Is there any software or commands I could use to diagnose my phone over USB? The screen is black, even during boot (no logos), but the phone is still working in the background. The notification LED blinks normally, menu and back button lights up when pressed, and it even rings when someone calls, though I can't see who it is b/c of the black screen. The screen is not cracked or damaged, and I didn't drop it, so not sure why this is happening. I want to test the GPU or other components before I put down a lot of money for a new screen and it no resolve the issue.
Phone is a rooted SM-N910V that has been working great for 3 months.
Thank you!
Modify_inc said:
Is there any software or commands I could use to diagnose my phone over USB? The screen is black, even during boot (no logos), but the phone is still working in the background. The notification LED blinks normally, menu and back button lights up when pressed, and it even rings when someone calls, though I can't see who it is b/c of the black screen. The screen is not cracked or damaged, and I didn't drop it, so not sure why this is happening. I want to test the GPU or other components before I put down a lot of money for a new screen and it no resolve the issue.
Phone is a rooted SM-N910V that has been working great for 3 months.
Thank you!
Click to expand...
Click to collapse
Hi , try with key kombination .
1. Make sure your phone is OFF
2.Now Press toghether Vol + and power button and hold like that until second vibration (reboot)
3. If that doesn't work try with another combination .
Vol - and Power button
Vol + & Home button & Power button for about 10 second
Vol - & Home button & Power button for about 10 second
Good Luck
Teddy Lo said:
Hi , try with key kombination .
1. Make sure your phone is OFF
2.Now Press toghether Vol + and power button and hold like that until second vibration (reboot)
3. If that doesn't work try with another combination .
Vol - and Power button
Vol + & Home button & Power button for about 10 second
Vol - & Home button & Power button for about 10 second
Good Luck
Click to expand...
Click to collapse
Thanks for the suggestions, though I have already tried all those plus other things.
I've left the battery out for over a day, removed sim card, held power button in to drain any residue power.
I'm lost as to why all of sudden the black screen. Hoping there's a way to test the phone to confirm if its the lcd or something else like the gpu chip. On a laptop you could plug a monitor in the vga port, don't guess phones have this option
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Modify_inc said:
Thanks for the suggestions, though I have already tried all those plus other things.
I've left the battery out for over a day, removed sim card, held power button in to drain any residue power.
I'm lost as to why all of sudden the black screen. Hoping there's a way to test the phone to confirm if its the lcd or something else like the gpu chip. On a laptop you could plug a monitor in the vga port, don't guess phones have this option
Sent from my SAMSUNG-SGH-I337 using Tapatalk
Click to expand...
Click to collapse
I read that the phone was rooted so maybe that custom rom has some bug and that way you get black screen .
Try to flash him back to stock firmware and see if the problem is solved .
It is just rooted on the standard firmware, I didn't install any custom firmwares. But I was wondering if I could possibly reflash it from a backup I made with twrp. I cant get to recovery, well actually I could if I new the exact steps since everything works, I just cant see crap.
Is this even possible or is there another way to access twrp over the usb?
Sent from my [device_name] using XDA-Developers Legacy app
Related
My issue is as stated as above. I presume my phone has this feature disabled, making this phone near useless for me.
Tried having phone completely off and holding down volume down + home + power like in the videos, to no avail.
I've come from a Galaxy 3 which automatically started up download mode during the boot sequence.
Is there a way to root my phone without Odin or enter download mode with another method? Can't use "reboot download" in terminal as it's not rooted.
I haven't found any topics quite like my issue here. My phone is a international Galaxy III with label being exactly I9300. Any help is appreciated.
You could buy usb jig that will sort it iv never heard of this issue ever
Sent from my GT-I9300 using xda app-developers app
Interesting, atleast there's something to fall back on if there are no other solutions.
Postage to New Zealand would be horrendous.
Please confirm it doesn't work in the following order.
- Make sure you have no case on the phone.
- Power off the phone
- Unplug it from the charger
- Remove the battery for 30 seconds
- Press and hold Volume-Down and center hardware button.
Make sure both buttons are proplery pressed, and the center button is pressed in the middle.
- Press the power button, and release it when the logo appears. Keep the other 2 buttons pressed
- Wait for it to boot
If it doesn't work, try repeating 2 times starting at the top.
