i9505 wont boot (power button?) - Galaxy S 4 Q&A, Help & Troubleshooting

So my i9505 suddenly turned off one night and when the battery is inserted it turns on by itself and after a second cuts off. Its like the power button is jammed or something. I put some alcohol in the power button and pressed it lots. This made no difference. Anyone got any suggestions?

Do you have a multimeter to test the power button connections to the motherboard?
There should be three contacts for the power button.
https://www.youtube.com/watch?v=Hq_bZELmSIQ

audit13 said:
Do you have a multimeter to test the power button connections to the motherboard?
There should be three contacts for the power button.
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Click to collapse
Ended up buying a note 3 to replace it. A shame, was planning on keeping the s4 for longer. Now I have loads of useless s4 parts and 3 batteries haha.

The note 3 is a nice phone too. Love the big screen and pen.
Maybe sell off your s4 parts or give them away?
When I have cell phone or computer parts that I no longer need and they have little value, I give them away using a local buy&sell forum in my city.

Related

[Q] How to repair a broken power button?

I posted in the at&t forum to no avail and thought I might try here.
My S4 automatically turns on when I put the battery and gives me the SAMSUNG logo and the custom logo under it and then after about 3 seconds it shuts off and no response from the phone afterwards. I'm pretty sure it is a power button problem because I disconnected the usb board and tried and had the same problem, and checked the continuity of the battery contacts and they were fine. I also was able to turn the phone for a short period of time by placing a piece of paper between the LCD housing and the power button (a fix I used for my Samsung Infuse) but it didn't stay on for long. The soldering is too small to do myself if I wanted to replace it, and all of the local "shops" only do screen repairs on galaxy phones.
Is going to Samsung to repair it my only option?
Also, if I were to remove the button completely, would I just be able to use the phone without a power button?
Thanks
Did you try visiting those shops? I'm sure they can also can fix the powerbutton if you ask them. You can get the power button for like 5 dollars on ebay.

