Hey all...took a look through the forum to see if this has been asked but I did not see anything so here it goes. I have an older S7 Edge SM-G935W8 (not rooted) that I love. I was using it a while back and the screen "glitched" and the unit turned off. I was at the cottage with no access to the internet so I tried a soft reboot...nothing happened. After I got back, I tried to Forced Reboot, charging, Safe Mode and Recovery mode methods but I get nothing. There are no lights, no vibrations, no nothing. I have left it on the charger for 24 hours (no light) and still nothing. There is absolutely no sign of life. I'm not inclined to have a tech look at it since it is just a media phone (no Sim Card) and it would probably cost more than the phone is worth but I figured I might check here to see if anyone has any ideas. Maybe dead battery, or motherboard?????? Many thanks in advance.
To be sure what you are going to have to take to a technician to analyze it. A battery shock may be required to see if it recharges or it may be a more serious problem, such as a short on the motherboard.
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Caveat - This is my son's phone, and only the recent observations are my own. I can't be sure he didn't do something to munge it up, though I am fairly certain he has not tried to flash it (I haven't either). In any case . . .
I bought an unlocked SMT5600 on eBay about 6 weeks ago. It worked great for about 3 weeks, then went on the fritz. It started by only booting to the red-green-blue OS screen. Removing the battery did nothing to reset it. It was still doing this when I retrieved it from my son. When I finally had time to look at it four days later, it booted once or twice to that screen, but then stopped doing even that. I have since done research online and not seen a similar situation. Other observations - there is no change if I swap out the battery for one that I know is charged. After replacing the battery, when I insert the charge cord (wall plug, not USB to PC) the power light flashes red briefly, then goes black and never comes on again.
Of course the eBay seller is telling me I'm SOL at this point. Before the problems began, I actually bought three more of these phones from the same seller and none has had any problems. My son is not into modding or installing programs, and tells me he has done neither. I think this is likely the case, but it is conceivable he or a friend might have tried something. So I am looking for assistance/direction in what to try next. Although I don't think I have the correct torx to disassemble it right now, I am willing to get the right tools and give that a go to avoid a $150 paperweight.
Thanks, mastman
booting to loader screen
I had this problem, turned out to be a faulty / stuck camera switch
check it clicks well, to check for stuck,
if it clicks well you will need to open the phone to check it with a meter.
not sure why its gone dead now, but sounds a little like a over flat battery.
Ive fixed these in the past by using a 300mah 3v suply for 20 secs at a time to bring it back up to a level the phone will charge.
please be very carefull li-ion cells are very dangerous, try useing a known good battery first in the phone to check its charging
good luck
j
My SMT5600 choked as it was being flashed, now it won't charge nothing, just a paperweight. Is there anyway to resurrect it? At all?
Thanks
Hi, I have a major problem with my G1, it will not boot up at all now.
To make a long story short. Every couple of days my phone would not wake up from sleep mode. I thought I was having the issue people were talking about here:
http://forum.xda-developers.com/showthread.php?t=528191
So i reverted back to Jesusfreakes 1.5 firmware and it kept happening. So i moved all my apps back to the phone and in fact removed all widgets and really jsut kept a couple of apps.
Anyway this has still been ongoign, usually though i just have to take the batter out and put it back in and we';re in business.
Today though... it's another story. The phone will not start up at all.
I pressed the red button = nothing.
i pressed the red and home button = nothing
red button and camera = nada.
I plugged into the power, a light doesn't even come on the phone. I laeve the battery out or in same thing. I even took out the SD card....
I think the phone just died on me... Anything else you guys can recommend I do?
Take out the battery and hold the Power button for 10-20 seconds.
Plug in the power adapter (without the battery) and see if the LED turns on.
Put the battery back in and see if it turns on.
Does your computer recognize it at all when it's plugged in to USB?
That's about all I know, if you don't see the charging light after you reset it using the power+no battery suggestion, I'd think it would be a hardware problem.
Well I wasn't having any of the waking up from sleep issues. But I did have my phone completely die on me. Same symptoms, it wast responding with anything I tried, and the notification led wasnt working either. I even tried another battery and what not. So this what I did:
1st I pulled the battery out and my sd card for a few moments, the plugged it back in... nothing
Then I let the phone on charge for about 16 hours (some1 suggested this, because messing with the SPL can send ur battery to -110% and takes about 14 hours to revive it. (this didnt do anything for me, but it may have helped I dont know)
Finally I took out my battery, my sim card and my sd card, and let the phone sit for like 10 hours or something, popped my battery back in, and the phone came back to life!
give it a shot, andd good luck
Thanks, i'll let you know in 2 days how it went
in the meantime i called HTC, they seem to know about this issue. He said they'll probably have to swap out the main board but i have to call during business hours for the repair department.
He told me to emphasize that my phone was unlocked so they return it that way also. Since they're putting a new mainboard in i'll ask them to put the rogers one in instead so i can get 3g (I'm with fido in canda 1900mhz)... Let's hope their customer service is extra willing to help out
So my phone was covered by warranty! I guess a dead motherboard does not show the kind of firmware running on the device hihi.
