Develop Bugs

[Q] GNexus Not Booting

Sorry if this question's been answered in another thread, I tried searching and couldn't find any question that exactly matched mine, or any response that solved the issue.
I purchased a used, unlocked Galaxy Nexus from ebay around a month or two ago, in near perfect condition -- this has been the first time I've had any problems with it. It's probably not applicable, but after the release of the dev preview for Ubuntu phone OS I rooted the phone and reinstalled the factory image "takju 4.2.2 (JDQ39)".
Anyway, a few hours ago I accidentally bumped my phone off of a counter in the kitchen onto the tile floor. I picked it up and looked it over, and noticed no visible damage whatsoever, although the plastic cover had been partially dislodged; however, the phone's screen was dark, and the phone was unresponsive. I took out the battery and replaced it, then held down the power button. The phone vibrated once, like it normally did when booting up, but the screen remained black and the phone unresponsive unless I removed and reinserted the cover again.
I've tried charging it, plugging it into my pc, removing both the battery pack and the SD card, taking the battery out and rebooting it while holding both power buttons down, but I still get no response (and my computer doesn't recognize the phone when I plug it in). After reading a post where someone had success reconnecting the display, I unscrewed and removed the casing, then disconnected and reconnected the display from the motherboard -- still nothing.
Is there anything else I can do, or is my phone beyond repair?

Did you check the other connections while you had the phone apart?

bodh said:
Did you check the other connections while you had the phone apart?
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I opened it up again and took pictures, but I'm not very knowledgeable about this sort of thing, so I can't tell if anything's wrong or not. Should I remove the motherboard to get a better look at the display?

You're talking about the back cover which became dislodged upon impact? I'd say you're lucky that the phone still gives that vibrate. But it seems there are so many things that could go wrong from an impact. Do you have fastboot? [I know you said you tried holding down both volume buttons and power, but try pressing them first then tapping power.] If you don't have fastboot, then your only options would be omapflash and odin. If these do not work, it's gonna be hardware. Maybe the display is gone, if you get the vibrate but see nothing..

[Q] Desire wont start up. The screen just keeps flashing.

So i went out on a night out and my battery went flat whilst i was out. I come to start it after charging it up and it just keeps popping up with the start up screen for a split second and then going off. It keeps doing this until i unplug the charger or take the battery out. I managed to get into the reboot screen and tried starting it from there to no avail. The battery is only a couple of months old so that should be good.
I took it to a phone repair shop and they said the board was gone and that there was nothing that could be done with it. Is this the case?
I don't generally turn it off just keep charging when it gets below 20% battery life. I did however install solitaire since i last powered it down if this might have any influence on the situation.

Check if you can get into the bootloader. Hold volume down and power.

Chromium_ said:
Check if you can get into the bootloader. Hold volume down and power.
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I have tried this but although it comes up with the bootloader screen it flashes off gain as with the boot up screen. It does not give you time to do anything in the bootloader.

mikeryan8878 said:
I have tried this but although it comes up with the bootloader screen it flashes off gain as with the boot up screen. It does not give you time to do anything in the bootloader.
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Are you sure the battery isnt completely dead? Did you drop the phone or do anything that may have caused this, or did it just suddenly occur?

Chromium_ said:
Are you sure the battery isnt completely dead? Did you drop the phone or do anything that may have caused this, or did it just suddenly occur?
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No i have charged and recharged it until the green light comes on. The chap at the shop tried another battery also and this had no effect on it.
I dont recall dropping it. It is in a substantial wallet holder so i would think that would take the brunt of the blow even if i had. But it worked fine all night until it powered down then it just started to play up.

Right while messing a bit further it seems to me that the on off button is constantly activating. If i just hold the return button it comes up with the reboot screen and allows me to choose the various options. If i hold the volume button the fastboot screen appears but disappears just as quickly. All of this happens with out me touching the on off button so it looks like it is constantly trying to start up. The button does not have any visible signs of damage. Is this a normal failure point for these phones?

