Samsung J4 Core Possible Bricked? - Android Q&A, Help & Troubleshooting

Hi guys, I’ve inherited a Samsung J4 Core for a work mobile which doesn't work properly.
When I hold down the power button + Up & Down keys, this should boot into the Bootloader and I should be able to wipe/clear the phone. My issue is that it boots up, but then quickly shuts down after a brief blue screen with what looks like a yellow triangle and the laying down Android robot.
From searching on here, it appears this could be an issue where the battery isn't charged enough. I've left my phone on charge overnight and tried again this morning. Still no luck. I also have it currently plugged into my laptop and has been for the past couple of hours. Still, no luck apart from the same start and close sequence like above.
Any work-arounds as I'm struggling to resolve this myself?
Thanks.

Related

[Q] Samsung Galaxy S3 shuts off randomly. Won't turn on consistently?

My Samsung Galaxy SIII smart phone has only recently been having issues. My phone will turn on, will be charged and function as normal - ie, no performance issues at all when the phone is actually on. But sometimes, my phone will randomly shut off with no prompt or message. Sometimes it will attempt to turn back on itself, other times I need to press or even hold the power button to turn it on.
The real problem is when it boots, it SOMETIMES (3/5 times average) will begin to boot, then the screen goes black again - ie, the Samsung logo will show up upon vibrating, then shut off or reboot and try again (this can sometimes happen singularly or in tandem). Other times, it will boot as normal, sometimes working normally, other times just randomly doing the abrupt shut down, and the cycle starts over.
I've tried taking the battery out, rebooting it, booting to safe mode, removing battery + keeping it out for ~10 minutes to discharge, etc. My phone isn't up to date, as my phone is rooted. However, I haven't modified my phone or done anything to it in a long time, and this has only has begun happening recently. My current firmware is rooted stock Android 4.2. Are there any other solutions besides formatting my phone? I cannot send it in/get it replaced by my provider as my warranty has expired. Thank you. :angel:
Go to the Play Store and download emmc brickbug check.
Get that diagnosed.
If it's good i suggest you do a full wipe and update it to the latest samsung 4.3 update.
Ultimate GS3 sudden death thread.
Well you better get up to date, best to start with a factory reset and the latest stock rom first.
I guess you're running an unstable leaked 4.2.2 firmware,so I would suggest you to install stable 4.3 firmware.
Maybe your power button got stuck..
To find out, push your power button and keep hold it even the "samsung galaxy s III GT-I9300" appear.
Do you experience the same thing or not.
TheoDores said:
Maybe your power button got stuck..
To find out, push your power button and keep hold it even the "samsung galaxy s III GT-I9300" appear.
Do you experience the same thing or not.
Click to expand...
Click to collapse
I found a fix for my S3 which was doing EXACTLY what many of you are describing. I will get to the fix and it will sound ridiculous, but it worked for me and for the other people responding to the posted fix. ***** Hint: my problem was the power button and the fix was free and easy though may require you to be pissed at your phone as I was at the time.
Before getting to what fixed my phone. It seems like every one with a Samsung phone Sh*tting out in this manner should go through the well-conceived sequence I post below in the link. That guy though through the problem and made a great help list even though I found myself with a phone that was a mess even after all of those steps. My phone just vibrated when I tried to start it or maybe it began to show a graphic screen of the boot process before it went to black again and just vibrated. I am stuck with 4 more months of verizon contract so I was desperate and unahppy to say the least. I tried at least 50 time to boot my phone yesterday and went to a verizon store they were no help as expected especially when they saw a boot screen image that they did not recognize... I was one of those rooting creeps that they are not obligated to help...
first link:
http://thedroidguy.com/2014/03/fix-galaxy-s3-wont-turn-troubleshooting-guide/
A stuck or malfunctioning power button can cause... getting random reboots, lack of starting, lack of posting, getting stuck at various screens in the boot process and then going to a black screen which may just accompany a vibrating phone or a seemingly dead phone. Our problem is the power button being "stuck" underneath/inside of the janky, crappy little clip on power button that you are actually pushing in on your phone.
