[Q] Samsung Galaxy Exhibit II 4G (SGH-T679) Can't Boot - Samsung Galaxy Exhibit 4G

My Galaxy Exhibit II 4G is about a year old, rooted and i have CM11 installed. Everything was fine, I had it plugged in (charging) and i was downloading an app (Camscanner) from the Mobogenie store when suddenly the phone shut off and the battery icon appeared with the loading circle in the middle.
This did not stay on for long as the screen would go off and this would again appear. After pulling the battery and removing the charger, then reinserting the battery, the phone would just flash the SAMSUNG logo in this very same manner.
I am unable to get into either recovery or download modes and when i try this combination (VOL UP + VOL DWN) i get:
RAMDUMP MODE
Cause: Force Upload
I have been reading forums for hours and i have found nothing. Is my device bricked? What can I do to recover it? Please, any help would be greatly appreciated :crying:

What happens if you try vol. up + power, or vol. down + power?

jfbs said:
What happens if you try vol. up + power, or vol. down + power?
Click to expand...
Click to collapse
Thanks for replying. Nothing happens. It just continues to reboot like I'm not doing anything. The only way I'll get a reaction out of it is with vol up + vol down

It can be tricky. This post may be clear http://forum.xda-developers.com/showpost.php?p=32437850&postcount=6

The link you sent me to sounds similar to my problem, except I wasn't trying to update the firmware. The crash was spontaneous.
However, neither of those methods work. As soon as I put in the battery the SAMSUNG logo appears, then disappears and reappears and it continues like that... Pressing the power button does nothing, whether by itself or with the volume up/down button
I am beginning to panic

What happens when it's connected to power?

Adrian Gobourne said:
...battery icon appeared with the loading circle in the middle.
Click to expand...
Click to collapse
Anyway, after many hours of investigation I discovered it was a hardware problem. The power button was stuck and so it forced it to reboot repeatedly. It also explains why it (the power button) was unresponsive. Disassembling the phone and freeing up the power button solved the problem.
P.s. Your build of CM11 is boss

I have same problem with power button. Had to tweak it hard cause it was so sensitive.

It's the first time it's happened to me. Probably because I dropped it so many times

Strange, ...
Adrian Gobourne said:
My Galaxy Exhibit II 4G is about a year old, rooted and i have CM11 installed. Everything was fine, I had it plugged in (charging) and i was downloading an app (Camscanner) from the Mobogenie store when suddenly the phone shut off and the battery icon appeared with the loading circle in the middle.
This did not stay on for long as the screen would go off and this would again appear. After pulling the battery and removing the charger, then reinserting the battery, the phone would just flash the SAMSUNG logo in this very same manner.
I am unable to get into either recovery or download modes and when i try this combination (VOL UP + VOL DWN) i get:
RAMDUMP MODE
Cause: Force Upload
I also get ram dump mode error when trying to manually boot recovery.
I have been reading forums for hours and i have found nothing. Is my device bricked? What can I do to recover it? Please, any help would be greatly appreciated :crying:
Click to expand...
Click to collapse
OK so I'm no expert or anything but maybe my experience with this Model might be able to help you a little bit. I have the same model and it was doing the exact same thing however I haven't rooted it. And I've since corrected the issue on mind particularly it appeared that it was the charge port and/or USB that either had a bad connection or possibly it was boot looped. However with me not rooting the I didn't understand how it could be booted Looped so I started playing around with holding the power button playin with USB things of this nature and what I found was that if I hold the USB to one side either left or right, this allowed me to help a boot farther into it sequence at first to just show the Samsung logo over and over then I could get it to get to the boot sequence about halfway through the boot animation until I finally got to the exhibit screen where displays its model and 4G status. I accomplish this by holding the USB to one side and pushing and holding the power button intermittently throughout the boot. Once I hit the unlock screen unlock the device and I immediately factory data reset it. I'm under the impression that mine was possibly I think that mine was somehow a corrupted bootloader or software still I don't know what caused it to backed up to this day occasionally it'll shut itself down and reboot on me that's why I'm here today I've got all the parts and pieces I need to flash a new rom and hopefully new software the new work over I'll be good to go I also cleaned the USB port made sure that it was still snug to the board all of the good stuff. I don't know if it'll help you but I had the same situation I thought you'd like to know that it was probably not what you were doing with the phone it may just be the software itself with this particular phone see I done nothing that you didn't had the exact same problems. I hope it was somewhat helpful if you haven't gotten it unlocked or re-booted yet. Then maybe just play around with the power sources and power buttons. And see if you can get the same results I did

Related

Power button is broken? How to reboot to download?

