s4 i9500 not start - Galaxy S 4 Q&A, Help & Troubleshooting

Guys I was yesterday turned off the phone, now turns and reaches the black background with logo of Samsung Galaxy S4, then restarts, will not let me enter recovery mode, and if I enter download mode, gives me the option of pressing button increase or decrease volume and pressing any of these resets and returns to the above.
*
What can I do?

Your power button may be stuck.

when pressed, it feels normal

luxox said:
when pressed, it feels normal
Click to expand...
Click to collapse
It just "feels" normal.
Try tapping it on a hard surface for a while..not too hard tapping though..
It should be fine. Happens with many here

could it be because the place you battery latches only

I just remove the phone to see if the buttons are locked, and there were none in this condition

I believe there are 3 connections on the motherboard for the power button. Do you have a multimeter to see if the power button circuits are constantly open or closed?

I opened it and pulled the internal button on and off and was constantly rebooting, I took a technical service and changed the internal button now works well; )

Related

[11 April][Q] Power Button Not Working

Power button does not respond at any point.
*EDIT:except after battery out for a long time, then power button WILL turn the phone on, but then continues to not function as per usual.
However, the phone automatically turns on as soon as the battery is placed in, so it's not dead at least.
Also can not get the phone to be recognised on either of two computers (one running Win 7 and the other Vista) always get "device has malfunctioned etc"
Have re-flashed a ROM from SD but same problem. If holding down the Vol Down on start up (putting the battery in) I can get to bootloader, hence the re-flash. But holding down both gets to the hard reset 'warning' screen, but it won't let me press Vol Up to actually do the hard reset.
All in all a frustrating problem which means I have to remove my battery to turn my phone off and have to use the option from Windows Menu to lock the device.
Any help with any of the problems is greatly appreciated.
Also Power Button mechanical function is still normal.
Many thanks.
Sounds like your end key has become faulty as well as your volume up button. Both of witch are common issues, especially the end button, but most peoples volume down button wears out first. This is do to the fact that the end/power key is in constant use from turning on and off the HD2 or from getting MAGLDR to pulled up a bootup for those running NAND Android. Also the volume keys take a lot of wear and tear from constant volume adjustment especially if you listen to alot of music on your HD2. Plus the volume ..down key takes extra wear and tear from being used to enter bootloader.
hello
hello vsem
Yes it does seem that way, however I have had teh battery out over night, when I put it back in this morning it DID NOT automatically initiate the boot sequence. But it did after I pressed the power button, so it must have read it to some extent?
Also when the phone is on I can change the volume up and down as per usual, its all a bit strange.
Any other way to initiate a hard reset other than that menu?
Thanks very much!
It seems you are having a hardware issue, try sending your device to the service centre.

Black Screen, 5 vibrates, and LED lights on

This phone just broke after 3 months of use. Since I brought it off of amazon as unlocked, I do not have warranty on phone. The phone was not dropped nor water-damaged. It was sitting on the table and suddenly experiencing problems with lag. I proceed to turn off and try to restart phone.
The phone does not boot when I press the power button.
What I've tried:
case 1: I removed SD card, removed battery and removed USB cord. Press power button for 10 seconds. Put back battery and press power button
result 1: LED light on. The phone vibrates 5 times. Remains in black screen
case 2: I called my phone number from another phone
result 2: Straight to voice mail. This indicates the software did not even boot up. Hardware display is not the issue here. Most likely a Software issue.
case 3: I hold volume down key and power key to attempt hard-reset
result 3: LED light on. The phone vibrates 5 times. Remains in black screen
Since I routinely backed up my phone data. Last time I've checked (~4 days ago), the SD card was not nearly full. It was approximately 25% used space.
PLEASE HELP!! YOUR HELP WILL BE APPRECIATED!
Are you able to access any of the service menu's such as bootloader or fastboot mode?
If your not aware what those are, there are many references in this forum for you to find information.
dustbyter said:
Are you able to access any of the service menu's such as bootloader or fastboot mode?
If your not aware what those are, there are many references in this forum for you to find information.
Click to expand...
Click to collapse
No. The screen was all black. But fortunately, the phone was able to turn on after some trial and error.
You remove the battery and USB cord. Then while pressing (and holding) the home button key, you put back in the battery and press the power button. To hard reset, you must press volume down key, home key, and power key at the same time.
Glad that you got your phone working!
Mine continues to remain dead
I had this problem a few months back at first i too thought the phone was dead - but it did make boot vibration noise - but the screen would always remain "black" but after some time and after going into a very dark room i was able to see that the screen was not black, but that the backlight went out on it -- after having my screen replaced the phone now works fine - think i was using cm7 at the time.. hope this might help
Thanks for this tip! I'll check on the phone I had as well. I got to get it back from my buddy.

Problem with A3 SM-A300FU

My A3 doesn't "wake up" from stand-by.
If I reset it keeping pressed power up button, it correctly reboots, I can see all boot process and it correctly reachs the starting home page.
If I keep touching screen, open apps, navigate from various menu all works fine. But when I leave it without pressing any button/screen for 10/15 sec (display power off delay) the screen correctly goes black, but there's no way to wake up it again although it seems working. The A3 "under" works because plugging to AC Adapter beeps the sound of charging in progress, PC (Kies or SmartSwitch) detect it correctly; only the screen remains black.
I already tried to wipe and even reflashed last firware with Odin but with no luck.
Is there anything else that I can try (except send it to repair center...)?
Thanks in adv
JYD
P.S. When I call It from another phone, it rings but the LCD remains black and doesn't respond clicking vol +, vol - and home buttons
P.S. 2 Thinks become "funny": Home button, vol + & vol - don't work at all. Power button powers off display, but long pressing it, doesn't pop up power off/reboot menu. Softkeys don't work.
Sounds like SoD. Try installing the app "Wake Lock" and choose the PARTIAL_WAKE_LOCK option.