see this youtube video. In other words the thing you push is only pushing something else inside. I took my power button out (it clips in) cleaned out the cavity by blowing and with a toothpick and I was fixed!
http://www.youtube.com/watch?v=pQ-U-Q_NdOo
I was pissed at my phone so where the guy in the above youtube video says something like tapping his nail (finger nail) into the power button or whatever I was pretty aggressive and crammed my thumbnail down the sides of the power button until the janky little piece of crap actually popped out revealing itself as a clip kind of a thing. I then blew the hell out of the hole with all of the breath I could muster and took a toothpick and depressed the actual power button several times and "cleaned out" and cleared out any hair or gunk (really did not see any) that might have been in the socket. I put my power button back in (just clips in by itself if you put it in the socket the right way and push down) and I have had NO PROBLEMS since. Start with the first link I posted but be wary of the clearing Cache part unless you no what you are doing ahead of time. I had just done a factory reset and total wipe with TWRP before installing a new ROM so I did not have anything to lose. You might... I don't know enough about what resides in "cache" to advise you. Then if you are still in trouble listen to the second post which is a video. I actually crammed my thumbnail down into the power button cavity on both the top and bottom (the long axis) of the button aggressively enough that the visible button popped out. Then I did my blowing and cleaning, etc... crammed the visible button back int - which clips into place and I have been stoked since. Hope it works for you if not, sorry!
*As a side note, I sort of assumed that the problem with my phone (and I bet yours) has something to do with power: either getting to the right place in the phone from the battery or the power chord OR the f*ing power button on our cheap, janky plastic yet expensive Samsung phones might be a problem because before the weird random reboots and not booting began the power off dialog (like when you hold the power button down long enough and you get the "reboot" "power down" "airplane mode" menu kept coming up while I was surfing watching youtube or even talking. I figured it was time to install another ROM, did so twice and still had the same issues. I reflashed recoveries back and forth from TWRP to the other one several times too. Nothing worked until I cleaned out the power button. Go figure.
I was pissed at my phone so where the guy in the above youtube video says something like tapping his nail (finger nail) into the power button or whatever I was pretty aggressive and crammed my thumbnail down the sides of the power button until the janky little piece of crap actually popped out revealing itself as a clip kind of a thing. I then blew the hell out of the hole with all of the breath I could muster and took a toothpick and depressed the actual power button several times and "cleaned out" and cleared out any hair or gunk (really did not see any) that might have been in the socket. I put my power button back in (just clips in by itself if you put it in the socket the right way and push down) and I have had NO PROBLEMS since
Click to expand...
Click to collapse
I tried a similar approach and it looks like it actually worked. I just took the plastic cover of and removed he 10 little screws and played around with the plastic thingy that depresses the power button. I don't know what exactly fixed it but is seems to work.
So you might not have to remove your power button but instead just play around with it first and see if you can't get it to function properly again.
Thank you so much brjoon1021!
Galaxy SIII I9300 shuts of randomly but only when not used
I have a problem with my S3 since about a week now. First it was a standard S3 with stock ROM and not rooted. The phone would turn itself of 3 - 5 times during daytime and also at night when charging.
What I tried:
- Clearing battery connections
- Cleaning power button
But finally I think it's not a hardware problem. Loose contacts, battery connections or a power button problem would probably cause more shut downs when I was using it. But in my case it's the opposite: it always shuts down when I am *not* using it.
So I rooted the phone and flashed a custom ROM on it: [ROM] [4.4.4] [CyanogenMod] [GCC 4.8] [Excellent] [31/12/14] ArchiDroid V3.0.2
That was succesfull, but after that I still had the same problem.
