Alright. I've not used this device for a while but now I'm trying to fix it. So far :
1. Device goes on a constant bootloop.
2. I can boot the device if I hold onto the power key. If I let go, it just turns off immediately
3. Can't select anything in bootloader since if I let go of power key (which is to select) it just turns off
4. Tried factory resetting, it's now reset but problem persists
5. When in Download mode, it seems to be able to keep itself on however Odin doesn't seem to detect it. (Windows chimes that a new device is connected (sound only); no warning that device is "malfunctioning", doesn't show up in device manager)
6. Banging the side with the power button also didnt work lol
Extra:
If I put tape on the power button it is able to run perfectly fine. Any ideas?
I'm honestly guessing its a sticky power button. Battery problem is probably not the cause since it's able to hold up normally in Download mode.
Any help is appreciated, really damn confusing. I've never seen a post as such, so if I get this resolved hopefully others can repair theirs aswell.
Bump
Same issue
Exactly the same issue here.
I've even replaced the battery, didn't help.
Did you repair it somehow?
Related
As I understand from this thread;
http://forum.xda-developers.com/showthread.php?t=2118259&page=8
you can't get out of APX mode. Well, I did. Maybe my phone wasn't in proper APX mode, or maybe I'm confused as to what APX mode is, anyway I thought I'd share in case it can help anyone.......
Here is my original problem;
http://forum.xda-developers.com/showthread.php?p=51066504
As it says, I replaced the battery and the power flex cable (which I broke during disassembly). When connected to Windows it made the connect sound, and 'USB Device not recognised'. I pressed and held the power button and heard the sound again, nothing else changed. Went into Device Manager, it said APX device.
I searched and read through the above linked thread. Felt gutted.
I decided to run the battery charging script again (originally tried it before opening up the phone). It was running for about 5 min (with no progress) when I thought I'd try pressing and holding the power button again. While I was reading a thread, I kept pressing and holding the power button, and releasing when I heard the windows connect sound, then pressing and holding again. After about 5 times doing this, the phone just booted up normally! Everything was fine, all ok, all my stuff (texts, call logs, apps, media etc..) was all there
After charging it to 100%, I went into recovery (TWRP) to check it was all working ok. I was asked for a password, searched the forums briefly for it, will sort this after I post this thread. It couldn't see the sdcard, or mount, but this is related to the password problem I think.
Now, when I went to reboot, system, it said no OS installed. I rebooted anyway, and when it booted up it was like a fresh rom install. All my apps, texts etc... were gone, but my media was all still there.
Soooo, I'm pretty chuffed my phone is back! Does anyone know why my phone was reset just by going into recovery?
And i have read that you are back in apx. It's a shame we have to repeat it over and over. APX is a hardware failure which can't be 100% fixed. As you see now it kicks back in, the phone will never be reliable again.
Sorry mate.....wish it would be different for you ......
Cheers.
Hey everyone,
I've got my phone startet now, but I still do need a kind of "backdoor", so I can restart the phone, if the button stops working again or if I loose this small plastic-piece again.
Furthermore it would be really cool if I would not have to dismantle the phone to turn it on
First of all I thought about ADB, but ADB doesn't recognize my device anymore.
I don't know why. My USB-Debugging is (and was) activated, but the PC isn't authorized yet (since it doesn't recognize the ADB it won't ask me for permission).
How can I fix this? I already tried to restart (pc and device), reinstall the drivers and kill/start the sever. Nothing worked.
But I'm also open for new ways.
I thought of some possibilities:
1. Change the "action_on_power_plug_connect": Is there a way to change the action my phone does execute when the power plug is connecting? Right now it's just starting to charge mode.
2. Boot on shedule/remote: Is there any app, which got the power to boot the phone, even if it is completely shut down?
I'm thankful for every single advice you can give me here.