[Q] Sprint Galaxy S5 Not Powering On

Can someone please give me some advice on what to do. My phone is less than 3 months old and will not power on. It doesn't do anything, not even the vibration it usually does. I've tried plugging it into the charger but it doesn't even have the charging light on. It was working fine and just stopped. I pulled the battery out and put it back in but nothing it working. If If anyone has any suggestions, I would be very grateful! Thanks!!!
what were you doing at the time
What were you doing at the time the phone stopped working? Did you try charging the battery on an external charger?
As the poster above suggested, what were you doing recently? We are looking for clues as to what happened? Did you yank on the power cord, drop the phone, et cetera?
Make sure that your battery isn't in backwards in the phone and try using a different cable to charge the phone. If it still doesn't charge, then borrow a friends external charger.. or even the (charged) battery out of their S5 for a few seconds to see if your phone will turn on. We're trying to differentiate between a dead battery and all other problems.
If you still have no luck, then remove the battery for ten seconds, then replace (the presumably charged) battery in your phone. Then press and hold the volume down key. Then also press and hold the home key, then the power key. After about five seconds, you should see the phone start to the "download screen". If so, post here for further guidance.
If you phone is non responsive to a borrowed battery and the download mode described above, then you should seek warranty service with your carrier. A three month old phone should still be under warranty.
.
goddie392 said:
What were you doing at the time the phone stopped working? Did you try charging the battery on an external charger?
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Click to collapse
I was talking on it and hung up. Then, I tried to use it about 5 mins later and it wouldnt turn back on. What do you mean by "external charger"?? Sry, I'm not very tech savy lol! The only charger I have is the one that came with my phone. Thank you for replying! ☺
fffft said:
As the poster above suggested, what were you doing recently? We are looking for clues as to what happened? Did you yank on the power cord, drop the phone, et cetera?
Make sure that your battery isn't in backwards in the phone and try using a different cable to charge the phone. If it still doesn't charge, then borrow a friends external charger.. or even the (charged) battery out of their S5 for a few seconds to see if your phone will turn on. We're trying to differentiate between a dead battery and all other problems.
If you still have no luck, then remove the battery for ten seconds, then replace (the presumably charged) battery in your phone. Then press and hold the volume down key. Then also press and hold the home key, then the power key. After about five seconds, you should see the phone start to the "download screen". If so, post here for further guidance.
If you phone is non responsive to a borrowed battery and the download mode described above, then you should seek warranty service with your carrier. A three month old phone should still be under warranty.
.
Click to expand...
Click to collapse
My battery was charged in the 70% and I also used my husbands battery (we have the same phone) but that didnt work either. I'm going to try your other suggestion. Thanks!
melissadf79 said:
My battery was charged in the 70% and I also used my husbands battery (we have the same phone) but that didnt work either. I'm going to try your other suggestion. Thanks!
Click to expand...
Click to collapse
Can you get into recovery ( volume up + menu +power button) or download mode (volume down + menu + power button)?
You may read this article http://www.technobezz.com/samsung-galaxy-s5-not-charging/, hope it helps.
I tried the volume down + home + power and it didn't work. I'm not sure what to do. I don't want to make a trip to the store but it's looking like I'm going to have to.
melissadf79 said:
I tried the volume down + home + power and it didn't work. I'm not sure what to do. I don't want to make a trip to the store but it's looking like I'm going to have to.
Click to expand...
Click to collapse
It may well be an electrical hardware issue, it doesn`t look like a software problem to me. Good luck and i hope its fixed soon
melissadf79 said:
I tried the volume down + home + power and it didn't work. I'm not sure what to do. I don't want to make a trip to the store but it's looking like I'm going to have to.
Click to expand...
Click to collapse
It is looking like a hardware issue. If you are positive that the battery is charged.. i.e. if the battery turns your husband's phone on, then we ask what is different about your phone? Most software issues would be bypassed by starting a phone in download mode, which is why I asked you to try that.
Have a quick look at the battery "fingers" or pins on your phone. Those are the gold or silver coloured pins that line up with the gold or silver tabs on the end of your battery. Do they all appear to be the same? There isn't one that is bent out of alignment or shorter than the others where it might not be making contact with the battery?
And why not try one more test? See if the phone will start up in "recovery mode" this time.
Pull the battery out of the phone for ten seconds. Then replace it. Now in order.. press and hold the volume up button, then press and hold the home button as well. And last, press and hold the power button. Continue holding all three for ten seconds or until you see the phone screen turn on.
If that still doesn't work, my best guess is that you may have accidentally banged and damaged the power button. If it was me.. I'd try pressing really hard and wiggling the power button for a few seconds to see if you can cajole the phone to power on at least once and confirm the problem.
But that is about all that we can do. If you can't get the phone to power up with a known good battery.. then th store needs to check it with test equipment to narrow down what the hardware fault is.
.

