Power Button and Micro USB Problems - AT&T Samsung Galaxy S II SGH-I777

I just got this old phone from my friend after he upgraded. It's a solid phone but I'm having 2 issues.
1. The power button doesn't have the nice clicking feel to it. I opened the phone up and discovered the power button was one that I have not seen before. Is this button soldered onto the board? I would like to replace it myself, I have tried looking up power button fixes but was not able to find any results with this particular button type. It's usually the ribbon cable type deal with the flat disk contact kinda deal. Any idea where I can find some instructions and the buttons themselves?
2. I have a problem with the phone not powering down. After shutting the phone down the phone boots right back up or the screen shows the charging animation. Also the screen never goes into sleep mode it only goes into the dim mode. I looked up this problem and it seems to be a common one, a problem with the micro usb slot. I ordered the whole usb slot and the board its attached to. My question for this one is how difficult is the install?
Sent from my SGH-T989

I just replaced the screen one of my i777's. I followed this great guide my LE55ONS on YouTube. It was for I i9100, but they are almost the same phone. Along the way in the video he explains how to replace everything in the phone, including the microUSB board and flex cable, which if i remember was a pretty easy fix. As for the power button, i would try maybe putting a little piece of paper or cardboard or foam or something inside the phone right next to the button, that might make it more ferm when pushed.
Hope this helped.
Here's the link to the video :
tps://www.youtube.com/watch?v=65pvAINg2ME&feature=youtube_gdata_player
Sent from my SGH-I777 using xda premium

Thanks for the reply, yes I saw the video too, it was helpful but that dang power button is so mushy it feels horrible. A little update though I was able to fix the micro usb port by cleaning it with a brush then bending the pins towards the screen, it appears that over time the row of pins gets pushed too far down and shorts the assembly. Power problems fixed but not the power button. Only place I can find that even has the power button repair service is mobiletechvideos
Sent from my SGH-T989

You might want to check the forums for your device, as the hardware between the I777 and the T898 are very different.
http://forum.xda-developers.com/forumdisplay.php?f=1329

Related

Dropped my stock prime - Won't boot into recovery - Bricked?

Title says it all really. I dropped it, but it had the keyboard attached and closed, it didn't fall far. However, now it won't turn on at all. If I hold down the power button, it will vibrate for half a second after I hold it down for about 10 seconds, but it doesn't turn on. Nothing appears on the screen.
It's completely stock, not even rooted. Does anyone have ideas?
The LCD screen ribbon cable has mostly come loose. This happen to mine when my son accidentally dropped my prime. Easiest way to confirm this is if you have a micro HDMI cable. Just plug the tablet into a TV and see if you have a picture. If you do then it is the LCD ribbon cable. The battery sits right under the screen ribbon cable and all it takes it a drop and a shift movement of the battery and the cable becomes unplugged. Just take the back cover off the tablet using the updated videos on XDA on how to disassemble the tablet. I used a little pick and two credit cards. The back cover comes off pretty easy and it is real easy to do - REALLY EASY. You will then see the ribbon cable above the battery. Just plug it back in better and secure it with tape. Power on the tablet if you want to check your work. If it works then reverse the steps taken to open up the tablet and you are done. While your in there you can tighten up the "screen" screws if you have screen light bleed too. Hope this helps you.
tdang said:
The LCD screen ribbon cable has mostly come loose. This happen to mine when my son accidentally dropped my prime. Easiest way to confirm this is if you have a micro HDMI cable. Just plug the tablet into a TV and see if you have a picture. If you do then it is the LCD ribbon cable. The battery sits right under the screen ribbon cable and all it takes it a drop and a shift movement of the battery and the cable becomes unplugged. Just take the back cover off the tablet using the updated videos on XDA on how to disassemble the tablet. I used a little pick and two credit cards. The back cover comes off pretty easy and it is real easy to do - REALLY EASY. You will then see the ribbon cable above the battery. Just plug it back in better and secure it with tape. Power on the tablet if you want to check your work. If it works then reverse the steps taken to open up the tablet and you are done. While your in there you can tighten up the "screen" screws if you have screen light bleed too. Hope this helps you.
Click to expand...
Click to collapse
I think you are right! I plugged in the HDMI cable and got a signal.
Now I'm going to try and take it apart. Wish me luck...You don't happen to have a link to the guide you spoke of do you?
Thanks!
http://forum.xda-developers.com/showthread.php?t=1479664
This is the link (How to is disassemble your prime) I used. Worked like a charm to open the tablet up without destroying it up or marring it. Also look at the posts of replacing the screen. You can see the LCD ribbon cable in the pictures. Hope this helps.
tdang said:
http://forum.xda-developers.com/showthread.php?t=1479664
This is the link (How to is disassemble your prime) I used. Worked like a charm to open the tablet up without destroying it up or marring it. Also look at the posts of replacing the screen. You can see the LCD ribbon cable in the pictures. Hope this helps.
Click to expand...
Click to collapse
while you are in there, if you have poor wifi you may want to do this http://forum.xda-developers.com/showpost.php?p=29685066&postcount=1085
It's fixed. Thanks again for the help!
Awesome, dude. Easy as pie thanks to the people on XDA .
Wow! Good going. Your a happy camper! Long live XDA....hoera
Sent from my MK16i using xda app-developers app

