My Note 4 (N910F) wasn't recording media-audio, none of the voice-call apps worked, recording video or audio didn't record anything. Regular calls on the cell network worked flawless though!
So i decided to open it up and see if maybe anything got wet. I cleaned some dust carefully with pressured air and some soft cotton buds for the contact points and put it back together again.
Now the device won't start at all anymore.
I can connect the charger on USB and it does show that it's charging and almost full and i can push the menu button to get that screen again after it turns black.
I can connect it to a PC, it detects the device as well.
What i can not do however is turn it on with the power button. Nor does it show the charging screen when i press it shortly.
I suspected there's something off with the switch so i measured it.
Pin 3 and 4 are shorted by default (vibrator motor i assume). Pin 1 and 2 short when i push the button. So that seems to be as it is supposed to be as well.
I have no idea why it doesn't start or get the power-on signal.
Is there anything else i can measure or somehow i can force the device to start by connecting points on the back of the mainboard?
Any help would be appreciated.
Related
If I check in "Settings-System-Power-Advanced-On battery power" to turn my JAM off if it is not used for some time (e.g. 3 minutes), it goes off and then I can not turn it on. I tried to push/hold power button, nothing helped but soft reset. If I turn my JAM off manually by pushing power button I can turn it back on manually too. But after 3 or 4 times it acts just like it was turned off automatically, i.e. iregardless if I push or hold power or any button, LED flashes green and the phone does not turn on. The worst part of it is after I push Power button trying to turn my JAM on and LED indicator starts flashing green (and JAM still remains off) if somebody tries to call me he hears the signal as if my phone is ringing (not busy signal or "The number you dial is not available right now" etc.)
Does anybody know what the problem can be? I've got this problem even after hard reset with no third-party applications installed.
non functioning of on/off switch
Check the connectors of your battery on the inside of the JAM. I had the same problem and I found out that one of the connectors did not really "touch" the battery.
I checked it. The contacts on the battery look like they were scratched by contacts on the phone, so I'd think the connectors are in good contact. I even tried to put a small piece of paper between the battery and phone bodyon the left side to make sure it is really pushed to another side, it did not help either
JAM does not turn on after being turned off
Did anyone ever find out the answer to this??! I have the same problem with mine except it's a bit random - mostly doesn't turn back on again after an auto power off for a long(ish) period of time - like at night.
sounds like a possible fault is occurring. Best thing is to do a full backup of your system and then do a hard reset your device and see if the same thing is still happening. If it is, try the positioning of battery as suggested in earlier posts and if still happening, then a handheld service is required
I'm building a simple G1 based solution to track my car using the phone's GPS capabilities.
Basically, the desired solution is that the G1 is wired to the car's accessory power system, and when the car is either started or the key is in the accessory position, the phone will be turned on and report its GPS coordinates occasionally.
I have most of the pieces put together for this... A G1 running cyanogenmod 6.1, a hacked up car charger that I can wire directly to car power, and some preliminary test software.
My problem, is that the phone doesn't automatically power up when plugged in. The problem scenario will be something like:
1) Car turns off
2) Phone goes on battery power.
3) I go on vacation and don't drive the car for two weeks.
4) Phone battery dies at some point.
5) Restart the car.
6) Battery starts charging. Phone never turns on. GPS tracking does not resume.
Any ideas on how to work around number 6? I don't supposed there's a firmware mod or something that changes the power-on behavior?
All ideas (even crazy mechanical ones) are welcome.
-Paul B. Davis
This is just an idea, so don't read too far into this...
How willing are you to modify the phone?
Here's why:
Ok...When you push the power button, it completes a circuit, causing the phone to power on.
1. Mod the phone, with a relay. This relay would switch one time per power cycle. Allowing for a quick one time completion of the power circuit, forcing the phone to power on when the car does. ...Turn the car off, the relay clicks again, turning the phone off. (Set the power button to turn off when pressed instead of sleep.) ..You could also go as far as to use a software mod to have the phone start a macro when the power button is pushed. This macro saves current state of whatever is running, then powers off. there are paid apps to do this BTW.
2. Set this program you will be using to autostart with the phone.
Viola... Problem solved. ...Easier said than done, I know. Just a thought though. Great idea BTW.