Sincerly,
maj0r_tom
~~~~~~~~~
DEVICE INFO:
~~~~~~~~~
System: ColorOS 2.5.1i (Android Lollipop)
Root: Yes, SuperSU
Recovery: Stock Recovery
Hardware buttons working: None :]
---------------------
OLD POST:
---------------------
Hello everyone,
I've just repaired the broken display of my old Oppo Find 7.
Everything worked fine but one thing: The power button does not respond anymore.
It's a small piece of plastic, held in place by a bridge of metal.
When I press it onto the "sensor", it doesn't seem to recognize it.
Everything else is working perfectly - connecting a power source makes the phone start into loading mode.
Is there any way to start the phone without the physical button?
Maybe something beyond fastboot?
Or do you think that any phone-repair shop could help me there?
Sincerly,
maj0r_tom
Edit: The Volume Buttons do not work, too.
I've tried ADB. I could swear, that USB debugging is enabled (used Titanium Backup, it's asking for it on startup).
But ADB does tell me, that the phone is unauthorized.
Edit 2: Volume buttons repaired.
Edit 3: I got it.
The buttons didn't break - they just lost a small piece - a very ****ing small piece.
I did see it dropping from my Vol+ button and could insert it into the power button.
The phone startet, Debugging was enabled. Do I have to check anything else to activate ADB?
Hello, i don't know if my problem is the same but i have the power button don't work too. For restart my phone, i press VOL- when I charged the phone. He boot in recovery and next i reboot system. If a hardware solution is possible, tell me.
maj0r_tom said:
Hey everyone,
I've got my phone startet now, but I still do need a kind of "backdoor", so I can restart the phone, if the button stops working again or if I loose this small plastic-piece again.
Furthermore it would be really cool if I would not have to dismantle the phone to turn it on
First of all I thought about ADB, but ADB doesn't recognize my device anymore.
I don't know why. My USB-Debugging is (and was) activated, but the PC isn't authorized yet (since it doesn't recognize the ADB it won't ask me for permission).
How can I fix this? I already tried to restart (pc and device), reinstall the drivers and kill/start the sever. Nothing worked.
But I'm also open for new ways.
I thought of some possibilities:
1. Change the "action_on_power_plug_connect": Is there a way to change the action my phone does execute when the power plug is connecting? Right now it's just starting to charge mode.
2. Boot on shedule/remote: Is there any app, which got the power to boot the phone, even if it is completely shut down?
I'm thankful for every single advice you can give me here.
Sincerly,
maj0r_tom
~~~~~~~~~
DEVICE INFO:
~~~~~~~~~
System: ColorOS 2.5.1i (Android Lollipop)
Root: Yes, SuperSU
Recovery: Stock Recovery
Hardware buttons working: None :]
---------------------
OLD POST:
---------------------
Hello everyone,
I've just repaired the broken display of my old Oppo Find 7.
Everything worked fine but one thing: The power button does not respond anymore.
It's a small piece of plastic, held in place by a bridge of metal.
When I press it onto the "sensor", it doesn't seem to recognize it.
Everything else is working perfectly - connecting a power source makes the phone start into loading mode.
Is there any way to start the phone without the physical button?
Maybe something beyond fastboot?
Or do you think that any phone-repair shop could help me there?
Sincerly,
maj0r_tom
Edit: The Volume Buttons do not work, too.
I've tried ADB. I could swear, that USB debugging is enabled (used Titanium Backup, it's asking for it on startup).
But ADB does tell me, that the phone is unauthorized.
Edit 2: Volume buttons repaired.
Edit 3: I got it.
The buttons didn't break - they just lost a small piece - a very ****ing small piece.
I did see it dropping from my Vol+ button and could insert it into the power button.
The phone startet, Debugging was enabled. Do I have to check anything else to activate ADB?
Click to expand...
Click to collapse
Hi, I think that an alarm application in ColorOS was able to start the phone if you had alarm setup.