They tried to put a Rogers compatible motherboard in but it failed testing (I have a t-mobile device running on the Canadian network) so they inserted another motherboard. She does not see if it's Rogers or not though but she suspects it's a T-mobile compatible one. They also replaced my antenna.
Can't wait to get my G1 back!!! this Treo 650 is way to bulky
Hi all, tried searching for some help but couldn't find anything of any use, plenty of similar things only but not quite the same.
Basically, my phone had been in use today, as normal, nothing different, nothing new installed. I put it down on the table while I did some work around the house, an hour late I picked it up and it was off. It had around 70% power when I last looked at it, Not only had it turned off, it was so hot I couldn't hold it for more than a moment. After letting it cool down, I tried to turn it on and nothing at all happened. I decided to plug it in and leave it to charge a bit, but when I came back to it again half an hour later it was still dead and hot as hell again.
I have tried three different chargers and even a new battery that I bought in town just this morning, thinking the battery was the problem. Still exactly the same thing happening with new battery, wont charge, phone heating up within minutes to the point where I cant hold it. Heat seems to be building up underneath the memory card slot.
I did manage to boot it up briefly whilst it was plugged in before it got too hot but had to turn it off again to cool it down. It seemed to boot just fine on that occasion. Also managed to get it into recovery and did a cache wipe as well as a full factory wipe but no difference. Again I managed to boot it after the wipe, seemed to start up as you would expect a first boot to do, asking me to set up the phone, but again it was no gaining charge and was heating up very fast so had to turn it off again.
Any ideas what the hell has gone wrong with me phone?
I have a repair pack from Samsung on route as its only four months old, so they will do a warranty repair or a swap, but while I'm waiting, thought it best to ask here if anyone has any ideas.
Sorry for such a long post, if I need to post anything more specific feel free to ask.
Thanks in advance
I experienced such before...
Phone heats up a lot and shuts off when charging. I send the phone in for repair, the service center identify it as faulty motherboard and got a replacement handset...
It is just bad quality components in Galaxy S4. Go and change your phone at service center.
Thanks for that, I had a feeling it was motherboard, processor or USB board, Was kind of hoping I was wrong and there was something I could do at home to fix it but oh well...
Does it matter that I have the new German 4.3 firmware on a UK handset with multi-csc? Knox flag is still 0x0 if that matters to warranty lol. I cant flash anything stock if I cant turn the thing on lol.
Why is the S4 such a poor quality phone for a flagship, seems to be so many faults with the phone and battery. I've had both the cracked screen issue as well as this crash for no reason. My S2 on the other hand is still going strong and working perfectly despite being dropped a few times and having had no new parts or battery replaced. Its covered in marks and dents from prolonged use and still keeps going. Had that since launch. Back to using it while waiting for the four month old S4 to be fixed.
EDIT:
Strange new development, the original battery doest do anything any more. Nothing happening at all, no charging screen, no heating up, nothing. New battery still not charging and causing phone to heat up. Did manage to boot the phone up again for a few minutes last night and besides heat and not charging, it seemed to work. Making me think its not the motherboard at fault now or surely it wouldn't turn on. No idea what's going on now.
Let me start from the begining.
So the other day I plugged my phone into USB in order to charge it (I had to keep it close to me hence why I didn't plug it into the wall charger). The phone was charging, showing up as a media device on the lappy, etc. I was doing stuff on the computer then I heard it vibrate so I went to see what it was. The blue notification light was on (facebook notification most likely) and when I pressed the Menu button the screen didn't come on. I also tried the Power button but same thing. So I decided to restart the phone. Since then, it hasn't turned back on.
I tested the battery in another device and it's working perfectly fine. Neither recovery nor download mode work. I tried to do some of the tests people recommended for sudden death, like plugging it into usb and leaving it for a while, trying to kick start it (putting battery in while holding the recovery buttons) - you name it, i've done it. I even went to the lengths of taking off the back cover to see if theres any crap that got in there, maybe a loose connector, anything burnt - nothing. Unfortunately, I don't have a multimeter to see if there is a charge running through the board. Looks like sudden death to me, the only thing is - I rooted the phone on the 1st day I got it and I don't live in the country where I bought the phone so sending it over for warranty repairs would be a pain in the ass. What can I do? I would greatly appreciate your help, if you manage to help me fix my baby, I will ENSURE to send you a donation for a nice, big, cold beer (or maybe a few).
Looking forward to any answers! I really need my phone, I use it for work.
It seems like a hardware issue... you need to take it to a local store to scan it's hardware.... maybe something gone wrong while charging which made something be destroyed inside it..... hope its not the motherboard.....
it happens sometimes, when charging current fluctuate, it destroys the charging circuit and in result it damage the whole current circuit, local repair shop can solve the issue.
