Hey.
I've tried to fix my phone screen's digitizer (first idea was to unplug the screen and plug it back in, which kinda worked). The phone worked fine while disassembled and I did a stupid thing - I turned it off by disconnecting the battery, as the power button was not working while disassembled. After I put it back together it did not turn on anymore (disassembling it again does not help). The notification LED is flashing while I'm holding the power button, it also starts flashing when I plug in the charger.
What could be the issue here?
EDIT: I figured out the issue - I broke off a tiny component on the motherboard while putting it back together. Took me a while.
How is the phone now? Did you replace the motherboard or lcd display? Did you repaired? Is the phone fixed?
XDA_PH said:
How is the phone now? Did you replace the motherboard or lcd display? Did you repaired? Is the phone fixed?
Click to expand...
Click to collapse
I have soldered on a new capacitor (one that I broke off) and now it is working fine. I still have to replace the display though.
Can you take a picture where is the component located
Can you take a picture or link where is the broken component located?
Mine unit is also broken, the amoled is dead but still active the touch is working and alarm is working just no display but after i decided to disassemble the mi 9T my self. Every time i charge the notif led blinks and also the battery is drained
XDA_PH said:
Can you take a picture where is the component located
Can you take a picture or link where is the broken component located?
Mine unit is also broken, the amoled is dead but still active the touch is working and alarm is working just no display but after i decided to disassemble the mi 9T my self. Every time i charge the notif led blinks and also the battery is drained
Click to expand...
Click to collapse
Did you solve the problem? I have the same problem on my device
Related
Before anyone jumps on me, I've been going through the Wiki and forums extensively, and found just one similar problem. Which wasn't solved...
My HTC TyTN/Hermes 200 won't boot up anymore. It is totally dead. I even can't get it into bootloader mode. Screen stays blank and the LED is off.
Put the (3 months old) battery in another Hermes to test it, and it's at 100% charge.
My Hermes shows a steady red LED when it's plugged into power without the battery in, and no LED at all when the battery is installed. The red LED turns off when the battery is installed while there's power going into the unit.
I've left the battery out for at least an hour, plugged it back in, same results. Like the other guy I tried the "pull power, pull battery, plug in power, plug in battery, reset" trick http://forum.xda-developers.com/show...6469&p=1077622 - to no avail.
Does anyone have any last resort ideas on how to get it to at least come back up to a boot loader screen ?
check the battery contact points on the phone. the hermes shows a red led when its plugged in but without a battery
... have you ever dismantled your hermes? your screen ribbon cable may have dead tracks or not be connected properly
just a test on the opposite side of the battery connectors with battery removed press firmly without putting pressure on the LCD, this worked for me when i had a white screen on power up.
if this fixes the problem you may need to actually dismantle the back and put some flame retardant electrical tape on the back over the existing tape to add an extra layer of pressure and retension
XtreMe_G said:
check the battery contact points on the phone. the hermes shows a red led when its plugged in but without a battery
Click to expand...
Click to collapse
Yes, I have cleaned the contact too, nothing. And the battery is OK for sure, my colleague's TyTN runs on it without any problem.
Mattnokis said:
... have you ever dismantled your hermes? your screen ribbon cable may have dead tracks or not be connected
Click to expand...
Click to collapse
In fact I have, I have totally dismantled and reassembled my TyTN yesterday afternoon, nothing.
the only other problem may be that when being dismantled you may have damaged some sensitive components, Electro Static Discharge will fry sensitive CMOS components, they do not like it at all, whenever dismantling you should wear an earth strap, any time i dismantled mine it was on a workbench with a static mat and i was earthed through the mat.
but this is one possibility, the only other idea is to swap main board and displays with another that works, finding someone willing to allow you to do this with a working hemes is the tough part.
thats as much all i can think of for now
R.I.P. my trustful Hermes 200
Thanks all for your assistance. I have come to the conclusion that my sweetheart is no longer among us. May she rest in peace.
I have obtained a (2d hand) replacement yesterday. May this one last longer.
I'll keep the old TyTN for replacement parts.
Oh well...
Hi, I've unfortunately broken my hd's lcd.
I've replaced it at home, but after I turn on the device, it vibrates one time, then I hear the htc opening sound, but there is no image or light.
So I guess the device itself is functional, but there is a problem with the lcd.
Somebody told me, that if I put on it a new stock rom it would fix the problem.
But when I connect the hd with an usb cable to my computer, nothing happens, there is no connection estabilished, the computer doesn't see the hd.
When I plug the device to charge, it charges.
So how can I replace the rom on my hd? :S
I've also tried to update the device from an sd card, I've formatted an 8gb sd card under win7,put on it an official rom, with the device turned off pressed the vol down button+the power button,then release the power button,the the vol down button,then press the power button.
But it's the sam: vibrateing when turning on,then after 30secs the htc sound,but no update..
Have you taken your HD apart again and checked the physical connection of the ribbon connectors for the LCD and Digitizer? They have to be pushed all the way into the socket and the sockets must be locked in a couple of different methods depending on the connection type. If they aren't in properly, you would probably experience the problem you've described.
Before trying to explore software issues, make 100% sure that you don't have a hardware issue.
I had the sync connection issues, then I found this thread. http://forum.xda-developers.com/showthread.php?t=524619 I followed the instructions and was able to get connected again. It's worth a try.
if you change the lcd and don't get any image on the device
I would think
the lcd you got is dead
or the image display port of your motherboard is dead
Rudegar said:
if you change the lcd and don't get any image on the device
I would think
the lcd you got is dead
or the image display port of your motherboard is dead
Click to expand...