But I'm sure this only applies to the ColorOS native alarm application, so no third party apps....
tw9 said:
Hi, I think that an alarm application in ColorOS was able to start the phone if you had alarm setup.
But I'm sure this only applies to the ColorOS native alarm application, so no third party apps....
Click to expand...
Click to collapse
I have had same problem. I am not expert at all but can suggest you to check out your phone mother board. Problem might be there. Nothing will work if your phone motherboard is out of function. Thanks
Good morning,
When I start my tablet, I remain stuck on the LG logo ...
I can't connect my Pc with lg pc suite or Lg mobile support tool or flashtool.....
Can you help me please ?
Thanks
Edit 07/05 : i got the message on boot ; Secure booting error! Cause : boot certification verify
Eric
I just went thru this with my a G Pad 8.0, had quite a few hangups but I ended up figuring it out. Some suggestions from what I learned... :
- Fully charge up your tablet. Mine was charging extremely slow, so I left it plugged in overnight and that finally ended up doing the trick.
- Make sure you have the correct driver installed. If you go to LG's website and find their downloads section, you can search for your device and download its driver. I'm pretty sure their tablet driver isn't device specific, but so if you have any difficulty finding this, let me know and I can post the one that worked for me. After you download the file, don't forget to open and install it. While you're there, you can I'd just go ahead and re-download and reinstall their mobile support tool, just to make sure you've got the most current update. After it installs, open the program; I don't know if you have to, please let but I'd have it open and waiting before you do these next steps.
- Completely power off your device. Unplug it from the wall and turn it off. I found that if I just held down the power button until the screen went dark, my tablet 3would restart itself a few seconds later. But when I kept holding down the power bites dxton thru the reset, it would turn off a 2nd time and actually stay off (about 15sec or so).
- In order to run LG's support tool, you'll wanna boot into download mode. You can search for your device online and it should explain how to do this, I found a couple conflicting methods but I believe the one that worked for me was just by holding the volume up key and then plugging it in to your PC with a USB. If that doesn't work, try pressing the volume up and power keys together then plugging it in, or try pressing both of the volume keys. One of those 3 should have you entering download mode. It will take a few seconds after you attach the cord for you to boot up; keep holding down the keys you pressed until you see the download mode screen. When plugging it in, but I it might be easier to keep holding down the buttons if you start with the cord plugged into your powered off device, and and then plug the other end into your PC while you are doing the boot process. It shouldn't matter which end you connect last, and I found this method to be way less awkward.
- The LG mobile support tool should automatically recognize your device and automatically start the update, and but you might need to select your device yourself, or at least the service provider, in order to update correctly. Just DON'T unplug your tablet thru the entire process. I think the whole thing took me about 15 minutes, depends on your Internet speed really.
- if you've managed to successfully run the update and you're still stuck in a boot loop, you're gonna have to reset your device. Again, you can Google how to do this, but I think most LG's perform a hard reset by making sure the phone is turned off, then press and hold the power and volume down keys. When the LG logo appears, release the power key for a second while still holding down the volume key, and then press and hold power down again until you see the reset screen. Use your volume and power keys to factory reset your device.
Hopefully, now it is should be able to boot just fine! Let me know if you encounter any problems and I'll see what I can do to help.
Hi, thanks for your help sheebie, i'll try asap .
Regards
Eric
sheebie said:
I just went thru this with my a G Pad 8.0, had quite a few hangups but I ended up figuring it out. Some suggestions from what I learned... :
- Fully charge up your tablet. Mine was charging extremely slow, so I left it plugged in overnight and that finally ended up doing the trick.
- Make sure you have the correct driver installed. If you go to LG's website and find their downloads section, you can search for your device and download its driver. I'm pretty sure their tablet driver isn't device specific, but so if you have any difficulty finding this, let me know and I can post the one that worked for me. After you download the file, don't forget to open and install it. While you're there, you can I'd just go ahead and re-download and reinstall their mobile support tool, just to make sure you've got the most current update. After it installs, open the program; I don't know if you have to, please let but I'd have it open and waiting before you do these next steps.
