Blank screen - Defy General

Hi
I had a wroking defy - I needed to change the screen because the old one had a row of dead pixels,
I've bought a new one connected it and --- I have a blank screen no motorola logo - no text displayed in bootloader - nothing can be seen also in recovery. The funny and sad thing is that now when I connect the old screen I have the same problem, eaven flashing a whole sfb does nothing.
Please help me see things ...

Unplug the display connector and replug it in, my defy's screen was flickering and i could not see anything but when i played around with that little connector, it fixed it.

hsrars-d said:
Unplug the display connector and replug it in, my defy's screen was flickering and i could not see anything but when i played around with that little connector, it fixed it.
Click to expand...
Click to collapse
the problem is - i did this about 8 times plug - unplug , nothing changes.

Related

[Q] Hardware question. See no information on display.

After I have changed the broken display on DHD for the new set: Display + Digitizer, the new display doesn't work.
When I press start the vibro works only for seconds, and then I hear the system boot soud, but there aren't any information on the display, I can see only the backlight.
What is the problem?
Mtl_x5 said:
After I have changed the broken display on DHD for the new set: Display + Digitizer, the new display doesn't work.
When I press start the vibro works only for seconds, and then I hear the system boot soud, but there aren't any information on the display, I can see only the backlight.
What is the problem?
Click to expand...
Click to collapse
I dont know too much about the hardware side of phones, but I know a lot about computers so I may be of some help lol
How many wires/contacts are there between the display and any external components such as the motherboard?
If only one, make sure it is plugged in correctly, the right way round, and plugged in all the way.
If there are more than one, make sure that if they have the same connector that you havent got them mixed up, such as the one that controls what displays and the one that supplies power.
This is all I can help with, sorry.
Thanks!
There is only one contact between the display and the motherboard.
I have connected the old broken display... got the same result - no info on the display. ((

Xperia S backlight problem

Hello. I have a problem with the backlight of my xperia S. Today I disassembled the phone because of a problem with the sim card slot, but then the backlight of display and the bottom transparent plastic stopped working. I see that the display is showing something and touch is working fine, but no light. Everything seems to be plugged correctly. Please help asap..
ninja91 said:
Hello. I have a problem with the backlight of my xperia S. Today I disassembled the phone because of a problem with the sim card slot, but then the backlight of display and the bottom transparent plastic stopped working. I see that the display is showing something and touch is working fine, but no light. Everything seems to be plugged correctly. Please help asap..
Click to expand...
Click to collapse
Same issue over here. I only disconnected the foil connector next to the accu and reconnected it but the backlite is no moreworking.
Have you fixed it?
Did you fixed it?
same here, i switched back to my original battery and the backlight just didn't go on, i can see that the led is fine and even the bottom leds are fine, and the touch is working perfectly but the only thing i can do is unlock the screen and answer call (i can do the other things but I just cant really write texts without seeing what im replying to)
would like any of you guy to help me, thanks in advance!!!
ninja91 said:
Hello. I have a problem with the backlight of my xperia S. Today I disassembled the phone because of a problem with the sim card slot, but then the backlight of display and the bottom transparent plastic stopped working. I see that the display is showing something and touch is working fine, but no light. Everything seems to be plugged correctly. Please help asap..
Click to expand...
Click to collapse
just removing the lcd flex cable doesnt solve the problem..do the process in three steps
step1: remove battery pin(inbuilt battery) or remove battery..then press the power button for 5seconds..and then putin the battery..
step2:remove the lcd flex cable and the touch equiliser pin also..remove the battery pin(if inbuilt battery)..or simply remove battery..do every thing in the same process..dont jumble..after doing that..again press the power button for 5 seconds again..and putin the battery
step3:now assemble the entire mobile again with screws..because there are certain connections with motherboard and screen which will come in contact only after placing them tightly with screws
now poweron the mobile..this time it works..
the main reason is the failure of inductor component on the mother board(cant tell the accurate component name)..
aravindA8 said:
just removing the lcd flex cable doesnt solve the problem..do the process in three steps
step1: remove battery pin(inbuilt battery) or remove battery..then press the power button for 5seconds..and then putin the battery..
step2:remove the lcd flex cable and the touch equiliser pin also..remove the battery pin(if inbuilt battery)..or simply remove battery..do every thing in the same process..dont jumble..after doing that..again press the power button for 5 seconds again..and putin the battery
step3:now assemble the entire mobile again with screws..because there are certain connections with motherboard and screen which will come in contact only after placing them tightly with screws
now poweron the mobile..this time it works..
the main reason is the failure of inductor component on the mother board(cant tell the accurate component name)..
Click to expand...
Click to collapse
Nope it doesn't worked..
100% my very same problem
I can confirm this problem was fixed by this
http://forum.gsmhosting.com/vbb/f261/xperia-s-lt26i-no-light-solution-1655166/
But for god's sake, be careful with tinning. A drop too much and you have a shortcut.
EDIT: intriguingly, I noticed I have another close up photo of basically the same area (please, don't bother with oxidation trails).
Sent from my Xperia S using XDA Free mobile app

