S7 died, no response at all anymore. (Black screen) - Samsung Galaxy S7 Questions and Answers

Hello,
I am quite familar with samsung devices and flashing etc. but my friends phone died today I suppose. At some point it got stuck and got into a bootloop. After some reboots it tried to find a ota update.zip, but there was none. After some tries I got into download mode, but flashing a stock image (was stock before as well, never seen root or something) did help at first (it booted, we backupped some stuff) but at some point it got stuck into bootloop again.
This time, when going into recovery, it tried flashing a firmware again, however this ended badly (freeze while flashing). Now it's not even charging anymore. Not a single button combination is working (force reboot, recovery, download mode, ...) and when plugging into a power bank, it doesn't even charge anymore (power bank shows if a device is charging). So it's completely back and unnoticed by odin, adb or fastboot. Does anyone know this problem or have an idea, what we could try? My last idea would be to test a wireless charger, which i sadly do not have at hand.
Thanks!

Cloud2F said:
Hello,
I am quite familar with samsung devices and flashing etc. but my friends phone died today I suppose. At some point it got stuck and got into a bootloop. After some reboots it tried to find a ota update.zip, but there was none. After some tries I got into download mode, but flashing a stock image (was stock before as well, never seen root or something) did help at first (it booted, we backupped some stuff) but at some point it got stuck into bootloop again.
This time, when going into recovery, it tried flashing a firmware again, however this ended badly (freeze while flashing). Now it's not even charging anymore. Not a single button combination is working (force reboot, recovery, download mode, ...) and when plugging into a power bank, it doesn't even charge anymore (power bank shows if a device is charging). So it's completely back and unnoticed by odin, adb or fastboot. Does anyone know this problem or have an idea, what we could try? My last idea would be to test a wireless charger, which i sadly do not have at hand.
Thanks!
Click to expand...
Click to collapse
If it's not showing any signs of life and will not charge then it's a hardware problem, you should start with the obvious like the usb connector. You are going to have to open the phone and check usb connection, battery connection etc. but it may be easier to take to repair shop.

cooltt said:
If it's not showing any signs of life and will not charge then it's a hardware problem, you should start with the obvious like the usb connector. You are going to have to open the phone and check usb connection, battery connection etc. but it may be easier to take to repair shop.
Click to expand...
Click to collapse
but when it died the first time, i was able to flash the stock image; after it rebooted, it was charging perfectly fine until it died again. from that point on, i was not able to get any sign of life anymore... maybe something crashed that badly and it's still running and i have to wait for the battery to completely drain, so it can do something again? or is the charging process completely hardware dependent, so a crash shouldnt do anything?

Cloud2F said:
but when it died the first time, i was able to flash the stock image; after it rebooted, it was charging perfectly fine until it died again. from that point on, i was not able to get any sign of life anymore... maybe something crashed that badly and it's still running and i have to wait for the battery to completely drain, so it can do something again? or is the charging process completely hardware dependent, so a crash shouldnt do anything?
Click to expand...
Click to collapse
the way to test if it has power but blank screen is to hold power+volume down+home. If it has power it will turn off and boot into download mode

After the Forst Crash all such combinations didnt Seen to work either. Once odin recognized is while having a black screen. At that point I flashed stock :/ but still, not even the led was showing something

