[Q] Faulty circuit, where do I look? - Galaxy Note II Q&A, Help & Troubleshooting

Hi All,
I dropped my handset the other evening (N7105) and something is now clearly broken in that if I jostle the phone it simply turns off. Not powers down, but simply turns off as if the battery has been pulled. I then need to jostle it some more before the power button will turn it back on--clearly not a very practical state to be operating in.
I'm hoping I can simply track down which module has the break in it and I'll replace it, but I am not familiar enough with this device to even know where to start. Anyone here have any ideas how I might go about this?
Thanks in advance for any and all help!

Related

urgent problem with a replacement BA

i just got a replacement sx66 for the one with a snipped wire that powered the screen, when i put my battery in there MS voicecommand says 58%, when i put the battery in the replacement, i get nothing, and when i charge itit is just staying red, no sign of turning on and i tried every button,is there any spesific way of turning it on for the first time? or can the defective one be reading the power differently due to the much reduced power loads it is under by not powering the screen and keyboard making the battery not really 58%?
sounds crazy but i want to know what to do because i really dont want to take whatever is going to happen with this phone idley. please whomever read this please help

Smashed Dash - Won't Power on - Help! Need Data Recovery!

So my phone fell out of my car in my driveway and apparently I ran it over when I backed out, now it won't power on and the screen is broken.
I've replaced the device, but I'd really really like to get the data off my old phone. The battery is still good, as I've put it in my new phone and it works fine. When I plug in the run over phone, the LED for charging doesn't come on, and when I press the power button, it doesn't turn on.
When I got home and realized that I ran over the phone, the home screen was still a little visible on the cracked screen, and frozen, so like an idiot, I yanked the battery in hopes that it would still power on, but it won't.
If I could just get it to power on and plug into my computer so I can get my data off it.
Any ideas?
Thanks in advance.
So Activesync doesn't kick on when you connect the phone to the computer?
If no sign of life is visible, and your data is absolutely crucial, then the only thing to try would be to buy a phone that you can take apart, and replace if with the guts of your phone. As long as the main board was not damaged, the memory should still be intact. Try eBay or Craigslist for a phone someone is selling for parts (like one with a broken screen or something, but which still makes and receives calls).
Good luck.
Most likely you will not be able to do that anything man sorry...

[Q] mainboard question for the phone

Can anyone tell me if there is any power points(both power and ground) that can be easily accessible without pulling the mainboard completely out of the phone. that can be used as pwr points for charging? if anyone can help with a pic or sumthing i would highly appreciate it.