When do I have this problem: as stated: always when I am *not* using the phone. It's lying on my desk or next to my bed, charging and no program is running.
When I don't have the problem: when some program is running on the foreground, at night during charging if I keep the clock on the foreground (daydreaming), when I have waze running (in my car) etc.
I have the impression the device only shuts itself down when in deep sleep mode.
I also tested if it was a case of Deep Sleep of Death, but when the phone is shut down, I can not text to it, the LED does not light up.
I can boot the phone by pressing the power button once for about 8 seconds, so that seems a normal boot and not a reboot.
Any suggestions on what I could test? Or how I can find out what the problem is?
Thanks!
Dion64 said:
I have a problem with my S3 since about a week now. First it was a standard S3 with stock ROM and not rooted. The phone would turn itself of 3 - 5 times during daytime and also at night when charging.
What I tried:
- Clearing battery connections
- Cleaning power button
But finally I think it's not a hardware problem. Loose contacts, battery connections or a power button problem would probably cause more shut downs when I was using it. But in my case it's the opposite: it always shuts down when I am *not* using it.
So I rooted the phone and flashed a custom ROM on it: [ROM] [4.4.4] [CyanogenMod] [GCC 4.8] [Excellent] [31/12/14] ArchiDroid V3.0.2
That was succesfull, but after that I still had the same problem.
When do I have this problem: as stated: always when I am *not* using the phone. It's lying on my desk or next to my bed, charging and no program is running.
When I don't have the problem: when some program is running on the foreground, at night during charging if I keep the clock on the foreground (daydreaming), when I have waze running (in my car) etc.
I have the impression the device only shuts itself down when in deep sleep mode.
I also tested if it was a case of Deep Sleep of Death, but when the phone is shut down, I can not text to it, the LED does not light up.
I can boot the phone by pressing the power button once for about 8 seconds, so that seems a normal boot and not a reboot.
Any suggestions on what I could test? Or how I can find out what the problem is?
Thanks!
Click to expand...
Click to collapse
Hi
I have the exact same problem!
I tried factory reset, wipe cache, I have bought new battery ... nothing helped so far...
S3
pagep said:
Hi
I have the exact same problem!
I tried factory reset, wipe cache, I have bought new battery ... nothing helped so far...
Click to expand...
Click to collapse
Turn off sync. See if that helps it fixed mine.
zern said:
Turn off sync. See if that helps it fixed mine.
Click to expand...
Click to collapse
Well it started to get worse every day, so we tried factory reset once more and after that, the phone just died. (only colored rubbish is shown on the screen) ...
Never ever buying Samsung again. Piece of crap ...
Anyway we had chance to buy LG G2 on the sale. I know it's quite old, but the price was perfect and it's many times better than S3. :good:
Dion64 said:
I have a problem with my S3 since about a week now. First it was a standard S3 with stock ROM and not rooted. The phone would turn itself of 3 - 5 times during daytime and also at night when charging.
What I tried:
- Clearing battery connections
- Cleaning power button
But finally I think it's not a hardware problem. Loose contacts, battery connections or a power button problem would probably cause more shut downs when I was using it. But in my case it's the opposite: it always shuts down when I am *not* using it.
So I rooted the phone and flashed a custom ROM on it: [ROM] [4.4.4] [CyanogenMod] [GCC 4.8] [Excellent] [31/12/14] ArchiDroid V3.0.2
That was succesfull, but after that I still had the same problem.
When do I have this problem: as stated: always when I am *not* using the phone. It's lying on my desk or next to my bed, charging and no program is running.
When I don't have the problem: when some program is running on the foreground, at night during charging if I keep the clock on the foreground (daydreaming), when I have waze running (in my car) etc.
I have the impression the device only shuts itself down when in deep sleep mode.
I also tested if it was a case of Deep Sleep of Death, but when the phone is shut down, I can not text to it, the LED does not light up.
I can boot the phone by pressing the power button once for about 8 seconds, so that seems a normal boot and not a reboot.
Any suggestions on what I could test? Or how I can find out what the problem is?
Thanks!
Click to expand...
Click to collapse
my is also the same problem..if u have found solution for it please tell me .