Home button stopped working!! Help!!

I was working on my wife's note 2 last night, modifying the phone to use a wireless charging pad. Everything went fine and the phone charges correctly. However, now the large home button on the front of the phone quit working. It doesn't take you back to the home screen or bring up recent apps if you long press it. I've gone back into the phone and can't see any problems or disconnected wires. Another really odd thing.......when you plug in the micro USB cord the recent apps menu pops up!
Any help here is greatly appreciated!!
scheirere said:
I was working on my wife's note 2 last night, modifying the phone to use a wireless chatting pad. Everything went fine and the phone charges correctly. However, now the large home button on the front of the phone quit working. It doesn't take you back to the home screen or bring up recent apps if you long press it. I've gone back into the phone and can't see any problems or disconnected wires. Another really odd thing.......when you plug in the micro USB cord the recent apps menu pops up!
Any help here is greatly appreciated!!
Click to expand...
Click to collapse
Some more information would be helpful. First modifying a phone to use a wireless chatting pad ??? Why and what for. Second. Did you actually take the phone apart ("I was working on ..... ") ? Third it sounds like you have shorted out a cable. Plugging in the charger and activating the long press feature sounds too me like when you put the phone back together, the button was not seated corrected, and when you plug in the charger, the pressure from pushing it in is making the connection, or there is a short. Take the phone back part and make sure that the button is seated properly in the socket.
dragonstalker said:
Some more information would be helpful. First modifying a phone to use a wireless chatting pad ??? Why and what for. Second. Did you actually take the phone apart ("I was working on ..... ") ? Third it sounds like you have shorted out a cable. Plugging in the charger and activating the long press feature sounds too me like when you put the phone back together, the button was not seated corrected, and when you plug in the charger, the pressure from pushing it in is making the connection, or there is a short. Take the phone back part and make sure that the button is seated properly in the socket.
Click to expand...
Click to collapse
Doh..."chatting" pad. Darned auto correct. Should have read "charging" pad.
Anyhow, yes I had to take the phone apart to make the modification. It's not a complicated mod. I removed the bezel/backplate of the phone and made a 1cm x 1cm cutout to expose the wireless charging contact points. And the bezel/backplate comes off pretty easily after removing the 9 or so tiny screws. It just snaps off. There aren't any wires or anything attached to it. The home button is below another piece of plastic that I didn't have to mess with. However, I removed that piece of plastic this morning to see if anything appeared out of the ordinary there. Nothing to really see and the button is not even accessable yet.
I'm stumped. Any ideas or suggestions are welcome!!
scheirere said:
Doh..."chatting" pad. Darned auto correct. Should have read "charging" pad.
Anyhow, yes I had to take the phone apart to make the modification. It's not a complicated mod. I removed the bezel/backplate of the phone and made a 1cm x 1cm cutout to expose the wireless charging contact points. And the bezel/backplate comes off pretty easily after removing the 9 or so tiny screws. It just snaps off. There aren't any wires or anything attached to it. The home button is below another piece of plastic that I didn't have to mess with. However, I removed that piece of plastic this morning to see if anything appeared out of the ordinary there. Nothing to really see and the button is not even accessable yet.
I'm stumped. Any ideas or suggestions are welcome!!
Click to expand...
Click to collapse
I don't really know much about taking phones apart and whatnot, but for the time being just download the app "Button Savior". You are most likely aware of this app but this can just help for the short run. And as far as this goes, have you tried buying a new home button and installing that? It's quite clear that the mod is causing the issues, never heard of something like this. How easy would it be to revert the effects of the mod in the device itself?
Actually, I'd never heard of that app before! Thanks so much for suggesting it. I never would have thought there would be an app to do that. It did the trick until I can figure out what's going on with the physical button.
As far as the modification, it's really not anything complicated. Below is a link to the youtube video of what was done.
http://www.youtube.com/watch?v=f2I4D6D3jNc&hd=1
There was no actual modification to the electronics/boards. The mod is to remove the back plate/bezel (not the battery cover) from the phone and make a small cutout exposing the contacts for the wireless reciever, that are on the main board. For some reason the phones come from Samsung with the wireless contact point hidden. So there is nothing to reverse or undo. I have removed the wireless charging reciever pad, just in case it was causing a problem.
As for replacing the home button......I may go that route if I can find one. I'm not sure how to acess it, though. As you can see in the video, you don't actually expose the home button or anything to do with it.
scheirere said:
Actually, I'd never heard of that app before! Thanks so much for suggesting it. I never would have thought there would be an app to do that. It did the trick until I can figure out what's going on with the physical button.
As far as the modification, it's really not anything complicated. Below is a link to the youtube video of what was done.
http://www.youtube.com/watch?v=f2I4D6D3jNc&hd=1
There was no actual modification to the electronics/boards. The mod is to remove the back plate/bezel (not the battery cover) from the phone and make a small cutout exposing the contacts for the wireless reciever, that are on the main board. For some reason the phones come from Samsung with the wireless contact point hidden. So there is nothing to reverse or undo. I have removed the wireless charging reciever pad, just in case it was causing a problem.
As for replacing the home button......I may go that route if I can find one. I'm not sure how to acess it, though. As you can see in the video, you don't actually expose the home button or anything to do with it.
Click to expand...
Click to collapse
The contacts were hidden at the behest of the carriers most likely.
Sent from my SCH-I605 using XDA Premium HD app

