Phone not booting after reassemby - Desire Q&A, Help & Troubleshooting

My phone got some water damage and stopped working, so I opened and cleaned it (alcohol).
Now after reassembling, it won't turn on at all (booted in hboot before).
The led works when connecting to charger, and even shows loading, but when I press power, the charging led just turns off and nothing happens (powering on without charger also fails).
I tried reassemblying again and made sure everythign was connected, but no change.
Any idea what else I could try?

Anyone?

Could've broke your screen connector..

bortak said:
Could've broke your screen connector..
Click to expand...
Click to collapse
But wouldn't the phone vibrate and the led flash on boot? (led definitely works when power is connected)

oh so it doesn't even vibrate? hmm. Maybe you disconnected your upper board from your lower board. Go on youtube and find the "Bravo disassembly video" or something like that, take it apart and put it back together again. I'd use latex gloves if I were you too btw.

Thanks, I'll give this a try.

Related

Universal Died while upgrading

hi
i was upgrading my universal, following instructions from http://wiki.xda-developers.com/index.php?pagename=Helmi
after upgrading, on my computer i received an error saying the upgrade was unsuccessful and now my universal is dead
i tried hard resetting, i tried putting it into bootloader mode...
there is nothing on the screen
what should i do?
have you ever entered BL before? most new users would not realise their in BL as it doesn't have any backlight. look closely
yes, i have, it isnt working at all, there is nothing on the screen
when i try to flash the device the pc says error 101 connection error
does your charge light appears when connected to AC power?
nope, no charge light
its sad just about 3 hours ago my device was working perfectly
here's what you do:
start activesync on your computer.
Go to connection settings and deselect allow usb connections.
connect your uni to your computer and push the backlight + on/off button and hold these. Then press the reset with your pen, still holding the backlight and on/off.
The screen should say something about serial or usb.
The backlight will not be lighted so it's hard to read.
If the screen doesn't say anything, unplug and plug in the usb connecter one more time.
Does your red charge led lit when you put it on the wallcharger ?
i tried that, many many times, screen still remains blank
nope, no red light when i plug it into the wall
this is bad, its not responding to anything
When plugged, does it give you a red blink (Charge light) when you Soft Reset?
yes!
yes, the first sign of life, when pluged in via usb to the pc, when i soft reset i get a red blink
any ideas?
Try holding down Light + power for at least 5sec. and while still pressing, do a soft reset.
If you dont go to BootLoader then try to increase the Hold down Light + Power some more.
And BTW. dont get stressed, keep cool.
Youl just **** it even more up if you get stressed, Ok
k, i just tried that, everytime i let go fo the soft reset button the pc says the usb device is not recognized, but still nothing on the screen
lol yeah ur right
thanks for the help
NP. now run the original upgrade for your device...your device is in boot loader right?
nope no bootloader, the screen is completely blank
sahir said:
nope no bootloader, the screen is completely blank
Click to expand...
Click to collapse
Look closely, it wont have backlight on, so look really closely.
Remove the SD card and Sim, and just keep trying different time intervals with the "holding down Light + power for at least 5sec. and while still pressing, do a soft reset."
And if you had low battery when you started the upgrade, the use your Wall charger, not USB charger...and let it stay in for 1/2 hour before proceding.
Keep us updated
i removed the sim and sd, and have tried many different intervals, i charged the device all night last night with teh wall charger, still no luck
Hmmmmm, this is a bit strange.
The exact same thing happend to me some 5 days ago.
I managed to get it back with this trick.
Try Soft Reset between every try....just hang in there suddently it wil come to life
Do a ATX-reset/Destat.
Remove charger, battery etc and push in on/off button for 30sec twice. Then push down as many keyboard buttons as you can for a little while too. This way you "drain" it and everything should be reset. Try again.
Works especially well on computers that don't wanna POST. Same thing with cellphones, TV's, remotes etc.
ATX-Reset/Destat. Remember that one. Can solve loads of glitches.
How do I know?
Don't ask I work with these kind of issues every day.
i just tried the atx reset destat idea, it didnt boot it up
ive tried many different intervals now, ive spent hours trying to get this to work
bosjo were u connected to the pc while trying to get it into bootloader?