My perfectly working Galaxy S5 was put for charging at night and the phone wouldn't turn on in the morning. I tried restarting it and at times the "Samsung Galaxy S5 - powered by Android" flashes for a second or so and then the phone dies again.
I tried rebooting it, unplugged/replugged the battery, removed SIM and SD Card and tried to start the phone but nothing happens. On charging the phone, the screen does come up to show that the phone is being charged and as of now it is 100% but still won't power up.
I must add that the phone has had its share of falls during the 2 year usage and there is a small discoloration / crack like effect on the top left hand corner of the screen which however cannot be felt by hand by rolling my finger on the screen.
Samsung guys claim it a screen problem that needs to be replaced however an independent repairer is confident that screen is OK and it has something to do with some other hardware of the phone. He even removed the battery and connected a multi meter to the point on the phone which connects to the battery, tried starting the phone and the meter would show some current getting drawn and then come back to zero. He claims phone is not able to draw current from the battery.
Any clues what could be the problem and how to rectify it. I have loads of data I don't want to lose on the phone.
varung14 said:
My perfectly working Galaxy S5 was put for charging at night and the phone wouldn't turn on in the morning. I tried restarting it and at times the "Samsung Galaxy S5 - powered by Android" flashes for a second or so and then the phone dies again.
I tried rebooting it, unplugged/replugged the battery, removed SIM and SD Card and tried to start the phone but nothing happens. On charging the phone, the screen does come up to show that the phone is being charged and as of now it is 100% but still won't power up.
I must add that the phone has had its share of falls during the 2 year usage and there is a small discoloration / crack like effect on the top left hand corner of the screen which however cannot be felt by hand by rolling my finger on the screen.
Samsung guys claim it a screen problem that needs to be replaced however an independent repairer is confident that screen is OK and it has something to do with some other hardware of the phone. He even removed the battery and connected a multi meter to the point on the phone which connects to the battery, tried starting the phone and the meter would show some current getting drawn and then come back to zero. He claims phone is not able to draw current from the battery.
Any clues what could be the problem and how to rectify it. I have loads of data I don't want to lose on the phone.
Click to expand...
Click to collapse
Can you boot into recovery? Have you tried flashing a new firmware on the phone?
JohnSmit268 said:
Can you boot into recovery? Have you tried flashing a new firmware on the phone?
Click to expand...
Click to collapse
Phone isn't responding at all. No matter what I do, at the most the Samsung screen flashes for like 30 seconds and then the phone dies again.
On connecting with a computer the computer begins to recognise the phone and starts installing drivers for the same however it never completes the job.
So not sure how to flash a new firmware if the phone isn't responding at all.
Bumping the thread.
Another reason for this behavior is that the battery has no charge. Battery can be damage and no have charge at all
I would in this order
do you have another S5 available?
exchange batteries and see behavior
do not have another S5 available?
try to charge with a universal wall charger.
or it seems you have a tester. Make sure your battery have charge
Checked battery too but that doesn't seem to have a problem. Tried with other batteries also.
A local repair shop told me there's a problem with the boot IC.
My follow up question is can I replace the mother board with another Galaxy S5 motherboard? Are all the motherboards of Galaxy S5 compatible with each other?
I'd be careful when changing the motherboard. You *DO* need to find a compatible board...In other words which ever variant you have should be the variant you look for to source the donor board.
Also, you say you have data you want to recover? Swapping out the motherboard will remove every possibility of recovering that data; as all the flash storage is contained on the motherboard.
keithross39 said:
I'd be careful when changing the motherboard. You *DO* need to find a compatible board...In other words which ever variant you have should be the variant you look for to source the donor board.
Also, you say you have data you want to recover? Swapping out the motherboard will remove every possibility of recovering that data; as all the flash storage is contained on the motherboard.
Click to expand...
Click to collapse
How to locate a compatible motherboard? In other words how does one identify the variant of the phone?
varung14 said:
How to locate a compatible motherboard? In other words how does one identify the variant of the phone?
Click to expand...
Click to collapse
All the information you need is on the sticker underneath the battery.
Sent from my SM-G900F
Interesting piece of information.
I took the phone out almost after 8-9 months today. Tried to power it on by pressing the ON/OFF button and the phone came back to life without a glitch. There was almost 52% charge, date and time were spot on. I couldn't recall the pattern, as a result I couldn't unlock the phone.
I decided to wait for a while for my partner to come back and put in the correct pattern password and left the phone unattended for a while. In between I kept checking and the phone remained ON all the time.
Unfortunately, I decided to charge the phone while my partner returned. After half an hour or so I pulled out the charging cable and checked the phone for 1 last time. Phone was still ON. I left it untouched for a few more minutes.
As soon as my partner came back I told her about the phone coming back to life. She pressed the ON/OFF button to bring up the screen and key in the pattern but the screen just didn't come up. I have tried number of times since then but nothing.
Phone is dead again atleast as of now. Thinking of keeping it back for few more months and will try again.
In the meantime any sort of help will be highly appreciated.
Please note more than the phone I am keen on the data inside it. Need to recover it.