LG Optimus G Power Button Help

So when I was replacing the screen and the frame on my phone I realized the power button had a flex cable, one gentle movement and now it broke. I was able to order a new one but it's been 3 weeks since I had the phone taken apart and I don't remember how the flex cable attaches to the frame so that the button can actually touch it? If somebody could pop off their case and take a picture and/or undo their power button and describe how it goes back together that would be great!
gabessdsp said:
So when I was replacing the screen and the frame on my phone I realized the power button had a flex cable, one gentle movement and now it broke. I was able to order a new one but it's been 3 weeks since I had the phone taken apart and I don't remember how the flex cable attaches to the frame so that the button can actually touch it? If somebody could pop off their case and take a picture and/or undo their power button and describe how it goes back together that would be great!
Click to expand...
Click to collapse
In my experience, the power flex cable is soldered to the motherboard usually. You may have either buy a soldering iron and do the most precise work you've ever done in your life or contact a phone store. Sorry if this wasn't helpful.

[Q] Power button not working

The power button on a samsung note 2 that I inherited fails to work. The phone was left outside and rained on so when I first got it the screen did not work and I thought it was going to be trash however after drying it out and properly cleaning it the device screen works now and it will turn on when plugged in. I have one of the dongles that forces the phone into recovery but the power button just plain does not work. I don't know what to do but I would like to be able to use this phone.
I've dismantled a few of these phones and once I ruined a power button while sliding the the tool past it to pop the case apart. The power button is part of another assembly but can be replaced. Any version of the phone (Sprint/ATT/etc) will use the same subassembly for the power button. If that is the problem, you can swap it out.
Otherwise, you may have corrosion issues. I have brought older "dumb" phones back by spraying the circuit boards w/electrowash cleaner, scrubbing w/a toothbrush, and blowing off with an air compressor. Be sure to remove all ribbon connectors and scrub both sides of the connector. Also: DON'T JUST SPRAY THE PHONE WITH THE BACK OFF! the electrowash will stay visible the display, so do this in a controlled manner.

Ways to on the phone with charging (HELP DEAD POWER BUTTON)

so my phone power button is sucks right now, and is very hard to press, i wonder if there is a way when my phone is dead, and by charging it will allow it to be turn on like an iphone! this helps alot, i dont care if i have to change anything as i am ready to take the risk if its possible!
The power button is easy to change and is very cheap. It's basically a flex cable and you cannot fix it. The copper switch is so thin that once you open it will break.
Here is a link where you can buy replacement flex
And you can find how to guide on youtube.
There was a trick to power on redmi note 2 with broken power button, maybe it works on RMN3 as well, but be careful with this method, you will have to reinsert the flex cable fast.
https://www.youtube.com/watch?v=U46rkLA1gDo
CeBits said:
The power button is easy to change and is very cheap. It's basically a flex cable and you cannot fix it. The copper switch is so thin that once you open it will break.
Here is a link where you can buy replacement flex
And you can find how to guide on youtube.
There was a trick to power on redmi note 2 with broken power button, maybe it works on RMN3 as well, but be careful with this method, you will have to reinsert the flex cable fast.
Click to expand...
Click to collapse
I see, is there anyway that I can just charge my phone to turn it on?

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