Power button problem

Hi all,
I have accident on sea where one wave splashed a bag where my phone was. After small problems with "laggy" buttons everything went fine and my phone worked correctly except power button. It doesn't react. I couldn't even restart the phone. And when my battery was used I coudnt turn it on. I tried to press volume up + power button million times, or all 4 buttons, and somehow I manage to turn it on again while still I was on vacation. Few times I have entered Android recovery screen, and Power button worked perfectly there (I managed to press power button and select reboot device). And after the phone turn on power button would usually works few minutes and then it would died again.
I have installed software for simulation of power button and it worked ok. This morning somehow I decided to turn off my phone, and I couldn't even imagine what kind of problems I will have to turn it on again. Whole day I am trying to turn it on, but it doesn't react. When I pull in charger then it shows regularly battery status (70%). I am desperate :crying:
I am trying to google or find any solution how to bring it ON again without power button, but without success
Is there any way how could I turn Samsung galaxy S6 Edge Plus without power button?
And what you think, is this some kind of software problem, and maybe some factory reset or flashing might help? Or it is more likely hardware problem?
Many thanks in advance.
Can anyone help me?
I have just found this article which might help me:
How to turn ON Galaxy S6 without using the power button:
When the Galaxy S6 or Galaxy S6 Edge is turned off, press and hold the volume button for a few seconds.
While holding the volume button, connect the Galaxy to a computer using a USB cable.
Wait for your phone to boot to Download mode.
Then press down on the volume rocker to cancel the operation.
After the operation has canceled, the Galaxy will reboot and turn on.
You have successfully turned on the Galaxy S6 without using the power button.
source: http://recomhub.com/blog/how-to-turn-on-and-off-galaxy-s6-without-power-button/
But somehow this doesn't work for my phone? First I wasnt sure which volume button should be pressed, so I tried with both in all combinations and still cant get into Download mode.
But I am glad that samsung had created some workaround if power button is not working. THis used to work on older models I guess.
Is there anyone who might know the way how to turn on phone without power button?

galaxy s7 edge sm-G935F Black Screen Problem

Hello, some days ago my phone suddenly got black screen, the buttons light ON, it also vibrates, if i double press the home button it enter the camera because the shutter souns, led notification also lights, seems like everything work but the screen keeps black..
I tried sme of the method around the web:
Power button + volume down (FAILED)
Power button + volume up (FAILED)
Power button + volume down + Home (FAILED)
Power button + volume up + Home (FAILED)
Delete cache (FAILED)
Factory Reset (I THINK IT FAILED, IT WAS HARD TO ENTER TO RECOVERY AND SELECT FACTORY RESET SINCE THE SCREEN DOESNT TURN ON)
Anything else i could do to get my phone back working..
I cannot take it to customer center because i bought in USA and Im from Mexico
Thanks in advanced guys
renehd2 said:
Hello, some days ago my phone suddenly got black screen, the buttons light ON, it also vibrates, if i double press the home button it enter the camera because the shutter souns, led notification also lights, seems like everything work but the screen keeps black..
I tried sme of the method around the web:
Power button + volume down (FAILED)
Power button + volume up (FAILED)
Power button + volume down + Home (FAILED)
Power button + volume up + Home (FAILED)
Delete cache (FAILED)
Factory Reset (I THINK IT FAILED, IT WAS HARD TO ENTER TO RECOVERY AND SELECT FACTORY RESET SINCE THE SCREEN DOESNT TURN ON)
Anything else i could do to get my phone back working..
I cannot take it to customer center because i bought in USA and Im from Mexico
Thanks in advanced guys
Click to expand...
Click to collapse
Fast fast try to return it before Trump wins . He will build the wall you know... Jk...
For my opinion LCD has to be changed. Due drop or in your pocked from high pressure i think its gone ...
Since as you said phone is working you can take pictures or receive calls but screen is always black.
Can you see its black color or screen isn't turning at all.
Sent from my ONEPLUS A3003 using XDA-Developers mobile app
Mine started with green stripes allover the screen and few days later - "black screen"
Samsung change the whole unit.
But if lcd doesnt work so, it wont recognize when i press the screen, can it?
Anyone with this problem
cavags5 said:
Anyone with this problem
Click to expand...
Click to collapse
It's hardware issue.
https://forum.xda-developers.com/showpost.php?p=70499471&postcount=73
S7 Edge BSoD Extra Info. needed
Hi,
Phone: I have a Samsung Galaxy S7 Edge SM-G935FD
I was using my phone to send a txt (and at the same time I think I was receiving a text or call because the menu and back touch buttons were lit up) and all of a sudden the phone crashed as I tried to finish my text but the touch wasnt responding, then the backlight turned of like it does if the phone is not being used. But the strange thing was that the menu and back touch buttons stayed lit up (Solid).
I tried many methods to restart the phone:
Power button + volume down (FAILED)
Power button + volume up (FAILED)
Power button + volume down + Home (FAILED)
Power button + volume up + Home (FAILED)
So I thought I'll let the battery die and then recharge and hopefully the phone would automatically restart like normal, however the phone does not show sign of charging now.
So I tried to connect to the PC but it wasn't being recognized however when I press and hold the power button a sound of detecting a device sounds and then when I take my finger off the sound of detaching occurs. But I couldn't see anything happening, until I went into device manager, under "Other Devices" , "Exynos8890" appears which I know is the chipset.
This is as much as I know of the problem. How do I solve thins problem without trying to factory reset the phone and lose all my data?
PS: I didn't backup my photos (My baby children only copies) or Notes in NotePad, which has some very important info.

Categories

Resources