If it still doesn't work something is faulty. Check if all the buttons work as expected.
Thank you very much d4fseeker, the battery out was the crucial thing I was doing wrong.
It shouldn't be necessary (and usually isn't) but I've seen on multiple occasions that Samsung phones sometimes don't react to the Download mode or Recovery mode when normally powered down.
Pretty sure I overheated the phone last night, and now the power button doesn't work. I fell asleep with it in my pocket, I got a call from my wife early in the AM, after the call I found the screen wouldn't turn off. So today, I've tried an app or two to replace the power button, tried a 3 hour battery pull, and in a brief instance of idiocy, decided to reboot into recovery to try and wipe everything and see if that would do anything - now I am stuck in CWM Recovery w/out any working power button so I cannot even exit. I've tried pulling the battery again and it just reboots into recovery.
Any tips on how to get it out? I want to pull my pictures and info, wipe the phone then sell it on ebay - What would I need to do?
if it is a custom recovery you can use ADB while booted into recovery.
adb pull /sdcard
Has anyone had a problem with just the power button not working at all anymore?
My SII had the problem recently that the power button just does not work, so I can no longer wake the phone up after the screen has shut off. I'm guessing it is a hardware problem because I even restored it all the way back to stock.
Does anyone know how hard it is to replace the button if it is bad?
I had my power button fail for several days on me (it has since started workign fine again tho). I was in a similar place but when pulling battery, my phone would reboot normally so i could at least use my phone while on the charger. I know that pulling battery, holding volume up/down and reinserting will boot you into recovery so i'm wondering if your volume button is messed up too? can you navigate up and down in recovery with the volume keys?
I had to get my button working to position myself to avoid the issue but I'm now pretty much power button free and running siyah kernel (touch recovery) and i use the Stweaks swipe to unlock feature, rootbox rom with a power menu toggle, and a lock screen widget so i don't have to use my power button at all. Again, i had to get my power button working to flash the kernel though maybe you can push the kernel with odin then you'll have the touch recovery to try wipes and resets with?
edit: here is a link of tearing down a 9100. I think our power button is the same- unfortunately it looks like you have to solder the new one in.
I couldn't find the part# for the i777 (or confirm if it's the same as the 9100) but the power button for the 9100 is KEY FPCB-POWER KEY(GT_9100) GH59-10916A and is about $5 online
here's a vid of the breakdown, he's replacing the screen but browses over the power/volume keys too.
http://www.youtube.com/watch?v=65pvAINg2ME
Hey guys wondering if anyone experienced the phone being basically bricked without actually unlocking, rooting or anything.
It has happened before one, just laying on the table and the phone turning off but it came back on after a while.
Today it occurred again but has not turned back on for two days. When charging the only light is the LED flashing constantly every second. If I hold the power button and volume up then the flashing of the LED changes pace to One long flash (1 sec) to two quicker flashing ones (.5 seconds). If I unplug it and plug the phone back, The LED flashing is back to the original constant pace.
When unplugged sometimes holding the power and volume up button initiates the LG logo and then turns off and then shows the logo once more and then turns off for good.
If I plug this into the computer, its like someone ejecting a usb and plugging it in like a maniac. I heard the connecting and disconnecting sounds from windows nonstop like as if its about to blow up.
I've tried holding the power button for a minute the same goes with different combinations with the volume buttons.
The only thing I haven't tried is opening the phone, kind of afraid I will mess it up. Any solutions?
djrish said:
Hey guys wondering if anyone experienced the phone being basically bricked without actually unlocking, rooting or anything.
It has happened before one, just laying on the table and the phone turning off but it came back on after a while.
Today it occurred again but has not turned back on for two days. When charging the only light is the LED flashing constantly every second. If I hold the power button and volume up then the flashing of the LED changes pace to One long flash (1 sec) to two quicker flashing ones (.5 seconds). If I unplug it and plug the phone back, The LED flashing is back to the original constant pace.
When unplugged sometimes holding the power and volume up button initiates the LG logo and then turns off and then shows the logo once more and then turns off for good.
If I plug this into the computer, its like someone ejecting a usb and plugging it in like a maniac. I heard the connecting and disconnecting sounds from windows nonstop like as if its about to blow up.
