Develop Bugs

[Q] my device does not start !

Hi
My tablet was OK since a few days ago, not rooted, nothing strange installed on it.
For a few days, the device (turned off I suppose) does not display anything or even respond (haptic feedback) at all when I plug it on the USB cable. The screen keeps being blank (actually black...).
I tried to keep the "vol+ + power" buttons pushed for a while, but not lucky, it's really such as the device USB connector is KO. Is it possible ? I do not see anything strange when I look at it...
Is my device dead ???
Do you guys have any idea of how I could make it work again ?
Thanks
Nico

nicopilami said:
Hi
My tablet was OK since a few days ago, not rooted, nothing strange installed on it.
For a few days, the device (turned off I suppose) does not display anything or even respond (haptic feedback) at all when I plug it on the USB cable. The screen keeps being blank (actually black...).
I tried to keep the "vol+ + power" buttons pushed for a while, but not lucky, it's really such as the device USB connector is KO. Is it possible ? I do not see anything strange when I look at it...
Is my device dead ???
Do you guys have any idea of how I could make it work again ?
Thanks
Nico
Click to expand...
Click to collapse
Try holding volume down+power to get into download mode. If you can get there then it can be saved. Look in my signature for links to flashing stock firmware and more for a solution :good:
Sent from my Nexus 4 using Tapatalk
---------- Post added at 02:59 PM ---------- Previous post was at 02:58 PM ----------
Almost forgot, try another USB if yours isn't working, always use a good USB cable if you gonna flash stock firmware

22sl22 said:
Try holding volume down+power to get into download mode. If you can get there then it can be saved. Look in my signature for links to flashing stock firmware and more for a solution :good:
Sent from my Nexus 4 using Tapatalk
---------- Post added at 02:59 PM ---------- Previous post was at 02:58 PM ----------
Almost forgot, try another USB if yours isn't working, always use a good USB cable if you gonna flash stock firmware
Click to expand...
Click to collapse
already tried, the screen does not even turn on, both on USB computer's port and on power supply as well... :'(

nicopilami said:
already tried, the screen does not even turn on, both on USB computer's port and on power supply as well... :'(
Click to expand...
Click to collapse
Have you tried leaving it on charge for a while first?
Also, because you are not rooted you can claim the warranty if it doesn't work

22sl22 said:
Have you tried leaving it on charge for a while first?
Also, because you are not rooted you can claim the warranty if it doesn't work
Click to expand...
Click to collapse
I will be in vacation for a few days, my device will stay home trying to charge during this time
Regarding the warranty, I would like to avoid having to use it.
Nico

I bought my P600 refurbished and it ran into some issues a few days after. I already voided the warranty so I've been looking around for resolutions for my problem.
I did see some people have the same exact issue you had. This is all based on the research I did trying to fix mine (which is not the same issue you are having).
WARNING, THIS IS ONLY BASED OFF OF WHAT I'VE READ. I DID NOT EXPERIENCE THIS NOR DID I VERIFY IT. JUST PASSING ON MY KNOWLEDGE, SO DO AT YOUR OWN RISK!!!!!!
Apparently when the screen doesn't come on its due to only a few things. Its either bricked, has bad hardware, or lastly, which is the most common, is that the LCD ribbon cable came loose. You have to open it up and check reseat it. But then it would come undone again. Someone used electrical tape and the issue was resolved. Once you open it, the LCD ribbon cable is on the left.
If you don't open it properly it will show signs of being opened (chipped plastic bezel), so only open it if you think you can do it carefully and are not wanting to send it in for warranty.

[Q] HTC ONE (M8) is not starting... :(

Hi,
My uncle gave htc one m8 as a gift to me. He had bought it from Dubai. I have Started the mobile and filled all the personnel information to set up software. After that software update had come and it is downloading the update it is downloading slowly so i went outside i came back to home and checked my phone it was off i thought the charging is over and kept the charging but red led notification is not blinking after that i switched on the phone but phone doesn't start. The next day i went to the HTC authorized service centre and we have expalined the problem to them they said its a major problem but they are not saying the exact problem to us. and also we cannot send to service because it is dubai's model pls help me what do now...... Please help.............