Galaxy 10.1 not rebooting, need help!

Hello,
I have a problem with my tablet, I have looked and tried for several days and have not been able to get any real results.
To start with, my tab originally was running really slow. I thought I may have a virus, so I did a factory data reset. Once it tried rebooting, a warning come up that there was a missing file, I didn't have time to write it down. Anyway, it started to reboot, the boot screen comes up "Samsung GALAXY Tab 10.1" but that's as far as it gets. That's all it would do till it drains the battery down, can't even turn it off. I pressed the power and volume key to get into the selection screen to boot or download. I have tried several times to reload the recovery.tar.md5 through Odin3, it says everything works fine, doing this finally allows the battery to show up on the screen while it's charging. Now when I boot it it gets past the former screen and does the video sequence that ends with the SAMSUNG in the center of the screen and hangs there. It finally restarts and hangs on the first screen again. I have looked and looked, and can't seem to find what I need. I really need some guidance, please understand I need some help!
Thanks!
Well, after several more attempts I got it to completely boot up! left it on for a few minutes, got it all setup and onto the home screen. This was late last night, so I decided to shut it down (power off) and plug it in. Got up this morning and it is doing it again! Anyone have any thoughts? Could this be a problem with the processor or any other hardware parts?
Not really sure what's going on with your tab, but you can try to flash the full stock ROM from Odin. You can get it from www.sammobile.com.
Sent from my GT-P7500 using Tapatalk
I appreciate the suggestion, I already went to Samsung and got everything I could from there - updated drivers, But I did not see the ROM. I will take a look tonight when I get back home. Thanks for taking your time to reply!
I went to Samsung people in Best Buy, he pointed me to the Samsung Kies. He seemed to think it was hardware also. How would I tell if it is either? I am leaning towards hardware, because it did let me get in and set-up my accounts etc... then I powered off & the problem has reared it's ugly head when I tried to power it back on.

S III I9305 Works with Charged Battery, but Cannot be Charged...

Hi guys,
My S III seems to be working fine once the battery is charged. I have been using another S III to charge my battery (which is very annoying).
I thought it might be the USB port and am thinking of replacing it. However, there are also other symptoms which I have not been able to discover anywhere else on the internet yet.
First, when pressing the power button on the side, the phone does not boot like it used to, i need to hold the button for longer than usual and then the charging icon appears, before booting to the home screen.
Second, the battery icon in the top right corner always has an exclamation mark in it like it is critical, but the battery will last as normal.
So, all these three things are connected to the battery and charging, but how? Does anyone have any suggestions how to fix? Remember, I can not use the USB port so the phone does not connect to my PC. Thanks!
Hi,
This thread is being moved to your own dedicated forum, where the experts may be able to help you better.
Good luck!

Samsung Galaxy S2 i9100 Won't do absolutely nothing.

I have a certain problem with my Samsung Galaxy S2. It's a bit old now, It has about 4 years with me. A couple of days ago, I was charging my phone and it was a bit hot. And I recieved a call. I answered it, and the phone went black. I tried turning it on and, nothing. All it showed was a blue screen with a black circle on the top left corner. The phone hasn't gotten any bumps or has fallen out of my hands or anything of that nature. I decided to turn it off, take out the battery and not touch it for a day. I placed back the battery the next day and, this time, nothing shows up. Today, I decided to use it again, and connect it to my laptop, and the laptop detected it. I really don't know what to do. Is there a fix for this problem? I'd appreciate your help. Thanks.
is downloadmode working (when phone is off, do voldown+home button + power button)