I've tried holding the power button for a minute the same goes with different combinations with the volume buttons.
The only thing I haven't tried is opening the phone, kind of afraid I will mess it up. Any solutions?
Click to expand...
Click to collapse
Never heard of this but I can throw a few suggestions out. Try unplugging, then holding both Volume buttons and the power button (All three) for about 10 seconds. Try different USB ports.
Try this if all else fails: Source: http://cellphoneforums.net/lg/t348484-perform-master-hard-reset-lg-optimus-g.html#axzz2YPtvkfDk
To Perform a Master Reset via Hardware
1. Turn off your device.
2. With the device turned off, press and hold the Volume Down key as well as the Home key at the same time.
3. While both the Volume Down key and the Home key are held down, press the Power button.
4. When the LG logo appears, release all the keys.
5. Scroll to and highlight wipe data/factory reset by pressing the Volume Down key. Then press the Power button.
6. Scroll to and highlight Yes – delete all user data by pressing the Volume Down key. Then press the Power button.
7. As soon as the wipe has been completed, press the Volume Down key to scroll to and select wipe cache partition. Press the Power button when ready.
8. As soon as the wipe has been completed, press the Power button to select reboot system now.
9. The master reset should now be successfully completed and your LG Optimus G should restart.
Tried three buttons, nothing yet..As for the hard reset the home button is touch screen so not sure if it would would for this device
djrish said:
Tried three buttons, nothing yet..As for the hard reset the home button is touch screen so not sure if it would would for this device
Click to expand...
Click to collapse
What is your computer reading it as?
Sent from my LG-E970 using xda app-developers app
I have no idea, when I plugged it in and check device manager, its constantly refreshing as its connecting and disconnecting the phone very fast. Is there another way to check
djrish said:
I have no idea, when I plugged it in and check device manager, its constantly refreshing as its connecting and disconnecting the phone very fast. Is there another way to check
Click to expand...
Click to collapse
Anyways, doesnt matter guys thanks for trying, decided to just go in att and buy a samsung s4
Hello,
I'm posting this for a friend, because his phone is "dead" and he is unable to post himself.
Earlier this year he brought a Galaxy SII from a second-hand phone shop, and it's worked fine up until now. He updated the ROM to the official 4.1.2 and since then it's had issues connecting to his home WiFi (unrelated, but it lead me to suspect the ROM) but it connects everywhere else. Then yesterday his phone just went blank and turned on again - the boot sound played at the touch buttons lit up for a moment and then faded as with a normal boot. But the screen was blank apart from several white spots, and a load of coloured pixels. I saw it myself today, and the colour of the pixels is random, although usually red or green, and the phone gets incredibly hot about a minute after turning on.
Is this a ROM fault, or could there be something more serious to it?
Just a shot in the dark, as I've never owned a Samsung, but could it be the "sudden death" bug that they allegedly have?
Thanks
Does it go to recovery? Factory reset. If not does it go to download mode?
andrewwright said:
Does it go to recovery? Factory reset. If not does it go to download mode?
Click to expand...
Click to collapse
I'm not sure - I think I managed to get it into the bootloader, but there's no way to tell because there is nothing on the screen but the white dots and random pixels. All I did notice was that when I removed the battery and turned it on again even more pixels appeared. We only went by the sound and touch lights, so it appeared to boot, but we don't even know if it switched straight off again
HTCLittleMonster said:
I'm not sure - I think I managed to get it into the bootloader, but there's no way to tell because there is nothing on the screen but the white dots and random pixels. All I did notice was that when I removed the battery and turned it on again even more pixels appeared. We only went by the sound and touch lights, so it appeared to boot, but we don't even know if it switched straight off again
Click to expand...
Click to collapse
you are not sure ? did you try to go into recovery or download mode ? shutdown the phone first
Recovery = Volume up button + Home button + Power button
Download mode = Volume down button + Home button + Power button
Press vol+and home button and power button till it boots to recovery. Keep them all pressed down till it boots. If not try vol- home and power till it boots to download mode. Has he dropped it?
StressSyndrom said:
you are not sure ? did you try to go into recovery or download mode ? shutdown the phone first
Recovery = Volume up button + Home button + Power button
Download mode = Volume down button + Home button + Power button
Click to expand...