First step would be to try another charger and cable.
If it still won't charge, it's likely the mini USB port or some other hardware issue.

try hard restart by holding the volume up until it restarts (maybe it will work)
do you feel the heat from your device or be in totally dark place do you see your screen bright?

Iloudsan said:
try hard restart by holding the volume up until it restarts (maybe it will work)
do you feel the heat from your device or be in totally dark place do you see your screen bright?
Click to expand...
Click to collapse
i kept charging for 1 hour the red light is blinking some times the red light is being constant by device is heating up back but wont turn i tried with different cables. when i wnt to the service centre they said charge the phone using laptop i tried same thing is reapting

Pls help me guys....

Iloudsan said:
try hard restart by holding the volume up until it restarts (maybe it will work)
Click to expand...
Click to collapse
You need to hold vol up and power for this to work, not just vol up.
---------- Post added at 11:59 AM ---------- Previous post was at 11:58 AM ----------
jayanth.aanala said:
i kept charging for 1 hour the red light is blinking some times the red light is being constant by device is heating up back but wont turn i tried with different cables. when i wnt to the service centre they said charge the phone using laptop i tried same thing is reapting
Click to expand...
Click to collapse
I would suggest keeping it on the wall charger (not connected to PC) for several hours. Then try to power on again, or the button combo I gave above, as well as power+vol down.

redpoint73 said:
You need to hold vol up and power for this to work, not just vol up.
---------- Post added at 11:59 AM ---------- Previous post was at 11:58 AM ----------
I would suggest keeping it on the wall charger (not connected to PC) for several hours. Then try to power on again, or the button combo I gave above, as well as power+vol down.
Click to expand...
Click to collapse
I forgot to mention the power I swallowed it

[Q] Tablet stuck on Samsung splash screen

Hi there,
Earlier today I plugged my tablet in to charge and left the room. When I came back, the screen was on (very dim) with the Samsung splash logo running. The tablet does not react to anything. Holding the power button changes nothing (so it doesn't turn the tablet off). I unplugged the charger hoping the battery will slowly drain and turn the device off for me. Any tips?
My device is rooted btw.
e: holding power, volume up + down for a few seconds made the tablet reset. All fine now.

I'm experiencing the same behavior meanwhile on two different German SM-T800s. Both have been charged, diconnected (everything still OK) and lay unused for a few hours. Upon picking them up, the screen displayed the above mentioned Samsung Logo.
Here are a few facts about the Tablets:
Purchased and made a OTA update to LP (5.0.2)
Rooted using CF-Auto-Root
Kernel: 3.4.39-4620222 [email protected] #1 Fri Apr 3 09:48:41 KST 2015
Buildnumber: LRX22G.T800XXU1BOD1
SE for Android Status: Enforcing SEPF_SM-T800_5.0.2_0022 Tue Jun 23 14:43:13 2015
There haven't been any updates or modifications of apps or Android itself, which might be seen in a causal context.
As Grawl mentioned the tablet doesn't react to anything. I tried the following on one device
Long press of power button
Power button + vol up + home button
connecting to PC via USB, device is not recognised (Kies is trying to establish a connection, but eventually failing)
connecting to a usb charger
I noticed a significant generation of heat right between the camera and the Samsung logo on the backside, I normally only notice when I've been gaming for a long time. Both have the original Book Case Cover attached.
I decided to let the tablet discharge and see what happens. After letting it lay overnight, without the cover I was anxious and again tried to press power button + vol up + home button and this time the screen went blank and the tablet booted up, which felt a bit longer than usual. I've started the tablet a few times since and everything seems to be back as before this freeze up.
Could it be a 'heat' issue or does anyone have a clue as to where we might look for a cause? Any help is really appreciated.

To add more information:
- I also updated to 5.0.2 using OTA update
- Also rooted using CF-auto-root
- Kernel: 3.4.39-4403645 [email protected] #1 Tue Mar 17 11:45:21 KST 2015
- Build: LRX22G.T805XXU1BOCC
- SE Status: Enforcing SEPF_SM-T805_5.0.2_0022 Tue Jun 23 15:38:49 2015
I don't think heat was the issue (in my case). It was a rainy day with temperatures of around 20C. The week before I used the tablet outside, when it was 35C+. I made no changes or installed new apps 24 hours prior to this incident.