Hard Brick - Black Screen of Death - OMAP4440

What do i do if phone won't turn on ^_^. It was turning on... but then shutting off mysteriosuly during boot... and during cwm... but now.. even after a battery pull.. and also plugged in... no power...will go to the phone?
What makes no sense was that it working fine.. till I edited an eri.xml file.... all I did was place it into /sdcard and /data .
- Can't get into bootloader
- Can't get into download mode
- Won't even show "charging" screen
- When I plug it into a computer, it does the OMAP4440 disconnect, reconnect shindig.
- Tried different batteries
After like 2 hours of research teh OMAP4440 is somehow related to the black screen of death... I mean just look at this:
device manager "omap4440"
I have no idea what to do............................ ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...
I was just about to post that I'm in a similar situation.
I plugged mine in yesterday to charge it up and when I went back to check the phone was dead no life at all.
What makes no sense was that it working fine.. till I edited an eri.xml file.... all I did was place it into /sdcard and /data .
- Can't get into bootloader
- Can't get into download mode
- Won't even show "charging" screen
- When I plug it into a computer, it does the OMAP4440 disconnect, reconnect shindig.
- Tried different batteries
no one's ever solved omap4440 ? + black screen of death?
So I bricked my GNEX...Then brought it back to life!
IDK if this helps or not
did you get you phone fixed i have the same exact problem and wondering if there is a fix for it
Mine is having similar issues, the led indicator is lighting and it's making noise but no screen lighting at all. I tried hard reboot. Everybody keeps prompting me to use command mode by pressing home, volume up and power button.,the trouble is my phone doesn't light up so I can't see the commands. I sent my first s7 edge back and I'm on the replacement and now it bricked
jdub4christ said:
Mine is having similar issues, the led indicator is lighting and it's making noise but no screen lighting at all. I tried hard reboot. Everybody keeps prompting me to use command mode by pressing home, volume up and power button.,the trouble is my phone doesn't light up so I can't see the commands. I sent my first s7 edge back and I'm on the replacement and now it bricked
Click to expand...
Click to collapse
This particular forum is for a different galaxy phone than s7, but I do hope you solve the problem

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.

Stuck in low battery boot loop

Hello, Huawei gadget friends.
My watch started to go in to a "low power boot loop" a week ago so I left it alone hoping a full drain would restore it back to working condition, but alas not.
So now this is the situation:
1) press button, nothing happens
2) connect to power shows the charging icon (white battery with power sign) and then after a few mins commences a boot loop as follows
3) from the charging icon, then gives the "Device software can't be checked for corruption..." message
4) followed by the red Huawei logo, then a single vibrate and then back to step 3 above
5) removing the watch from the charger stops the boot loop but then shows the low battery icon (white battery with one bar).
In one or two occasions, I saw it boot up to the colorful spinning 4 android wear logo, but did not complete (did not show "Android Wear" before rebooting again.
I have tried getting it to recovery mode screen or fastboot but without success -- I keep getting the second buzz without fail.
When the beta of 1.5 came out, I tried it, but since then, have wiped my mac and don't have the adb/fastboot software anymore. From reading the forums, there is now some new software called TWRP. Please advise what I can do.
Would I be right to suspect that it is some battery problem? Is it beyond help? :crying:
Thanks in advance!
MMM
Edit: I have also left it on for several hours charging (and rebooting constantly), thinking that perhaps it is just low battery -- but no success.
I'm experiencing the same problem, i turned it off yesterday at 17% and connected to the pc this morning to charge. I immediately noticed that it started looping with the white icon and it doesn't turn on, nor boots into download mode.
Have you found any way to restore it?
Mine doesn't show the red HW logo, charged for some hours and nothing.
I noticed that the pc see that there's something connected, but keeps saying "USB not recognized". I don't know what to do, i may open up and disconnect the battery
EDIT: SOLVED, it was just the cable that broke somehow. I soldered a new cable to the circular base but that didn't work, but as soon as i received this i connected to the pc and started pressing the button randomly till it showed the battery logo and started charging
I got this when I plugged it into my laptop. Plugging it into a dedicated USB charger solved my problem - I suspect the power rating on the USB socket wasn't high enough to charge effectively or that the USB socket is faulty in some other way. From what I understand, not all USB sockets are equal in that some are suitable for high-drain devices, some not so much. So trying another USB port on your computer may also help (Unfortunately at the time I was backing up to an external HDD on the other USB so that option wasn't open to me).
guyz, i have tried my method it actually worked on Xperia X Perfomance
When it goes to Bootloop for Drained battery, i just plug the cable and perform activity block method By pressing and holing power and both volume up and down and when it hits the 1st viberation i just simply release the key. (remember dont hold it too much long after 1st single viberation just release the keys ) and your phone will go to block activity mode. charging light will change it colors from red to blue.. after 2 minutes just press power button then you ll get another viberation and your phone will be seen as charged 2% and then it will be normal again...
i think it happens when battery drained and phone is unexpectedly trying to go boot in first place.
thank you

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