Hi,
my dear D4 falled down from my jacket, after it doesn't want to power on. I tried to remove the battery and boot, but it freeze on motorola dual core technology screen. I tried to boot with the wallcharger (and battery on) but after this screen the phone simple reboot and come back to motorola dual core screen. What could i do to get it back?
It has CM12 and safestrap on (perfectly work before it fall down)
After come times without battery on, i retried to attach it and connect the wallcharger. The phone, after motorola dual core screen, show a "?" inside the battery (on battery charging screen)
It looks like phisical damage
Can you load Fastboot option ? (Hold volume up, down and power button when your phone is off)
Fervi
Related
Hiii
I just want to confirm that weather it's normal or not?
1. When ever I connect my phone to power (While phone is switched off) USB/AC phone boots up to safe strap choice menu automatically without pressing any button & I can go to safe strap menu by pressing settings button or boot normally to phone. If i don't do any thing it goes to charging mode.
2. When I connect to AC power & at that time even if battery is not there in phone, it will boot to safe strap choice menu but wont boot further. whatever i press it will just boot again.
3. While connected to AC power after booting into safe strap even if I remove battery, safe strap works fine. I can browse through menu etc.
If that be the case then may be phone can also work like that with some tweaking, so for people like me who are most of the time working on laptops, they can connect their phone to charger cable whenever possible & reduce use of battery. It will increase the battery life also.
My phone battery died and the phone got switched off, now its not switching on even after charging through wall charger. When I try to reset the phone by pressing volume up + power on button/volume up+down+power on button after about few seconds the white screen with htc logo and powered by android comes up for few seconds and goes black again.
When I press volume up+Down+Power button for more time the white screen appears multiple times but phone doesn't boot. I can see the black screen battery charging animation, battery charge percentage and steady orange light when connected to the wall charger.
Please help me, if anybody has a solution to bring back the phone to life.
After few attempts of different combination of power up + volume down + volume up buttons I could get into the bootloader screen, when reboot and other options didn't work. I reset the phone and it came back to life, but lost all the data on the phone memory.
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)
I was messing around a bit the other night with the build.prop trying to get a bit more performance out of the tablet, then rebooted - and it appears to be barely hanging onto life now - it will not boot, I can't get into recovery mode, can't get into safe mode, and I can't get into download mode. Since it is not powering up - the computer, ODIN, or ADB are unable to find it.
when the battery of totally dead, and I plug it on - the battery charging thing pops up, with a 0Q% percent battery - and it will charge at that point - I tried to boot it once it was around 20%, and the Samsung logo popped up like it was going to start, and then everything went dead again.
I have on the tablet:
TWRP Recovery
rooted
cyanogenmod 13 with nightly builds
Things have been working great for the past 5 months, up until this issue.
So I don't know at this point if I am deal with a bad battery issue (Not holding enough charge to boot the tablet) or a software / hardware issue - or it is all software problems with the build.prop
I have talking to a person that does JTAG, and he did not think it was a software issue - he was kind of leaning towards it being a power issue - just based on the battery going from 20% down to 0% with the tablet not even turned on - and that it would not help things to have it JTAGED.
so some though - what could it be? and how do I go about getting the tablet up and working again.
The battery thing does make some sense - but to have it happen right when I making changes, and the reboot - is strange.
I am using the original charger, and the original cord.
FIXED
Hopefully this will be of some to you guys out their with your phone or tablet stuck on the Samsung logo - after the tablet sitting overnight on the logo - I started playing around, and found that by pressing the home button and volume down for about 5 minutes, it would shut the screen off, but only for about a second - but if during that second, if you released all the buttons, and did the home, volume down and power, if will reboot into download mode - took several tries to get everything done that quick, but it is possible, and that's how I got the tablet up and working again.
W7SOT said:
Hopefully this will be of some to you guys out their with your phone or tablet stuck on the Samsung logo - after the tablet sitting overnight on the logo - I started playing around, and found that by pressing the home button and volume down for about 5 minutes, it would shut the screen off, but only for about a second - but if during that second, if you released all the buttons, and did the home, volume down and power, if will reboot into download mode - took several tries to get everything done that quick, but it is possible, and that's how I got the tablet up and working again.
Click to expand...
Click to collapse
If you hold Home, Vol down and Power for about ten seconds, it should reboot the tablet. As soon as the green screen appears, release the buttons and press Vol up, and you should be in download mode. Or, better yet, if you have TWRP installed, hold Home, Vol Down and power and as soon as the screen turns black, switch from Vol down to Vol up and when the Samsung logo appears, release the power button. That should put you in TWRP where you can restore a backup.
I've got an SM-T800 behaving very oddly, hope someone knows what's up!