I mentioned 2 devices and was expecting the second one to be handed to me by my parents. But they took matters in their own hands.
They let the SM-T800 drain the battery and connected it to a charger when the screen was all black (no Samsung Logo anymore). They told me that the green battery symbol appeared, just as it does on a switched off device that's charged. Unfortunatly it wasn't possible to see what would have happened, when the device would be fully charged, as my mom, in her infinite wisdom, decided to boot it into recovery mode (as I had asked her to try that two days prior , which didn't result in any reaction at that time). After choosing 'reboot system now' the T800 started flawlessly and continued to work in that way since.
Still no clue as what might have caused that.

cross posting but we can't delete so:
it just happened to me right now, what a rush ! finally , holding power, volume up + down for a few seconds made the tablet reset
( while connected on usb) once booted the battery was at 60% , WTF was that ?

I had a similar issue. As of 13 hours ago my Tab S was fine. I went to go use the tablet maybe 4 hours ago and I saw the screen dim and samsung logo there (just as was the case with the OP). The tablet had been in my bag, so maybe it accidentally rebooted or something while it was in there?
I did the power button + vol up + vol down reset trick and on reboot it worked fine. It was at 7% when it rebooted :S, but it was around 37% when I was using it last so this makes sense.
I also have a rooted tablet running stock...

Hi, I am desperately trying to revive my Tab S 10.5. It went blank a couple of days ago, the battery should not have gotten empty, but my first action was to plug in the charger. Didn't work of course.
Then I googled and ended up here. I have tried various button combinations, with charger connected and disconnected. Also while connected to my computer, but maybe Ubuntu doesn't count on this occasion.
I fear I wasted my chance for the magic power + vol up + vol down by trying other combinations before it.
My only hope now is if any one of you wizards could talk me throu a magic spell for reviving my precious Tab S 10.5 LTE, or maybe link to an howto guide. Please :-\

semibody said:
Hi, I am desperately trying to revive my Tab S 10.5. It went blank a couple of days ago, the battery should not have gotten empty, but my first action was to plug in the charger. Didn't work of course.
Then I googled and ended up here. I have tried various button combinations, with charger connected and disconnected. Also while connected to my computer, but maybe Ubuntu doesn't count on this occasion.
I fear I wasted my chance for the magic power + vol up + vol down by trying other combinations before it.
My only hope now is if any one of you wizards could talk me throu a magic spell for reviving my precious Tab S 10.5 LTE, or maybe link to an howto guide. Please :-\
Click to expand...
Click to collapse
Plug the charger in hold POWER + VOL DOWN.
Hopefully you will see your tablet restart.

ashyx said:
Plug the charger in hold POWER + VOL DOWN.
Hopefully you will see your tablet restart.
Click to expand...
Click to collapse
Thank you very much for the reply. Unfortunately it does not work in my case. I am not sure which one is volume down so I plugged in the charger and held power + one of the volumes for about 20-30 seconds. I then unplugged, waited maybe 10 seconds, plugged the charger back in and held power + the other volume, also without succes.

semibody said:
Thank you very much for the reply. Unfortunately it does not work in my case. I am not sure which one is volume down so I plugged in the charger and held power + one of the volumes for about 20-30 seconds. I then unplugged, waited maybe 10 seconds, plugged the charger back in and held power + the other volume, also without succes.
Click to expand...
Click to collapse
Leave your charger plugged in for a while. A totally dead battery will not be able to boot the tablet until it has some juice. I'd also check the charger or swap it.
After a short while try again. VOL DOWN is the one closest to the power button.

ashyx said:
Leave your charger plugged in for a while. A totally dead battery will not be able to boot the tablet until it has some juice. I'd also check the charger or swap it.
After a short while try again. VOL DOWN is the one closest to the power button.
Click to expand...
Click to collapse
Thank you, but still no luck. Trying another charger now but the other one works with my phone so I don't think it's the charger.

