Help: Superuser causing freeze on startup? - General Questions and Answers

Hi, i have a rooted Samsung galaxy prevail 2, and just recently my phone has appeared to stop working. when i reboot it, the message 'shell has been given superuser permissions' is displayed and the screen is frozen. in this state none of the hardware buttons work except the power button except it only works to reboot, not turn the screen off. the low memory icon is also displayed in the top left. i should mention that this has happened before a while ago but my phone returned to normal after three days and i did nothing to fix it. this time its on day seven of freezing on every reboot. i have tried to factory reset using the hardware buttons but once it gets to the second logo and displays the message at the top left, it doesnt continue to the recovery menu and instead shuts back off. i have also tried to connect it to my computer to look through the files but it will not accept the driver the computers trying to install. i even downloaded the correct driver from the samsung website. any help? thanks.

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[Q] Samsung Galaxy Tab 2 10.1 Hacked, Touchscreen unresponsive

Samsung Galaxy Tab 2 10.1 Hacked, Touchscreen unresponsive
Hi! I need help with my tablet.
Device: Samsung Galaxy Tab 2 10.1 Tablet, model GT-P5113 TS. This model doesn't have a way to yank out the battery.
What's wrong: Touchscreen is not responding.
Current state: Attempting to drain the battery. Doesn't appear to be turned on. Factory reset apparently performed.
What happened: Sorry, this is long. It is as best as I can remember it. It may be somewhat inaccurate.
Yesterday evening, I was on my Windows laptop and logged into my Google account. I *thought* I used the Google Play Store to install Chrome to the tablet. (I had looked at the html5test website and it said Chrome had a higher HTML5 rating than the Dolphin/Jetpack browser I've been using on my tablet.)
But something went terribly wrong.
After sending Chrome to it, I unlocked the tablet and used both Chrome and Dolphin to go to html5test website. They both scored the same or nearly the same. I don't know if any of that is relevant, but I'm including it just in case.
At some point after that, I woke the tablet with the power key and used my unlock pattern on the dots lock screen.
That's when I saw what I believe was mal-ware in action. The settings menus were scrolling and sub-menus being selected, all by themselves. I couldn't say exactly what was changed because whatever program or script that was running the process was going extremely fast.
When I realized it might be trying to send out data over my Wifi network, I turned off the Wifi router in my home.
I repeatedly held down the power key to turn the system off, but doing so only rebooted back to the useless lock screen which was not responding to anything. The normal method of holding the power button for a few seconds to bring up the menu and then tapping the "Power Off" option on that menu refused to power off the system. Nothing on that menu responded to touch.
Entering my pattern on the lock screen did absolutely nothing. I didn't even see any lines traced when I ran my finger over the screen.
At some point, I pulled out the external SD card. I have no idea if whatever hacked the tablet also put a copy of itself on the SD card.
I called a friend who looked up how to restore the tablet to factory settings. I didn't understand the directions exactly, so I ended up on a screen with a Warning!! about installing a Custom OS. (Holding down the Power + Volume Up seems to get me there)
I left it on this screen, and I turned my router back on and using my laptop, contacted Live Chat at Samsung but they didn't understand my problem. They told me to reboot the device and swipe my pattern several times and then after several failed attempts I would have the chance to use my Google credentials to get into it. But the device apparently never registered that my swipe attempts were failing.
So my device was booted up with me locked out, with the WiFi router on for a little while again. I turned off the router as soon as I realized that. That disconnected the chat session, but since Samsung chat wasn't helping me anyway, I didn't bother trying to go back.
I got the device back to the "Warning!!" screen. Then turned the router back on and searched for how to do a factory reset of the device. I found a video on YouTube and followed it.
I pressed the Volume Down and Power buttons simultaneously, followed by letting go of the power button. That brought up a menu which contained several options, including an option to do a factory reset. I used the volume buttons to highlight that and pressed Power key. A second screen came up and I used the volume buttons and power button to select "Yes" to confirm the reset.
It appeared to have done a factory reset, rebooting eventually.
However, after that, when I tried to tap on the touch screen to move forward through the selections, the touch screen was still unresponsive!
So I brought back the "Warning!!" screen and ran the battery down until the screen was blank and it wouldn't start when I held the power key.
Then I charged it for about 20 minutes and rebooted it. I think when it came back it was on the Recovery menu. I think I did a second factory reset, but not 100% sure. It eventually rebooted after a lot longer than usual.
When it came up, it was saying battery was low. I tried to tap the OK button, but nothing happened. Behind the battery window was the first setting screen to set up the device for the first time after a factory reset. (I think selecting USA?)
I brought back the "Warning!!" screen and left it on overnight so that the battery would run down.
That was about 8 hours ago. When I woke up, I used clear tape to keep the power button pressed down, to ensure that the battery will continue to run down.
____________________________________________
What do I do next? How do I get the touch screen to start working again? It is not a hardware problem, unless mal-ware can break the hardware. The touchscreen had been working fine until this happened.
Should I take the tablet back to Best Buy where I bought it at least a year (maybe 2 years) ago? I don't know if it's still under warranty.
I have over 20 year of experience as a software developer, but not for Android. I am not very experienced with doing anything to hardware.
Should I try to fix it myself?
I have never rooted any Android device and I'm not sure what that means, either.
I've never re-installed the ______ ? (rom? image? Odin?)
I read on this and/or other forums that there's a way to replace something, but the instructions were beyond my level of understanding. I would need the procedures to be broken down into steps which don't assume too much about what I know.
I understand how to download a file to Windows, given a URL for it. I understand what a zip file is and how to extract it. I understand how to press hardware buttons and plug in cables, and do these steps in the order I'm told.