G1 Car Phone Power
Easer said than done.
Is a bit of an understatement.
even takeing off the case and seting up a relay onto the on/off button would not be a very neat solution. As a ciruit connected simply to the on/off button would not know the current state of the phone .
Is it off yet? is it on yet.
And simply checking the charging current would not reliably tell you if the phone is on or off . So you would need to find a power pin on the processor tracks that is held to vcc when the phone is on.
Hope this gives you some ideas.
This turned out to be an interesting project (and a PITA). I'll post pics at some point before I permanently deploy.
What I ended up doing was sort of splitting the difference on the relay issue.
As you suggested, I ultimately could not find anything approaching a software/firmware based solution for power-up on charger connect. To solve this problem, I took the phone apart until I got to the front button panel, and soldered small leads to the two sides of the power switch.
This was a particularly harrowing solder job, because the power switch conductors are actually tiny copper plates sealed into a flexible film. To get at them you have to partially dissect the film, remove the top half of the power's membrane switch, and then solder to the tiny plates without melting the film.
Anyway, once the leads were in place, I reassembled the phone. This was also a slight PITA because the front panel is engineered with no free space and now has to accommodate the new leads coming off the power switch.
After reassembly, I found a cheap timed relay circuit board that trips its relay for a variable length of seconds or minutes, and then goes dormant until being de-energized and then re-energized. I wired the relay to the power leads in parallel with a momentary power switch, wired the relay circuit to car power, set the circuit to 10 seconds, and it worked perfectly. Phone turns on every time.
It's not entirely deterministic, but I'm OK with it. Realistically, when has your phone ever NOT turned on when you held down the power button for 10 seconds?
The other half of the project was to catch the charger disconnect (car turning off) and power down. This was far simpler to implement, as the phone is rooted and I have access to everything I need to shut off.
I created a simple BroadcastReceiver that catches ACTION_POWER_DISCONNECTED and runs this little block of code to turn off the device:
Code:
Process proc = Runtime.getRuntime().exec("su -");
java.io.OutputStream os = proc.getOutputStream();
os.write("reboot -p\n".getBytes());
os.flush();
os.close();
I haven't tested it extensively, but it seems to work as expected every time.
I could make this a little more deterministic by creating a service that watches the charger connected state and initiates a shutdown when it notices a state change to "disconnected," but it's not clear to me that a BroadcastReceiver is any more unreliable than a service that can be pushed out of memory.
I loaded it all up into a little plastic case, and it seems to work pretty well, so far.
-PBD
Sadly I couldn't resist and pop the back cover off as my screen was only slightly out,
Tightened the screws not too tight and put the cover back on,
Now few hours later the touchscreen started acting up,
Apps, browser all opening up on there own,
Couldn't even restart it it so held the power to switch off and on,
But now on startup the screen doesn't respond to any touch,
So can't unlock the screen or even shut it back down,
Holding the power button to switch off only restarts it...
Anyone know of a solution to fix this???
acid123 said:
Sadly I couldn't resist and pop the back cover off as my screen was only slightly out,
Tightened the screws not too tight and put the cover back on,
Now few hours later the touchscreen started acting up,
Apps, browser all opening up on there own,
Couldn't even restart it it so held the power to switch off and on,
But now on startup the screen doesn't respond to any touch,
So can't unlock the screen or even shut it back down,
Holding the power button to switch off only restarts it...
Anyone know of a solution to fix this???
Click to expand...
Click to collapse
You can use an OTG cable with a USB mouse or keyboard as a method of input.
Maybe you could pop the back cover off again and check to make sure that none of the connections are loose.
Sent from my Nexus 7 using xda app-developers app
Just waited for the battery to die out and now it seems to be working,
But still an lock up as before
Well it didn't last long already stopped working,
I just popped the back cover off didn't want to wait for the battery to die,
But soon as I pop the cover it it working fine,
Soon as the cover goes back on it starts acting up
That didn't last long,
Look like I'll have to send it back
Phone was working with no issues until the other day. I was viewing a web page and noticed the text didn't look quite right, it seemed to be shimmering. Then a bit later on switching to the camera app the screen was just a lot of green flashing lines, pressing home button worked and then starting the camera again it would either be the same or would work properly. Then later that evening after using the phone fine opening the s cover the screen would not come on but the menu and back buttons would light up, pressing the power button a couple of times would make the screen appear. Then that stopped working as well, and no even then back and menu buttons don't light up. the phone still seems to work as plugging in the headphones and pressing the button on them starts my music playing, but I can't get the screen to turn on at all.