Help: G3 doesn't power on - Only blue/green notification light blinks :(

The G3 just dropped down on the floor with the circle case. Then It was working some minutes apparently with no problem, until I myself turn the phone off and restart it. Then the device just didn't turn on. The only thing is that the screen is black and the led notification blinking green and blue
when i connect the charger, the red led blinks once and then disappears, then after 30 seconds the red led appears which apparently shows that the phone is charging the battery. Also When I connect the phone to the PC, a sound of connection is heard from PC but the PC doesn't complete the device recognition process as no new device is found.
I tried to make a hard reset, but nothing happens when I press the power and volume down keys. Tried some other tricks with the battery and the hard keys on the phone but no result at all, as the same story just repeats. Does anybody have a solution for the problem? This devise is the only android device I have
Help
Please Help :crying:
ashkaboos said:
The G3 just dropped down on the floor with the circle case. Then It was working some minutes apparently with no problem, until I myself turn the phone off and restart it. Then the device just didn't turn on. The only thing is that the screen is black and the led notification blinking green and blue
when i connect the charger, the red led blinks once and then disappears, then after 30 seconds the red led appears which apparently shows that the phone is charging the battery. Also When I connect the phone to the PC, a sound of connection is heard from PC but the PC doesn't complete the device recognition process as no new device is found.
I tried to make a hard reset, but nothing happens when I press the power and volume down keys. Tried some other tricks with the battery and the hard keys on the phone but no result at all, as the same story just repeats. Does anybody have a solution for the problem? This devise is the only android device I have
Click to expand...
Click to collapse
Did you do anything else after/during the time that the phone was off? And is there no possibility that you cracked the LCD digitizer? I mean it might sound strange but this is what I had with my old phone. I dropped it, nothing serious but then I put it in my pocket and upon taking it out I noticed the screen not turning on. As stated above, my digitizer was broken and multiple people told me that the digitizer had a small crack which I didn't notice, then when I put it in my pocket I put too much pressure on the digitizer cracking it. The LED-light did work though, and this sounds very similar so my advise going to the store and asking wether they know what the problem might be.
(Hopefully this was helpfull hehe)
ashkaboos said:
Please Help :crying:
Click to expand...
Click to collapse
If you Don't see the LG splash screen when pressing the power button it seems like a screen or digitizer problem for sure.
BUT;
after you try turning it "on" let it sit a few minutes and see if you can call your self or send a text to see if it makes noise vibrates etc. to confirm a screen problem.
OR
Also you can try putting it into download mode.
Battery pull (don't turn on)
plug USB into phone but not computer
Hold volume down AND then plug usb into computer
if this comes up to a pic of something on the phone it will be software related. to get out of this mode you can do a battery pull.
Remember to always read up on topics and things you are doing. There are guides here on XDA to help you out.
Hope you get your phone working
Neorpowa said:
Did you do anything else after/during the time that the phone was off? And is there no possibility that you cracked the LCD digitizer? I mean it might sound strange but this is what I had with my old phone. I dropped it, nothing serious but then I put it in my pocket and upon taking it out I noticed the screen not turning on. As stated above, my digitizer was broken and multiple people told me that the digitizer had a small crack which I didn't notice, then when I put it in my pocket I put too much pressure on the digitizer cracking it. The LED-light did work though, and this sounds very similar so my advise going to the store and asking wether they know what the problem might be.
(Hopefully this was helpfull hehe)
Click to expand...
Click to collapse
I didn't do anything special after/during the time the phone was off. I checked the screen very carefully under a lamp. No particular sign of crack. Thank you very much for sharing ur experience.:good:
Tweakecho said:
If you Don't see the LG splash screen when pressing the power button it seems like a screen or digitizer problem for sure.
BUT;
after you try turning it "on" let it sit a few minutes and see if you can call your self or send a text to see if it makes noise vibrates etc. to confirm a screen problem.
OR
Also you can try putting it into download mode.
Battery pull (don't turn on)
plug USB into phone but not computer
Hold volume down AND then plug usb into computer
if this comes up to a pic of something on the phone it will be software related. to get out of this mode you can do a battery pull.
Remember to always read up on topics and things you are doing. There are guides here on XDA to help you out.
Hope you get your phone working
Click to expand...
Click to collapse
I tried to put it into download mode, but no result at all as no connection could also be made between the phone and PC. Moreover, I tried to make a text/call, but nothing is received by the phone. Thank you very much for ur suggestions.
ashkaboos said:
I tried to put it into download mode, but no result at all as no connection could also be made between the phone and PC. Moreover, I tried to make a text/call, but nothing is received by the phone. Thank you very much for ur suggestions.
Click to expand...
Click to collapse
Seems like the drop damaged the memory and the phone can't reload it, you will have to bring it in
suljo94 said:
Seems like the drop damaged the memory and the phone can't reload it, you will have to bring it in
Click to expand...
Click to collapse
Yeah that's plausible ! I'd bring it in too
Hope you fix your phone fast
Yeah... Probably it's a hardware problem. Someone who checked the phone in order to fix it, said that the problem had been with the device board. Even though I was satisfied with the phone, I have found out that the G3 is a sensitive device, as the height of the table from which it dropped down wasn't too much. So always take care of your G3 phone.

