guys please help i flashed lineage aosp on my s8 plus .....booted up normally but when i shut down it didnt turn on again no recovery no download mode ...hard keys restart not working,,,,, no charging..please help me....thanks a lot
khawarjaved said:
guys please help i flashed lineage aosp on my s8 plus .....booted up normally but when i shut down it didnt turn on again no recovery no download mode ...hard keys restart not working,,,,, no charging..please help me....thanks a lot
Click to expand...
Click to collapse
just keep on holding those butons for download mode
it will take you there eventually
The Samsung Galaxy S8 is one of the most powerful and good looking smartphones available on the market right now. I know, the S9 was recently introduced, but the differences aren’t that big, so a lot of people are getting last year’s flagship, for a very good price.
Let’s say that you’re one of them and got it for a while. Suddenly, the Samsung Galaxy S8 won’t turn on, no matter which method you use to unlock it, raising some serious question marks. Is the phone broken? Is something you can do to fix it yourself? Should you take it to a service?
We will find answers to these questions together, through this guide! But first, let’s see which are the actual reasons why the phone won’t turn on.
Why is my Samsung Galaxy S8 not turning on?
Like in most cases, there are various problems causing this, both of them split into two categories: software glitches or technical issues.
Fortunately, there’s solution almost all the time, except when a part of your phone is damaged and needs replacement, so you need to take a phone to a service and leave professionals to take care of it.
Now, let’s see the steps you need to follow if your Samsung Galaxy S8 won’t turn on.
Unlock it correctly
It’s possible for your phone unlocking method of choice to have trouble responding. If you don’t have any authentication method, just hit the Power Button correctly and see if the phone turns on.
Many users reported that, sometimes, pressing it improperly may cause the device not to turn on. Yes, it sounds weird, but it’s something you can try.
If you opted for fingerprint authentication and the phone doesn’t turn on, make sure you’re placing your index (or whatever finger you’re using for unlocking) in the middle of the scanner. It should unlock in a few seconds. Otherwise, the scanner will vibrate for a moment, which means that your finger is not placed correctly.
If these methods don’t work, then move on to the next one.
Perform a soft reset
If you can’t unlock the phone properly and the screen remains black, a soft reset is the next thing you can do. Basically, you’re ruling out the possibility of the firmware crashing or other minor software issues.
On older Android handsets, this was done by taking of the battery and putting it back on, but since the Galaxy S8 power pack is not removable, you’ll have to use another way. Specifically:
Press and hold the Power Button and the Volume Down Key for around 10 seconds
Wait until the Samsung logo shows up on the screen
Give it a few moments until it boots completely
After this, unlock your phone, then try turning it on again and see if the issue appears. If it does, it means that it’s a bit more difficult to fix than you believed. If it works properly though, but you still encounter this issue once in a while, it means that there’s something wrong with the phone and you should try get it replaced.
Charge the phone
Before worrying, you must rule out the scenario in which your Samsung Galaxy S8 won’t turn on because the battery hasn’t been charged.
Therefore, using the charger the phone came with, leave it plugged for at least five minutes and see if the charging icon appears and the LED indicator lights up. If both of these are present, leave the phone charging for a few more minutes and try powering it back on. It should be ok.
If the Fast Charger doesn’t seem to be charging the phone, it means that it has some problems on its own. Try another charger or switch the wall adapter.
On the other side, if none of these signs are showing, it means that the phone is not charging and there’s something messing with it, like a faulty app, for example. If you’re in this situation, proceed to the next step.
Boot the phone in Safe Mode
This method will power up your phone just with the stuff it has out of the box, so no third-party apps or anything else you installed.
In order to put it in this mode, follow these steps:
Presuming that your phone is turned off, press and hold the Power Button past the screen with the phone’s name and model
As soon as you see the Samsung logo appearing on the screen, release the Power Button
Right after this, press and hold the Volume Down key
Continue holding the Volume Down key until your phone finishes restarting
You should now see Safe Mode written in the bottom left corner of the display
Release the Volume Down key
Now you can start uninstalling any app that causes your Samsung Galaxy S8 to not turn on. Start with the ones that look suspicious and see if the issue persists.