S6 - Bricked - Black screen and Solid White LED

Hello, friends
Out of the blue, my S6 Edge tried to restart, but got stuck in a loop at the Samsung Logo. One or two times it went to "insert pin" and then restarted again. I tried to Force Restart and it didn't solve the problem.
After a few tries, I managed to wipe the cache partition. Now it's simply bricked with a black screen and a Solid White LED. I can't restart it, enter download mode or safe mode or anything. Odin doesn't recognize it at all. Is there anything I could try?
The phone is not rooted.
nclsamy310 said:
Hello, friends
Out of the blue, my S6 Edge tried to restart, but got stuck in a loop at the Samsung Logo. One or two times it went to "insert pin" and then restarted again. I tried to Force Restart and it didn't solve the problem.
After a few tries, I managed to wipe the cache partition. Now it's simply bricked with a black screen and a Solid White LED. I can't restart it, enter download mode or safe mode or anything. Odin doesn't recognize it at all. Is there anything I could try?
The phone is not rooted.
Click to expand...
Click to collapse
Hold only vol down + power for 20 seconds. Does the screen go off? Its not bricked otherwise you wouldnt even have the led lit. Theres hope
callumbr1 said:
Hold only vol down + power for 20 seconds. Does the screen go off? Its not bricked otherwise you wouldnt even have the led lit. Theres hope
Click to expand...
Click to collapse
Thank you! Tried it. Doesn't work. It's beyond my understading why would it behave this way after I managed to clear the cache. At least before that it went into download mode or safe mode. I still suspect a software issue.
nclsamy310 said:
Thank you! Tried it. Doesn't work. It's beyond my understading why would it behave this way after I managed to clear the cache. At least before that it went into download mode or safe mode. I still suspect a software issue.
Click to expand...
Click to collapse
So vol down + home + power will not get you to download mode?
How about recovery? Vol up + home + power?
This happened to me before and the way i got out of it was hold only vol down + power as soon as the screen went off completely (no led lit) switch to download mode combo.
Tried both of the commands. They didn't work. I will let it drain the battery completely and then see what happens.
nclsamy310 said:
Tried both of the commands. They didn't work. I will let it drain the battery completely and then see what happens.
Click to expand...
Click to collapse
Keep me posted
nclsamy310 said:
Tried both of the commands. They didn't work. I will let it drain the battery completely and then see what happens.
Click to expand...
Click to collapse
reminds me of the bad emmc memory like the note 4s had.
some times completly letting the battery drain can fix it being "stuck". then recharge for 20 min or so then trying to turn on.
if u plug it into pc does it reconize anything in device manager
even unknown device or descriptor failed anythiing at all?
This morning the LED was off, so I tried to recharge it. Nothing happens. Also, the PC doesn't detect it at all. I think it's safe to assume I need a new phone. Too bad...at least if I was able to recover the data on this.
nclsamy310 said:
This morning the LED was off, so I tried to recharge it. Nothing happens. Also, the PC doesn't detect it at all. I think it's safe to assume I need a new phone. Too bad...at least if I was able to recover the data on this.
Click to expand...
Click to collapse
you can thank sammy for no ext sd card for that one or more than likely pics would be on sd
now one last sollution is to try buying a cheap battery my note 5 had a issue it shut of one day and wouldnt do nothing i understand ures was blinkik and trying at least
so its a leap but last resort
same problem here started over a week ago - samsung S6: black screen, constant white led. tried all variations of resetting with buttons. over a year ago i replaced the battery, and its been fine since. when this no boot issued happened i also tried changing the battery to a known good one. on inserting a battery and then pressing the power button the indicator led will go to green for less than a second before changing to constant white, and it stays that way no matter what until the battery is drained or the battery is removed. Strange thing is there is no information from samsung on what this behaviour means, but I've come across dozens of other S6 owners on the web with the same problem, so this is obviously diagnostic behaviour designed by samsung - but no info from samsung. the phone has never been damaged or watered or rooted so I'm at a loss.
Confirmed diagnostics:
The phone will respond to the power button and attempt to turn on