Related

Constant boot loop - can't even get download mode

I have a rooted stock phone that stopped working for no apparent reason (no new ROM flashed, no configuration change). It starts, shows the Samsung logo, and immediately reboots. I tried to put it in download mode, when i hold the 3 keys I see the download logo showing up, but it reboots after a few seconds anyway. after a while it will start looping through the battery charge screen (which shows the battery as empty). I tried 2 different batteries with no change. Any idea how to get something working again?
That almost sounds like some sort of power issue. Have you left it sit turned off until the battery was full?
Yes, I left it overnight and it just keeps flashing the battery screen and then resets. I also have an external charger and used it to charge the battery, so it's not an issue with the battery actually being empty.
Have you been able to get the phone into download mode previously?
Have you have dealt with a boot loop and performed an Odin recovery previously? If not, remember it can take a few tries to get download mode to pop up.
If you can't get Odin to go, you might try flashing with Kies.
I am wondering if your phone met with some kind of disaster when you weren't around (trauma or liquid).
anyone747 said:
I have a rooted stock phone that stopped working for no apparent reason (no new ROM flashed, no configuration change). It starts, shows the Samsung logo, and immediately reboots. I tried to put it in download mode, when i hold the 3 keys I see the download logo showing up, but it reboots after a few seconds anyway. after a while it will start looping through the battery charge screen (which shows the battery as empty). I tried 2 different batteries with no change. Any idea how to get something working again?
Click to expand...
Click to collapse
This sounds almost exactly like the problem I had with my Sidekick. In my case, it turned out to be a bad battery and a loose ribbon cable on the motherboard. I'd check those two things.
This happened to me as well, and the three-button method to get into download mode wasn't working. For some odd reason, for me to get into download mode all I have to do is hold down the power button + track pad, and it goes right into download mode... Maybe slightly different model?
Try that - power button + trackpad
Bootloops.
Not a guaranteed fix by any means but for troubleshooting purposes you may want to consider making a USB JIG. It will most definitely help you figure out just how serious the problem is and if it IS software related with a way to get it working again you will need the JIG anyway so its worth a shot. If nothing else you learn a new skill and you're the proud owner of an incredibly useful tool that you can say you made yourself. good luck!
I know this post is kind of old, but it just happened to me last week (same circumstance, a rooted phone, but stock). I ended up just pulling the battery out and pressing the power button a couple times to hopefully drian it and letting it sit for 15 minutes, and then I put the battery back in and it worked again. I now have another rom flashed on it, I hate stock.
I know this forum is ancient, but I'm working on an E-Bay phone with this exact issue. I found the following thread the most useful and informative on the problem:
http://forum.xda-developers.com/showthread.php?t=1996709
Hopefully this helps other.
what i did was hold the power volume and button between the menu n back with the left hand YES HOLD IT UNTILL THE PIT IS UPLOADED. then u can let go then slide in the vattery with the right.while checking off the flash bootloarders on the heimdall with it fixing my phone XD
I had this happen, I dissassembled the phone, and used an alcohol pad to clean the power button area, and manipulated the button a lot, let it dry, reassembled...it still bootlooped.
BELOW IS RISKY BUT WORKED FOR ME
So while the back cover was off (exposing the cicuit board but everything still connected) I inserted the battery and watched it boot loop...during this, I used a flathead screw driver to "short" the power button pins...this let it boot fully, and it has been fine since.
i smacked the phones power button a few times and it worked

Phone will not stay booted, shuts off and shows an empty battery with a circle in it.

This is in relation to my other thread, however I created a new one because the title of there other is no longer valid. I can reboot into recovery and download mode. I have flashed everything that was recommended through odin. Everything appears to be back to stock , however the phone only boots when on the charger. Sometimes it stays booted for a few minutes and sometimes it remains booted for only a second. When it shuts off a blank battery appears with a circle in the middle. I tried a charged battery at verizon and it did the same. It is as if the phone does not recognize the battery. This happened yesterday when I was using gps. It just shut off and the problem that I just explained began.
elreydenj said:
This is in relation to my other thread, however I created a new one because the title of there other is no longer valid. I can reboot into recovery and download mode. I have flashed everything that was recommended through odin. Everything appears to be back to stock , however the phone only boots when on the charger. Sometimes it stays booted for a few minutes and sometimes it remains booted for only a second. When it shuts off a blank battery appears with a circle in the middle. I tried a charged battery at verizon and it did the same. It is as if the phone does not recognize the battery. This happened yesterday when I was using gps. It just shut off and the problem that I just explained began.
Click to expand...
Click to collapse
Maybe just get it replaced? as long as its all stock, you should be fine
I maybe will have to. Is there anyway I can be 100 % sure that it is stock if I cant even get the phone to boot up? When I get into download mode the flash counter is not tripped and it says official. I can not afford to have Verizon charge me 600. Do they just charge you out of the blue without consulting with you?
elreydenj said:
I maybe will have to. Is there anyway I can be 100 % sure that it is stock if I cant even get the phone to boot up? When I get into download mode the flash counter is not tripped and it says official. I can not afford to have Verizon charge me 600. Do they just charge you out of the blue without consulting with you?
Click to expand...
Click to collapse
Bump. Anyone? Donation for anyone who can get me back up and running.
Have you tried the phone with a DIFFERENT battery? Maybe take it to the store and get them to let you use one and if it works I would think they owe you a replacement battery. If it does the same with a different battery then I would get the phone replaced. If the flash counter is not tripped, and it says official in d/l mode I don't think you should have any issues with a replacement.
Kinda lame response but try cleaning the battery terminals. I have had a phone quit working like that and used a pencil eraser to scrub it clean and it worked after that.
Cole

