note8 SM-N950U failed to update ROM, black screen, unable to boot - Samsung Galaxy Note 8 Questions and Answers

I failed to update ROM for note8 SM-N950U. Now the phone has a black screen and cannot be turned on or charged. No response can be made to any button. Is there any other way? Thanks

silencehope said:
I failed to update ROM for note8 SM-N950U. Now the phone has a black screen and cannot be turned on or charged. No response can be made to any button. Is there any other way? Thanks
Click to expand...
Click to collapse
Does the phone get recognised by your PC when you connect it? Does Device Manager show a new entry?

Related

[Q] Still have the stock rom, why did my phone stuck?

Hi, first of all I must say that I never used any custom rom or flushed my phone yet. I still use the stock rom provided by LG. So I was typing a text a message today and suddenly phone locked and I couldn't do anything. I clicked power button and pressed again to get the main screen but some part of the screen was total black and some part was just fine(still I can't do anything btw). So I just pressed power button longer to close; I could close it but then when I tried to boot, I just got stuck at LG logo and it's still the same(30 minutes passed!!!). How about that? What should I do?
Remove battery.
Wait 10 seconds.
Then put battery back and turn it on again.
I just did it; over 3 minutes passed and it's still stuck at LG logo!!
my advice alhough i have not worked with lg phones would be to reinstall the stock rom. i am unsure from your post if you were using a custom rom when this happened when you bot the phone if its like the htc phones you can hold the voldown and power buttons to get into what is essentially the bios of the phone i hope this helps
Sent from my ADR6400L using the XDA mobile application powered by Tapatalk
neo_crm said:
I just did it; over 3 minutes passed and it's still stuck at LG logo!!
Click to expand...
Click to collapse
Then, connect the phone to the usb in a windows computer.
Run the LGMobile Update tool.
Go to the menu Customer Support/Recovery Phone
Follow the instructions there.
I connected the device via USB and opened the Recovery Mode in lg mobile update tool, but it doesn't recognize my device. I already installed usb drivers and they were working correctly couple of days ago. What else I could do? Any help would be appreciated...
hi! How about hard reset?
Sent from my LG-P970 using Tapatalk
BoyBawang2 said:
hi! How about hard reset?
Sent from my LG-P970 using Tapatalk
Click to expand...
Click to collapse
Well, it seems like I have to do one, because I fell that it'll never come back so where should I begin for a hard reset?
Remove battery
Put it back
Hold Volume Up.
While holding, plug in USB cable to computer.
Your screen should say S/W Upgrade.
Run LGMobile Update.
Customer Support/Recovery Phone.
dcardozo said:
Remove battery
Put it back
Hold Volume Up.
While holding, plug in USB cable to computer.
Your screen should say S/W Upgrade.
Run LGMobile Update.
Customer Support/Recovery Phone.
Click to expand...
Click to collapse
I did exactly what you said. It could successfully update the phone, it's still stuck at lg boot logo. So the next thing I should do is a hard reset?
After what you did, it could take a few minutes to start, that is normal after rom changes.
I'm not aware of a 'hard reset' for the P970, beyond what you did.
I think this could be an indication of a hardware failure.

[Q] Help.. I can't boot up my phone.

Hello.. I flashed the M preview on my N6. It was too buggy for me so I tried restoring my nandroid backup I made. After that, I don't really know what happened. The toolkit searched for adb fastboot on my phone and thats when the screen went black and a quick pop up saie: "Your device failed verification and may not work properly!" It wont do anything when I use the combo volume and power. If I hold down the power for like 15 seconds , the "Google" logo appears and then it quickly says: "Your device failed verification and may not work properly!" It only stays on the screen for like 2 seconds. I have never seen this before. Can someone please give me some advice? It wont turn on. Thank you so much..
dave2metz said:
Hello.. I flashed the M preview on my N6. It was too buggy for me so I tried restoring my nandroid backup I made. After that, I don't really know what happened. The toolkit searched for adb fastboot on my phone and thats when the screen went black and a quick pop up saie: "Your device failed verification and may not work properly!" It wont do anything when I use the combo volume and power. If I hold down the power for like 15 seconds , the "Google" logo appears and then it quickly says: "Your device failed verification and may not work properly!" It only stays on the screen for like 2 seconds. I have never seen this before. Can someone please give me some advice? It wont turn on. Thank you so much..
Click to expand...
Click to collapse
were you able to resolve? i have same issue now
geedee3 said:
were you able to resolve? i have same issue now
Click to expand...
Click to collapse
Use fastboot and flash a factory image.
My phone won't stay on long enough and I can't get into recovery or fastboot mode ...

I believe I have soft bricked/hard bricked my LG G4 h811 . Can anybody help me?