If you attempt to boot it, it will flash up the Samsung logo, then die, and repeat in an endless boot-loop.
If you hold the power button down, oddly, it changes; instead it will proceed to the animated SAMSUNG logo which will then continue to pulse in and out indefinitely until you get bored and release the power button... at which point it instantly dies and then begins boot-looping again.
If you try to enter recovery by holding power + volume up + home, it will do so, but the moment you let go of the power button it dies.
Thinking it was down to the battery, I tried replacing it, and if anything the behaviour has been worse since!! It was at least possible previously to get the thing to sit in recovery without rebooting, but now it never does if you let go of the power button.
I've also tried reflashing the default firmware via ODIN; the one thing that always works is the download mode (power + volume down + home); I can reliably boot it into download mode and flash via ODIN, but then on reboot, it gets partway through the installation process (like a few seconds in) and then boot loops back to the samsung logo again.
Now it's difficult to get it to even charge; it will keep looping the charging symbol (battery with a lighting bolt on it) on and off the screen unless you fettle the buttons until it just sits at a black screen. I can see from the USB charger it is still drawing charge current.
Any ideas??!
It probably dead. Speaking as someone who had this issue for countless devices, I say that your battery probably can't hold enough charge anymore to completely power the device through.
It doesn't matter even if you charge it to 100%. The battery had degraded to a point where a minimal charge required to let the device pass the crazy power surge required during Android boot is just not meeting the minimum.
Hence it fizzles out. And rebooted.
I kept replacing my Galaxy S5 battery until few months ago, no battery I bought is enough to fully power it on anymore.
Thanks for the response; alas, I already tried replacing the battery; if anything it was worse! I suppose it is possible that the replacement battery was also a dud, though? Unfortunately it may be difficult to do a load test (a lot of batteries might not even provide power without specific conditions being met), perhaps I can probe the pins while it tries to boot and see if the voltage sags or something.
I have the same problem and I found this in Yoube; search for "Samsung galaxy tab s restarting issue" video from "Electronics repair school"
It shows bad contact on battery connector soldered side...
I have the same issue, I can hold down the power button and it will boot up completely. As soon as I let go, it reboots over and over again. So far I've replaced the:
USB Charger Port Connector Module Flex Cable
LCD Connector Flex Ribbon Cable
and the Battery
No change in boot up - The only option left , I think, would be to replace the main board. Any thoughts?
i got that issue too,
i did kind of a battery recalibration
meaning: i fully discharged my sm-t800 (took me some time doing reboots until the tab was totally dead)
then charged it to 100% without booting it
unplug it and reboot.
and well, now it works again
the clue here is:
the system stored wrong battery data over the time, so it randomly thinks the battery is at 0% and does an auto-shutdown. To repair this, you have to reset the system with recalibrating the battery, so the system deletes all old data and starts logging new data.
in my case this procedure worked out great
hope you guys will have the same success as i did
Hello everybody!
I thought I would let you know how I solved this issue WITHOUT having to do a full factory reset...
Or so I thought.
Turns out that it started shutting down and bootlooping after a while again.
Even after I ordered a replacement battery and charged that up. At first it looked like it would work and then it started shutting down randomly and bootlooping.
Probably will have to throw the thing out since it doesn't want to work. Makes no sense how its so uncooperative even after putting in a new good battery in the tablet but there's not nuch more that can be done.
If I just start it *sometimes* it will boot up and get to the android OS. Then work for a while before shutting down.
Sometimes it just bootloops at the Samsung Galaxy S logo over and over.
Holding the power button it does boot but if you release the button it MOST often just shuts off and bootloops.
Anyone know if there's anything to be done to fix this?
//Kindest regards XDAFan2015
xdafan2015 said:
Hello everybody!
I thought I would let you know how I solved this issue WITHOUT having to do a full factory reset...
Or so I thought.
Turns out that it started shutting down and bootlooping after a while again.
Even after I ordered a replacement battery and charged that up. At first it looked like it would work and then it started shutting down randomly and bootlooping.
Probably will have to throw the thing out since it doesn't want to work. Makes no sense how its so uncooperative even after putting in a new good battery in the tablet but there's not nuch more that can be done.
If I just start it *sometimes* it will boot up and get to the android OS. Then work for a while before shutting down.
Sometimes it just bootloops at the Samsung Galaxy S logo over and over.
Holding the power button it does boot but if you release the button it MOST often just shuts off and bootloops.
Anyone know if there's anything to be done to fix this?
//Kindest regards XDAFan2015
Click to expand...
Click to collapse
I have had the same experience with my T800. What I have been doing is to tape the power button down using scotch tape. The tablet can be waken up by pressing the home button. In my case, I need to remove the button to recharge the tablet.. So far so good.