Power everything was working this morning
Noticed that my power button wasn't working...the screen stayed on. Pulled battery, put it back in and the phone booted without pressing power.
Was like "wtf?"
When it booted, I couldn't turn off the screen.
So I just left the battery out and took it home.
Put a new rom on phone, thought "This will fix it."
Wrong.
Had to flash using Rom Manager because in recovery the power button doesn't respond.
When it began to boot "AT&T Screen" wouldn't disappear and show me some Doc's v4.
I can manipulate it to boot into recovery but the power button doesn't work still.
I can NOT get it to go into recovery.
Can someone helps me?
bunnsguy said:
Power everything was working this morning
Noticed that my power button wasn't working...the screen stayed on. Pulled battery, put it back in and the phone booted without pressing power.
Was like "wtf?"
When it booted, I couldn't turn off the screen.
So I just left the battery out and took it home.
Put a new rom on phone, thought "This will fix it."
Wrong.
Had to flash using Rom Manager because in recovery the power button doesn't respond.
When it began to boot "AT&T Screen" wouldn't disappear and show me some Doc's v4.
I can manipulate it to boot into recovery but the power button doesn't work still.
I can NOT get it to go into recovery.
Can someone helps me?
Click to expand...
Click to collapse
have ODIN open, and battery removed from phone... hook up usb, hold both vol keys, while inserting battery... you should get download mode fine even with a busted power button... what you do next is up to u....
Once more, I can NOT get it to boot into recovery in that fashion.
I cannot place batter in the phone without it attempting to boot
(doesn't not get past the AT&T boot screen)
I cannot plug it up, hold volume buttons and then put in battery because it will just charge. If I unplug the phone, the phone still thinks it's charging actually.
My question really is Can I 'fix' the power button, or can I reboot it into download mode through command propt? I've never used ADB to access my phone, so that'll be new.
bunnsguy said:
Once more, I can NOT get it to boot into recovery in that fashion.
I cannot place batter in the phone without it attempting to boot
(doesn't not get past the AT&T boot screen)
I cannot plug it up, hold volume buttons and then put in battery because it will just charge. If I unplug the phone, the phone still thinks it's charging actually.
My question really is Can I 'fix' the power button, or can I reboot it into download mode through command propt? I've never used ADB to access my phone, so that'll be new.
Click to expand...
Click to collapse
Dude... recovery is useless right now, you have a busted power button... and because of 'said busted power button', none of what you're trying to do is going to work... like youve said...
You are down to trying to force download mode with USB cord, holding the vol keys, and inserting the battery... ADB cannot run commands to a phone stuck at the boot screen... Thread title says, how to reboot to download, and with the button like it is, all you can do is what i've posted...
As to fixing the power button, i don't see why that's not possible... do u feel it press at all?
B-Naughty said:
As to fixing the power button, i don't see why that's not possible... do u feel it press at all?
Click to expand...
Click to collapse
Yeah, it 'presses' and 'clicks'. I mean it worked most of the day, it got low on power and it just quit working.
Any luck forcing download by puttin the battery in while the usb is hooked up with the vol keys pressed in?
I was having the same problem with my power button and eventually the power button stopped working completely even though i could still hear it click. I sent it to mobiletechvideos and they fixed it really fast and it was a great price.
Here's the link: http://mobiletechvideos.mybigcommerce.com/samsung-captivate-power-button-repair/
B-Naughty said:
Any luck forcing download by puttin the battery in while the usb is hooked up with the vol keys pressed in?
Click to expand...
Click to collapse
goes into boot-loop like if I were holding the volume up/down and the power together. That's what doesn't make sense.
j.curtis.369 said:
I was having the same problem with my power button and eventually the power button stopped working completely even though i could still hear it click. I sent it to mobiletechvideos and they fixed it really fast and it was a great price.
Here's the link: http://mobiletechvideos.mybigcommerce.com/samsung-captivate-power-button-repair/
Click to expand...
Click to collapse
And I could buy another used Captivate for $50. I have an upgrade in less than 3 weeks and this happens
It happened to me once before after flashing a bad kernel. I just did what B-Naughty had suggested. Remove battery -> plug in USB -> hold both volume buttons --> then insert battery. Put me right in download mode and Odin it back with a working power button. Unless it's really a hardware problem, then you're out of luck...
bunnsguy said:
And I could buy another used Captivate for $50. I have an upgrade in less than 3 weeks and this happens
Click to expand...
Click to collapse
Oh in that case imo i would get another used captivate and wait for the sgs 3
Maybe if I went to a store and sucked up to them they'd let me upgrade a month early (especially since I was initially supposed to upgrade in October)
Might be down to getting/making a USB jig if it don't come up... but if you upgrade to gs2, the jig will work for that model as well so won't be wasted...
B-Naughty said:
Might be down to getting/making a USB jig if it don't come up... but if you upgrade to gs2, the jig will work for that model as well so won't be wasted...
Click to expand...
Click to collapse
Maybe a jig would work. But easier, funner solution is adding a line for a Moto Atrix 1 for just a penny plus the $36 fee. Problem solved. Thanks for the help for what could just be a hardware failure. I'll upgrade my other line later when the SGS 3 comes out