Okay so I'm a newbie to rooting. And I was on this step where I let the tool install some files to my phone and it said to unplug and pull battery, the next step said to hold power and - volume down button and release power when I see the LG logo while holding the - volume down after a second quickly hold power and - volume down to access factory data reset and settings. So it restored my phone back to factory settings and no root, the video said to try again but the problem is that my phone will power on anymore and is unresponsive when I charge it. So I took the battery out for a min. and the phone turned on but got stuck on LG logo and freezes then it shut off. I tried to boot it up again on LG logo screen, the corner it says Secure booting Error
Error code: 1009
MODIFIED!
And it froze and shut off. Now whenever I try to boot it up it gets stuck on LG screen and shuts off or when I'm in factory reset it freezes when I press yes. I put it into download mode and try to install the LG G4 stock kdz file but my computer couldn't connect with my phone for example, I plug my phone into the computer via USB but nothing, no sound and no charge now it won't turn on at all. I hope this wasn't too hard to understand and I'll greatly appreciate any kind of help, thank you.
.
I wonder if LG or T-mobile is pushing an anti-root tool that hard bricks the devices. My device was working fine until this morning after my alarm went off - Mind you, I have been rooted since the root came out. I unplugged the phone, put it in my pocket, and it got really hot, then it does the same as yours; except, my phone shows bootloader:unlocked when i try to reset it. So, yeah, you are hard bricked. No recovery from what I hear. U got a paper weight. I do not believe any of the G2 or G3 fixes will unbrick our devices. I think it may need a jtag.
Ken_Kaneki said:
Okay so I'm a newbie to rooting. And I was on this step where I let the tool install some files to my phone and it said to unplug and pull battery, the next step said to hold power and - volume down button and release power when I see the LG logo while holding the - volume down after a second quickly hold power and - volume down to access factory data reset and settings. So it restored my phone back to factory settings and no root, the video said to try again but the problem is that my phone will power on anymore and is unresponsive when I charge it. So I took the battery out for a min. and the phone turned on but got stuck on LG logo and freezes then it shut off. I tried to boot it up again on LG logo screen, the corner it says Secure booting Error
Error code: 1009
MODIFIED!
And it froze and shut off. Now whenever I try to boot it up it gets stuck on LG screen and shuts off or when I'm in factory reset it freezes when I press yes. I put it into download mode and try to install the LG G4 stock kdz file but my computer couldn't connect with my phone for example, I plug my phone into the computer via USB but nothing, no sound and no charge now it won't turn on at all. I hope this wasn't too hard to understand and I'll greatly appreciate any kind of help, thank you.
.
Click to expand...
Click to collapse
Have you tried finding the stock kdz putting it in download mode and reflashing it.
gillim74 said:
Have you tried finding the stock kdz putting it in download mode and reflashing it.
Click to expand...
Click to collapse
I don't think I could do that, since my pc can't connect with my phone. I plug my phone via USB to my pc but there is no connection
Ken_Kaneki said:
I don't think I could do that, since my pc can't connect with my phone. I plug my phone via USB to my pc but there is no connection
Click to expand...
Click to collapse
Redownload the drivers put your phone in software update mode connect your usb and see if it will recognize it then.
gillim74 said:
Redownload the drivers put your phone in software update mode connect your usb and see if it will recognize it then.
Click to expand...
Click to collapse
I can't, my phone won't even power on, I even left it charging while i went to work. And still no power, but it did get warm at the top of the screen and on the back around the camera.???
Ken_Kaneki said:
I can't, my phone won't even power on, I even left it charging while i went to work. And still no power, but it did get warm at the top of the screen and on the back around the camera.???
Click to expand...
Click to collapse
Sounds like you have the motherboard lg had issues with.contact them.
gillim74 said:
Sounds like you have the motherboard lg had issues with.contact them.
Click to expand...
Click to collapse
Wow you are quick to respond. Okay I'll give them a call. Thanks for your help.
Ken_Kaneki said:
Wow you are quick to respond. Okay I'll give them a call. Thanks for your help.
Click to expand...
Click to collapse
Anytime
gillim74 said:
Anytime
Click to expand...
Click to collapse
Alright so I didn't give lg a call, but I've been able to get my phone into "Firmware Update Do not unplug the USB connection until the process is complete", now what guys? **********never mind, when I try to install stock firmware, it keeps disconnecting my phone so yeah....
Ken_Kaneki said:
Alright so I didn't give lg a call, but I've been able to get my phone into "Firmware Update Do not unplug the USB connection until the process is complete", now what guys?
Click to expand...
Click to collapse
Look for the kdz post and follow those instructions and your phone will be like new.