I don't understand what I'd use to get the downloaded whatever-they-are onto the tablet to replace whatever-the-other-thing-is so that the touchscreen works again.
As far as I know, Odin is a Norse god.
The only firmware updates I've ever done are the ones that the device does on it's own through Samsung's updates.
I'd deeply appreciate getting this device back since I have extremely limited funds and probably won't be able to buy a replacement.
Thank you,
Linda
LMurphy said:
Samsung Galaxy Tab 2 10.1 Hacked, Touchscreen unresponsive
Hi! I need help with my tablet.
Device: Samsung Galaxy Tab 2 10.1 Tablet, model GT-P5113 TS. This model doesn't have a way to yank out the battery.
What's wrong: Touchscreen is not responding.
Current state: Attempting to drain the battery. Doesn't appear to be turned on. Factory reset apparently performed.
What happened: Sorry, this is long. It is as best as I can remember it. It may be somewhat inaccurate.
Yesterday evening, I was on my Windows laptop and logged into my Google account. I *thought* I used the Google Play Store to install Chrome to the tablet. (I had looked at the html5test website and it said Chrome had a higher HTML5 rating than the Dolphin/Jetpack browser I've been using on my tablet.)
But something went terribly wrong.
After sending Chrome to it, I unlocked the tablet and used both Chrome and Dolphin to go to html5test website. They both scored the same or nearly the same. I don't know if any of that is relevant, but I'm including it just in case.
At some point after that, I woke the tablet with the power key and used my unlock pattern on the dots lock screen.
That's when I saw what I believe was mal-ware in action. The settings menus were scrolling and sub-menus being selected, all by themselves. I couldn't say exactly what was changed because whatever program or script that was running the process was going extremely fast.
When I realized it might be trying to send out data over my Wifi network, I turned off the Wifi router in my home.
I repeatedly held down the power key to turn the system off, but doing so only rebooted back to the useless lock screen which was not responding to anything. The normal method of holding the power button for a few seconds to bring up the menu and then tapping the "Power Off" option on that menu refused to power off the system. Nothing on that menu responded to touch.
Entering my pattern on the lock screen did absolutely nothing. I didn't even see any lines traced when I ran my finger over the screen.
At some point, I pulled out the external SD card. I have no idea if whatever hacked the tablet also put a copy of itself on the SD card.
I called a friend who looked up how to restore the tablet to factory settings. I didn't understand the directions exactly, so I ended up on a screen with a Warning!! about installing a Custom OS. (Holding down the Power + Volume Up seems to get me there)
I left it on this screen, and I turned my router back on and using my laptop, contacted Live Chat at Samsung but they didn't understand my problem. They told me to reboot the device and swipe my pattern several times and then after several failed attempts I would have the chance to use my Google credentials to get into it. But the device apparently never registered that my swipe attempts were failing.
So my device was booted up with me locked out, with the WiFi router on for a little while again. I turned off the router as soon as I realized that. That disconnected the chat session, but since Samsung chat wasn't helping me anyway, I didn't bother trying to go back.
I got the device back to the "Warning!!" screen. Then turned the router back on and searched for how to do a factory reset of the device. I found a video on YouTube and followed it.
I pressed the Volume Down and Power buttons simultaneously, followed by letting go of the power button. That brought up a menu which contained several options, including an option to do a factory reset. I used the volume buttons to highlight that and pressed Power key. A second screen came up and I used the volume buttons and power button to select "Yes" to confirm the reset.
It appeared to have done a factory reset, rebooting eventually.
However, after that, when I tried to tap on the touch screen to move forward through the selections, the touch screen was still unresponsive!
So I brought back the "Warning!!" screen and ran the battery down until the screen was blank and it wouldn't start when I held the power key.
Then I charged it for about 20 minutes and rebooted it. I think when it came back it was on the Recovery menu. I think I did a second factory reset, but not 100% sure. It eventually rebooted after a lot longer than usual.
When it came up, it was saying battery was low. I tried to tap the OK button, but nothing happened. Behind the battery window was the first setting screen to set up the device for the first time after a factory reset. (I think selecting USA?)
I brought back the "Warning!!" screen and left it on overnight so that the battery would run down.
That was about 8 hours ago. When I woke up, I used clear tape to keep the power button pressed down, to ensure that the battery will continue to run down.
____________________________________________
What do I do next? How do I get the touch screen to start working again? It is not a hardware problem, unless mal-ware can break the hardware. The touchscreen had been working fine until this happened.
Should I take the tablet back to Best Buy where I bought it at least a year (maybe 2 years) ago? I don't know if it's still under warranty.
I have over 20 year of experience as a software developer, but not for Android. I am not very experienced with doing anything to hardware.
Should I try to fix it myself?
I have never rooted any Android device and I'm not sure what that means, either.
I've never re-installed the ______ ? (rom? image? Odin?)
I read on this and/or other forums that there's a way to replace something, but the instructions were beyond my level of understanding. I would need the procedures to be broken down into steps which don't assume too much about what I know.
I understand how to download a file to Windows, given a URL for it. I understand what a zip file is and how to extract it. I understand how to press hardware buttons and plug in cables, and do these steps in the order I'm told.
I don't understand what I'd use to get the downloaded whatever-they-are onto the tablet to replace whatever-the-other-thing-is so that the touchscreen works again.
As far as I know, Odin is a Norse god.
The only firmware updates I've ever done are the ones that the device does on it's own through Samsung's updates.
I'd deeply appreciate getting this device back since I have extremely limited funds and probably won't be able to buy a replacement.
Thank you,
Linda
Click to expand...
Click to collapse
Definitely sounds like malware. You have two choices that I see, either root and custom rom or flash back to stock. Since you are stock you'd just be overwriting your existing install. Read this thread and decide your course of action http://forum.xda-developers.com/showthread.php?t=2203309