Is my phone gone? Doesn't turn on, but vibrates

Hello all,
I have an S3, T-Mobile (T999). Yesterday while I was using it, it turned off by itself and now refuses to turn on. I have tried two different batteries and all it does is vibrates when I take the battery out and put it back in. I cannot get into recovery.
It was rooted and I had the PacMan ROM on it. To make things worse, the mcro-USB port is not functioning so plugging in into the computer doesn't do anything (I was using Anker wall-charging batteries to charge the phone).
Is my phone bricked somehow? Any troubleshooting tips?
Does it do anything other than vibrate? Does it sound like it comes on but the screen is just dead? Do you see anything happen on the screen? Unfortunately, without a functioning usb jack, theres not a lot you can do. Cant even flash the stock firmware....Only other thing you can try that I can think of is to find another S3 and swap the motherboards to test on a known good device.
DocHoliday77 said:
Does it do anything other than vibrate? Does it sound like it comes on but the screen is just dead? Do you see anything happen on the screen? Unfortunately, without a functioning usb jack, theres not a lot you can do. Cant even flash the stock firmware....Only other thing you can try that I can think of is to find another S3 and swap the motherboards to test on a known good device.
Click to expand...
Click to collapse
Thanks for the reply DocHoliday. Today, after charging my Anker battery, it vibrated as usual but then I saw the Galaxy logo appear on the screen, but then it went away and the phone died again, so the screen is functioning.
I wonder if it is a battery problem; however, I have tried two different Anker batteries. I might try to find a stock S3 battery and try again. Will keep this thread updated.
M3GAPL3X said:
Thanks for the reply DocHoliday. Today, after charging my Anker battery, it vibrated as usual but then I saw the Galaxy logo appear on the screen, but then it went away and the phone died again, so the screen is functioning.
I wonder if it is a battery problem; however, I have tried two different Anker batteries. I might try to find a stock S3 battery and try again. Will keep this thread updated.
Click to expand...
Click to collapse
Does it try to turn on on its own when you put the battery in? If so it may be a power button issue. Either way, you might want to take it apart and make sure the button appears ok, and also check/reseat all ribbon connectors. Kinda doubtful its a battery issue, but I guess it is possible.
Did you try to go download mode or to the recovery (What ever u have)????...Just to know the reaction of the phone.If u can then is not hardware related
DocHoliday77 said:
Does it try to turn on on its own when you put the battery in? If so it may be a power button issue. Either way, you might want to take it apart and make sure the button appears ok, and also check/reseat all ribbon connectors. Kinda doubtful its a battery issue, but I guess it is possible.
Click to expand...
Click to collapse
DocHoliday77,
I opened up the phone yesterday. The power button has no ribbon on it. It's connected to a simple surface mount push button. I tried pushing the button with the screw driver to rule out the actual button not making the proper contact, but it still wouldn't turn on. It still vibrates when I put in the Anker battery though.I think what I'll do today is test the voltage on the battery before putting it into the phone to make sure its not dead. Unfortunately, I could not find the stock battery that came with the phone.
M3GAPL3X said:
DocHoliday77,
I opened up the phone yesterday. The power button has no ribbon on it. It's connected to a simple surface mount push button. I tried pushing the button with the screw driver to rule out the actual button not making the proper contact, but it still wouldn't turn on. It still vibrates when I put in the Anker battery though.I think what I'll do today is test the voltage on the battery before putting it into the phone to make sure its not dead. Unfortunately, I could not find the stock battery that came with the phone.
Click to expand...
Click to collapse
I know the button has no cable attached, I meant for you to unplug and reseat all ribbon cables that are there. I think there are 3 or 4....maybe 5. There are disassembly vids you can reference though. As for the power button, it has been known to go bad. We've had it reported quite a few times around here in the past several months. Sometimes just jiggling it, or messing with it a little seems to help, otherwise itd have to be replaced. If you put the battery in, and the phone tries to power on without you pressing power, this is most likely the problem. From what you have said though, I doubt this is your issue. It could simply be memory going bad as well. I have seen a few reports of this. Unfortunately, short of replacing the motherboard, there is no fix for this.
Im, not saying that is the problem btw. Just a possibility.
DocHoliday77 said:
I know the button has no cable attached, I meant for you to unplug and reseat all ribbon cables that are there. I think there are 3 or 4....maybe 5. There are disassembly vids you can reference though. As for the power button, it has been known to go bad. We've had it reported quite a few times around here in the past several months. Sometimes just jiggling it, or messing with it a little seems to help, otherwise itd have to be replaced. If you put the battery in, and the phone tries to power on without you pressing power, this is most likely the problem. From what you have said though, I doubt this is your issue. It could simply be memory going bad as well. I have seen a few reports of this. Unfortunately, short of replacing the motherboard, there is no fix for this.
Im, not saying that is the problem btw. Just a possibility.
Click to expand...
Click to collapse
I ordered a replacement button today. It would be another 'low-hanging fruit' possibility and it was only $3 for the button on eBay. I'll de-solder the old one off and solder the new one on. Will update this thread after doing so. It is a mechanical button, so I agree, it could have messed up some how.
hey even i have nokia x it doent on doesnt vibrate just like total dead what should i do batery is ok some problem while flashing it with me
Update Please
M3GAPL3X said:
I ordered a replacement button today. It would be another 'low-hanging fruit' possibility and it was only $3 for the button on eBay. I'll de-solder the old one off and solder the new one on. Will update this thread after doing so. It is a mechanical button, so I agree, it could have messed up some how.
Click to expand...
Click to collapse
Hi. I have the exact same problem as you had, so I was wondering whether or not this worked?

[Q] Samsung won't turn on with battery

I'm not sure what caused this, but I am confident it's because I dropped my Samsung Galaxy S3 a lot. So here's what happens, whenever I drop my phone it seems to not work for a while. Then after a long wait (maybe 30-1 hour) it turns on again. I am pretty young so I don't know how to work with these kind of things. But continuing on... I know that my phone isn't done for because, whenever I take out my battery and plug in my charger, the little red light appears at the top left, but whenever I try to put in my battery and hold down the power button for a long time, it never works. Please, someone help me with this. Thank you.
Get a new battery.

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