- Completely power off your device. Unplug it from the wall and turn it off. I found that if I just held down the power button until the screen went dark, my tablet 3would restart itself a few seconds later. But when I kept holding down the power bites dxton thru the reset, it would turn off a 2nd time and actually stay off (about 15sec or so).
- In order to run LG's support tool, you'll wanna boot into download mode. You can search for your device online and it should explain how to do this, I found a couple conflicting methods but I believe the one that worked for me was just by holding the volume up key and then plugging it in to your PC with a USB. If that doesn't work, try pressing the volume up and power keys together then plugging it in, or try pressing both of the volume keys. One of those 3 should have you entering download mode. It will take a few seconds after you attach the cord for you to boot up; keep holding down the keys you pressed until you see the download mode screen. When plugging it in, but I it might be easier to keep holding down the buttons if you start with the cord plugged into your powered off device, and and then plug the other end into your PC while you are doing the boot process. It shouldn't matter which end you connect last, and I found this method to be way less awkward.
- The LG mobile support tool should automatically recognize your device and automatically start the update, and but you might need to select your device yourself, or at least the service provider, in order to update correctly. Just DON'T unplug your tablet thru the entire process. I think the whole thing took me about 15 minutes, depends on your Internet speed really.
- if you've managed to successfully run the update and you're still stuck in a boot loop, you're gonna have to reset your device. Again, you can Google how to do this, but I think most LG's perform a hard reset by making sure the phone is turned off, then press and hold the power and volume down keys. When the LG logo appears, release the power key for a second while still holding down the volume key, and then press and hold power down again until you see the reset screen. Use your volume and power keys to factory reset your device.
Hopefully, now it is should be able to boot just fine! Let me know if you encounter any problems and I'll see what I can do to help.
Click to expand...
Click to collapse
i have just replaced my screen and battery, after having the randomly reboot loop issue (see my previous post), to find out the FLEX power / volume buttons cable had become torn. so i ordered a new cable, and replaced that. Now, only the volume down button works. Help!
I can get into fastboot / download, by holding down power down, and plugging into my laptop (usually this does a hot-start i like to call it), but cannot figure out how to get into TWRP - which i have installed. (TWRP + rooted + ViperOne).
A friend said my ROM is corrupt, but i don't see how that would affect the buttons not working, before it's even booted up into the ROM. So, i do the aforementioned hot-start with volume down held, which gets me to download mode. I then use ADB from laptop to fastboot reboot bootloader to get to the bootloader
How do i get to recovery with no power button functionality? What might be the issue? Software / hardware? it has been opened, cleaned. Before, the power button worked, even amidst the looping reboot issue.
Does anyone know about the "power pad" - the contacts on the motherboard that you can short circuit to boot? I know it's doable but if i short the wrong contacts it can completely fry the phone.
Thanks!
You haven't finished fixing your hardware issue; software is irrelevant--barking up the wrong tree.
Diagnose, don't guess.
You're on the right track; don't let anyone trip you up.
Hello,
my wife got a S21 FE (SM-G990B/DS VD2). Yesterday it started to reboot over and over out of a sudden, showing the samsung logo first, followed by the knox logo, then shutting off and on again. Tried several guides to enter Recovery or Download Mode. The only thing that worked was entering download mode by pressing Vol up, down and power while a USB-Cable is plugged in, but as soon as i press the vol up button to pass the "warning screen", it shows some phone specs for a couple of seconds, shuts off and starts bootlooping again. After some hours, the phone once entered recovery mode when it lied next to me for about an hour. Tried to wipe cache, but just got an error I can't remember right now. Hoped it fixed itself when it made it to recovery and just rebooted to see if it works again, but then it just keept bootlooping again.
Since then I couldn't figure out why it once booted to recovery on it's own nor why I can't force it to enter recovery by pressing vol up + on.
