Black screen A70 - Samsung Galaxy A70 Questions & Answers

My A70 has a black screen. There is life behind it and Odin recognizes the phone...COM3. I cannot get the phone to restart with volume down and power etc. Can I use ODIN to restart the phone without making any updates? Thanks.

Related

Black screen, can't repair because it's rooted

Hey guys I have a relatively new Samsung GS3. I've been using it with a custom rom for a few weeks now -- no issues. Today, using the Facebook app, my screen went black and now it doesn't work. I can turn on my phone -- it vibrates and it shows the menu and back buttons lit up, but that's it. My phone boots, but the screen does not work.
I figured this is a pure hardware failure and I'll need to contact AT&T. However, I have a custom ROM and figure they will refuse to service the phone due to said ROM. Can anybody help me?
I imagine I have to use Odin to flash a stock image, right? But I can't do that without seeing my screen. I hold volume down, home and power and try to put it into download mode -- even hitting the up key after doing it a few times -- but when I plug into my computer. it looks like my phone is on and not in download mode. :/
Please advise, with a much detail as you can.
You can use an mhl adapter to mirror ur phone screen on a monitor or tv....

S 3 Start-Up Problem

Hello,
I am having an issue with my S 3. It is not booting up as it should. The model is SGH-1747M.
I have tried the following and have had the following results:
1) The phone is non-responsive when attempting to power it on with the power button.
2) If I remove the battery, with the phone not plugged in, and then put the battery back in, the phone begins to power on by itself. It vibrates once and then loads to the Samsung screen and then goes off.
3) If I plug the phone in without the battery, the phone vibrates once and the red charging light comes on but then goes off after a couple seconds.
4) If I plug the phone in without the battery, and then insert the battery as soon as the red light comes on, the charging screen comes on but then the phone goes off after a couple seconds.
5) If I put the battery in with the phone unplugged and hold Volume Down, Power and the Home Button, the phone boots to the screen where you can push up on volume to flash new firmware. If I stay on this screen without pressing anything, the phone turns off after a couple seconds. If I push up on the power button, it goes to the screen with the green android man but then turns off after a couple seconds.
6) If I put the battery in with the phone unplugged and hole Volume Up, Power and Home and then release them on the Samsung screen, blue writing pops up in the top left corner (I couldn’t read quick enough what it says) while still on the Samsung screen and then it loads to a screen saying Samsung Galaxy S III and then the phone turns off.
These problems started when I attempted to connect my phone to my laptop to transfer songs over to it. I connected the phone and the battery was charging, but it wasn’t showing up as connected on my laptop. So, I turned the phone off to restart it but when I went to turn it back on, these issues started.
The phone was rooted and has been for the last 7 months without any changes to the firmware or updates to the firmware in that time period and has not encountered any problems prior. I’m not sure what firmware the phone was on prior to this.
If anyone could offer any assistance with this it would be greatly appreciated.
Thank you in advance.
Hi,
I'm no expert, but it looks like a faulty/stuck power button. It's normal for the phone not to completely boot up when it is powered off and then plugged in to USB. But it is not normal for the phone to reboot itself when in recovery or in Android. That's why I think the power switch might be the cause.

[Q] Display and touch screen major issues following lollipop update.

Problems with my Samsung Galaxy Tab S 8.4 SM-T705:
1st: October 2014
2 weeks after buying, my tablet's battery drained overnight from 45% to zero. Next morning, I turned my tab on after charging to find out that the Tab starts but without any Samsung GAlaxy Tab S logo or Samsung Logo and the Screen has turned green, rendering it difficult to read in auto brightness mode or low brightness mode.
I restarted the device 2-3times and the device started working normally. This was my 1st device restart. I never used to power off the device before.
In 1st 6months, this greenish display problem n logo problem occured 2-3times, and i ignored it, because, it used to get resolved by itself with restart and I had no service centre in and around 50km to my work place.
2nd: January 2014
My device all of a sudden stopped working.. actually hanged.. I managed to turn it off but failed to restart it.
Later I realised that the device has restarted, but the screen was not responding when the screen blinked for a moment with the opening of book cover.. and the back cover of device was warm..
Googling taught me the way to access recovery screen n I opened recovery mode with "power+vol down+home key" and pressing vol down in recovery screen to restart tab.. again the tab started working fine..
3rd: Lollipop update: May 2015
I did Lollipop update. The device was smooth to operate at first. But gradually, i noticed that unlocking the tab failed to light up the display everytime, just the soft keys lighted up. But one day, the device freezed with no response from touch screen. I was unable to switch off the device also.. I had to drain the battery by playing music using S voice to turn the device off. "power+vol down+home key" too was not working.
On googling, I learned to reset device with "power+vol up+vol down" keys pressed together. finally the device restarted, but the device used to hang occassionally.
Googling let me know that i need to factory reset device upon firmware update for normal functioning, which i didn't do after update. so, I backed up my device, uninstalled many apps to make the device run a bit smooth and did a factory reset.. Resetting didn't improve the situation much, but now, the device display failed to light up on a regular basis on unlocking most of the time..
Now the situation is that, the device turns on, finger print scanner works, all apps n everything working, but display remains black, and touch screen is not responding.. using sidesync, everything on Tab can be accessed via laptop.
Tricks tried:
1) Factory reset
2) power+ vol up+vol down
3) power+ vol up+home key
4) power+ vol down + home key
5) Power off using sidesync and then restart
Results: All failure. Everything works but the display never lights up normally..
Plzz help....:crying::crying:
Bump. I'm starting to have similar problems with my SM-T800 running 5.0.2. I open the cover and the device fails to turn on. I press the power button and the screen stays black but the notification bar turns on. I can shake the crap out of the device and the screen stays black but I can see the notification bar flicker. Driving me batty.
If i had any problems like you guys, I would just return it to the place i bought it, for a refund or replacement or even a repair, post it to the service centre if it`s too far to travel too.
You problems sound like battery and or loose connector inside your tablet, it happens frequently on Samsung tablet for the connectors to come loose, if the tablet is dropped or twisted, no outside damage might be seen.
John.

