Develop Bugs

Lock screen gone

Usually after pressing the power button the pink lock screen from tmobile would show up. But today after pressing the button to unlock the phone theres no lock screen, it just goes straight to the homescreeen. I tried putting a password and it still doesnt bring up the lock screen. Has this happened to anyone else?
Sent from my SGH-T989 using XDA App

This is still an issue after a restart?

that would have been normal on CM7 if you disabled lock screen
but on TW... it's rather unusual, specially when we still have no root
can you try installing super user meanwhile you are at it?

mziol said:
This is still an issue after a restart?
Click to expand...
Click to collapse
Yea, i even took out the battery
Sent from my SGH-T989 using XDA App

Also, theres another problem. When I hold the power button the phone shuts off automatically instead of the menu asking you want to turn of the phone.
Sent from my SGH-T989 using XDA App

This definitely sounds like a faulty phone, I would return it. These options are normally present in a CM7 build like allgamer said.

I don't think that it is a faulty phone. Watch the review by Mobile Syrup and the lock screen on their phone is gone to.

mine is doing the same no lock screen and phone shuts off as soon as I hold the power button
Edit: just tried setting a lock screen with pin and nothing still hmmm
Sent from my SGH-T989 using XDA Premium App

kkg720 said:
I don't think that it is a faulty phone. Watch the review by Mobile Syrup and the lock screen on their phone is gone to.
Click to expand...
Click to collapse
So weird. You could try contacting the guys over at Mobile Syrup that did the review.

So i just did a factory reset and everything is fine now.

No lock screen and when I click on power bottom it just shock down without the 3 choices (power off, airplane mode and silent)
pinadala gamit ang galaxy s2 (premium xda)

If and when I get this phone you'll have about 9 lockscreens to choose from and a variety of power options (as well as a ton of other mods and hacks).
Just click on a few of the links in my sig.

Yes I can't wait
Whitehawkx said:
If and when I get this phone you'll have about 9 lockscreens to choose from and a variety of power options (as well as a ton of other mods and hacks).
Just click on a few of the links in my sig.
Click to expand...
Click to collapse
Sent from my SGH-T989

how do you do a factory reset?
What will a factory reset erase? Will i have to root again?
This is my problem, I have been using my sim card for like 6 years now and today it just stopped working in my phone..
So I took it out and put it back in , still doesnt work, and right after that happend I realized that my lock screen had ceased functioning which i read is a known issue.
So i lost all my contacts, i will go have to get a new sim tomorrow, still don't know if i should trade the phone is for a new one.

this problem had something to do with the *#0*# command, and and testing the camera while in that menu. i just reflashed the deodexed rom and it was fine.

I had this problem too. I had to do a factory reset to fix the problem.
Here's another thread discussing a potential cause of the issue: http://forum.xda-developers.com/showpost.php?p=18702063&postcount=12

There are programs out there to use until then. Right now I'm using Quick Boot and it seems to do the trick just fine.

Whitehawkx said:
If and when I get this phone you'll have about 9 lockscreens to choose from and a variety of power options (as well as a ton of other mods and hacks).
Just click on a few of the links in my sig.
Click to expand...
Click to collapse
And you should have got the phone on release day lol bring on the hacks
Sent from my SGH-T989 using Tapatalk

I'm rooted and used Titanium Backup, and a few other "safe" apps. Then suddenly my screen lock dissapeared. Battery pulls would not restore it and neither would any settings fiddling. When I held the power button down two seconds, it would shut the phone off instead of the usual popup that gives you the option to power down.
The only way I was able to restore it was reset the phone to factory settings. Then I restored via a CW backup (wow CW is awesome)
Anyway is this a common thing? I can't imagine this happening to an iPhone. What could cause this--do I have to erase my phone next time this happens? What a PITA!!!

Did you try the numeric combo which gets you into the phone diagnostics? If so we discovered that the megacam test hoses the lockscreen for some reason.
Using tapatalk on my Galaxy 2 to post this!

Screen Difficult to Unlock During Charging

Has anyone else noticed that when charging from an outlet, the phone lockscreen becomes less responsive and harder to unlock, or is this just a problem with my phone?