[Q] Sprint HTC ONE stuck on white boot screen

Hello,
I've just installed this ROM after wiping Cache/Delvik Cache and system wipe.
Now the phone is stuck on the boot screen and I can not get back into recovery to sort it out.
I held down power & vol+ buttons to get into recovery but nothing happens. The Home & Back buttons flash after 3 seconds then nothing happens.
Any thing else I should do to get into recovery ( TWRP)
My friend whop is a member asked this question on the Developers forum and so far no luck.
we have tried the following:
This is suggested by chogardjr: Plug your phone in to charge. Don't use a USB port for power. After you plug it in try the hard reboot again.
PLEASE HELP
Just for the sake of testing... Have him hold power without holding the volume. It should force reboot, not to the bootloader, so he can get a feel for how the reboot works. It can be finicky during a bootloop cause there are processes trying to run in the background. But it should do it if you hold power long enough.
Edit:
Also find out if the charge light comes on when he plus it in.
Tried and no joy.......
rking786 said:
Hello,
I've just installed this ROM after wiping Cache/Delvik Cache and system wipe.
Now the phone is stuck on the boot screen and I can not get back into recovery to sort it out.
I held down power & vol+ buttons to get into recovery but nothing happens. The Home & Back buttons flash after 3 seconds then nothing happens.
Any thing else I should do to get into recovery ( TWRP)
My friend whop is a member asked this question on the Developers forum and so far no luck.
we have tried the following:
This is suggested by chogardjr: Plug your phone in to charge. Don't use a USB port for power. After you plug it in try the hard reboot again.
PLEASE HELP
Just for the sake of testing... Have him hold power without holding the volume. It should force reboot, not to the bootloader, so he can get a feel for how the reboot works. It can be finicky during a bootloop cause there are processes trying to run in the background. But it should do it if you hold power long enough.
Edit:
Also find out if the charge light comes on when he plus it in.
Tried and no joy.......
Click to expand...
Click to collapse
I had a similar problem with a bad kernel flash and could not get the device to shut all the way off - thats why the keys are blinking. I plugged it in to a charger, left it like that for a few seconds, then unplugged, held it under a bright light and waited. After a few more seconds, it shut all the way down and I was able to boot to recovery in the usual way (power+down). You may have to try combinations or maybe not. But, you won't get to recovery until the phone shuts all the way down. High light under in the 'eyes', plugging and unplugging, and holding the power button for up to 30 seconds are all known ways to do this, but as was said before a bootloop has processes trying to run, so the machine can be 'confused' and have difficulty shutting down. Hope you are successful...
Thanks. I actually got it going with one of the answers posted for me, by powering it off under a bright light.
Sounds daft, but it works.