LG L90 D410HN Hard Bricked

I have a LG L90 D410HN that is hard bricked, it does not go into recovery or download mode. I had installed some time ago the Lineage 14.1 rom.
I'm trying to follow a tutorial I found here: https://forum.xda-developers.com/lg-l90/general/guide-unbrick-hard-bricked-l90-variants-t3173429, but when I connect it to the pc (without battery), even I have installed all the drivers, it only appears as Unknown Device (Device Descriptor Request Failed) and when I put the battery, it is not recognized just remains rebooting in the LG logo. Any suggestions on what I can do? Thank you in advance.
lydyanah said:
I have a LG L90 D410HN that is hard bricked, it does not go into recovery or download mode. I had installed some time ago the Lineage 14.1 rom.
I'm trying to follow a tutorial I found here: https://forum.xda-developers.com/lg-l90/general/guide-unbrick-hard-bricked-l90-variants-t3173429, but when I connect it to the pc (without battery), even I have installed all the drivers, it only appears as Unknown Device (Device Descriptor Request Failed) and when I put the battery, it is not recognized just remains rebooting in the LG logo. Any suggestions on what I can do? Thank you in advance.
Click to expand...
Click to collapse
What did you do that might have bricked it?
0000.0000.00 said:
What did you do that might have bricked it?
Click to expand...
Click to collapse
Nothing specific, I turned the phone off and took out the battery only. When I turned on again, it has been stuck in the LG logo, restarting endlessly and cannot enter download or recovery mode. As soon as I put the battery in the phone, it turns on without pressing the button.
What I think may have happened is I have removed the battery before the system finished shutting down or something like that.
lydyanah said:
Nothing specific, I turned the phone off and took out the battery only. When I turned on again, it has been stuck in the LG logo, restarting endlessly and cannot enter download or recovery mode. As soon as I put the battery in the phone, it turns on without pressing the button.
What I think may have happened is I have removed the battery before the system finished shutting down or something like that.
Click to expand...
Click to collapse
What happens if you boot phone without battery inside but connected to charger?
0000.0000.00 said:
What happens if you boot phone without battery inside but connected to charger?
Click to expand...
Click to collapse
After a moment that is connected, the battery symbol flashes with a yellow triangle next to it with a question mark in the triangle.
lydyanah said:
After a moment that is connected, the battery symbol flashes with a yellow triangle next to it with a question mark in the triangle.
Click to expand...
Click to collapse
Can you also try booting the phone with battery inside and charger connected then remove battery once started booting and see if that works. Also, how did you try to get into download mode.
0000.0000.00 said:
Can you also try booting the phone with battery inside and charger connected then remove battery once started booting and see if that works. Also, how did you try to get into download mode.
Click to expand...
Click to collapse
The power button is shorted, I measured with a multimeter to confirm. I think only technical assistance will save my phone, right?
lydyanah said:
The power button is shorted, I measured with a multimeter to confirm. I think only technical assistance will save my phone, right?
Click to expand...
Click to collapse
I think you have to change the power button or wiggle it a bit for it to work then.
0000.0000.00 said:
I think you have to change the power button or wiggle it a bit for it to work then.
Click to expand...
Click to collapse
This is beyond my abilities, the button is soldered. I will go to a repair center. Thank you for trying to help me!
lydyanah said:
This is beyond my abilities, the button is soldered. I will go to a repair center. Thank you for trying to help me!
Click to expand...
Click to collapse
Ok, you are welcome. But for temporary fix the power button probably got stuck pressed so try to pull the button out so it is not pressed anymore.

Note 9 softbricked, no download mode, stuck on white screen

Hello! Greetings from techmasters. My phone is softbricked again! , I can not enter download mode, When I try to enter download mode the phone stays off on black screen and won't turn on, after running battery disconnect I can boot my phone but nothing but a white screen comes up with this error (See picture) "Boot signature fail"
"Reboot to avoid warranty bit set"
, I can not boot my phone as it bootloops on this screen, What can I do ? PC does not detect it at all, Nothing detected anywhere. Thanks! Sometimes the error text goes distorted too, model is N960F/DS.
Pictures: https://imgur.com/a/67OFzHQ
Any idea how I can turn it on? I let it run out of battery several times and still nothing, Any suggestions I will take
any help?
techmasters said:
any help?
Click to expand...
Click to collapse
Did you tried if Odin recognize that phone is connected? I saw you wrote that PC don't see your phone but what happens when you have Odin active?
Ninolina said:
Did you tried if Odin recognize that phone is connected? I saw you wrote that PC don't see your phone but what happens when you have Odin active?
Click to expand...
Click to collapse
Odin doesnt see it
techmasters said:
Odin doesnt see it
Click to expand...
Click to collapse
Too bad.
What were you doing with your phone just before this mess happened?
Ninolina said:
Too bad.
What were you doing with your phone just before this mess happened?
Click to expand...
Click to collapse
Flashed combination BL
Not yet solved..
Is it possible to force DL mode?
Note 9 bricked
Have you tried this combination? : With the phone off, press at the same time, button volume - and button bixby, without releasing the buttons connect to the PC, and wait if it enters download mode.
telecopc said:
Have you tried this combination? : With the phone off, press at the same time, button volume - and button bixby, without releasing the buttons connect to the PC, and wait if it enters download mode.
Click to expand...
Click to collapse
yes and it doesnt work:crying:
Fixed not yet
techmasters said:
Fixed not yet
Click to expand...
Click to collapse
Hi, can you enter recovery? Force to enter recovery then flash rom.
Tricov said:
Hi, can you enter recovery? Force to enter recovery then flash rom.
Click to expand...
Click to collapse
Nope
I told you, you should have flashed unfutw.zip to get you fixed.
Any ideas?

Categories

Resources