The phone has never been dropped has been very well looked after and is immaculate , there are no scratches on the screen and I can't see any cracks (from a pressure break) either.
Any ideas?
this might sound like im trolling, but did you try turning it off and on again?
seriously, your screen is probably broken. send it to sammys customer service or whereever you bought your phone and let them check and/or repair it
Hi. I'm having an issue with my Verizon S5 where the screen turns on randomly, sometimes a few times a minute, for no apparent reason. Researching the issue, I found a lot of people said the reason they found was that the charge port was bent slightly and after bending it back it fixed the issue. They noticed the screen would behave when it was plugged in because all the connections were forced into their proper places by the charger. However, mine turns on and off regardless of whether or not it is plugged in. I downloaded Wakelock Detector to try to see if there were any apps forcing my screen to wake up but it only listed a couple apps and processes and, combined, they didn't come anywhere near the number of times my screen was woken up. Interestingly, the same day I noticed this problem, my home button also stopped working. It will not turn on the screen when off and it will not bring me to the home screen when the screen is on. I thought maybe it was occasionally functioning, causing my screen to turn on. However, I have never experienced the opposite issue; I have never been using my phone with the screen on and had it suddenly bring me to the home screen. Also, oddly my screen does not have this issue when I am playing music either through the speaker or via bluetooth. If I have music playing, the screen never turns on randomly. If I pause my music, the issue returns and my screen turns on randomly unless I resume my music.
The fact that it doesn't do it while playing music (either over bluetooth or through the speaker) means it must be a software issue rather than a hardware issue. The fact that my home button stopped working at the same time seems to make it seem like a hardware issue but maybe my home button not functioning and my screen turning on and off randomly are both part of the same software issue? I have attached a screenshot of my current version of Android and other details.
Thanks in advance for any help.
TaintedSpuds said:
Hi. I'm having an issue with my Verizon S5 where the screen turns on randomly, sometimes a few times a minute, for no apparent reason. Researching the issue, I found a lot of people said the reason they found was that the charge port was bent slightly and after bending it back it fixed the issue. They noticed the screen would behave when it was plugged in because all the connections were forced into their proper places by the charger. However, mine turns on and off regardless of whether or not it is plugged in. I downloaded Wakelock Detector to try to see if there were any apps forcing my screen to wake up but it only listed a couple apps and processes and, combined, they didn't come anywhere near the number of times my screen was woken up. Interestingly, the same day I noticed this problem, my home button also stopped working. It will not turn on the screen when off and it will not bring me to the home screen when the screen is on. I thought maybe it was occasionally functioning, causing my screen to turn on. However, I have never experienced the opposite issue; I have never been using my phone with the screen on and had it suddenly bring me to the home screen. Also, oddly my screen does not have this issue when I am playing music either through the speaker or via bluetooth. If I have music playing, the screen never turns on randomly. If I pause my music, the issue returns and my screen turns on randomly unless I resume my music.
The fact that it doesn't do it while playing music (either over bluetooth or through the speaker) means it must be a software issue rather than a hardware issue. The fact that my home button stopped working at the same time seems to make it seem like a hardware issue but maybe my home button not functioning and my screen turning on and off randomly are both part of the same software issue? I have attached a screenshot of my current version of Android and other details.
Thanks in advance for any help.
Click to expand...
Click to collapse
Generally, I'd recommend a factory reset just to make sure whether it is or not a software issue.
If the issue is not solved, return the phone.
Sent from my XT1068 using XDA Free mobile app
Solution Found
I was able to fix the problem so I thought I might as well share. I replaced the circuit board that goes under the home button (cost about 10 bucks lol). This is not the home button and cable itself. If you disassemble the S5 to the point where you can see the motherboard, the circuit board at the bottom with the charge port, capacitive buttons, and home button contact is the one I replaced. Hope this helps others with similar issues get working in the right direction. Be very careful disassembling your S5 if you decide to try this route.