Boot the phone in Recovery Mode
Finally, there’s one more thing you can do to troubleshoot the device and see if a software glitch is indeed the reason why your Samsung Galaxy S8 won’t turn on.
Press and hold the Power Button, Bixby Button, and the Volume Up key at the same time, until the phone vibrates
Once you feel the vibration, release the Power Button, but keep the other two buttons pressed
You should now see the Android Recovery screen
Release all keys
Using the volume keys, select the Clear Cache Partition option
Confirm your choice using the Power button
Wait for a few moments, until the phone restarts
If none of these are working, it’s definitely an issue with the screen itself, meaning that you need to have it verified.
Check your phone’s screen
First thing first, you need to inspect the display for any potential damage. Make sure it’s not chipped, cracked or damaged. Such issues can completely affect its functionality.
If you can find any of these on the surface of the display, take it to a service and have it replaced. However, it the issue persists and the Samsung Galaxy S8 won’t turn on even after getting a new display, it’s better to get a new phone, as long as you’re covered by warranty. You’re definitely dealing with a complicated hardware issue.
Hold powerbutton and volume down pressed for 10 seconds. This will reboot any locked s8, maybe it's stuck at boot after your flash.
Verstuurd vanaf mijn SM-G955F met Tapatalk
Bisquit-02 said:
Hold powerbutton and volume down pressed for 10 seconds. This will reboot any locked s8, maybe it's stuck at boot after your flash.
Verstuurd vanaf mijn SM-G955F met Tapatalk
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Click to collapse
brother thanks i left phone for overnight next day somehow it got into download mode ......flashed twrp and restore my old rom......
Related
So I've had my fuze a little over a year now, no major issues. Used mostly energyroms, but about December time I switched back to a simple non-bloated stock rom for the stability.
Anyway today at work I was texting, and I press the power button to put the phone in standby. And the screen remains on and usable. I tried again and it would not go into standby (power button physically feels normal, it does not feel loose or abnormal.) So i let it sit for a few minutes, then i look at it and a message poped up asking if i wanted to turn the phone off (like as if i was holding the power button)so i press no, then it comes up again a few seconds later and aagain and again. So I soft reset the phone.
The phone resets but takes a LOT longer at the att/htc splashscreen, then it hangs at the htc screen and does not make it to the wimo screen, but instead an error screen saying:
"The device is unable to boot because you have either turned off the device incorrectly or tried to install an applicationa from an untrusted source, press SEND to reset your device or press any other button to cancel..."
I think it went through the hard reset this time because when it restarted it asked to calibrate the screen and install stuff. it resets again sometime after that, still takes forever at the splash screen and comes back up to the error, only this time no matter what button i press it wont go away and boot into wimo. It seems like none of my buttons work (they wont light up now) when i slide out the keyboard, it is not lit up like normally.
And heres the kicker, my only way to turn on/off the phone is to take out/put in the battery. As soon as I pop the battery back in the fuze turns on. Is my phone toast? Ive tried to hard reset and the phone does not reach the bootloader, it goes straight to the splash screen. Same with trying to reflash it from my comp, raphealwrapper cannot find my phone.
I've only recently encountered the exact same problem on my Touch Pro, but stock ROM and everything. As far as I can tell, our power buttons are busted and probably need to be serviced. One of the contacts must be stuck in the 'on' position somewhere inside :\ As a temporary fix, I've been using AEButton Plus and remapped double tap end call key to turn the screen off, and removing the stylus to turn it on.
my skyrocket has a broken power button. it has been finniky for a while now and basically will not boot the device 9/10 times.. with the combination of volume wake and search long hold to shut off screen I can live with it BUT I cannot get it to boot without taking it apart now. I am wondering if there is a software way to automatically have my device turn on if it has the power/is plugged in.
I do have another skyrocket (fully unjiggably bricked) but I think the transplant of the power switch will be to big a task.
uhhdoug said:
my skyrocket has a broken power button. it has been finniky for a while now and basically will not boot the device 9/10 times.. with the combination of volume wake and search long hold to shut off screen I can live with it BUT I cannot get it to boot without taking it apart now. I am wondering if there is a software way to automatically have my device turn on if it has the power/is plugged in.
I do have another skyrocket (fully unjiggably bricked) but I think the transplant of the power switch will be to big a task.
Click to expand...
