Black screen after flashing a rom! (Galaxy Tab 4 SM-T235) - Galaxy Tab 4 Q&A, Help & Troubleshooting

I flashed this rom (http://forum.xda-developers.com/tab-4/development/t235-cyanogenmod-12-1-t235y-t3145795) a few hours ago and it was working perfectly. Shortly after the screen went black.
When pressing on the volume buttons, i can hear the volume adjusting so I don't think I bricked my device. I can also use the volume buttons to take a screenshot and I can hear the sound indicating that the screenshot was saved. I also tried to boot into recovery but had no such luck. I was able to boot into Odin mode and had no issues so I don't think this is a hardware problem but I can't be sure. Please help!!:crying:

Related

Volume buttons stopped working.

I had an energy rom on my hd 2 until the weekend,
The phone was off so when I powerd it up the screen went straight to volume up, (like the up volume button was stuck.)
I tried doing a hard reset but couldnt get it to work, like the buttons werent working, so I reflashed with a stock rom.
Now the volume buttons , phone button and back button dont work anymore.
Even tried to put phone into bootloader mode but no joy there either.
Anyone one think this is hardware, or is it software.
Thanks for any help.
Hi,
I have a similar problem describe here. My problem seems to be a software issue cause my volume buttons work perfect on software but they don't work during startup.

Bricked phone - no boot up!?

Hi!
I've flashed my phone quite a few times and now I can't get pass the tri color boot up screen. It all started when I started to use task29 for my flashing. Wasn't the first time I used it but the last time I did the phone just ended up with (what it seems like no rom). When I press the power button the phone loads the tri color screen saying serial or USB (if USB connected) I've tried to reflash with both SD-card and USB but it ends up the same way. Flashing reaches 100% (tried stock rom and others) but when booting up it still goes to the tri color screen.
Using SPL 1.56 OliNex.
Hopefully somewould knows what to do. Big thanks!
looks to me like your volume down button may be stuck in, see if it is and what happens after that
Hi. Well the volume button is stuck but it usually works by pressing the power button a couple of sec. now that doesn't work
sabio said:
Hi. Well the volume button is stuck but it usually works by pressing the power button a couple of sec. now that doesn't work
Click to expand...
Click to collapse
then you need to unstick the button, it will never boot properly otherwise.

Galaxy s4 stuck in *bootloop*

My phone model is I9500
It was just rooted nothing else done worked well since 5-6 months
Then suddenly it went off and the caught up in a boot loop.
I am not able to also open up the recovery or the downloading mode as the phone restarts as soon as i enter the downloading mode.
What to do Help ? :/
Rooting your phone doesn't brick it.
You pressed the wrong volume key so your phone restarts when in download mode warning.
As you have a GT-I9500 i assume you have never updated it (pre-knox) so you should be able to flash it with any firmware by Odin3.
This sounds like a stuck volume button. Give the phone a sharp tap on a table and see if the automatic reboot stops. If it does one of the buttons on the motherboard is stuck and needs replacement.
Strephon Alkhalikoi said:
This sounds like a stuck volume button. Give the phone a sharp tap on a table and see if the automatic reboot stops. If it does one of the buttons on the motherboard is stuck and needs replacement.
Click to expand...
Click to collapse
Don't you mean his power button?
No, volume button. Reason being that it immediately reboots when he enters download mode, as if download mode were cancelled. With the power button, there would be a significant delay before rebooting.
Nevertheless, the buttons come in packs of three. Might as well replace them all.
Strephon Alkhalikoi said:
No, volume button. Reason being that it immediately reboots when he enters download mode, as if download mode were cancelled. With the power button, there would be a significant delay before rebooting.
Nevertheless, the buttons come in packs of three. Might as well replace them all.
Click to expand...
Click to collapse
Aha I understand

Bricked YP2 - front screen black and cannot flash *SOLVED

Hello guys,
Hope someone is able to help here.
I got Yotaphone 2 YD206 to my hands. It has problem with front screen staying always black. Rear screen says "Turn over the phone to set up". Cannot do it as front screen is always black.
Volume buttons work and power too. Also the phone rings if someone calls me. I can shut down long-pressing power button but device always restarts. I cannot enter download neither recovery mode. Power + VOL down or power + VOL up always reboots the device back to "Turn over the phone set up" -screen (text in rear screen).
I have flasher and Lollipop firmware files. But flasher says <waiting for device>. For me it seems issue with drivers. I have tried several usb drivers (WIN10 laptop) but still no luck. ADB devices command doesn't show any devices connected.
Any ideas? I believe someone might have a trick I have tried yet.
Thanks in advance!
Edit. After fighting hours and hours with flashing I decided to open the phone and found it was just simple hardware issue. LCD flex was disconnected...put it back and phone is alive.

J700H unresponsive buttons when the phone is on but reponds on recovery and when the

Hello guys! I have been having this problem for a week now
When the phone is one home, recent, back buttons do not work at all
Power button can only put the screen to sleep but not wake it and i can switch on the phone just fine
I tried using an app to wake it through proximity sensor it only vibrates to show the app is working but can not wake the screen
Volume buttons only work when media is played otherwise not responding
as i said i can boot to recovery or download mode with home , power and volume buttons just fine and when in recovery (TWRP) everything works fine.. I can use all home and back buttons
Also when phone is off and connected to charger.. I can check the battery percent by pressing home button just fine
I can use volume buttons to go or cancel download mode just fine
The code *#0#* shows power and volume test success but not home,recent and back
The problems happen when the phone is booted up
Some apps like back button works and they are what i'm using to go home back and recent
What i tried
Hard reset
Flashed new stock rom with odin though seemed like it was just updating had to wipe os first with twrp
Flashed multiple custom roms
Flashed other j7's backup os to my phone
They all didn't work and i know it is not hardware because they work just fine when phone is off , on recovery and on download mode
Please, please help me.. It has been a week now and it hurts me i have to reboot my phone every time i receive calls because screen can't wake up and also keep it awake all the time to avoid removing the battery to reboot
Sent from my SM-A520F using Tapatalk
SaraKlaus3 said:
Hello guys! I have been having this problem for a week now
When the phone is one home, recent, back buttons do not work at all
Power button can only put the screen to sleep but not wake it and i can switch on the phone just fine
I tried using an app to wake it through proximity sensor it only vibrates to show the app is working but can not wake the screen
Volume buttons only work when media is played otherwise not responding
as i said i can boot to recovery or download mode with home , power and volume buttons just fine and when in recovery (TWRP) everything works fine.. I can use all home and back buttons
Also when phone is off and connected to charger.. I can check the battery percent by pressing home button just fine
I can use volume buttons to go or cancel download mode just fine
The code *#0#* shows power and volume test success but not home,recent and back
The problems happen when the phone is booted up
Some apps like back button works and they are what i'm using to go home back and recent
What i tried
Hard reset
Flashed new stock rom with odin though seemed like it was just updating had to wipe os first with twrp
Flashed multiple custom roms
Flashed other j7's backup os to my phone
They all didn't work and i know it is not hardware because they work just fine when phone is off , on recovery and on download mode
Please, please help me.. It has been a week now and it hurts me i have to reboot my phone every time i receive calls because screen can't wake up and also keep it awake all the time to avoid removing the battery to reboot
Sent from my SM-A520F using Tapatalk
Click to expand...
Click to collapse
Got Same Problem On my Samsung J730G , Any Fix ?

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