Click to expand...
Click to collapse
It is my fault for leaving it out, but I tried this after exhausting the other options.
chrischoi said:
That was very thorough. Once my TP died completely. I plugged it in and it didn't do anything. When I held Power + hitting home 15 times, it would give mea low battery indicator.
I plugged it in and left it over night. By the morning it was on 100%.
Click to expand...
Click to collapse
I really wanted to avoid the slew of "Hold power and press home!" comments and the followups telling me to hold it longer, hold volume, and all of the other normally recommended fixes. I know how to write a bug ticket or two. I'm also the type of guy who posts a followup with what actually fixes the problem (No "nm, fixed it" from me).
It sounds like my current plan of action is going to mimic what you did. I originally thought the Touchpad was getting no power, so I kept trying to charge it. Now I am waiting for it to lose all power, so I can repeat the process after the device (hopefully) resets. I'm not sure how long that will take since I cannot actually use the device to drain the battery.
Thanks for the responses. Some replies are better than no replies.
So i had a similar situation and tried everything you had mentioned and all the suggestions in the thread. Nothing. No power, completely dead. I even left it
overnight on the charger... nothing. For sure i thought I bricked it. Then, I read online that someone tried the following:
Press and hold Power + Volume Up and click the card (menu) button a thousand times.
Wow! It worked! The TP is alive! In actuality, it only took about 30-50 times (not a thousand) of pressing the menu button while holding power + volume up.
I then got the white USB icon in the middle of the screen and then pressed and held the power + menu button to reboot.
What I did find interesting though is the battery was almost discharged even after having it on the supplied charger (not touchstone) overnight.
Anyway, hope this resolves your issue as well.
No go with Home + Power, Power + Vol Down, Power + Tapping Home
suremail said:
No go with Home + Power, Power + Vol Down, Power + clicking Home
Click to expand...
Click to collapse
Just making sure you read it right since you didn't list it above.
Power + volume up + clicking home button repeatedly.
All 3, same time. Just trying to help.
^ worked for me..thanks
Sent from my HTC Inspire 4G using XDA App
Well this is a really strange one...
Touchpad was completely non-responsive, I'd tried everything above about 5 times and it just wasn't showing any signs of life. I have left it charging all day today.
Assuming it was completely dead, I sat it down. 5 minutes later, it inexplicably just started booting up.
Wish I knew what I did, if anything to make it boot.
I am having the same issue but what got me there was trying to restore my Touchpad via WebOs Dr. It would restore to like 60% or 80% and then say we were unable to reset your device. It kept failing and no ROM was on my the device anymore. When I hold Power+Vol Up+ Home I can hear my PC detect it but that is all it does.
When I get home tonight I am going to try some of the things in this thread.
But what if I cannot get it into recovery? I read that it is near impossible to brick a Touchpad. How can I still recover without getting into recovery?
http://forum.xda-developers.com/showthread.php?t=1394061
Phillip Fry said:
I am having the same issue but what got me there was trying to restore my Touchpad via WebOs Dr. It would restore to like 60% or 80% and then say we were unable to reset your device. It kept failing and no ROM was on my the device anymore. When I hold Power+Vol Up+ Home I can hear my PC detect it but that is all it does.
When I get home tonight I am going to try some of the things in this thread.
But what if I cannot get it into recovery? I read that it is near impossible to brick a Touchpad. How can I still recover without getting into recovery?
http://forum.xda-developers.com/showthread.php?t=1394061
Click to expand...
Click to collapse
not near impossible. I actually bricked mine and had to send it back for RMA.
it got to the point where the hp screen will show, and webos doctor will detect it, but it'll fail when trying to reinstall at about the same percentage as you (maybe less).
menting said:
not near impossible. I actually bricked mine and had to send it back for RMA.
it got to the point where the hp screen will show, and webos doctor will detect it, but it'll fail when trying to reinstall at about the same percentage as you (maybe less).
Click to expand...
Click to collapse
Well I installed Android uninstalled it. Then installed it again and forgot mboot then uninstalled it. So I belive I am back to stock but I wanted to upgrade to 3.0.4 then install Alpha 3.5 as I has having problems with the Touchpad rebooting in both Android and WebOS.
So when do I know if it is bricked. And what do I say to customer support to get it fixed? I just bought the Referbed ones off ebay the other day.
Here's an update...