Click to collapse
Something like that would have to be created. That would need deep code changing, kernel hacking most likely. Just get your hands dirty.
Here's a video to get you started: http://www.youtube.com/watch?v=pKXRQFRH1eU
haven't checked the video so be careful and take your time and don't do anything you're not comfortable with.
Hit the thanks if this helps!!
re: battery issue
Its not at all surprising. Even in my skyrocket, I've experienced the same issue with power button. Finally I had got it replaced and believe me that was really much easier that having to put up with the 1000 failed attempts in trying to get that power button work once. The repair guy actually changed a spake power button within 15 minutes. It wasn't difficult at all .
To switch it on .. Its gonna have to be a pain because it involves a kernel change.. But if you have booted up you can use the software solution, play store these apps .. They are similar to the assistive touch on iPhone .. TouchMe , assistive touch, easyTouch
Hey guys,
I need some urgent help.
My Nexus 5 device is not booting. It stucks at the bootlogo then powers off and restarts again.
Normally it wouldnt be hard to fix such an issue but the problem is :
I can't boot into bootloader (bootloader appears for 1 second then phone powers off)
I can't boot into Recovery mode (Recoverymode appears for a second then phone powers off)
I can't get my phone into fastboot mode, - it appears for a few seconds durign the bootloop as an "unknown device", but I am not able to flash a new bootloader/factoryimage.
I tried like every possible option what I can do, but nothign worked for me.
What else can I try since I can' get my phone into fastbootmode?
Bootloader is unlocked
Secureboot is enabled
(from what i can see in these 2 seconds where the bootlaoder pop's up)
Is there a way to recover my nexus5?
Symptoms of broken starter button
Posté depuis Nexus 5 / Miui7 by Miui-France
Remove the motherboard and clean around the power button. When you have cleaned around the power button, quickly press and release the power button using more pressure than normal a few times, try to boot again.
Thanks for the tips!
I never thought that a broken Button could cause this issue.
I will check it as soon as I am home.
But how am I supposed to clean the motherboard, and I don't understand how cleaning the button from the outside
of the case should help to solve this problem.
Can you guys explain it a bit more detailed please? ^^
Are there good and very detailed tutorials for this?
And yes, you ideas definitely make sense because some days earlier when the Nexus5 was still
booting fine, I remember that I sometimes had the issue when I turned of the display with the power button
it instantly turned on again and I had to turn it off like 3-5 times until it really was off (standby).
To clean around the power button, you'll have to disassemble the phone which is not hard to do it you take your time and use the right tools.
https://www.ifixit.com/Teardown/Nexus+5+Teardown/19016
I noticed that the issue really was the powerbutton, - however the button was broken and
not repairable by cleaning. To repair the phone I would have to purchase a new motherboard.
In the end I decieded to purchase another phone, just saying that if someone will have the same issue in the future
try to clean first, if that wont help the powerbutton is most likely broken, and this results in a new motherboard-purchase because
the button is not repaireable by hand
The power is replaceable if the damage is confined to the power button itself.
Pixel 2, unrooted, stock, locked bootloader.
I was providing power to another pixel 2 far from a power outlet. After ~15 minutes, the phones were behaving fine. After I ate (about 45 minutes later), I unplugged the phones and my phone (the one providing power) had a black screen that would not turn on (there is no screen cover; i've heard of those causing issues with the head sensor and turning the screen off)
At first I thought the device had been drained, but the fingerprint sensor responds with the normal haptic blip. If I press the power button right afterward, the fingerprint sensor used to also flash the screen veeeeery slightly, as though it were off and being turned back on, but it no longer does that.
Troubleshooting steps so far performed:
held power button for >30 seconds: causes a long haptic blip that repeats itself every 30 seconds. No other response, and the phone acts like it's off; it no longer does the short blip on fingerprint sensor use (how I get it "on" again is a bit of a mystery, as there's no haptic feedback to represent turning on; probably something I do "boots" it silently and it starts haptic blipping once that's done)
held power button and vol.down at the same time: results vary based on whether it's "off" (after 30 sec power press). If off, nothing happens. If on, after 30 seconds I get the long and the short haptic blips in sequence.
tried to connect pixel buds to it to see if assistant would talk to me. pixel buds wouldn't connect.
charged for 20 minutes and then performed the steps above.
did NOT try calling it before I switched my sim to an older back-up device and now I can't re-activate it on the dead phone to try that.