Click to collapse
We tried that, and the touch lights came on but with no boot sound. The screen didn't change, just white dots and pixels, but it was working fine the day before.
andrewwright said:
Press vol+and home button and power button till it boots to recovery. Keep them all pressed down till it boots. If not try vol- home and power till it boots to download mode. Has he dropped it?
Click to expand...
Click to collapse
Tried both, the screen just did the same thing and the phone got very hot very fast, and he said he hasn't dropped it at all, but that someone in his family may have, he's not totally sure because nobody admitted to using his phone.
Screen is prob broken. Pixels on it..not good. No recovery or download mode..really bad. For it too get really hot really fast may be a mb problem. Send it to service centre
andrewwright said:
Screen is prob broken. Pixels on it..not good. No recovery or download mode..really bad. For it too get really hot really fast may be a mb problem. Send it to service centre
Click to expand...
Click to collapse
Okay, thank you! He tried calling them and getting a quote, but the guy on the other end didn't seem to know what to do, and the man who owned the shop he brought it from offered to repair it, but for almost double what it cost him to buy the phone.
Thank you!
No problem mate. Get a second hand one. Prob be cheaper to do that now the s4 is out. Mb cost alot.
HTCLittleMonster said:
We tried that, and the touch lights came on but with no boot sound. The screen didn't change, just white dots and pixels, but it was working fine the day before.
Click to expand...
Click to collapse
please remove the battery for like 10 minutes, wait a little bit, then try to go into recovery or download mode,
if that doesn't work, try this:
1.Press the key combination for recovery
2.Samsung logo appears - hold the buttons pressed.
3.Prompt disappears shortly - you still hold the buttons.
4.Samsung logo appears again - hold the buttons still pressed.
5.Count to 3 & let go, dont press the buttons anymore.
After 1 - 2 sec farther the Samsung logo disappears and the recovery starts maybe, i did that on my old i9100
StressSyndrom said:
please remove the battery for like 10 minutes, wait a little bit, then try to go into recovery or download mode,
if that doesn't work, try this:
1.Press the key combination for recovery
2.Samsung logo appears - hold the buttons pressed.
3.Prompt disappears shortly - you still hold the buttons.
4.Samsung logo appears again - hold the buttons still pressed.
5.Count to 3 & let go, dont press the buttons anymore.
After 1 - 2 sec farther the Samsung logo disappears and the recovery starts maybe, i did that on my old i9100
Click to expand...
Click to collapse
Thank you, but that hasn't had any effect. Still a blank screen with white dots and thousands of coloured pixels. Thank you for all of your help though!
Hey,
I got 2 X Galaxy S3 I9300,
and they both stuck on bootloop, I can enter download mode but after 2 sec it's bootloop again and i cant change rom,
I try to enter recovery mode and it's dont work, it's show me the samsung logo and again bootloop,
i tried to remove the battery and put it back and the phone turn on alone,
It's mean that i need to replace the power botton?
Any solution?
Thank you.
That could well be your problem, a stuck power button.
I've never once seen a galaxy s phone that gets to download mode and then reboots.
I'm fairly certain that's your problem. Get a new power button from eBay.
Meantime, if you're confident working with electronics, you could disconnect the power button and manually make the contact yourself to double check that it's the problem. But if you're not confident doing that, then just order and get a new button fitted.
Edit: Do this to check if the power button is stuck... Take battery out. Hold volume down and home only. Put battery in. If the phone goes to download mode then your power button is obviously stuck.
Sent from my GT-I9300 using Tapatalk
I did what you said,
I didnt press the power botton , only the home and voulme down and it's get in to download mode,
I will order 2 X Power botton from eBay,
I saw in youtube that i need to soldering iron to change the power botton,
It's correct?
yoelb00 said:
I did what you said,
I didnt press the power botton , only the home and voulme down and it's get in to download mode,
I will order 2 X Power botton from eBay,
I saw in youtube that i need to soldering iron to change the power botton,
It's correct?
Click to expand...
Click to collapse
You'd need to check a teardown video on YouTube. I've changed power buttons on s1 and s2, but not on an s3 yet.
Sent from my GT-I9300 using Tapatalk
I replace the power button and it's works,
Thank you.