S4 not charging/ turning on - Galaxy S 4 Q&A, Help & Troubleshooting

hi there just had my screen replaced and now i cant seem to turn my phone on
if i unscrew the casing the motherboard moves slightly and the phone turns on, trying to put the casing back on is impossible without the phone turning off again?
any ideas of what i can do? all the plugs seem pretty tight and connected?
thanks

danay said:
hi there just had my screen replaced and now i cant seem to turn my phone on
if i unscrew the casing the motherboard moves slightly and the phone turns on, trying to put the casing back on is impossible without the phone turning off again?
any ideas of what i can do? all the plugs seem pretty tight and connected?
thanks
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Hi mate
Seem like the power button is jam or broken.....was it working before the display was replaced?

hi thanks for the reply,
yes it was all working ok, im not sure about the power button? it seems to work fine when in the right spot
https://www.youtube.com/watch?v=BvZNlsbWuEs

I'd go with the phone to a local repair shop and show them what happens.
Since it turns on when it's only in a certain position, it must me some faulty contacts.
When the screen was replaced they might have damaged something.
Was it done in a local repair store? If so, did you check the phone before accepting it back?

have you tried disconnecting front camera, ear-speaker or proximity/light sensor, camera or hardware button flex cable one by one, to check if problem persists? i believe thats may be connector related problem.

Related

sily screen wont work

i jus changed the housing on my xda mini now it starts but nothing is on the screen, i hear the sound and bottons light up... ive check connector is in firmly however ive accidently broken the connector lock, does it need the lock in place for it to work...
if not what else can i try
also my flashing status light isnt fashing although fone is on (screen still not on) i get a white flash now and then on screen... and sometimes weird back lines..?
helo????
anyone here?
It is important that the flat cable has a good contact with the connector. I also broke the lock but placed a thin rigid plastic to keep the flat cable pressed down and then some tape on top to keep it in place.
nah didnt fix it, ah well another door stop..
the ribbon myt b broken....i think u'll need to replace display and da touchscreen too
try looking at ribbon cable carefully !

HELP! Housing replaced, now orientation doesn't change when keyboard is opened!

I changed the entire housing on my Hermes as it was looking a little battered. All seemed ok but now when I slide the keyboard open the orientation stays in portrait mode. Also the keyboard light stays off. I've tested another keyboard pcb from an old broken hermes and the same problem persists.
Does ANYONE have any clue as to how I could fix this, or if it's even fixable. Not as bothered about the backlight....
Also my internal mic volume has gotten really low. I have to switch to loudspeaker unless i'm in a really quiet room!
there is a magnet in the housing that triggers a switch to swap the screen, did you swap it over?
It'll either be what beermonster65 said above, or possibly the ribbon connector which connects the screen to the mainboard isn't plugged in properly - I had that when I opened mine up to repair the sliders.
beermonster65 said:
there is a magnet in the housing that triggers a switch to swap the screen, did you swap it over?
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As far as I knew I switched over everything from the old housing. What does this magnet look like and where is it? If i've lost it is there a possible fix?
Thank you both for your responses so far.
Any news on the mic issue also?

Screen stopped working, only backlight after trying to fix vibrate

So I tried to do this: http://forum.xda-developers.com/showthread.php?t=376035
My screw was loose indeed. In fact is was so loose it fell out before I had opened it completely.
I tightened the screw, closed the cover, turned it on, and... nothing. Only the backlight of the screen, but the screen stays completely BLACK. Nothing. (I know the phone is working though, because if I hold the off button I'll hear the "boink" sound)
I tried this:
- With and without SIM card.
- With and without tightening the screw.
- With and without the power cord.
Mind you I have NEVER had this problem before.
What is going on here? Did I **** something up badly while opening this phone? If I did I am going to be super sad, so please, help me!
Anyone?
I basically have the same fault mate. My vibrator lock screw was loose and it made the phone rattle.
I opened it up and probably either tightened the screw up too much and killed something on the mainboard or 'pinched' the lcd flex ribbon ( rusty gold coloured thing- it plugs into the small white ribbon connector on the MB ) with the opening tool.
Anyway - the phone could take calls , it seems to be working ,although I have no display , and the keypad buttons are all lit up very brightly , what scuppered me was with the constant case opening I eventually managed to break the power microswitch off the MB and I now have to use the reset button to power the phone on.
I don't want to waste money buying a new lcd screen for a phone which might be terminally damaged due to a mainboard fault , anyone narrow these faults down more ?.
shameless bump.
BUMP !!
Im just fixing my LCD on my P3600 and have it in bits,
is the display connector definitely pushed all the way in?
Yeah m8 - AFAIK it is all the way in , I am certain that it is the flex ribbon connector that is broken.
For anyone else interested in this or that has the same problem - there is a program called ' my mobiler ' which can be found in the forum somewhere , using it will tell you all you need to know ;
i.e = if it is the phone itself that's broken , or it's a damaged display.

[Q] New screen not working after replacement

Hi all,
I had a touchscreen issue (sometimes not working) in my HD2 so I ordered a new fabric screen+lcd assemby. I replaced it very carefully but now when I plug new lcd it is not working. Phone is working, buttons, vibration, hear the sound when turning on but there is only backlight on display and just shows black screen. I am sure that display is ok because I tried to put old one (wich was still working before replacement) and it has same issue (backlight works but display is black). Can you give me some ideas what is wrong ????
damaged lcd ribbon connector on mainboard or ribbon not being inserted fully or latched securely
Ty booting to bootloader ...
Help
The flex cable is not attached correctly or the main board is broken and before you close your phone try it. If you can't do this give someone your phone and he will recover for you.
The problem is sloved. I dissasambled all phone and fix it once again and now it works. Anyway I got another problem of white screen on my second device. Did anybody find a solution for white screen ever????
wojcimierz said:
The problem is sloved. I dissasambled all phone and fix it once again and now it works. Anyway I got another problem of white screen on my second device. Did anybody find a solution for white screen ever????
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Have you tried turning phone on with volume down button pressed???
You should see 4 colors. Try this. I search for you.
http://forum.xda-developers.com/showthread.php?t=2263026
try with this link.
Yes I have read this before but I think that white screen problem is not sloved in this thread. But maybe I could be wrong.

Hardware problem?

I have samsung i9505 with broken screen after fall. I could hear phone booting, light at the front was working. I bought another full screen with frame and replaced the old screen. After replacement nothing changes, except for buttons at the bottom of the screen, they light after touch. What can be wrong? How to check this? Phone is identified by computer, I can look at all files.
It's possible the replacement screen is defective or the motherboard connection is loose or damaged.
audit13 said:
It's possible the replacement screen is defective or the motherboard connection is loose or damaged.
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Thanks for the reply! The screen was tested and it's working, i'm going to buy used motherboard to check it

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