I have had this issue and returned my phone that was ha in that issue for a new one? I would say it's potentially fixable via flashing a custom tom.
Sent from my SGH-T989 using xda premium

Shawnkanan said:
I have had this issue and returned my phone that was ha in that issue for a new one? I would say it's potentially fixable via flashing a custom tom.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
That happened to me after a couple ROM switches. What I did was go into CWM and actually go to mounts and storage and format data, system, cache, emms (sd card).
Then I did the standard wipe user settings, cache... installed new rom, wiped dalvik cache and fixed permissions.
After that it was completely reset in every possible way and things worked fine.

Medikay said:
Has anyone else noticed that when charging from an outlet, the phone lockscreen becomes less responsive and harder to unlock, or is this just a problem with my phone?
Click to expand...
Click to collapse
If you're not using the original charger or a non-grounded connection you run the chance of malfunction while plugged in. There was a similar issue on the Sensation.......

Mine acts the same and is also slow when plugged into charge. I assumed it was a Samsung underclock feature to make it charge quicker.

[Q] Wake from black screen (Sandvold beta 0.14)

Hi.
Did a full wipe before installing Sandvold beta 0.14 (was running 0.10.1 before).
Sometimes I can't wake it using the power button. The phone i running, as I can see a notification flashing the LED.
It has happened 3 times since Friday, 2 times it happened when it has just been in my pocket, 1 time where it was in the charger, although fully charged to 100%. After removing it from the charger, the LED was green and didn't turn off as it normally does.
I have to remove the battery and reboot it, to "fix" this. Any ideas?

MadsBen said:
Hi.
Did a full wipe before installing Sandvold beta 0.14 (was running 0.10.1 before).
Sometimes I can't wake it using the power button. The phone i running, as I can see a notification flashing the LED.
It has happened 3 times since Friday, 2 times it happened when it has just been in my pocket, 1 time where it was in the charger, although fully charged to 100%. After removing it from the charger, the LED was green and didn't turn off as it normally does.
I have to remove the battery and reboot it, to "fix" this. Any ideas?
Click to expand...
Click to collapse
You have encountered BSODs. It happened to some people using Sandvold ICS. Are you using the stock drewis kernel? If so change the governor to anything other then On Demand. If that does not work and you have overclocked your phone, lower the clock frequency by a notch.

Yes, it's "stock", besides the gps-patch-thingy. I'll try to use the SMARTASSV2 governor instead.

I read that a solution is to press POWER+VOLUME-DOWN+TRACKPAD, bat it never worked

devicer said:
I read that a solution is to press POWER+VOLUME-DOWN+TRACKPAD, bat it never worked
Click to expand...
Click to collapse
That just the hardware soft reset key configuration which reboots the phone, it doesn't fix the problem.
Sent from my HTC Original Desire with Android 4.0.4 ICS using Tapatalk 2

Random power off - requires hard reset

This is a new phone and it's happened 1/2 a dozen times or more. With good battery life remaining, I'll check the phone to find it powered off (black screen). The power button will not turn it on. I need to remove the battery for a few seconds, reinstall the battery, then it boots fine. Been on ICS FI27 since I got the phone. I'm now rooted with the stock ROM, but this issue was happening prior to the root too. Any suggestions? I'm considering calling Samsung, perhaps I got a buggy phone? Thanks.

Re: Random power off - requires soft reset
Check the battery, take the battery out and spin it, if it spins you may need a new battery.
Also the power button is known to be non functional sometimes due to a number of reasons including software and hardware.
If you just got it try and exchange it. Good lock
Sent from my SPH-D710 using xda app-developers app

Thanks for the tips. I really don't think it's the battery. I have another EP4GT that I use for work and I've swapped batteries. Had the same problem with either battery and never had the problem on the work phone at all. It happened again today. Really frustrating since it could happen in a emergency. I'll prolly holler at Samsung later this week if I get the time.

Found a thread on the Sprint Community Forums that discusses several variations of the reset issue quite extensively. I have a feeling it could be caused by my MicroSD card. I've formatted my MicroSD and will report back with my findings. Sorry I can't post links yet, but you can Google "samsung epic 4g randomly powers off"

createatodo said:
The power button will not turn it on. I need to remove the battery for a few seconds, reinstall the battery, then it boots fine.
Click to expand...
Click to collapse
Just a semantic clarification here. You are describing a hard-reset, not a soft-reset. A soft reset uses the power button (which uses the OS, i.e. "software") to reset, whereas a hard reset means forcing the phone to power off (by hardware manipulation - i.e. pulling the battery).