If it charges completely while it's off, then the board should be fine. You can check the percentage in your recovery mode if you can get there.
If the board is fine, it either means that the button is stuck or you have some gunk short circuit in the button.
If it's gunk, you might get away with some rubbing alcohol, If it's in a spray can, even better. If it stuck, it should be opened and see what's keeping it pressed.
I hope this helps.
Sent from my HTC Desire

My galaxy will not turn on it just vibrates! Bricked?

Two weeks ago my galaxy just stopped working. it was at a decent battery; just stopped. I tried charging it but the phone would vibrate. phone would come on, then shut off. I tried it multiple times and same result; a few times the phone would make it to the samsung startup animation, sometimes it would just flash the samsung logo, once it compleley got to my screen start before shutting off.
I brought my phone to get fixed. It took a whole week and the guy said my phone was just not fixable. It would work for a few hours then shut off again, according to him. I suspect he didnt work much on it though as hed rather fix phones with easy problems as mine was a tough one.
I've had to replace my phone with an iphone now, but right now, out of curiosity, I completely took my phone apart, and started using tweezers to play the power on button. The camera part just broke off (not the actual camera) but now my phone is actually charging! The red light is on, and click the main button, it shows the battery being charged. This has not happened ever since the phone broke.
Am I bricked? Is there hope for this phone??? Please tell me there is lol.
EDIT: My phone seems to have restarted! Turned it on and it's asking for my simcard what is GOING ON LOL

Summertimes said:
Two weeks ago my galaxy just stopped working. it was at a decent battery; just stopped. I tried charging it but the phone would vibrate. phone would come on, then shut off. I tried it multiple times and same result; a few times the phone would make it to the samsung startup animation, sometimes it would just flash the samsung logo, once it compleley got to my screen start before shutting off.
I brought my phone to get fixed. It took a whole week and the guy said my phone was just not fixable. It would work for a few hours then shut off again, according to him. I suspect he didnt work much on it though as hed rather fix phones with easy problems as mine was a tough one.
I've had to replace my phone with an iphone now, but right now, out of curiosity, I completely took my phone apart, and started using tweezers to play the power on button. The camera part just broke off (not the actual camera) but now my phone is actually charging! The red light is on, and click the main button, it shows the battery being charged. This has not happened ever since the phone broke.
Am I bricked? Is there hope for this phone??? Please tell me there is lol.
EDIT: My phone seems to have restarted! Turned it on and it's asking for my simcard what is GOING ON LOL
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idont know what you did there, but it worked plus you gotta be more specific to how the phone broke and could not boot-up to screen

winosxbuntu said:
idont know what you did there, but it worked plus you gotta be more specific to how the phone broke and could not boot-up to screen
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It just randomly shut off. It was if someone would constantly be turning the phone off as soon as I turned it on. But then I couldn't even charge the phone. No red light, no screen, nothing, just vibration. I would try to turn it on sometimes it would get to the boot up, sometimes not, sometimes nothing, just a vibrate.
I literally took tweezers and lifted the green board out from around the power on button (it's an actual tiny white button on the inside). and then it randomly started working again

Summertimes said:
It just randomly shut off. It was if someone would constantly be turning the phone off as soon as I turned it on. But then I couldn't even charge the phone. No red light, no screen, nothing, just vibration. I would try to turn it on sometimes it would get to the boot up, sometimes not, sometimes nothing, just a vibrate.
I literally took tweezers and lifted the green board out from around the power on button (it's an actual tiny white button on the inside). and then it randomly started working again
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Could be a power button failure. Happens somewhat often.
Could be battery related too, a cheap replacement battery could strike that off.