[q] i need help urgent my samsung galaxy s4 overheated

does anyone here encountered this kind of problem and fix it?
last night i turn off my phone and charge it. after an hour i notice that its very hot. in sim card tray area and in memory card tray area. even the front screen suffer from that over heating but the battery didn't heat at all. the first time i try to turn on the device the samsung logo appears but immediately shutdown. then i let the phone cooldown for 4-5 hrs thinking the problem will be fixed. but after i try to turn the phone again nothing really happening. no vibration, no samsung logo nothing at all. and when i try to charge again it via pc and via power plug it's not charging and after 2-3 minutes the my phone is starting to become extremely hot again.
i already tried to press and hold volume down + menu button + power button
volume up + menu button + power button
holding all buttons + power button
removing battery and hold power button for 1 min and put it back again and power button
all that nothings happen.
can anybody here thell whats the problem of my samsung galaxy s4 i9505? i will be extremely grateful for your help. thankyou
blackscreenofdeath43423 said:
does anyone here encountered this kind of problem and fix it?
last night i turn off my phone and charge it. after an hour i notice that its very hot. in sim card tray area and in memory card tray area. even the front screen suffer from that over heating but the battery didn't heat at all. the first time i try to turn on the device the samsung logo appears but immediately shutdown. then i let the phone cooldown for 4-5 hrs thinking the problem will be fixed. but after i try to turn the phone again nothing really happening. no vibration, no samsung logo nothing at all. and when i try to charge again it via pc and via power plug it's not charging and after 2-3 minutes the my phone is starting to become extremely hot again.
i already tried to press and hold volume down + menu button + power button
volume up + menu button + power button
holding all buttons + power button
removing battery and hold power button for 1 min and put it back again and power button
all that nothings happen.
can anybody here thell whats the problem of my samsung galaxy s4 i9505? i will be extremely grateful for your help. thankyou
Click to expand...
Click to collapse
Did you used Original Samsung charger? if not that might be the problem.
Your phone is probably damaged internally since you said it overheated.
Go to your nearest samsung store or carrier and ask there. hope your warranty isnt voided yet.
Good luck.
i borrow charger and im not sure if its original or not. im not sure if this still has warranty.
what might be the problem? how much will i pay if they fix my phone?
blackscreenofdeath43423 said:
i borrow charger and im not sure if its original or not. im not sure if this still has warranty.
what might be the problem? how much will i pay if they fix my phone?
Click to expand...
Click to collapse
depends on samsung maybe its for free.
The charger isnt compatible with your device and maybe it overcharged and overheated the device.

i9505 does not turn on

Hi to everyone,
I bought my S4 in Germany and I live in France.
My phone, after 10 months started to exhibit strange behaviors:
- Turning off and then turning on by itself
- Turning off and then not turning on, so I had to remove the battery, reinsert it and it then vibrates and turns on for few seconds and then it turns off again
- Sometimes it is able to turn on and it worked
So, I sent it back to the reseller (it was not amazon directly). They told me it presented traces of water and they repaired it on goodwill even if the smartphone should not be repaired because water is not into warranty.
Anyway they sent it back to me, it worked for 1 month, and now I have a phone that doesn't turn on anymore. I told them, they told me it is not their problem and it is not anymore in warranty because I had ONLY one year of warranty (I bought it 'as new' on amazon). Anyway they sent me a new battery and I tried the battery on another S4, it is working, so the battery is not the problem.
I went to an authorized shop to get it repaired but they told me that they wanted crazily expensive money. So, I am a robotics engineer, I decided to repair it by myself and that is why I am here.
I want to ask you what could be the problem. I read until now 2 possible reasons:
1) The power button is faulty. In this case is there any way to connect the contacts the button connects with an hard connection?
2) The USB board is not charging the battery. I tested with a multimeter and the + - voltage on the battery was always around 2.62/2.64 V. I don't know if this is normal but I checked that the part is not expensive.
Thanks a lot for your help.
The USB board isn't expensive but I don't believe the USB board is the problem here. Lithium batteries come partially charged when new, so if the S4 didn't turn on after putting the new battery in it, then the only remaining issue is the power button. Buying a replacement power button should be just as inexpensive as that USB board. Plus, being a robotics engineer you should have basic knowledge of soldering, meaning you could replace the button yourself.
It does sound like a power button issue.
A set of 4 buttons is about 5 dollars on the internet.
I'd recommend opening the phone up and checking the power button with a voltmeter.
If it is the power button, then simply replace it. It doesn't seem hard. Here's a guy with a power button issue. You can see where to check and how to replace it.
Thanks. I will try with the voltmeter. Thanks a lot.
So, I unmounted everything and tested the power button. I am quite sure it is faulty. ( I will be 100 % tomorrow because I could test only with a really bad multimeter) .
Anyway I have a question in the meanwhile. Is it normal that the red charging led doesn't show up when I connect to the power supply ? I think it could be possible that the faulty button induces a problem like that but I would like your opinion about it.
Thanks.
I don't think the power button would affect the LED. A friend had a problem with the power button, but I don't think it cause any problems with the LED. I haven't noticed. But my friend would've noticed if there was any and would've told me, which wasn't the case.
I tested with the GOOD multimeter and it happens what it is showed in the video you posted me in a previous post.
The button has 3 pins:
pin1
pin2
pin3
If I check for continuity between pin2 and pin3 there is, as it should be in a working button.
If I check for continuity between pin1 and pin2 there is, as it should NOT be in a working button.
Having continuity on both checks means the buttons is continuously pressed. So I guess you will have to change it.
Yeah, I know. I already ordered it. It will arrive on Friday.
What I was wondering is if this could give also the problem of the LED. What do you think?
I removed the button. I placed the battery in the phone. Put the charging cable. But nothing is happening. This looks strange to me because without button it should at least appear the battery icon. What could it be ?
Thanks
Maybe your phone bootloader is so old that it came to a situation where samsung's signing for this bootloader version has expired then ABOOT doesn't allow you to boot.
Just a suggestion and nothing else.
But this could be else used by samsung to force you update your phone.
minidiable said:
I removed the button. I placed the battery in the phone. Put the charging cable. But nothing is happening. This looks strange to me because without button it should at least appear the battery icon. What could it be ?
Thanks
Click to expand...
Click to collapse
Not if the circuit isn't complete. The button completes the circuit, which would explain the lack of any indicators.
Killnolife said:
Maybe your phone bootloader is so old that it came to a situation where samsung's signing for this bootloader version has expired then ABOOT doesn't allow you to boot.
Just a suggestion and nothing else.
But this could be else used by samsung to force you update your phone.
Click to expand...
Click to collapse
Why should be that ? My phone was working perfectly before and at some point the bootloader is not good anymore. Anyway thanks for the hint
Strephon Alkhalikoi said:
Not if the circuit isn't complete. The button completes the circuit, which would explain the lack of any indicators.
Click to expand...
Click to collapse
Ok. Thanks . This still gives me some hope. I will wait for the button and come back here soon.
Thanks a lot for your amazing help.
This community rocks

