Hi Everyone,
Phone decided to randomly turn off (at around 80% charge) and now won't boot. Have tried all the basic TS guides.
have tried:
-Charging - no on-screen displays
-Holding power button for various intervals
-Button combinations (Power + vol up....etc)
Connecting to PC gives me an indication that it has detected a USB connection, then consistently after ~40s I get the disconnect notification sound. Then off for 20s and the the cycle repeats.
I'm assuming it is stuck in bootloop for some reason but still nothing from the screen.
Phone hasn't been dropped, rooted, is running stock ROM etc...
any ideas?
Assuming the bootloop isn't caused by hardware failure then you can try forcing your phone into its Recovery mode by holding down the power button and volume down button simultaneously. From here, you may be able to roll your phone back or restore a previous backup. However, this often results in data loss, which isn't ideal, so you might have to weigh up your options.
If this doesn't work, you'll need to enter your smartphone's Safe Mode. When your phone is booting, and you see the manufacturer's name appear, press and hold the volume down button to put your device into Safe Mode. Here, you can follow prompts to hopefully remove whatever program, app, or software updates forced your phone into a bootloop.
xXx yYy said:
Assuming the bootloop isn't caused by hardware failure then you can try forcing your phone into its Recovery mode by holding down the power button and volume down button simultaneously. From here, you may be able to roll your phone back or restore a previous backup. However, this often results in data loss, which isn't ideal, so you might have to weigh up your options.
If this doesn't work, you'll need to enter your smartphone's Safe Mode. When your phone is booting, and you see the manufacturer's name appear, press and hold the volume down button to put your device into Safe Mode. Here, you can follow prompts to hopefully remove whatever program, app, or software updates forced your phone into a bootloop.
Click to expand...
Click to collapse
It won't boot at all, the screen doesn't turn on. But surely something like this doesn't just randomly fail
My recommendation: take phone to authorized service center and let them try to fix it.
Related
Hello,
I think I might be at the end of the road with my tablet. I've never rooted it or tampered with it in an way, however yesterday it locked up so I did the usual soft reset (hold power and vol+ for 10 seconds) I then turned it back on and the sony logo popped up, but there it just hung. If I press and hold the power button it switches off, a brief press on the power button brings it back on in the same state. So I go Googling, including looking at threads on this site, all seemed to advise to try to get the Android recovery menu up. on the Sony this is done by holding the power and vol+ and then releasing the power button (only) when the son logo appears (this process to be started when the tablet is off) so I did this, and no response at all. Worse than that, where it would turn on and instantly hang, it now doesn't turn on at all. Hooking it up to my PC I can see the device in device manager, but it tells me my usb device has malfunctioned.
At the moment, my thoughts are to open it up, to:
1. Check that the power/volume buttons aren't stuck in some way (preventing the boot command being given correctly)
2. Remove and resolder if necessary internal battery to force a power cycle.
3. Bin it and get something new (it is 2.5yrs old so no big loss i suppose)
Any ideas where to look or similar experiences?
Thanks
Hi
Please post in Tablet S Q/A section after signing up.You will get better help from your peers.
http://forum.xda-developers.com/sony-tablet-s/help
Good day !
Hey guys
This might seem basic. Of course I can use adb or the buttons to get to the bootloader/fastboot. But occasionally when I'm messing with my n5, I do something that forces a reboot, or maybe I accidently hit the wrong key, or don't do the buttons right - now it's booting up, but, as often happens at these times, now you have to wait for the applications to 'optimize'.
That takes a good long while with 200+ apps! I know I can hold the power and force another reboot, but I can never seem to get it to go to the bootloader while forcing a boot by holding the power/vol+/vol- .
Am I missing something, or is there no way to "abort" a boot, and somehow get to fastboot mode ?
On my old phones, I would pull the battery, jumping straight to "power off" mode, then hold the vol and power like usual and be off to the races.
bluenote73 said:
Hey guys
This might seem basic. Of course I can use adb or the buttons to get to the bootloader/fastboot. But occasionally when I'm messing with my n5, I do something that forces a reboot, or maybe I accidently hit the wrong key, or don't do the buttons right - now it's booting up, but, as often happens at these times, now you have to wait for the applications to 'optimize'.
That takes a good long while with 200+ apps! I know I can hold the power and force another reboot, but I can never seem to get it to go to the bootloader while forcing a boot by holding the power/vol+/vol- .
Am I missing something, or is there no way to "abort" a boot, and somehow get to fastboot mode ?
On my old phones, I would pull the battery, jumping straight to "power off" mode, then hold the vol and power like usual and be off to the races.
Click to expand...
Click to collapse
To force a reboot into fastboot mode, hold Power + Vol down. You can do it whenever you want.
That's ^ the procedure... For me the easiest is to hooks power to force reboot once it vibrates and starts to go black let go of power and hold volume down to get into bootloader.
I have a Galaxy S6 with a faulty power button.
I took it to a Samsung Repair Centre.