Hi Matt, thanks for the clarification. If I could go back and edit my title I would.
Since I've formatted the MicroSD I haven't had any more power off issues. I'll report back if I do. Thanks.

createatodo said:
Hi Matt, thanks for the clarification. If I could go back and edit my title I would.
Since I've formatted the MicroSD I haven't had any more power off issues. I'll report back if I do. Thanks.
Click to expand...
Click to collapse
You can edit the title by editing the post and clicking "Go Advanced" to reach the full page editor.

garwynn said:
You can edit the title by editing the post and clicking "Go Advanced" to reach the full page editor.
Click to expand...
Click to collapse
Thanks garwynn for the instructions - I did just that!
On another note, I had another lock up today, but this time different or at least something I have not noticed before. I got a message notification tone from the eBay app. I went to check it and the screen would not come on when pressing the power button, however the red LED was still blinking. I've never had the red LED in the past, just a black screen with no response. I had to remove the battery and reboot. Maybe just a fluke with the app this time? I read through some reviews of the eBay app and didn't really find anyone mention issues with the notifications. Oh well, I'll keep an eye on it and report anything else. Thanks.

createatodo said:
Thanks garwynn for the instructions - I did just that!
On another note, I had another lock up today, but this time different or at least something I have not noticed before. I got a message notification tone from the eBay app. I went to check it and the screen would not come on when pressing the power button, however the red LED was still blinking. I've never had the red LED in the past, just a black screen with no response. I had to remove the battery and reboot. Maybe just a fluke with the app this time? I read through some reviews of the eBay app and didn't really find anyone mention issues with the notifications. Oh well, I'll keep an eye on it and report anything else. Thanks.
Click to expand...
Click to collapse
If you're rooted can you pull a logcat? Maybe that will have some clues as well...

garwynn said:
If you're rooted can you pull a logcat? Maybe that will have some clues as well...
Click to expand...
Click to collapse
I am stock rooted using Odin one-click. I checked using the Superuser app, but didn't see any useful logs there. Would I need to purchase Superuser Elite to pull the logs your are referring to? Thanks.

createatodo said:
I am stock rooted using Odin one-click. I checked using the Superuser app, but didn't see any useful logs there. Would I need to purchase Superuser Elite to pull the logs your are referring to? Thanks.
Click to expand...
Click to collapse
I was able to pull logs using the terminal app on my AOSP build. The steps are just:
Code:
su
logcat
su for root permissions, and logcat to get the log.
You might have to find a terminal emulator to be able to do that though. I don't recall the TW ROMs having one installed by default.

Black screen!! any fix? Help!!

I just got the screen of death? or simply a black screen and i dont know how to fix it. the volume works, and i can hear music playing, no water damage. but idk if there is a fix
please help

fozzy501 said:
I just got the screen of death? or simply a black screen and i dont know how to fix it. the volume works, and i can hear music playing, no water damage. but idk if there is a fix
please help
Click to expand...
Click to collapse
What preceded the 'black screen?'
I assume you're Rooted.
Can you get into Recovery?
To get into Recovery:
Power down device.
Don't turn on
Press Power & Vol up buttons at same time
Release when device vibrates and you see Blue Recovery booting words in left upper corner.
Wipe cache, dalvik cache and boot.
If that doesn't work,
Flash Nandroid backup
If you don't have a Nandroid backup, Factory Reset, wipe cache & dakvik cache
If that doesn't work,
Go to ODIN/Download mode, and install Samsung Stock Firmware via ODIN.