S4 i9500 dead without reason

Dad's S4 i9500 suddenly died.
Won't turn on at all. No recovery mode, nothing.
No damage, phone is immaculate.
Was not dropped, nothing.
Phone will not charge and screen that shows charge when charging shows nothing.
Any ideas, anyone?
kez3 said:
Dad's S4 i9500 suddenly died.
Won't turn on at all. No recovery mode, nothing.
No damage, phone is immaculate.
Was not dropped, nothing.
Phone will not charge and screen that shows charge when charging shows nothing.
Any ideas, anyone?
Click to expand...
Click to collapse
Double check your power supply and your usb cable. Probably the battery is totally empty and will not been charged...
I keep a few spare batteries on me that are always fully charged. We have tried a couple of those in Dad's phone, then put them in my phone to check they had charge. They had 100% charge.
The phone was still 100% dead with the 100% charge batteries in them.
I have replaced the charging port ribbon last night in case this was causing a short.
The new ribbon made no difference; still 100% dead. Nothing at all. No sign of life at all.
I'm thinking the on/off button or the power IC.
Of course it may be something else.
Your thoughts?
Thanks
It can be the power button has gone faulty it happened to me before try smacking the power button couple of times to see if it makes any difference i pushed mine against a desk a couple of times and it worked after that i installed a shake lock app so i don't need to press the power button anymore unless i need to turn on/off the device.
#Runn3r said:
It can be the power button has gone faulty it happened to me before try smacking the power button couple of times to see if it makes any difference i pushed mine against a desk a couple of times and it worked after that i installed a shake lock app so i don't need to press the power button anymore unless i need to turn on/off the device.
Click to expand...
Click to collapse
I put a ohm meter across the on/ off switch this evening.
I get infinite resistance when it is not pressed, and finite/ no resistance when button is pushed.
So the switch is working perfectly and it's definitely not the on/off switch.
Any other ideas?
guess your motherboard is x_x then
Yes seems to be the board.
What's the best way to work out what's wrong with it/ get it fixed.
Anyone know the most likely cause/ who does, or how to do such trouble shooting analysis.

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