[Q] Boot Loop Help Please

I have attempted to install Cyanongenmod 10 and Gapps using CWM on my phone and it appeared to have worked correctly. I was in the process of getting my apps setup when the phone restarted and has gone into a persistent boot loop. It has probably rebooted well over 1000 times now.
On most loops it shows the white Samsung logo and then reboots again after about three seconds.
If plug it into USB, it shows the charging battery icon, then the full Samsung Exhibit 4G logo (for a split second) and then reboots.
If I remove the battery and then reinsert it, the phone powers on and goes into a boot loop without me even touching the power button.
I have attempted getting into recovery using both the battery removal + volume up key and using the power button and volume up key methods. Neither work. (Actually it worked once out of about hundred attempts but then immediately rebooted before I could do anything)
I was concerned that it might be a hardware problem with the power button, but I have inspected this closely by opening up the phone as as far as I can tell it is fine.
Any ideas for next steps (including getting a new phone) would be appreciated.
Additional Information
I should add also that I can get into Download mode, but again the phone reboots within seconds before I have any opportunity to do anything
Look here. http://forum.xda-developers.com/showthread.php?p=48658330
Sent from my SGH-T679 using xda app-developers app
Thanks Dvarl.
I had, in fact, seen the thread that you referenced and tried what was suggested. The symptoms certainly sound identical. However, I found that even with the case removed so that no pressure could be applied on the power button, the symptoms persist. So the trick with the tweezers and file is not going to help my situation.
Any other ideas?
ilopata1 said:
Thanks Dvarl.
I had, in fact, seen the thread that you referenced and tried what was suggested. The symptoms certainly sound identical. However, I found that even with the case removed so that no pressure could be applied on the power button, the symptoms persist. So the trick with the tweezers and file is not going to help my situation.
Any other ideas?
Click to expand...
Click to collapse
It definitely seems like the power button. Something is triggering it, even though there is no pressure on it. Otherwise, it would not reboot when you are in recovery, or every three seconds.

[SM-T510/T515] 2019 Galaxy Tab A 10.1 Hard Resets

Here's a quick reference for how to reboot and reset your 2019 Galaxy Tab A 10.1 (SM-T510/T515) using the hardware buttons:
Force restart:
- If your device is frozen and unresponsive, press and hold the Volume Down + Power keys simultaneously for more than 7 seconds to restart it.
Boot to Recovery Mode:
- Power off the device
- Press and hold the Volume Up + Power keys at the same time.
- Release both keys when you see Recovery Mode.
Boot to Download Mode:
- Disconnect the USB cable
- Power off the device
- Press and hold the Volume Down + Volume Up keys
- Insert the USB cable
Boot to Safe Mode:
- Power off the device
- Press and hold the Power key.
- When the boot logo appears, release the Power key and then press and hold the Volume Down key.
- Continue to hold the Volume Down key until the device finishes restarting.
- Safe Mode will display in the bottom left corner of the screen.
Since there is no Bixby button, these combinations are different than the Galaxy S10. If you know of additional combinations, please contribute to the discussion below and I'll consolidate here.
If there’s no response on your device or you're stuck in a boot loop, then you might need to wait for the battery to drain. The 2019 Galaxy Tab A 10.1 has a non-removable battery pack, so disconnecting that isn't an option. Hopefully, the system reverts to its normal function with a cold boot. This can take time if the battery has high charge left at time of failure. Depending on how fast your battery drains, this can mean waiting for a few hours to several days.
UPDATE: With the right timing, you can break out of a boot loop into Download Mode...but it's tricky:
Insert USB Type C cable connected to your PC
Press and hold the Power and Volume Down keys for exactly 7 seconds (hard reset)
Release the Power key and press and hold both Volume Up & Down keys (enter Download Mode)
If you don't see the blue bootloader unlock warning screen, keep repeating the above two steps
The trick here is that you're trying to time your switch to the Download Mode keys for the exact moment the hard reset takes effect. If you see the boot logo while still holding the first key combination, it's too late. If you switch too early, you won't trigger the hard reset.
I've had to hold down both volume up and volume down while plugging in usb to get the unlock screen to populate. Canadian Wifi variant.
Jambii1987 said:
I've had to hold down both volume up and volume down while plugging in usb to get the unlock screen to populate. Canadian Wifi variant.
Click to expand...
Click to collapse
Thanks, that was an error in my initial post. I was figuring these out by trial and error, but it turns out that our hard resets are basically the same as for the Galaxy M30, which also uses the Exynos 7904 SoC and has no Bixby key.
https://www.hardreset.info/devices/samsung/samsung-galaxy-m30/download-mode/
UPDATE: Also the same as for the Galaxy A30 and some others.
https://www.hardreset.info/devices/samsung/samsung-galaxy-a30/download-mode/
Jambii1987 said:
I've had to hold down both volume up and volume down while plugging in usb to get the unlock screen to populate. Canadian Wifi variant.
Click to expand...
Click to collapse
Yes, I did the same way
US version
1. Enable OEM Unlock
2. Turn the tablet off and unplug the cable
3. Press and hold both volume up and volume down buttons and plug USB cable to host computer
4. You will get wipe screen. Long press volume up to unlock the bootloader.
Now I have to find matching ROM and patch the boot.img and flash.
I believe you have to disable Vault Keeper to keep root intact.
Brand new out the box 11am this morning.
Opened the parcel cool no damage. Powered up fine, had a mess with it, no problems check the speakers were fine and no issues plugged it on charge to 100% took it off and left it for an hour or so, went back to it and physically used it to use Facebook and play candy crush cool no problems. Took a few photos and no problems again. Put it on the side still on near 90% and went back to it 30 minutes later completely off and won’t turn back on, tried charging it nothing no sign of life, tried rebooting it and still nothing. Please tell me that this is not the end and I need to get a replacement... ?*
christina98 said:
Opened the parcel cool no damage. Powered up fine, had a mess with it, no problems check the speakers were fine and no issues plugged it on charge to 100% took it off and left it for an hour or so, went back to it and physically used it to use Facebook and play candy crush cool no problems. Took a few photos and no problems again. Put it on the side still on near 90% and went back to it 30 minutes later completely off and won’t turn back on, tried charging it nothing no sign of life, tried rebooting it and still nothing. Please tell me that this is not the end and I need to get a replacement... ?*
Click to expand...
Click to collapse
Have you tried getting into download mode? Or recovery for that matter.
Triscuit said:
Have you tried getting into download mode? Or recovery for that matter.
Click to expand...
Click to collapse
I’ve not even been able to get it back on, I’ve attemp a reboot countless of times and still nothing rectifys it. I spoke with Samsung they feel it’s a major fault with the tablet and have told me to request a replacement from my provider or even a refund.
Forgot pattern password, unable to power 510 Tab A off since pattern password is required. How to wipe tab or reset to factory without powering off?
Magendanz said:
If there’s no response on your device or you're stuck in a boot loop, then you might need to wait for the battery to drain. The 2019 Galaxy Tab A 10.1 has a non-removable battery pack, so disconnecting that isn't an option. Hopefully, the system reverts to its normal function with a cold boot. This can take time if the battery has high charge left at time of failure. Depending on how fast your battery drains, this can mean waiting for a few hours to several days.
UPDATE: With the right timing, you can break out of a boot loop into Download Mode...but it's tricky:
Insert USB Type C cable connected to your PC
Press and hold the Power and Volume Down keys for exactly 7 seconds (hard reset)
Release the Power key and press and hold both Volume Up & Down keys (enter Download Mode)
If you don't see the blue bootloader unlock warning screen, keep repeating the above two steps
The trick here is that you're trying to time your switch to the Download Mode keys for the exact moment the hard reset takes effect. If you see the boot logo while still holding the first key combination, it's too late. If you switch too early, you won't trigger the hard reset.
Click to expand...
Click to collapse
Ay, thanks i finally got it into download mode, it gave an error at the top left like kernel rev check fail or smth, it was boot looping and with this trick i got it into the bootloader imma flash stock again, THANKS AGAIN!