Still no dice. Dead-seeming phone. One thing I was wondering about... I've noticed when these 2 phones are touching (stacked), they prompt some kind of linking or sharing (well, they don't NOW but they did when they were both alive). Is it possible that my phone offered to cast to the other phone and my leg confirmed while it was in my pocket? Surely it wouldn't continue to cast after being restarted? (this is a reach but it's all I can think of)
Recently discovered the alarm is still set. It went off at 7:15 this morning (correct time), but NOT with the alarm ringtone I have set. So either some settings are wonky or... maybe it's unable to mount the storage filesystem? I can either turn it off by holding the power for 30 seconds or by turning the volume down (volume keys still work)
I'm traveling with a mac right now but when I get back to a PC, is there any chance I could get somewhere with something like ADB (without wiping the device)? I might need some specific steps as I usually only tinker with scripts like wugfresh's.
Google wants to send me a refurb but the device is only 19 days old and I'd rather have a new device when I paid for a new device.
Thanks!
Don't want to quote all of that, so I'll just say that you can download the Mac version of the tools, download the latest factory image, edit the flash-all.sh to remove the -w, so you don't wipe userdata, and then just run the newly saved script. But, you do have to unlock the bootloader first.
DuckRuckus said:
you do have to unlock the bootloader first.
Click to expand...
Click to collapse
Thanks for the reply. I'm back home so I can use my PC now... but I haven't unlocked the bootloader, so I gather I'll lose all my data if I unlock it? Is there any way to extract data without being able to enable data transfer mode on the device?
Also, if I can't get a screen, I can't boot to fastboot or recovery... Will I be able to actually do anything at all?
It used to happen every few days, not a massive deal, but it's happened five times today. Including overnight, meaning my alarm failed to go off.
Ambient display stays on - sometimes the clock even keeps running - but none of the buttons do anything. Only escape is press and hold power until it reboots. Or, sometimes I'll be doing something on the phone and it'll just completely freeze. Again, press and hold power is all I can do. Weirder, sometimes I can click on an app, and it'll just pull up the start of the load screen for that app, I can hit home or switch apps and that acts fine, it just won't actually open any of my apps or do anything in them. Again, have to press and hold power to reboot.
Rooted, Android 12, no other modifications to the OS that I'm aware of.
koberulz said:
It used to happen every few days, not a massive deal, but it's happened five times today. Including overnight, meaning my alarm failed to go off.
Ambient display stays on - sometimes the clock even keeps running - but none of the buttons do anything. Only escape is press and hold power until it reboots. Or, sometimes I'll be doing something on the phone and it'll just completely freeze. Again, press and hold power is all I can do. Weirder, sometimes I can click on an app, and it'll just pull up the start of the load screen for that app, I can hit home or switch apps and that acts fine, it just won't actually open any of my apps or do anything in them. Again, have to press and hold power to reboot.
Rooted, Android 12, no other modifications to the OS that I'm aware of.
Click to expand...
Click to collapse
Backup all your data while you can, you may be in the beginning stages of hardware failure. Some people with the following problem had freezes before the phone failed completely.
[FIX] Pixel 3 QUSB_BULK_CID:xxxx_SN:xxxxxxxx
Hi, I have a Pixel 3 that won't turn on, won't charge, won't get into recovery mode, and gets recognized as QUSB_BULK_CID:xxxx_SN:xxxxxxxx when connected to a pc. I am an ignorant regarding phones, flashing, etc... Is there any way of getting...
forum.xda-developers.com
If that is not your problem, completely wiping the phone and flashing a new image may help.
It's been years at this point, I'd be very surprised if it all suddenly died in a way connected to this. There's nothing on my phone that's critical that I don't have backed up, though.
Not sure if there's any way to determine if I might have or get the EDM thing?
koberulz said:
It's been years at this point, I'd be very surprised if it all suddenly died in a way connected to this. There's nothing on my phone that's critical that I don't have backed up, though.
Not sure if there's any way to determine if I might have or get the EDM thing?
Click to expand...
Click to collapse
Not until it fails.