[Q] Galaxy S6 won't boot. Black Screen, Blue Pulsing LED

Ok. So 14 days ago my wife and I both got S6's for Verizon from a local big box store. (yes, 14. Today is the last day I have to take it back.)
We took the OTA to OE2 and I was able to root both phones with PingPong. Everything was fine until yesterday. Her phone wasn't responding when a call was coming in, so she restarted it by holding in the power button. Now, when it boots up it goes to a black screen after showing the initial "Samsung Galaxy S6" screen. Nothing changes. There is a teal/blue pulsing LED that doesn't go away.
I can enter the recovery and wipe cache, factory reset, safemode, etc. I've tried all of those many times. I can enter download mode and use Odin 3.10.6 to reflash OE2 and it says "Pass". After rebooting, it goes to the "Android is upgrading" dialog and goes through and updates about 248 apps, and then changes to read "Starting apps." It won't go past that screen. I left it on that from 10pm last night until 6am this morning with no change. The battery eventually went dead (from 100%). I've tried Odin many times, and it passes every time.
What are my options? When booting, the padlock is unlocked and says "Custom". I'd really like to get rid of that so I can return it to today without problems. When in Download mode, the system status says "custom".
Please help!!
I've also tried using SmartSwitch on the PC, and it doesn't detect the phone.
Update: I'm trying an Emergency Recovery with Smart Switch. It's at 52% right now. I got a serial number from another S6 so it would allow the download/recovery process to start. It's kind of ridiculous you can't get the serial number for your device from anywhere but the settings page on the phone. (Note: not the IMEI, the actual SN). It's not on the box or back of the phone.
Ok, another update. Emergency Recovery didn't work. It finished, and said that it was successful, but didn't fix the issue.
I took the phone back to the place of purchase and they tried about everything that I had already tried. They ended up just replacing the phone. They said that they never saw this issue before.
I have almost an identical issue except I have not roOted or installed any custom ROMs everything is stock . The fingerprint scanner quit working today and said it required a restart, when I restarted the phone I'm experiencing exactly what you are a black screen and a blue pulsing light. In the stock recovery screen I've tried booting to safe mode USB debugging everything except the factory restore yet I think that is my last resort.