No luck with anything so far. I caved and decided to take the Touchpad apart to disconnect the battery. I did this and still no screen response. The only changes have been it's a bit more difficult to get it into Palm mode (if it does at all), and now it seems that I can get into QHUSB mode just by repeatedly pressing the vol- button (no need to hold anything else). I do not know if the QHUSB thing was like that before disassembly, or if it is a result of me mucking around.
Unless anyone has any great ideas it looks like I will have to hope HP fixes it in order to tell me it is out of warranty for having Android.
If you send it to Hp and If they can't power it on, I'd say they would definitely replace it. Problem is, I doubt they have any more TP's in stock. Not sure how the warranty would work now being that its a discontinued product.
Hopefully after toying with it enough you'll figure it out and get it powered.
Mine is stuck in download mode too. Still no success.
Here's my experience so far.
Black screen.
When connected to PC :
Home + Vol UP - Device Manager shows PALM (with yellow exclamation) - no driver found.
Vol Down (no need to press home or power) - Device Manager shows QHSUSB_DLOAD (with yellow exclamation) - no driver found.
WebOS Doctor fails to detect device (palm ! in device manager)
I tried forcing novacom drivers on the Palm device (both novacom and novacom-bootie) and then running WebOS Doctor, still refuses to enable next button.
Tried connecting with novaterm, cannot find device. (both novacom and bootie driver).
Power + Home for 15 - 20 secs always resets and clears device from device manager.
I installed QHSUSB Drivers.
now when I Vol Down it installs as a com port (Qualcomm HS-USB QDLoader 9008).
I installed QPST_2.7.323 and am able to see the device as Q/QPC-XXX - ESN=*Download* - Phone Number=*Download* - Banner=*Download*.
I tried resetting the device with QPST, fails to complete the command.
I think I need a new boot.hex to flash to the TP, or a way to force it to charge (if that is the problem).
My Touchpad was low on power when I put it away in the car while on a road trip. I plugged it in to the wall the next day when it wouldn't turn on. After charging overnight, it still refused to power on. That's when I started combing the web for possible solutions.
Please stop posting irrational solutions, such as Power + tap home 5,000,000 times as the few times this did work for others, it was merely coincidence, and power + home would have worked also.
Any rational solutions are welcome.
I may just send it in for warranty. Although I bet that at HP, they will just hook it up to a machine with "special" drivers and re-flash it with Web-OS. I wish they would just let me do the repair myself with the appropriate files.
Who knows, maybe it is a hardware issue, but I doubt it.
I'm having the same problems too. What happened on mine is that my webOS was crashing doing random things like watching videos so I figured I'd just reflash the whole thing. I rebooted and went into the webOS recovery and that's when I think I bricked it. All I got was a USB cable symbol and the touchpad was unresponsive. I couldn't make it do anything and I tried all the appropriate button holding combinations and so I let the power run out over night.
Now when I plug it into the wall all I get is a low battery charging symbol. If I hold the home+power button down the screen will turn off after about 20-30 seconds of holding it down. But when I try to boot into recovery by holding the power+volume up buttons, all I get is the same low battery charging symbol. I'll add that I have had it charging for most of the morning so I don't think it is low battery still. And when I unplug it from the wall I get a symbol of two pronged plug that shows for about 5 seconds and then disappears.
Now when I plug it into the computer, I get the low battery charging symbol for a quick second and then it flashes to the message telling me "To reliably charge, use the cable and power adapter that came with your device" in 5 different languages. When I run webOS doctor I get to the screen where you connect your phone to the usb but it doesn't recognize anything and doesn't let me click next. I was able to have my computer recognize the power+volumedown button as the weird Qhusab thing but my computer said it couldn't find any drivers for it. Now I am not able to reproduce that.
I'm not sure what else to try so if anyone has any suggestions, that would be great. Otherwise I'm going to have to try my luck with HP support.
skiinginstead said:
I'm having the same problems too. What happened on mine is that my webOS was crashing doing random things like watching videos so I figured I'd just reflash the whole thing. I rebooted and went into the webOS recovery and that's when I think I bricked it. All I got was a USB cable symbol and the touchpad was unresponsive. I couldn't make it do anything and I tried all the appropriate button holding combinations and so I let the power run out over night.
Now when I plug it into the wall all I get is a low battery charging symbol. If I hold the home+power button down the screen will turn off after about 20-30 seconds of holding it down. But when I try to boot into recovery by holding the power+volume up buttons, all I get is the same low battery charging symbol. I'll add that I have had it charging for most of the morning so I don't think it is low battery still. And when I unplug it from the wall I get a symbol of two pronged plug that shows for about 5 seconds and then disappears.