The phone will charge a battery, so the charging circuits and battery circuits are working.
The phone does not get picked up by a Windows 10 PC with Kies installed in any state - other samsung phones get picked up no problem.
Same here
I have the same symptoms. When I hild the vol up+home+pwr I get a green let for 1/2 sec then white. No other combinations do a thing. I swapped the battery for a new one. No luck.
Mine started a few days ago. The phone was 50% charge and i plugged it in for two hours. Came back and it had a solid red led. After a few hours the red light went off. It was then 100% unresponsive. I then took it apart and disconnected the battery. When I reconnected it, it started to do the white let thing described above
athcliath said:
same problem here started over a week ago - samsung S6: black screen, constant white led. tried all variations of resetting with buttons. over a year ago i replaced the battery, and its been fine since. when this no boot issued happened i also tried changing the battery to a known good one. on inserting a battery and then pressing the power button the indicator led will go to green for less than a second before changing to constant white, and it stays that way no matter what until the battery is drained or the battery is removed. Strange thing is there is no information from samsung on what this behaviour means, but I've come across dozens of other S6 owners on the web with the same problem, so this is obviously diagnostic behaviour designed by samsung - but no info from samsung. the phone has never been damaged or watered or rooted so I'm at a loss.
Confirmed diagnostics:
The phone will respond to the power button and attempt to turn on
The phone will charge a battery, so the charging circuits and battery circuits are working.
The phone does not get picked up by a Windows 10 PC with Kies installed in any state - other samsung phones get picked up no problem.
Click to expand...
Click to collapse
I have one that behaves exactly the same I changed the battery and didn't make any difference. my next step is to replace power management chip. I'll let you know.
Any luck on this?
Mine has been like this for a couple months, kind of gave up on it, but decided to give it a go again!
Same problem here, just happend after switching the battery. Anyone have solved this?
I found a kinda solution, plug your charger in and charge past 30% then unplug charger. then use just vol down and power button for 7-10 seconds, after 7-10 seconds just release the power button while still holding vol down button until you see samsung logo, you can tell if you did it wrong by the solid led being back on, repeat until success, once you have it on do NOT press the power button or it will RESET back to solid led/black screen.
I have the same problem with my s6 active and similar story to dbeeheim. Has anyone fixed this? And can anyone confirm that enzo13's solution works?
Much thanks in advance!!
i have same problem!
Suddenly my S6 dead, battery was ~80%, no charge
yesterday i try to change battery, after that if push power button, LED small light comes but in white with purple, then stuck. (it's small Notifications LED)
and i chnge the screen, but no more than white/prople LED.
(no any thing on screen, always black..)
what is the problem?
i think it's battery because it last month didn't work good, and it's old 3years battery.. but no idea..
Hello guys my Samsung S6 sm-g920f has the solid white led and black screen. Really no fixes?
thank you
Same issue
I have the exact same issue. My Galaxy S6 Edge (G925F) suddenly died and won't get past the 'Galaxy S6 Edge Powered by Android' screen.
I am unable to reach the recovery options. I've tried flashing two different stock ROMs with Odin which succeed but without successfully turning on my phone. I've also tried flashing TWRP with success in Odin but it won't get past the 'Powered by Android' screen before turning off after +-4 seconds. The white LED is on even when the screen is black.
Just had this same issue, my battery died and I forgot to charge my phone overnight, woke up and it would not turn on, black screen. I did manage to replace the battery and do several diagnostic tests on it. My battery was receiving about half the power output it should be (this is normal it's a 4.5yo phone) and when I replaced the battery with a new one, it did not turn on. With wireless charging I can tell I am receiving a charge and with standard I can not. The screen does not indicate it is charging with either method but my wireless charging pad lights up indicating my phone is being charged. I think it may be the processor or screen itself. This really sucks because I lost all my data on my phone and data recovery can be over $500

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