My Nokia 7 Plus does not boot at all or stuck on Android One logo

My phone suddenly restarted and stuck on Android One logo and not booting further. I've turned the phone off and started after few seconds and it was still stuck on Android one logo. Then I've tried to get into recovery mode by pressing Vol Up + Power but it was not working. Also it's not responding to the charger. No battery sign and nothing. It does not respond to power button many times. I've also tried to get into fastboot mode (Vol down + Power) and even it was not working. Please help!
It's not rooted and didn't try to flash/install custom ROM.
achalj said:
My phone suddenly restarted and stuck on Android One logo and not booting further. I've turned the phone off and started after few seconds and it was still stuck on Android one logo. Then I've tried to get into recovery mode by pressing Vol Up + Power but it was not working. Also it's not responding to the charger. No battery sign and nothing. It does not respond to power button many times. I've also tried to get into fastboot mode (Vol down + Power) and even it was not working. Please help!
It's not rooted and didn't try to flash/install custom ROM.
Click to expand...
Click to collapse
Take phone to discharge batttery and automatically turn off. Plug in to charger for few minutes and press and hold volume up,volume down and power for 2/3 minutes. He should be turn off and then you can go in to recovery.
Suffering the same problem.
I'm having the same problem. Exactly what you said. I didn't root my device or even attempt to do anything. I bought Nokia because they were purely stock and delivered some quality mobile phones. I've got only this phone as my daily driver. So tell me if you have got the issue fixed and how much did it cost and how long it took. It's been stuck with that 'android one' logo and a small message that reads 'Download mode' on top. I've tried everything. And what I'm worried about is, my phone's out of warranty and I'm a student. I hope you got it fixed for some reasonable cost. Please reply to me ASAP.

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