How to restore into operation LG G2 D800 phone that says "Fastboot mode started"?

How to restore into operation LG G2 D800 phone that says "Fastboot mode started"?
Current problem: phone is not operational (does not boot properly).
What I see:
Boot Screen 1:
Phone appears to boot as normal, makes the start-up sound, then it shows a white message box on a gray-screen background. The message box says "Unfortunately, Settings has stopped."
It gives me an option to click "OK".
Clicking OK, message box disappears, screen momentarily flashes an all-white background, (which sometimes changes into black and sometimes not), and then it goes back to the message box.
Boot Screen 2:
"[xxxx] Fastboot mode started" on a blank screen,
where xxxx is a number. 6180 one time, 9790 another during 2 individual boots.
Then the phone just sits there doing nothing seemingly indefinitely.
I am not sure yet how I bring those two different boot modes up but via pressing Power and / or Power and Down buttons in some fashion.
How do I fix this? Is my device bricked?
How I got to that screen
I was using a web browser or some other app on the phone when I have received a text message. I clicked on it inside text box to reply. But changed my mind, and clicked back on the background app. Suddenly the phone shut off unexpectedly. I thought it was related to phone drawing suddenly high battery power, not receiving it and shutting off as sometimes happens on very low battery power level 2-4%. However, my battery was charged over 40% so that was most likely not the cause.
Possibly relevant history (anything that could be contributed to the above):
phone worked okay for a while (since purchase)
~1 year in I tried rooting phone with towelroot/other options unsuccessfully. Gave up. Was never able to root the device. Lived with is as is for a while.
~2 years since purchase, somehow Bluetooth option started failing to turn on. Trying to fix that via doing a Factory Reset did not help. So I lived with BT being non-operational
A week ago I swapped SIM card with my buddy for a week, then swapped it back. Phone kept working as normal.
Today I charged the phone perhaps not using the best power source - it is possible I may have damaged phone using a questionable quality charger. Possibly. This could be the issue. However the phone seemingly worked fine after that for 2-3 hours.
Since my unexpected Shut-Off (most recent), I tried rebooting the phone, but that does not work as expected. First time it got stuck on LG screen forever. Kept pressing Power button, or Power & Down buttons to try to make it come alive. Other two times it brings up a message with "[xxxx] Fastboot mode started" on a blank screen and then it just sits there doing nothing.
Another boot, the process went further, past LG G2 logo, into white screen, and then it brought up a message "Unfortunately, Settings has stopped.", I clicked okay. It looped back to bringing up the message. I clicked Okay over 10 times, it was stuck in a loop.

Please Help! Stuck at boot screen...