Open tablet up at own risk. There is videos on YouTube how to do this. Take out battery wait 3 minutes, plug it back in. Press power button. Should work if not try 3 button combo as above

suburbadroid said:
Open tablet up at own risk. There is videos on YouTube how to do this. Take out battery wait 3 minutes, plug it back in. Press power button. Should work if not try 3 button combo as above
Click to expand...
Click to collapse
In found this guide
https://www.ifixit.com/Guide/Galaxy+Tab+S+10.5+Battery+Replacement/50302
But need time and tools so not tonight. If any one posts a miracle tip before I crank my Tab Open, I will stick i sign with the screen name of that person in the ground of the moon, whenever I get there.
---------- Post added at 11:02 PM ---------- Previous post was at 10:04 PM ----------
Impatience is my nightly name. I got the back cover off, it was Hard on my finger nail but even harder on my nerves. Then I fiddled with some incredibly-fragile-looking cables and got the battery out. As I am writing this I'm letting the residue energy disappate from my Tab corpse, before attempting resurrection. I did hold the power button 20-30 seconds after removing the battery.
Note, this was tougher on the nerves than replacing the camera module on my LG G4, wich was fairly easy.
Now, by the power of geeks and The starship Enterprise, Reassemble!
---------- Post added at 11:24 PM ---------- Previous post was at 11:02 PM ----------
Note, The tiny cover for the Ir blaster came off, keep your eyes on it. I got it back fine thou.
However, plugging in a charger and holding power + vol down still does nothing magic. Thinking I'm to leave the charger plugged in over night.

Nope, still can't get my Tab to liven up. All hope seems lost

semibody said:
Nope, still can't get my Tab to liven up. All hope seems lost
Click to expand...
Click to collapse
You can mayby replace the battery or try a repair shop...
Sent from my SM-T800 using XDA-Developers mobile app

Creeper123 said:
You can mayby replace the battery or try a repair shop...
Sent from my SM-T800 using XDA-Developers mobile app
Click to expand...
Click to collapse
Yea that is the next step for me. I'm not entirely sure it isnthe battery so I'm sending in on service. I really liked my Tab S, a bit sluggish but still, I want it working.
Thanks for your time everybody, I really appreciate it.

xperia z5 bricked!

Today I was trying to install lineage os and gapps stock version along with volte(voice over Lte) and cm firmware on my xperia z5 premium (E6883) but when I pressed reboot it just turned off and then it doesn't on again I tried many times but nothing happened...There is no led light and there is nothing on screen....I can't even take it to flash mode for flashing firmware. ..whenever i connect it with pc it says unknown usb device...now what to guys...Please help me...

the device is still running
PRESS and HOLD POWER+VOLUMEUP keys for 15seconds, device will JERK THRICE, on second JERK z5 will shutdown!
now connect in fastboot mode and flash proper rom.
please do let me know

YasuHamed said:
the device is still running
PRESS and HOLD POWER+VOLUMEUP keys for 15seconds, device will JERK THRICE, on second JERK z5 will shutdown!
now connect in fastboot mode and flash proper rom.
please do let me know
Click to expand...
Click to collapse
The device isn't vibrating....

Whenever i connect my phone with pc it doesn't vibrates but if i go to the device manager here i see something like that!

sandipdhar said:
The device isn't vibrating....
Click to expand...
Click to collapse
IT must vibrate, however if its not then
1. you must remove battery and insert it again after 5 mins (which sony service centre can do only) (may be local repair shop) but wouldn't advice, local shop may break your screen... OR
2. use rubber band trick, tie the rubber bands around z5 body in a way that it keep pressing power + volume down keys! , it may take 3-5 days for battery to completely DRAIN.
3. plug is to WALL CHARGER and may take many hours or a day for red led to start blinking and then few hours later it should come back to life.
you z5 is HARD BRICKED , rarely happens to z5 series! but it does happen!
ref
https://talk.sonymobile.com/t5/Xperia-Ion/Xperia-ion-hard-bricked/td-p/310905/page/5
https://forum.xda-developers.com/xperia-z5/help/z5-dead-t3379264
Click to expand...
Click to collapse
ONE more thing,
did you try pressing HARD RESET BUTTON ? it should be soft white/yellow square thing far corner in the sim slot tray ?
---------- Post added at 06:31 AM ---------- Previous post was at 06:29 AM ----------
sandipdhar said:
Whenever i connect my phone with pc it doesn't vibrates but if i go to the device manager here i see something like that!
Click to expand...
Click to collapse
well this usually comes up if mother board fails! but lets not go in to that right now! worse case scenario is that you may have to take it to service centre and ask for replacement motherboard. if it comes to that point! .... buy XZ