Phone does not turn on

Here's the story.
I was playing games in my phone until I slept but forgot to remove my phone from being charged. When I woke up, my phone no longer turns on.
Here are what's happening and current status
- Rooted and has custom ROM
- Currently not detected by Odin when plugged into PC.
- When I turn on the phone, the Samsung logo does not appear. Order of screen appearance is that is is lit up but the screen is still black, then less lit then unlit.
- The scenario above also happens when I plug my phone in the PC but there is no light indicating that the phone is being charged
- I tried the Home + Power + Vol Up or Vol Down combination but the phone does not reset. Recovery or download mode does not show up.
Can anyone help on what happened?
Regards,
Cedrick
UPDATE
Phone can now be detected by Odin. I can flash the Bootloader and TWRP recover. However, there isn't anything that appears on the screen of the phone. Do you think this is more of broken LCD?
Also on the screen, there is a part that is white and this is the hottest part. The phone is gotta be warm when turned on but this part is too hot.
cedrick9998 said:
Here's the story.
I was playing games in my phone until I slept but forgot to remove my phone from being charged. When I woke up, my phone no longer turns on.
Here are what's happening and current status
- Rooted and has custom ROM
- Currently not detected by Odin when plugged into PC.
- When I turn on the phone, the Samsung logo does not appear. Order of screen appearance is that is is lit up but the screen is still black, then less lit then unlit.
- The scenario above also happens when I plug my phone in the PC but there is no light indicating that the phone is being charged
- I tried the Home + Power + Vol Up or Vol Down combination but the phone does not reset. Recovery or download mode does not show up.
Can anyone help on what happened?
Regards,
Cedrick
Click to expand...
Click to collapse
Seems like the screen is borken

screen stays dark with boot sound

dear community
my neighbour gave me his Z1 compact because it did not work anymore.
It was stuck on loginscreen, when i touched the unlock button it vibrated, but nothing else happened.
I could however download all his photos on my Win7PC by just plugging it on USB
but it kept staying unresponsive, no way to get beyond lockscreen
So I used SonyMobileFlasher and unlocked the bootloader without any issues - no errors.
Then I flashed a new firmware obtained through XperiFirm without errors
Now, when I boot, I can hear the boot-melody (??)
but the screen stays dark.
I can connect the phone via flash mode and fastboot mode
I can switch it off by pressing volUp+Power (three vibrates)
from Off i press power, it plays the melody, but the screen stays dark
Is it a hardware damage?
Is there anything I can do for the phone?
thx for ur input
magusberlin said:
dear community
my neighbour gave me his Z1 compact because it did not work anymore.
It was stuck on loginscreen, when i touched the unlock button it vibrated, but nothing else happened.
I could however download all his photos on my Win7PC by just plugging it on USB
but it kept staying unresponsive, no way to get beyond lockscreen
So I used SonyMobileFlasher and unlocked the bootloader without any issues - no errors.
Then I flashed a new firmware obtained through XperiFirm without errors
Now, when I boot, I can hear the boot-melody (??)
but the screen stays dark.
I can connect the phone via flash mode and fastboot mode
I can switch it off by pressing volUp+Power (three vibrates)
from Off i press power, it plays the melody, but the screen stays dark
Is it a hardware damage?
Is there anything I can do for the phone?
thx for ur input
Click to expand...
Click to collapse
Seems like busted display to me. Flash recovery and see if touch screen works in recovery. If not, definitely hw.
thx for ur reply, i flashed TWRP- several trys, now I can see the TWRP lock screen, but when I swipe to log in it vibrates, soon after the screen scrambles away, vertical lines just fade and then crash-off.
seems very much like the screen is defect? not worth replacing, seems like a whole huzzle to replace that screen
pitty, one more device to trash.
i am seriously looking into fairphone2, would be nice to replace the screen so easy.
magusberlin said:
thx for ur reply, i flashed TWRP- several trys, now I can see the TWRP lock screen, but when I swipe to log in it vibrates, soon after the screen scrambles away, vertical lines just fade and then crash-off.
seems very much like the screen is defect? not worth replacing, seems like a whole huzzle to replace that screen
pitty, one more device to trash.
i am seriously looking into fairphone2, would be nice to replace the screen so easy.
Click to expand...
Click to collapse
Maybe not extremely easy, but there are guides in the forum here for screen replacement, if your feel up to it.

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