Hello. Sorry in advance if this is the wrong thread. I own a pretty old 1 year old tablet that currently has a problem.
Important info: Android 5, No access to a computer for 2 weeks (vacation), slightly cracked screen (still works), I had to install a Play Store apk as the one I had previously was corrupt. Tablet was functioning fine until the moment of the incident (except for the play store apk, which I later fixed).
Minor detail: Once the screen turns on after a restart the pixels near the top of the screen seem to turn purple for a second when I tilt the tablet.
Here is the story:
I was watching a YouTube video and suddenly my tablet froze. I thought: "Uhh, another freeze how annoying," and waited for it to load. I did not unfreeze. I thought: "Well, I guess I'll be fine if I turn my tablet off and on. This is where I got worried. My Power key was not responding. I tried the volume keys. Nothing. I tried connecting a mouse and moving it around. Still nothing. I thought "Ok, lets try restarting it" I did that by holding the Power key down for 10 seconds. To my relief, it turned off. But when it was turning back on again, it was at the loading screen for a little to long. It usually takes 5 seconds to get past the loading screen and enter the boot screen. I decided to wait. 1 minute: nothing. 5 minutes: nothing. I got worried. I tried restarting the tablet again. I restarted successfully but was stuck at the loading screen again. The was no movement on the screen. Only the loading screen. I decided to try the restart backup button which I could activate by putting a pin in a small hole at the back. It had the same effect holding down the power key had. I decided to ue my backup plan: recovery mode. I successfully entered recovery mode. I chose the option "clear cache" and tried to boot again. No changes. I did a scan for any root errors. it said that there were 5 errors, but there was nothing I could do about that. I tried doing a factory reset, then booting up. The reset was successful, but I got the same effect as always. No changes. I gave up and tried to google a solution on my phone. Most of them told me to install a PC program, but one told me to do the same thing I already did: reset, restart. So I decided to let the tablet sit with the boot screen for 2 hours. When I came back, there was no change at all. I tried searching again for a solution. A YouTube video said that the boot time after factory resets may be long, so I decided to reset and let it sit for a bit. 20 mins later, no changes at all. Finally, I gave up and now try to ask for help here.
Norqw said:
Hello. Sorry in advance if this is the wrong thread. I own a pretty old 1 year old tablet that currently has a problem.
Important info: Android 5, No access to a computer for 2 weeks (vacation), slightly cracked screen (still works), I had to install a Play Store apk as the one I had previously was corrupt. Tablet was functioning fine until the moment of the incident (except for the play store apk, which I later fixed).
Minor detail: Once the screen turns on after a restart the pixels near the top of the screen seem to turn purple for a second when I tilt the tablet.
Here is the story:
I was watching a YouTube video and suddenly my tablet froze. I thought: "Uhh, another freeze how annoying," and waited for it to load. I did not unfreeze. I thought: "Well, I guess I'll be fine if I turn my tablet off and on. This is where I got worried. My Power key was not responding. I tried the volume keys. Nothing. I tried connecting a mouse and moving it around. Still nothing. I thought "Ok, lets try restarting it" I did that by holding the Power key down for 10 seconds. To my relief, it turned off. But when it was turning back on again, it was at the loading screen for a little to long. It usually takes 5 seconds to get past the loading screen and enter the boot screen. I decided to wait. 1 minute: nothing. 5 minutes: nothing. I got worried. I tried restarting the tablet again. I restarted successfully but was stuck at the loading screen again. The was no movement on the screen. Only the loading screen. I decided to try the restart backup button which I could activate by putting a pin in a small hole at the back. It had the same effect holding down the power key had. I decided to ue my backup plan: recovery mode. I successfully entered recovery mode. I chose the option "clear cache" and tried to boot again. No changes. I did a scan for any root errors. it said that there were 5 errors, but there was nothing I could do about that. I tried doing a factory reset, then booting up. The reset was successful, but I got the same effect as always. No changes. I gave up and tried to google a solution on my phone. Most of them told me to install a PC program, but one told me to do the same thing I already did: reset, restart. So I decided to let the tablet sit with the boot screen for 2 hours. When I came back, there was no change at all. I tried searching again for a solution. A YouTube video said that the boot time after factory resets may be long, so I decided to reset and let it sit for a bit. 20 mins later, no changes at all. Finally, I gave up and now try to ask for help here.
Click to expand...
Click to collapse
Was your device rooted? Did you have TWRP custom recovery installed? If you don't have either of these two things then your only option is to flash the stock firmware via PC.
Do a google for:
"Return to stock (your model number)"
If what you need is out there somewhere, that woll find the instructions, the tools and the file(s) you need.
Sent from my LGL84VL using Tapatalk

[HELP] Phone recognises touches but screen unresponsive (Works in safe mode)

Moto X Style not rooted
I have show touches on so I can see that the screen recognises the input but the phone won't correspond with what I'm telling it to do. Even when using a mouse via USB debugging.
Every time upon restart, it works properly for a minute or so, then the navbar & statusbar dissapear, screen fades to black and locks. When I press the power button, it shows the lock screen but won't let me press anything. Apart from the Power Off pop up when it appears. I also can still interact with the always on display.
If I boot it in safe mode, the issue doesn't occur and I can interact the screen indefinitely.
I've not installed any new apps recently but this just started happening about a day ago.
Any ideas of what's wrong/how to fix it?
questionmeister said:
Moto X Style not rooted
I have show touches on so I can see that the screen recognises the input but the phone won't correspond with what I'm telling it to do. Even when using a mouse via USB debugging.
Every time upon restart, it works properly for a minute or so, then the navbar & statusbar dissapear, screen fades to black and locks. When I press the power button, it shows the lock screen but won't let me press anything. Apart from the Power Off pop up when it appears. I also can still interact with the always on display.
If I boot it in safe mode, the issue doesn't occur and I can interact the screen indefinitely.
I've not installed any new apps recently but this just started happening about a day ago.
Any ideas of what's wrong/how to fix it?
Click to expand...
Click to collapse
If it works in safe mode but doesn't when booted normally, then your issue is caused by something that you installed yourself. Use trial and error to figure out which of your installed apps is causing the issue by uninstalling apps and seeing if this issue still happens, when you uninstall the offending app, it should start working like it is supposed to.
Sent from my LGL84VL using Tapatalk

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