Won't turn on will react to to download, recovery, fastboot but black screeen - Samsung Galaxy A7 (2018) Questions & Answers

So after recharging my phone there is no cahrgin light, I cant turn it on I have tried to get into download mode it will react but it will not show up in odin screeen is still black. i just hit power up after it vibrate. If i do the recovery mode it will vibrate but still black screen same with fastboot. IS there any way to diagnose whats wrong is it the screen thats dead? samsung Switch will not connect btw. Edit** When i try to hold down both vol up and down plus powerkey I should enter download mode but it looks like my screeen is dead becouse if I use hte volum buttons i hear the volum sound going up and down. How can suddenly the screen just be black but its responsive . Tried to powe off using touch on black screen and it will power off. So is the digitalizer dead? Or would a flash with stock rom help if i manage to get into download mode?

So after recharging my phone there is no cahrgin light, I cant turn it on I have tried to get into download mode it will react but it will not show up in odin screeen is still black. i just hit power up after it vibrate. If i do the recovery mode it will vibrate but still black screen same with fastboot. IS there any way to diagnose whats wrong is it the screen thats dead? samsung Switch will not connect btw. Edit** When i try to hold down both vol up and down plus powerkey I should enter download mode but it looks like my screeen is dead becouse if I use hte volum buttons i hear the volum sound going up and down. How can suddenly the screen just be black but its responsive . Tried to powe off using touch on black screen and it will power off. So is the digitalizer dead? Or would a flash with stock rom help if i manage to get into download mode?

Related

Won't start up anymore

I haven't modded my phone in any way for about half a year, but today it suddenly turned off and won't turn back on again.
Nothing happens when I hold volume up + power button.
When I connect it to my computer through usb, it would connect and disconnect constantly, and the screen will flash the sony logo screen on and off, without successfully booting, while the LED light flashes red.
When I hold volume up while inserting the usb cable, the LED light will turn blue, successfully entering flashboot mode verified through flashtool, but nothing will show up on the screen.
Is there any hope for this phone?
edit: I can access recovery mode (power + volume down), but unless I'm plugged in through usb, the screen will turn black and shut off itself. While plugged in, I can use recovery fine, but if I have to reflash, I'm looking for a way to backup my files first.
edit2: I held volume down + power again and entered something called Team Win Recovery Project (did I access the other recovery screen some other way?) I see I can access a file manager, so I can probably move my files over to a sd card. This mode doesn't turn my screen black while unplugged.
sengakae said:
I haven't modded my phone in any way for about half a year, but today it suddenly turned off and won't turn back on again.
Nothing happens when I hold volume up + power button.
When I connect it to my computer through usb, it would connect and disconnect constantly, and the screen will flash the sony logo screen on and off, without successfully booting, while the LED light flashes red.
When I hold volume up while inserting the usb cable, the LED light will turn blue, successfully entering flashboot mode verified through flashtool, but nothing will show up on the screen.
Is there any hope for this phone?
edit: I can access recovery mode (power + volume down), but unless I'm plugged in through usb, the screen will turn black and shut off itself. While plugged in, I can use recovery fine, but if I have to reflash, I'm looking for a way to backup my files first.
edit2: I held volume down + power again and entered something called Team Win Recovery Project (did I access the other recovery screen some other way?) I see I can access a file manager, so I can probably move my files over to a sd card. This mode doesn't turn my screen black while unplugged.
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Click to collapse
then drains flashtool and put the stock firmware usually this problem since it does not there is no sistem inside.
I wiped and flashed a new firmware but the device will still randomly turn off, until now when it won't turn back on again.