Biker1 said:
What preceded the 'black screen?'
I assume you're Rooted.
Can you get into Recovery?
To get into Recovery:
Power down device.
Don't turn on
Press Power & Vol up buttons at same time
Release when device vibrates and you see Blue Recovery booting words in left upper corner.
Wipe cache, dalvik cache and boot.
If that doesn't work,
Flash Nandroid backup
If you don't have a Nandroid backup, Factory Reset, wipe cache & dakvik cache
If that doesn't work,
Go to ODIN/Download mode, and install Samsung Stock Firmware via ODIN.
Click to expand...
Click to collapse
the thing is that im not rooted at all. i dont know wat to do

fozzy501 said:
the thing is that im not rooted at all. i dont know wat to do
Click to expand...
Click to collapse
What preceded the black screen?
What were the events leading to the black screen?
Installing something, trying something new, jumping into a pool forgetting the deviceuisuin youropocket, stuff like that.. The info can help determine what is going on.
You're not rooted is ok.
The fact that some stuff is working is good.
After you answer the above, you can:
Power down phone.
Make sure the battery has at least 50% charge.
If you can't see the stats and think you may be low on juice, pluguin the device for an hour andlet charge.
After you are charged, you're going to go into the he stock recovery
By doing the following:
Power down device
Press Power & Vol up buttons at same time.
Release buttons when you see the blue words in upper left corner of screen and feel the Vibrate.
Using the volume buttons, scroll up or down to Factory Reset
Press Power button to confirm
Let the screen go through its stuff
Then you will choose reboot and enter it with the Power button.
It'll take 15-20 minutes sometimes, so just wait and see if you're device boots.
If the above fails to boot your device successfully, you'll have to ODIN Samsung Stock Firmware via your pc.

Biker1 said:
What preceded the black screen?
What were the events leading to the black screen?
Installing something, trying something new, jumping into a pool forgetting the deviceuisuin youropocket, stuff like that.. The info can help determine what is going on.
You're not rooted is ok.
The fact that some stuff is working is good.
After you answer the above, you can:
Power down phone.
Make sure the battery has at least 50% charge.
If you can't see the stats and think you may be low on juice, pluguin the device for an hour andlet charge.
After you are charged, you're going to go intodthe stock recovery
By doing the following:
Power down device
Press Power & Vol up buttons at same time.
Release buttons when you see the blue words in upper left corner of screen and feel the Vibrate.
Using the volume buttons, scroll up or down to Factory Reset
Press Power button to confirm
Let the screen go through its stuff
Then you will choose reboot and enter it with the Power button.
It'll take 15-20 minutes sometimes, so just wait and see if you're device boots.
Click to expand...
Click to collapse
i was using it fine at night and then i didnt have a charger so i used the car charger and plugged it into the power outlet and then in the morning the screen was all black.

fozzy501 said:
i was using it fine at night and then i didnt have a charger so i used the car charger and plugged it into the power outlet and then in the morning the screen was all black.
Click to expand...
Click to collapse
Ohhh.....
Hold off on the above instructions.
Do you have another battery you can try?
Or a friend whose battery you can try?
Edit:
But you can hear and adjust the volume, it's just the screen is black.
That would lead me to believe the battery is good.
Hopefully there is no internal damage form a bad car charger, etc.
Just thinking out loud.
Perhaps try the Recovery steps above after charging the battery.

Biker1 said:
Ohhh.....
Hold off on the above instructions.
Do you have another battery you can try?
Or a friend whose battery you can try?
Click to expand...
Click to collapse
i mean it says it charges wen i plug in the normal charger, but at the moment i dont have another battery
do you think thats the problem because i mean the screen is all black but the i can touch the screen and feel it vibrate wen i try to unlock the phone

fozzy501 said:
i mean it says it charges wen i plug in the normal charger, but at the moment i dont have another battery
do you think thats the problem because i mean the screen is all black but the i can touch the screen and feel it vibrate wen i try to unlock the phone
Click to expand...
Click to collapse
I see......
First see jif you can get into Recovery.
If you can or can't, let me know.
Then we'll go from there.
If you can:
First try wiping cache, dalvik cache and reboot.
If that doesn't work, do the Factory reset I wrote the steps to.

Biker1 said:
I see......
First see jif you can get into Recovery.
If you can or can't, let me know.
Then we'll go from there.
If you can:
First try wiping cache, dalvik cache and reboot.
If that doesn't work, do the Factory reset I wrote the steps to.
Click to expand...
Click to collapse
i tried the recovery options but nothing will come up

fozzy501 said:
i tried the recovery options but nothing will come up
Click to expand...
Click to collapse
It will help if you tell me the steps you did and what the device feedback was.