polobunny said:
Could be a power button failure. Happens somewhat often.
Could be battery related too, a cheap replacement battery could strike that off.
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agree with what he said, it could be a problem with the power button or battery is not working
off topic did you really get 176Mb/s download or is it fake
if its real then was it WIFI or DATA , i have never topped 50Mb/s both wifi and data) but DATA seems to be 10x faster than my wifi

Lenovo p2 fallen in water...black screen

hi everyone
my phone was dropped in water.
when i checked it was still working but the screen starts to have like horizontal lines coming from down to up
. so i turned it off, dried it with a towel…
i restarted it later it started well…then it restarted with green and red English words as it it was programming or android installing updates or firmware lines.. hope you understand me...
so i turned it off again to disassembly well and dry it better…
the problem is now when i plug it to charge it, i can feel it vibe in repeat mode when i connect it... as if it was vibering, then wait then vibering...in loop
i tried a recovery mode but still nothing on screen…
my pc don't see it when i connect it…
doesn't smell good at all :crying:
and another problem...when i disassemblied it i think i break a little part of the nap where i connect the screen nap on it...at the top right…
you can see it on the picture i added…
i'll try to disassembly again to see if i can do something
thanks in advance for your advices and help
genesian

my mob also fell in water 9months ago...i didnt get any lines..,but i my self switched it off...later it didn't switched on shown black screen,only charging led works..that too different colors...so just kept it aside and after few hours magically switched On...

balugudidiot said:
my mob also fell in water 9months ago...i didnt get any lines..,but i my self switched it off...later it didn't switched on shown black screen,only charging led works..that too different colors...so just kept it aside and after few hours magically switched On...
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I juste Hope the little part i broke see the picturee won't Make it dead definitevely

Zuk Z2 water damaged . Acting weird.

Hi guys. My zuk z2 felt into water sadly. I tried to turn off but phone started acting weird. Screen started to on and off. I let the phone in rice like 2 days. So. I don't know what is the problem right now. When i hold power button like 7-8 seconds phone vibrates and notification led flashes like 0.5 second. And that's it. I don't know phone is on or off right now Because screen is not working. But when i try to charge my phone it comes little hot like always. So i guess phone is working but screen is not. I can't go to service center right now because of my personal problems. Can you tell me what is the real problem right now? Is phone really dead?

nonamesry said:
Hi guys. My zuk z2 felt into water sadly. I tried to turn off but phone started acting weird. Screen started to on and off. I let the phone in rice like 2 days. So. I don't know what is the problem right now. When i hold power button like 7-8 seconds phone vibrates and notification led flashes like 0.5 second. And that's it. I don't know phone is on or off right now Because screen is not working. But when i try to charge my phone it comes little hot like always. So i guess phone is working but screen is not. I can't go to service center right now because of my personal problems. Can you tell me what is the real problem right now? Is phone really dead?
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Connect phone to pc see if it is connected or not
If yes then open device manager see which port it is using reply here
If not,
Take it to a local phone repair shop have him check if there is any water residue in it.

JV Spartacus said:
Connect phone to pc see if it is connected or not
If yes then open device manager see which port it is using reply here
If not,
Take it to a local phone repair shop have him check if there is any water residue in it.
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nope. pc not recognized phone. I did tried 1 or 2 days ago it was saying " usb not recognized" but now nothing.

Led still flashes when i press power button twice. Or connect to charger, usb cable. I flashed oxygen os before water damaged. And that rom has brightness problems. Don't know the exactly problem now. I don't know why led is flashing or why my phone is not working anymore.

nonamesry said:
Led still flashes when i press power button twice. Or connect to charger, usb cable. I flashed oxygen os before water damaged. And that rom has brightness problems. Don't know the exactly problem now. I don't know why led is flashing or why my phone is not working anymore.
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Try to disconnect and connect the battery
And clean the connecter

Kruzzzkat said:
Try to disconnect and connect the battery
And clean the connecter
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I'll keep in my mind. I'm on travel right now sadly. I hope motherboard or screen is not dead yet.