Cant boot to recovery or download mode (red dot on home button)

Hi Experts,
I got a nexus 5 that won't boot into recovery or download mode.
What can i do?
*I'm not sure if it has custom recovery or original.
When i try to boot with VOL-DOWN+POWER it shows google logo and then a constant red light on the home button. if i take my fingers off it will just power off.
When i try to boot with VOL-UP+POWER it shows google logo and then a flashing red light on the home button. if i take my fingers off it will just power off.
When i try to boot with VOL-DOWN+VOL-UP+POWER it shows google logo and then a flashing red light on the home button. if i take my fingers off it will just power off.
Sounds like the battery may be completely discharged. Put it on a charger for a few hours and try again.

How can I unbrick my Alcatel one touch evolve 2?

Everytime I plug it into a charger it says is " this phone has been flashed with unauthorized software & is locked." And every time I press the power and volume button it goes to a black screen asking to boot in normal or recovery mode but none of them work it goes back to the white screen.
Is it hard bricked?

Galaxy s6, boot loop from HELL

Please help me! I own a galaxy s6 (international model, official, not rooted) which is stuck in a boot loop from hell. The led is white (not the usual "boot-up blue") and won't change colour or even turn off. It was the last straw a few hours ago when it randomly restarted, got stuck halfway through the Samsung logo and started making the loudest noise I've ever heard it produce. It was NOT a vibration. Ever since then, it has just been stuck and keeps restarting. When it does get past the "Samsung Galaxy S6" screen it just says 'no command' with the android lying on its back. I'm at a complete and utter loss. It's actually done this a few times this week, but I've always been able to at least boot it into safe mode and uninstall snapchat - which I think is the cause of all this. I can't power off the device, and even when the battery drains completely, the same 'no command' screen appears as soon as it's plugged in. I can't boot it in recovery mode as I can't get it to switch off. I think it may be battery related or even motherboard related. I can't even seem to bypass the 'no command screen. It's just sitting on my floor, charging, overheating and looking all smug. Frankly, I'm pretty damn close to hurling it out of my window.
Also, does anyone know WHY the led is sometimes white or yellow during a boot loop on newer Samsung Phones?
Put the phone in download mode by holding Power + Home + Volume Down buttons. Plug in to Odin and Flash Official Firmware or use SmartSwitch
UltraGamerHD said:
Put the phone in download mode by holding Power + Home + Volume Down buttons. Plug in to Odin and Flash Official Firmware or use SmartSwitch
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Click to collapse
Thanks but I've tried this several times. The device seems to be completely unresponsive to all commands except a force restart (power key and volume down). I can't put it in download mode or even power it off
have u tried using smart switch emergency firmware recovery? power key and volume down should force it to power down, than enter download mode vol down + home + power key.
HowJesNo said:
have u tried using smart switch emergency firmware recovery? power key and volume down should force it to power down, than enter download mode vol down + home + power key.
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Click to collapse
Whenever I use this combination of keys it just restarts and it doesn't even show up on Smart Switch when connected to my mac
if you are not be able to take your phone to download mode then repair center is the only solution.
qasim799 said:
if you are not be able to take your phone to download mode then repair center is the only solution.
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Click to collapse
Yeah. It looks like I have no other choice

LG Q6 boot problem

Hi,
i have LG Q6, at the time it wont turn it on. When i turn on vibrates and show logo for 1/2 secund, than black and vibrate again in 10 sekunds. Than is black and again vibrate maybe on 20sec or 30sec.
If i plug in charger on vibrates once, than black and again like if i turn it on. I think that was dead battery and i replace it and same problem.
I hold voluime dome and power on to go in hard reset menu and if i choose yes, and one more time yes then phone turn off.
If i go in download mode i only see for 1/4 seconds ' download mode and than goes black and vibrates once.
if i go in safe mode pwr, after logo vol down - nothins happend, when turn on i just see logo for one second and than black, i press vol down when see logo but go black and vibrate once and thats all :/
What to do ?
Battery ded
It sounds like a damaged battery. Try changing it or leave it charging for a while. if it does not react then the battery has definitely died
Edit: I had not understood the part of the changed battery. You took it with a good technician or it just made him "like I change him"

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