YasuHamed said:
IT must vibrate, however if its not then
1. you must remove battery and insert it again after 5 mins (which sony service centre can do only) (may be local repair shop) but wouldn't advice, local shop may break your screen... OR
2. use rubber band trick, tie the rubber bands around z5 body in a way that it keep pressing power + volume down keys! , it may take 3-5 days for battery to completely DRAIN.
3. plug is to WALL CHARGER and may take many hours or a day for red led to start blinking and then few hours later it should come back to life.
you z5 is HARD BRICKED , rarely happens to z5 series! but it does happen!
ONE more thing,
did you try pressing HARD RESET BUTTON ? it should be soft white/yellow square thing far corner in the sim slot tray ?
---------- Post added at 06:31 AM ---------- Previous post was at 06:29 AM ----------
well this usually comes up if mother board fails! but lets not go in to that right now! worse case scenario is that you may have to take it to service centre and ask for replacement motherboard. if it comes to that point! .... buy XZ
Click to expand...
Click to collapse
How do i know that the battery is completely drained and now its the time to connect it with wall charger??

YasuHamed said:
IT must vibrate, however if its not then
1. you must remove battery and insert it again after 5 mins (which sony service centre can do only) (may be local repair shop) but wouldn't advice, local shop may break your screen... OR
2. use rubber band trick, tie the rubber bands around z5 body in a way that it keep pressing power + volume down keys! , it may take 3-5 days for battery to completely DRAIN.
3. plug is to WALL CHARGER and may take many hours or a day for red led to start blinking and then few hours later it should come back to life.
you z5 is HARD BRICKED , rarely happens to z5 series! but it does happen!
ONE more thing,
did you try pressing HARD RESET BUTTON ? it should be soft white/yellow square thing far corner in the sim slot tray ?
---------- Post added at 06:31 AM ---------- Previous post was at 06:29 AM ----------
well this usually comes up if mother board fails! but lets not go in to that right now! worse case scenario is that you may have to take it to service centre and ask for replacement motherboard. if it comes to that point! .... buy XZ
Click to expand...
Click to collapse
Yes i have tried to hard reset my phone but nothing happened....and how can i press the power button with rubber band.?..see the picture below. .

sandipdhar said:
Yes i have tried to hard reset my phone but nothing happened....and i press the power button with rubber band...see the picture below. .
Click to expand...
Click to collapse
you have to do something like this
https://img.xda-cdn.com/vVC8oAnJ0TWzDEDNUIN3-pILyec=/http://i.imgur.com/KPRYoFU.jpg
use folded papers, tissue papers or softplastic to HOLD THE keys for DAYS

YasuHamed said:
you have to do something like this
https://img.xda-cdn.com/vVC8oAnJ0TWzDEDNUIN3-pILyec=/http://i.imgur.com/KPRYoFU.jpg
use folded papers, tissue papers or softplastic to HOLD THE keys for DAYS
Click to expand...
Click to collapse
How do i know that the battery is completely drained iand it's the perfect time for connecting the phone with charger???

sandipdhar said:
How do i know that the battery is completely drained iand it's the perfect time for connecting the phone with charger???
Click to expand...
Click to collapse
there is not indicator of fully drained battery! , when my ION was bricked after two days (or so) of rubber band trick, i plugged wall charger and next day red led appeared!
it required lots of patience

YasuHamed said:
there is not indicator of fully drained battery! , when my ION was bricked after two days (or so) of rubber band trick, i plugged wall charger and next day red led appeared!
it required lots of patience
Click to expand...
Click to collapse
I applied the rubber band trick for my phone for almost 3 days....now should i remove the rubber bands or nor? ? Please explain in detail....

sandipdhar said:
I applied the rubber band trick for my phone for almost 3 days....now should i remove the rubber bands or nor? ? Please explain in detail....
Click to expand...
Click to collapse
please connect it to wall charges and leave it for next two or so days!
a red blinking led must appear!!!!