Now when I plug it into the computer, I get the low battery charging symbol for a quick second and then it flashes to the message telling me "To reliably charge, use the cable and power adapter that came with your device" in 5 different languages. When I run webOS doctor I get to the screen where you connect your phone to the usb but it doesn't recognize anything and doesn't let me click next. I was able to have my computer recognize the power+volumedown button as the weird Qhusab thing but my computer said it couldn't find any drivers for it. Now I am not able to reproduce that.
I'm not sure what else to try so if anyone has any suggestions, that would be great. Otherwise I'm going to have to try my luck with HP support.
Click to expand...
Click to collapse
Having the EXACT same problem....anyone have any solutions to this? WHy is this happening?
It's a long shot, but it might help if you are getting to the USB symbol on the Touchpad .
I spent hours trying to connect with no luck with the Touch pad in that state. I rebooted my PC and it connected to the TP right away. (I was using a Win 7 64 bit PC.)
Hello. This morning I've turned off the alarm, turned on WIFI and went back to sleep. I can't tell for sure, but I think the battery was low. During the next 2 hours I checked the time several times. I don't remember accepting any OTA. Eventually I got up, tried to check the time and the phone was off. I tried to turn it on, no effect. No matter how many times and for how long I pressed and held the power button, the green LED only flashed for a split second and that's all. I plugged in the charger, and the LED stayed lit -but- there was this barely noticeable flickering. Charged it for about 30, 60, 120 minutes, didn't start plugged or unplugged. I went to work, 8 hours later (phone was unplugged) I tried to turn it on again, this time the LED doesn't even flash, but when charging there is no flickering. No combination of buttons works. Windows doesn't find the device, neither does RSD.
I've never done anything 'custom' to the phone. The last change I made was setting the alarm to turn off by shaking (yesterday, never used this option before).
Is it dead?
Try taking SD card out and holding Vol down and then Power for 20 secs, then let go of Power,
Already done that, nothing. No matter how long I charge it now, after unplugging and pressing power button the LED doesn't even flash. Could it be a battery problem (before its death, it would last for a day)? Is there any way of recovering my data without buying a new one?
Try opening and disconnect battery for a bit.
I'll do that as a last resort, on weekend maybe since I don't have the tools with me. Any other clues?
Nobody knows how to help me?
I'm going to make a factory cable. Will this alone allow me to recover the data? Or if I'll be able to flash the phone, can I recover the data afterwards?
Also, I'm not sure if I understand correctly: does the factory cable recharge the battery or not? Is there a way to recharge it when removed from the phone?
Try to use medfield unbrick script. If You have only green led it seems to be bootloader error so this script should bring Your phone to life or Your phone has broken emmc and You can start looking for a new logic board. Good luck.
I've installed the drivers, but Windows and XFSTK don't recognize my device at all. Factory cable also didn't help. I liked my phone very much. :angel:
Did You enter medfield mode using combination with camera button??
By a combination you mean holding the camera button and connecting the phone to a pc? I tried that.
Disassembe Your phone, pull out battery, push power button for a 10 sec, plug in battery, push camera button and connect USB. If it wont help You I don't see any hope for Your phone.
Well, new option to try is a new hope. I'll try that on the weekend. Could you please be more specific:
1. Pull out the battery.
2. Press the power button and wait 10 seconds.
3. Insert the battery: should I be still holding the power button at this moment?
4. Press the camera button.
5. Plug in the usb cable (factory? regular?) - should I be still holding the power and camera buttons?
Battery trick is only to discharge capacitors. Sometimes even phone is dead it can turn on in some strange mode and then You can't boot it to flash. Thats why You need to pull out battery, push power for a few sec to completely discharge motherboard and just release this button. After that You can just plug in battery and continue normal unbrick process - so hold camera button only and connect regular usb cable.
You can also try reset option instead of pulling battery out. To do that do not disassemble Your phone but just plug in regular USB, when phone starts (green led) hold power and vol- until green led goes off and then quickly start holding only camera button.
I have no more ideas.
Ok, I've tried everything. Nothing brought my phone back to life.