After "diagnosing" the problem (which I had to pay for), I was told that the faulty power button was due to "liquid damage" (it has never been in water everything else works fine).
They said it would cost £180 to repair and would require they replace the whole motherboard.
I refused as I cannot afford that repair and would rather consult a third party shop or purchase a brand new phone.
Unfortunately, the state I received the phone back in unusable.
Before the phone was sent in, it was at least in a state where I could at least use it (providing I kept it charged and did not power it off).
Now its just stuck in a recovery mode => restart => no command (boot loop), and I cannot select an option from the recovery mode screen because the power button does not work.
I planned to flash the stock firmware to try in order to get it out of this loop, and I can get it to boot to download mode as the volume buttons and home button work fine.
However, now when I'm at the cyan warning screen it prompts me for volume up to continue.
I press volume up and nothing happens. I know that these buttons work for a fact as in recovery mode I can navigate up and down.
Any ideas whats going on? or what I should try next?
Videos of the issue
(Tinfoil theory: Did they purposefully lock down download mode after inspecting it?)
If you have time, continuously keep pressing volume up and power until it gets you into Odin. Best of luck.
We're on slightly different devices, but mine has the same defect. The power button failed overnight, it worked to start the device but afterwards, the power button became stuck in the pressed state and I couldn't lock the device (not mechanically, it is still clicky). The volume down button still worked (I don't have to hold power to force a restart because it's stuck in the pressed state), I wanted to take a look at the knox status in the download mode, it didn't respond to volume up, this means that it's dependent on not having power pressed. I somehow got the restart confirmation to show with the power button, twice, so it's not completely defective. The volume down button cycled through being stuck and non-clicky, working normally, and being stuck while being mostly clicky, like the power button, though it doesn't seem to be stuck in the pressed state. It's likely because I kept pushing Volume Down for hours in a terminal emulator. Today, it takes 5 mins of torturing Volume Down to restart the device. Eventually, it might fail completely. This device seems to be able to ignore volume up / down if those buttons are stuck and work almost completely normally.
I have a really big issue. After attempting to get into recovery mode with my S7 which has a broken power button due to water damage it tried to install a system update despite I didn't perform any update and now it shows no command and kicks me into recovery mode but I cannot choose any option because my power button is broken.
I've also tried holding Volume Down + Home Button but when entering download mode I cannot proceed when pressing Volume Up. Nothing happens and I can only get out of there when holding Volume Down for 5-10 seconds and the the first mentioned thing happens again. Is there anything I can do without replacing the damaged part?
Take your back panel off and try fixing your power key manually. However taking your back panel off will remove your IP68 water resistance.
Wattsensi said:
Take your back panel off and try fixing your power key manually. However taking your back panel off will remove your IP68 water resistance.
Click to expand...
Click to collapse
The back panel has already been replaced once (but improperly) by the previous owner and it already has a tiny gap at the top of the phone, so no water resistance anymore. I'll try it out when I can. Thx for your answer
LNCRFT said:
I have a really big issue. After attempting to get into recovery mode with my S7 which has a broken power button due to water damage it tried to install a system update despite I didn't perform any update and now it shows no command and kicks me into recovery mode but I cannot choose any option because my power button is broken.
I've also tried holding Volume Down + Home Button but when entering download mode I cannot proceed when pressing Volume Up. Nothing happens and I can only get out of there when holding Volume Down for 5-10 seconds and the the first mentioned thing happens again. Is there anything I can do without replacing the damaged part?
Click to expand...
Click to collapse
I've the same problem, but it happened after my S7 turned off because the battery reached 0% (I was sleeping).
My power button is also broken, and volume up doesnt work in download mode, but it was working fine in Android.
A few weeks after switching from my old S7 Edge to my old S8 (which I did about a month ago), I tried turning on my S7 Edge only for it to enter recovery mode. Since the power button is broken, I figured I would have to reboot it out of recovery mode using ADB on my PC. When I switched my S7 on again the next day to enter recovery mode and connect it to my PC, I got to the "installing updates" screen that precedes recovery mode. This screen showed up for about three seconds before my screen went black. After 10 seconds my phone rebooted and went back to the "installing updates" screen, went black, rebooted, and so on.
I think my phone might be out of battery so when it charges a little bit, it automatically tries to enter recovery mode, which uses up all the power in the battery and causes it to die, restarting the cycle. Is there any way I can stop my phone from automatically turning on when it is plugged in so that it can charge enough to actually make it to recovery mode?
Thanks!
For some reason, the bootloader on this device remembers if you were last booted into recovery, and will return to it on the next poweron, so - without a working power button - there aren't very many options.
The power button could be an easy fix - depending on if it's stuck or damaged. The outer parts of the volume and power buttons on this device are interchangable, so that could make all boot modes possible again. Opening your device may sound scary, but - with good research and some patience - you will find it is certainly doable using basic tools. And if you don't want to do it yourself, a local repair shop would probably do it for cheap as well.
As far is I know, there isn't any usable software fix without a working power button.