Should i remove the rubber bands?

I have the same situation at the moment. Waited days for it to discharge and charged it up for a day but still no status light. Tried the off switch and holding the power + volume up button.
I'm going to try the rubberband trick with the power + volume down and wait til the weekend to see if it works again.

Completely Dead no lights

It happened after trying to charge with a type c adapter and (may be a faulty)moto charger.
After I charged it 2, 3 cycles with stock charger.
Then reboots began.
Opening gallery or any slightly heavy app caused reboot.
After one week phone just turned off.
pressing power key just dimly lights screen for a second then turn off.
No led lights. No logo. Nothing.
edl mode is possible.
Tried edl and qfil.
It flashed successfully but still no lights or boot.
Same state.
Local Service center guys tried everything and failed.
They removed battery tried another battery. No luck.
Any possible way..................?
Its been only 1.5 years and there is not a single scratch.
Phone shines like a polished granite piece.
So sad to see such a good phone die so soon....

nikhilZ2 said:
It happened after trying to charge with a type c adapter and (may be a faulty)moto charger.
After I charged it 2, 3 cycles with stock charger.
Then reboots began.
Opening gallery or any slightly heavy app caused reboot.
After one week phone just turned off.
pressing power key just dimly lights screen for a second then turn off.
No led lights. No logo. Nothing.
edl mode is possible.
Tried edl and qfil.
It flashed successfully but still no lights or boot.
Same state.
Local Service center guys tried everything and failed.
They removed battery tried another battery. No luck.
Any possible way..................?
Its been only 1.5 years and there is not a single scratch.
Phone shines like a polished granite piece.
So sad to see such a good phone die so soon....
Click to expand...
Click to collapse
Maybe screen died

Try This Method see if this method works or not
https://zukfans.eu/community/thread...-from-hard-brick-state-9008-mode-easily.3504/

nikhilZ2 said:
It happened after trying to charge with a type c adapter and (may be a faulty)moto charger.
After I charged it 2, 3 cycles with stock charger.
Then reboots began.
Opening gallery or any slightly heavy app caused reboot.
After one week phone just turned off.
pressing power key just dimly lights screen for a second then turn off.
No led lights. No logo. Nothing.
edl mode is possible.
Tried edl and qfil.
It flashed successfully but still no lights or boot.
Same state.
Local Service center guys tried everything and failed.
They removed battery tried another battery. No luck.
Any possible way..................?
Its been only 1.5 years and there is not a single scratch.
Phone shines like a polished granite piece.
So sad to see such a good phone die so soon....
Click to expand...
Click to collapse
Try replacing LCD screen. Search for "Lenovo z2 plus LCD screen replacement" videos or guides. You can do it yourself.

Dont know screen is damaged
Hemun said:
Try replacing LCD screen. Search for "Lenovo z2 plus LCD screen replacement" videos or guides. You can do it yourself.
Click to expand...
Click to collapse
Service center guys told that board is damaged.
After its death, phone is not booting no notification or sound.
How can I confirm that display is the problem.
Phone feels like hard bricked. But no lights.
Edl mode flashing succeeded but still behaves like bricked.

nikhilZ2 said:
Service center guys told that board is damaged.
After its death, phone is not booting no notification or sound.
How can I confirm that display is the problem.
Phone feels like hard bricked. But no lights.
Edl mode flashing succeeded but still behaves like bricked.
Click to expand...
Click to collapse
If board was damaged u should not be able to flash qfil or even boot phone to edl

point
JV Spartacus said:
If board was damaged u should not be able to flash qfil or even boot phone to edl
Click to expand...
Click to collapse
Ok good point.
But if only display is damaged then y it behaves like bricked. I mean rebooting when power button pressed.

nikhilZ2 said:
Ok good point.
But if only display is damaged then y it behaves like bricked. I mean rebooting when power button pressed.
Click to expand...
Click to collapse
Take it to local mobile repair centre maybe they can repair it