Thanks for all your help.
hi everyone
I bought a Z3c but won't turn on, but when charge it is on!! displays sony logo, and battery level and then turn off D=
I have pressed the power botton many times, but it was not power on
The battery was 100%, still I put it on charging, but it is showing charge light.
charging it and power on (on sony logo or battery icon(?)) then vibrates 3 times and power off, no responses I have disconnect and connect one more time and every time is the same; also I tried at the same time press and hold power & volume up for 10 seconds. and press and hold power & volume down for 10 seconds, in both cases the phone turn off, and i can't power on
I connected on PC, and then led is on red-green, immediately the led turn off but the pc PC recognize like SOMC DEVICE, and flashtool says "Device connected in flash mode", and no hold volume down, automatic is in flash mode.
I tried connect to pc holding volume up, but nothing happens
- - -edit - - -
i Connect the phone to a wall charger and press and hold power & volume up/down and vibrate 3 times reboot, but always the same result some seconds on battery icon and then power off
- - -edit - - -
- - -edit 2- - -
some minutes after connected on pc, phone change to fastboot mode o_0 without pressing volume up button
any one have a img file for kernel for 1282-2729_23.4.A.0.546
- - - edit 2---
please help me!!!
sorry for my bad english D=!!
i hope you understand me
Make a repair with pc companion
mariosraptor said:
Make a repair with pc companion
Click to expand...
Click to collapse
I tried this but the same result
A panacea for your device.
For those coming to this post in search of an answer to their seemingly dead device.
After looking at Sony's support website, the answer I found was to hold the OFF button inside of the Micro-SD/SIM cover for a total of 2 minutes (120 seconds).
This is tricky for some users, due to the length of time involved.
It is important that the OFF button remain held for the full duration of time.
After this, your device 'should' power on normally by holding the power button.
This worked for me, and I hope it will work for you!
Thumbs up and stuff if this helps~!
Hi,
My techlast won't turn on anymore. The power button does nothing, no matter how long I press it. Also pressing power and volume + of - doesn't do the trick.
This thursday I upgraded to Windows 10 and installed bios v2.02 plus lollipop using 'mirek190_rom_v5.0 - android Lollipop.' All went well, I could boot Windows 10 as well as Lollipop. Booted several times and switched operating systems.
Then from lollipop I chose to boot into Windows. After using Windows I shutdown Windows and it shut down normally.
Then the thing died or something, it just does not respond to anything anymore. When charging I do feel that the tablet is a bit warm, but it just does not respond to the buttons on it anymore.
Is there anything I can do besides keeping it as a coffee coaster? I have looked at how to unbrick the tablet on these forums, but I just turned it off and it was not bricked during flasing or anything. Oh, it's a c5j6
It works again!!
I connected the teclast to my laptop with USB and pressed the power button for 30 seconds (I read that somewhere). Nothing happened... Then I disconnected it from my laptop, and pressed the on button for like 7 seconds... just for the sake of it.... And...YESS, normal boot screen, chose Android and everything works! Very happy
Holy crap, I did exactly what you did with my X98 Plus — and it also worked! I've no idea why. My tablet is almost new, had it for a month or two and used it for like 15-20 hours in total, no gaming and other heavy stuff. It was ~90-95% charged yesterday, I didn't install anything new, just put it to sleep (short press of the power button) yesterday from Win10, and it won't turn on today. Tried holding the power button for different amounts of time, tried charging it with different chargers (both the charger and tablet were always cold though). Nothing. Then found your post and did the same thing, connected to a laptop, power button for 30 sec, then disconnected and power button for 5-7 sec.. And it turned on!
What's the logical explanation here, why did it turn on after that? Something to do with the laptop's usb power? Mine had a usb3 port, so it should be quite "beefy", probably the same current as some of the chargers I used before. Something different about laptop usb ports that I don't know about?
Thanks
Hi,
My Mi5 won't start now. It was having about 60% when I switched on NFC for the first time. I may have switched the NFC on and off a couple of time. Then I inserted the phone into its case , and by mistake the wrong way which might have pressed the power button / volume button , while I was inserting the phone into the case I noticed the phone was turning off. Quickly I realized the phone went the wrong way into the case and I removed and reinserted it and then pressed the power button, but nothing happened. Tried pressing volume up / down / power button but no use. But the phone was warm.
Now, the only sign of life in the phone is when charging it using the regular original charger. The light is initially purple and then turns to green but then it switches off. Tried connecting it to laptop but does not show anything. Also, the safe mode boot method does not work. So, the phone does charge but pressing power button does not turn it on but just makes it warm (some kind of startup loop)
I've been using the phone for last more than 2 years and it has original setup and updates are automatic and regular.
Just don't want to trash the phone if it can be revived.
Looking for advise.
Thanks