Still hope it's just a faulty update or bug, but feels very much like it's a hardware related issue. Replacing the phone won't be an issue, but I'd really want to save data on the phone as my wife didn't make any backups and really wants to keep the photos.
As I just found guides that included recovery or DL-Mode, which are both no valid options for my case, I'd be thankful for any ideas to fix the phone or at least gain access to files before replacing it.
So.. did anyone come across similar issues and found a solution to revive the phone or are there any "unpopular" ways to recover samsung phones out of this state?
Edit:
Turned off completely overnight, booted once to system, looped again and now it's working like nothing ever happened. Got no clue what caused it or why it is working again. Saved everything for the case it happens again.
Wouldn't trust that device anymore, but my wife wants to keep it.
¯\_(ツ)_/¯
I would just like to reply here and add my own potential fix and also would like confirmation that it would work.
So I have a SM-G996B in a boot loop which returns a 'fs_mgr_mount_all' error. Possible to reboot into recovery mode, cleared cache and restarted bootloader etc with the same boot loop. Powered off and connected to PC for Download mode for ODIN recovery but upon pressing volume up, it then restarts again so Download mode recovery is impossible.
I know however that Developer options and USB debugging was enabled on the device as well as unlocked boot loader. I was able to download the correct original stock OS based on the PDA , CSC and Android version.
I have then installed the latest ADB software on my PC and Samsung USB drivers.
By then rebooting into recovery mode, I have the option of 'Apply update from ADB'. I have then confirmed the device connects using the ADB devices command.
I would like to clarify one thing however. I want to keep the user data at all costs. By using the stock firmware and renaming as update.zip, will it use the HOME_CSC and not the CSC file? If not would it work if I open the zip and remove the CSC before re-zipping to make sure?
Thanks
Reebee said:
Hello,
my wife got a S21 FE (SM-G990B/DS VD2). Yesterday it started to reboot over and over out of a sudden, showing the samsung logo first, followed by the knox logo, then shutting off and on again. Tried several guides to enter Recovery or Download Mode. The only thing that worked was entering download mode by pressing Vol up, down and power while a USB-Cable is plugged in, but as soon as i press the vol up button to pass the "warning screen", it shows some phone specs for a couple of seconds, shuts off and starts bootlooping again. After some hours, the phone once entered recovery mode when it lied next to me for about an hour. Tried to wipe cache, but just got an error I can't remember right now. Hoped it fixed itself when it made it to recovery and just rebooted to see if it works again, but then it just keept bootlooping again.
Since then I couldn't figure out why it once booted to recovery on it's own nor why I can't force it to enter recovery by pressing vol up + on.
Still hope it's just a faulty update or bug, but feels very much like it's a hardware related issue. Replacing the phone won't be an issue, but I'd really want to save data on the phone as my wife didn't make any backups and really wants to keep the photos.
As I just found guides that included recovery or DL-Mode, which are both no valid options for my case, I'd be thankful for any ideas to fix the phone or at least gain access to files before replacing it.
So.. did anyone come across similar issues and found a solution to revive the phone or are there any "unpopular" ways to recover samsung phones out of this state?
Edit:
Turned off completely overnight, booted once to system, looped again and now it's working like nothing ever happened. Got no clue what caused it or why it is working again. Saved everything for the case it happens again.
Wouldn't trust that device anymore, but my wife wants to keep it.
¯\_(ツ)_/¯
Click to expand...
Click to collapse
Similar issue with same phone. In a bootloop after trying to root. None of the button combinations have worked for me, for the past several days.
Tried powering the phone off for the whole night.
When connected to the PC shows phone is in recovery mode via adb (blank screen though).
Want to know how to get into DL-mode, guaranteed.
Got to DL mode by pressing vol up + down + power + usb cable connected in PC and phone. However, couldn't do anything there, but maybe you can
Also, phone is still working and I still have no clue what was the problem and what fixed it.