Biker1 said:
It will help if you tell me the steps you did and what the device feedback was.
Click to expand...
Click to collapse
i did the steps you told me hold the volume& up and power and nothing came up. i felt it vibrate but nothing came up. the screen flashes just a little bit

If you attempted to get into stock recovery following the proper procedure without success, I'd try one more time.
If failure repeats, try to boot the device into ODIN/Download mode by:
Power down device
Don't power up
Press Power & Vol DOWN buttons this time.
Hold the buttons until the device boots into ODIN mode, usually just a few seconds.
Let me know.

Biker1 said:
If you attempted to get into stock recovery following the proper procedure without success, I'd try one more time.
If failure repeats, try to boot the device into ODIN/Download mode by:
Power down device
Don't power up
Press Power & Vol DOWN buttons this time.
Hold the buttons until the device boots into ODIN mode, usually just a few seconds.
Let me know.
Click to expand...
Click to collapse
nope nothing

fozzy501 said:
i did the steps you told me hold the volume& up and power and nothing came up. i felt it vibrate but nothing came up. the screen flashes just a little bit
Click to expand...
Click to collapse
I have a feeling the device may have booted into Recovery successfully, but the screen is blacksso you can't see the Recovery screen.
When you say it lit up a little, please describe.
Does anything on the screen light up at anytime?

Biker1 said:
I have a feeling the device may have booted into Recovery successfully, but the screen is blacksso you can't see the Recovery screen.
When you say it lit up a little, please describe.
Does anything on the screen light up at anytime?
Click to expand...
Click to collapse
when it rebooted it did a small flash starting froim the top of the screen to the bottom, really fast and really quick

fozzy501 said:
nope nothing
Click to expand...
Click to collapse
I'm not 100% ccertain, but it appears your screen is shot. May not be the screen itself, but the circuitry that lights the screen.
How that happened I'm not 100% certain, but it would appear that it has something to do with car charging the device.
I went through as much troubleshooting as I know, but without the display, I don't know how to get into Recovery or ODIN, which most likely is a moot point because the issue is most likely not software related, but hardware related.
Hopefully I'm wrong

Just a heads up...when you use a car charger to charge your phone its highly recommended to unplug it as soon as its charged. I believe thats what caused your problem.
Sent from a Insane S4
Sick Made Development

Where or how much to repair the screen?
Sent from my MyTouch 4G Slide using xda premium

fozzy501 said:
Where or how much to repair the screen?
Sent from my MyTouch 4G Slide using xda premium
Click to expand...
Click to collapse
As I mentioned, I'm not sure it's the digitizer assembly that is bad or the circuitry that operates the digitizer screen assembly or both.
I'd say a digitizer/screen assembly replacement with Samsung OEM parts, including labor may be approx. $175 give or take a few bucks. Would have to check.
The reputable installer would have to specify that you won't be charged if the replacement doesn't work out. Which is obvious anyway.
I'd go to a place in person, and wait for it to be done, if that's possible in your area.
I'd also just say that my screen just stopped working. Let him determine what's up, before be he does anything.
On the other hand, maybe let the tech knows what you think the cause of the issue is, although no one is 100%. Yeah, just tell him what happened.
You plugged the phone into a car charger overnight, and in the am, the screen didn't illuminate.
Maybe it's not the screen and something more simple, maybe.
The tech would also be able to troubleshoot the device more effectively.

Biker1 said:
As I mentioned, I'm not sure it's the digitizer assembly that is bad or the circuitry that operates the digitizer screen assembly or both.
I'd say a digitizer/screen assembly replacement with Samsung OEM parts, including labor may be approx. $175 give or take a few bucks. Would have to check.
The reputable installer would have to specify that you won't be charged if the replacement doesn't work out. Which is obvious anyway.
I'd go to a place in person, and wait for it to be done, if that's possible in your area.
I'd also just say that my screen just stopped working. Let him determine what's up, before be he does anything.
On the other hand, maybe let the tech knows what you think the cause of the issue is, although no one is 100%. Yeah, just tell him what happened.
You plugged the phone into a car charger overnight, and in the am, the screen didn't illuminate.
Maybe it's not the screen and something more simple, maybe.
The tech would also be able to troubleshoot the device more effectively.
Click to expand...
Click to collapse
Keep in mind these phones have a year of Samsung warranty.
He's not rooted so he shouldn't have warranty issues.
Send it to Samsung.