[Q] Galaxy Tab S - LED Flashing - Won't turn on

Hi, was wondering if anyone else has/had similar issues?
Got the Galaxy Tab S today and was spending time setting it up. Connected to the PC and charge was at about 57%. Suddenly the window displaying tablet contents on the PC disappeared and the screen went black.
The power button didn't turn the screen back on. I held it down, thinking that it required a hard reset but nothing happened. I disconnected the tablet from my pc and went to use it's dedicated charger. The battery icon came up, stating it was 57% charge, and shortly after the LED light on the back of the tablet started flashing rapidly. I quickly took out the cable.
I've tried holding down the home key, volume down, and power button and nothing happens. I then tried the same and having a finger on the screen. Then I repeated the process again with the cable connected to the charger, and then computer.
No matter what I try, the device won't turn on and the LED keeps flashing repeatedly when connected with usb charging cable. I also tried using another cable.
I'm thinking of phoning up where I got it from tomorrow and asking for a replacement, unless there's something I'm missing here?
Any thoughts would be great, thanks.
My guess would be, you are not pressing the buttons correctly.
stkpxl said:
You try just Power+Vol Down?
Click to expand...
Click to collapse
I tried that just now. Nothing happens.
How about pressing power, vol up and down, home huttons at the same time for 1 minute
DUHAsianSKILLZ said:
How about pressing power, vol up and down, home huttons at the same time for 1 minute
Click to expand...
Click to collapse
That doesn't work either. The only response I get from the tablet is by plugging in the charging cable and then it goes on to display an epileptic inducing light show with the LED constantly flashing on and off
s2_d2 said:
That doesn't work either. The only response I get from the tablet is by plugging in the charging cable and then it goes on to display an epileptic inducing light show with the LED constantly flashing on and off
Click to expand...
Click to collapse
Never seen this problem before. Could be a bad partition making it not boot. Replacement may be your answer as its better to get a new one and be safe.
DUHAsianSKILLZ said:
Never seen this problem before. Could be a bad partition making it not boot. Replacement may be your answer as its better to get a new one and be safe.
Click to expand...
Click to collapse
I've used various tablets before and never encountered any of them not booting at all. The led flashing business is very weird. I'll phone up the store I got it from and ask if I can get a replacement.
Thanks for the responses

Screen stays on forever when the charger is either plugged or unplugged

I think the title describes the problem well. When I plug in the charger, the screen turns on and displays the lock screen, but then stays on forever until I press the power button to turn it off. Any possible known fix for this?
Same problem here...
Stefan10 said:
Same problem here...
Click to expand...
Click to collapse
I tried to do two things, and both of them worked. One, reset the software (of course all your data and settings will be erased) and two, restore an earlier backup from TWRP. So what kept the screen on? I have no idea, probably some kind of a misbehaving app that's no longer present on my tablet.

Power on with no LCD..

hi, my brother gave me a old z5 premium to troubleshoot. It has no lcd (broken screen) and wants to me add one. When i connect to charge, the phone doesnt vibrate or make any noise. my dumb question is, does this phone need an LCD to turn on? i tried button combination but it does nothing. PC doesnt recognized it. it was working fine right before screen broke. I just dont want to buy a replacement and new battery then turns out its completely dead. even tried the button inside the tray to see if it reboots, but nothing..
I'm not completely sure, but mine was still booting up with a broken display and with no display at all. Are you sure the battery isn't completely dead (over-discharged)? That can even prevent the phone from charging while it's off. See what happens when you check it with a multimeter.

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