Dead Phone

Well the thing is..i've been using my HTC ONE S for a while now...
Then after a while i tried to root my phone via recovery.
I unlocked the bootloader successfully since when i boot on bootloader my phone said on the top of the screen "UNLOCKED".
Then when i tried to get to recovery...it was stuck on entering recovery..nothing happened.
Installed CWM v6 touch and non-touch same results.
I was going to try TWRP but i went to bed.
Next morning during the day my phone ran out of battery. i mean 0%
i tried to turn it on when i leave it on the charger like an hour.
after an hour the pone didnt boot up..it just dead.
the pc doesnt recognize it at all...the charger makes a "bip" everytime i plug in the phone the led blinks a couple of times before fade again
tried hard/soft reset, tried to put it on bootloader, pressed Vol - and Power button, i keep em pressed for like a minute and nothing happened.
It doesnt show up a Qualcomm dispositive. i mean is not bricked, i never installed a custom ROM/RUU/
he worked like a charm the entired day before ran out of battery.
Tried to replug the battery nothing happened same results.
Sometimes when i tryed to only press the power button the screen flash a bit and then dies.
At the end i let the phone the entire night charging(more than 12hours)
Same results......
my phone doesnt have warranty....
I NEED HELP!
cold tdythis
mike_san said:
Well the thing is..i've been using my HTC ONE S for a while now...
Then after a while i tried to root my phone via recovery.
I unlocked the bootloader successfully since when i boot on bootloader my phone said on the top of the screen "UNLOCKED".
Then when i tried to get to recovery...it was stuck on entering recovery..nothing happened.
Installed CWM v6 touch and non-touch same results.
I was going to try TWRP but i went to bed.
Next morning during the day my phone ran out of battery. i mean 0%
i tried to turn it on when i leave it on the charger like an hour.
after an hour the pone didnt boot up..it just dead.
the pc doesnt recognize it at all...the charger makes a "bip" everytime i plug in the phone the led blinks a couple of times before fade again
tried hard/soft reset, tried to put it on bootloader, pressed Vol - and Power button, i keep em pressed for like a minute and nothing happened.
It doesnt show up a Qualcomm dispositive. i mean is not bricked, i never installed a custom ROM/RUU/
he worked like a charm the entired day before ran out of battery.
Tried to replug the battery nothing happened same results.
Sometimes when i tryed to only press the power button the screen flash a bit and then dies.
At the end i let the phone the entire night charging(more than 12hours)
Same results......
my phone doesnt have warranty....
I NEED HELP!
Click to expand...
Click to collapse
Run the OEM RUU first ( you need to know what network the phone is locked too and choose the matching RUU, should you have a few options to choose from then choose the highest number or latest version, if it's unlocked choose the HTC RUU again the latest or highest definition).
http://forum.xda-developers.com/showthread.php?t=2094414
If all else fails ...
Send it back to HTC service centre. Best outcome they'll repair it for free, worst outcome they will tell you how much it'll cost to be repaired and if you choose not to repair then you have to pay P&P for device to be returned. The choice is yours!
Hope that helps.
Optimus.prime.htc said:
Run the OEM RUU first ( you need to know what network the phone is locked too and choose the matching RUU, should you have a few options to choose from then choose the highest number or latest version, if it's unlocked choose the HTC RUU again the latest or highest definition).
http://forum.xda-developers.com/showthread.php?t=2094414
If all else fails ...
Send it back to HTC service centre. Best outcome they'll repair it for free, worst outcome they will tell you how much it'll cost to be repaired and if you choose not to repair then you have to pay P&P for device to be returned. The choice is yours!
Hope that helps.
Click to expand...
Click to collapse
The thing is when i connect my phone to the pc it does nothing. to run the RUU i need to be able to at least install the drivers
mike_san said:
Well the thing is..i've been using my HTC ONE S for a while now...
Then after a while i tried to root my phone via recovery.
I unlocked the bootloader successfully since when i boot on bootloader my phone said on the top of the screen "UNLOCKED".
Then when i tried to get to recovery...it was stuck on entering recovery..nothing happened.
Installed CWM v6 touch and non-touch same results.
I was going to try TWRP but i went to bed.
Next morning during the day my phone ran out of battery. i mean 0%
i tried to turn it on when i leave it on the charger like an hour.
after an hour the pone didnt boot up..it just dead.
the pc doesnt recognize it at all...the charger makes a "bip" everytime i plug in the phone the led blinks a couple of times before fade again
tried hard/soft reset, tried to put it on bootloader, pressed Vol - and Power button, i keep em pressed for like a minute and nothing happened.
It doesnt show up a Qualcomm dispositive. i mean is not bricked, i never installed a custom ROM/RUU/
he worked like a charm the entired day before ran out of battery.
Tried to replug the battery nothing happened same results.
Sometimes when i tryed to only press the power button the screen flash a bit and then dies.
At the end i let the phone the entire night charging(more than 12hours)
Same results......
my phone doesnt have warranty....
I NEED HELP!
Click to expand...
Click to collapse
When you mean you tried to replug the battery, does it mean you were able to open the casing of your oneS? It seems your problem is you have a bad battery, or else your battery is dead.
kasuma_asuma said:
When you mean you tried to replug the battery, does it mean you were able to open the casing of your oneS? It seems your problem is you have a bad battery, or else your battery is dead.
Click to expand...
Click to collapse
yeah i was able to open the phone, the battery is connected via pin to the motherboard (i though it was solder to the main base)
I'm going to try to charge the battery with an external charger, then plug in to the phone and see what happens.
Is all because of a bug on CWM....TWRP the best!
Testing
mike_san said:
yeah i was able to open the phone, the battery is connected via pin to the motherboard (i though it was solder to the main base)
I'm going to try to charge the battery with an external charger, then plug in to the phone and see what happens.
Is all because of a bug on CWM....TWRP the best!
Testing
Click to expand...
Click to collapse
yes, as I can recall on the battery pin, you'll just have to connect the red and black pin to an external power supply, good luck mate! you can do it! :highfive:

Working only while charging, battery or what

Hello, a friend of mine got a nexus s and the phone is working well while its connected to the charger or to PC, but when I unplug it everything lags. I can't do anything on the phone, nothing responses. If I plug it again, it runs as it should. I managed to unlock it and install CM11, but absolutely the same result. The bootloader launches well even while not connected, recovery starts too but its very laggy. If I try to start it normal, the nexus starts in the download mode(yellow android with a shovel). How do you think, the battery does not have enough power to maintain the OS, but it can start the bootloader and the recovery because they need less power? I tried charging it whole night, even charged it with nexus 7 charger which is bigger, but the same. Also, when connected and in recovery, the battery shows 75+ and if I unplug it it goes to 3-6+, could it be software issue and can I test it somehow...
Get back to stock. Put a Custom ROM again. Also, try a different battery. Let's see what the results are.
smit.sanghavi said:
Get back to stock. Put a Custom ROM again. Also, try a different battery. Let's see what the results are.
Click to expand...
Click to collapse
Tried another battery, the same result, which makes me think that the problem isn't the battery. Also, flashed stock GB bootloader, radio, system, user data and then the phone rebooted well. Removed the cable and its working well, except the front camera which I found not working. Then I turned the phone off and the power button does nothing, i can only enter in bootloader and reboot from there. Another thing I noticed, if I remove the battery and insert it again, no matter what I do (normal, or power+volume up) the phone boots in download mode when the bootloader is unlocked, and if its locked the phone boots only into the unlock- bootloader screen which is unresponsive. However, if its plugged in, it boots normaly and then works ok even when unplugged... Really cant find a solution
P.S. this is only with gb, i installed cm11 later and cant use it without cable, just like in the beginning...

s7 hard bricked (qualcomm version)

Hi,
I flashed a rom that did something bad to my phone. After reboot it just stays black without any response at all.
I've tried all the key combinations and just tried the USB Jig (confirmed the jig worked on my S3) but nothing.
Is there any way to get into download mode?
I've heard about JTAG, but not sure if that will work.
First, try to connect the phone to your charger to see if any LED lights up, if this doesn't happen, try connecting the phone to your PC and see if ODIN detects the device, if that also doesn't work...the best course of action would be to send it in for repair, although chances are you've hardbricked it.
Revontheus said:
First, try to connect the phone to your charger to see if any LED lights up, if this doesn't happen, try connecting the phone to your PC and see if ODIN detects the device, if that also doesn't work...the best course of action would be to send it in for repair, although chances are you've hardbricked it.
Click to expand...
Click to collapse
Thanks but I tried that already, pc doesn't even see the phone. Also charging gives no response.
btw: Love the Megumin avatar
totalvamp said:
Thanks but I tried that already, pc doesn't even see the phone. Also charging gives no response.
btw: Love the Megumin avatar
Click to expand...
Click to collapse
Possible it is stuck in some sort of loop, without having any LED to indicate it would be impossible to know
The charger doing nothing seems strange though
If you had an LED showing I'd suggest waiting for the battery to drain then trying to enter download mode again, but I guess if you've tried everything else and are considering opening it anyway for a JTAG, then disconnect the battery first, see if you can get back in after reconnecting it
*Detection* said:
Possible it is stuck in some sort of loop, without having any LED to indicate it would be impossible to know
The charger doing nothing seems strange though
If you had an LED showing I'd suggest waiting for the battery to drain then trying to enter download mode again, but I guess if you've tried everything else and are considering opening it anyway for a JTAG, then disconnect the battery first, see if you can get back in after reconnecting it
Click to expand...
Click to collapse
Yea tried all that but no luck.
I will try for the JTAG, but need a heater I doubt a hairdryer will be enough to pull the back off.
Also need the JTAG machine itself
opened the phone and removed battery but still nothing, it seems JTAG is the only way.
anyone knows how that works?
Are you getting some sort of output?
I'm using the Exynos variant, I've yet to encounter anything that wasn't solved by holding power+vol down+home for 40-50 seconds (it'll boot to download mode eventually usually)
obongo said:
Are you getting some sort of output?
I'm using the Exynos variant, I've yet to encounter anything that wasn't solved by holding power+vol down+home for 40-50 seconds (it'll boot to download mode eventually usually)
Click to expand...
Click to collapse
Tried for one minute and no result.
No output at all, nothing gets recognised in windows. No LED, no nothing...
Well, some users also reported sudden blackout with no response at all, it turns out it was an emmc failure. He then proceeds to send in his phone and luckily, it was replaced. Your mileage may vary, you could try playing "dumb" with Samsung. After all, with the phone dead there's no solid way to tell if KNOX was tripped.

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