Click to collapse
I also have the same no image issue. I have also tried a second LCD with no luck. Once I was able to connect to the phone again, I flashed the stock rom from HTC, still no LCD. Tried leaving the battery out overnight, still nothing. I have been able to get the phone display to work by putting the phone body minus battery by an exterior window for about 1/2 hour, its cold in my neck of the woods. Pop the battery back in and I have a screen again, for about 5 minutes... One time I was able to get the phone to stay on for over an hour by doing the above steps and then right after putting battery back in cool phone, I immediately synced up with my PC and it stayed alive.. I don't know what the deal is.
Update for those who care. I have been playing with the cold phone/battery and have found out the following:
Cold battery/warm phone = no LCD
cold phone/warm battery = no LCD
cold phone/cold battery = working LCD every time.
I have also been able to use the phone, after both batt. and phone are cold, for as long as I want as long as it stays active and does not go to sleep. The phone will not come back on if I let the screen turn off by itself or if I push the power button to turn it off unless I cool it off again. I plan to call HTC in the morning to see about a repair, but have had fun playing with this weird situation.
So,I've opened up my HD and found out, that the data cable that is connected to the volume button has been detached from it.
Is it possible to solder it back without changing the piece?
My hd is still in the srvice shop for a price offer, but after I will get it back, I will try your cold lcd/battery thing.
Will it work with the fridge too? Because it's getting warm up here
So,if I undertand you correctly: after the lcd and the battery is cold, the lcd works, and if you connect it with the pc, it's stays alive until you put the screen to sleep,than it's dead again?
Zirowe said:
My hd is still in the srvice shop for a price offer, but after I will get it back, I will try your cold lcd/battery thing.
Will it work with the fridge too? Because it's getting warm up here
So,if I undertand you correctly: after the lcd and the battery is cold, the lcd works, and if you connect it with the pc, it's stays alive until you put the screen to sleep,than it's dead again?
Click to expand...
Click to collapse
The cold trick has worked every time for me. I only hooked it up and had it on while connected to the pc once, but I think it should work again.
On another note, I heard back from the repair center and they wanted to replace the LCD (for $300) and I then explained to them that the LCD was not the problem and then was informed if it was indeed the mainboard that needed replacement then it would cost even more... I tried to plead with them that it is a common problem with HD's and even though the warranty is void I think they should cover it, didn't work.. It's times like these that I curse my curiosity and ability to repair my own things.
Zirowe said:
My hd is still in the srvice shop for a price offer, but after I will get it back, I will try your cold lcd/battery thing.
Will it work with the fridge too? Because it's getting warm up here
So,if I undertand you correctly: after the lcd and the battery is cold, the lcd works, and if you connect it with the pc, it's stays alive until you put the screen to sleep,than it's dead again?
Click to expand...
Click to collapse
As far as the fridge goes, it should work just don't leave it in too long.. if it gets too cold then you might get condensation when it heats back up.
Forgot to add that I got my HD back from HTC yesterday. Got excited thinking they went ahead and fixed it for me!! But no... It worked just fine for about 5 hours after I unboxed and put my battery back in. Was turning on and off like normal, then after bout 5 hours it was back to the usual working phone with no LCD. I did notice that the screen was pulsing, for lack of a better term, it would dim then come back up to full brightness, then dim and repeat. There has got to be a way to fix this! (other than the mainboard replacement)
Hi All
My friend recently gave me his LG G2 as it had a problem.
What happens is currently if you try and turn on the phone nothing happens. When you plug the phone into the charger the red led blinks and nothing else happens. He told me that he got the phone brand new off eBay and that the problem started after he left the phone plugged in overnight. No software modifications have been done to the phone prior to the red light issue.
After some investigation into the issue i found nothing except another eBay listing with a LG G2 D802 where the guy got water into his phone and it has the exact problem where the phone does not turn on and a red light comes on when attempting to charge the phone. The eBay listing also says that the phone was seen by a service technician who said the circuit board was damaged but is repairable
Before i spend any money buying spare parts does anyone have any idea on what the problem is and whether its worth fixing?
Thanks
Could it be that the motherboard got damaged?
I don't think the mother board got damaged. I had the same problem with both my G2's. (D800 and LS980)
I had changed the motherboard from ls980 to the d800, I connect everything, LCD, digitizer, battery,front and back camera ..etc..
I go to try and power the phone up but nothing happens..
I go to plug in the phone.(Nothing happens)
I use another charger(nothing happens.)
My phone wasn't water damaged though. In your case you could open up your phone and disconnect the battery connector, After about 1-3 minutes connect it back & leave phone alone.(don't try to power up)
I had a problem with one of the phones not having the red LED light coming up to tell nevit was charging. I switch the battery to another bezel & motherboard & it shows 40% battery level.
It definitely worth a try to open your phone & disconnect and connect the battery if the phone was charging one night.. I remember seeing a forum on here that the phone might be still on charging mode or something.
Sent from my LG-D800 using XDA Premium 4 mobile app
Hi,
I have the same problem, the only sign of life is a red flashing led when I try to charge it up.
My lg g2 (D802) did get water damaged tho, however I don't think it has been damaged that bad. When I found it in the watery environment it still worked, but it was quite warm. First hour or so I put in in a towel, because I wasnt home. When I got home I discovered it was dead. Then I put it in rice for two days, but now this problem occurred.
I reconnected the battery (twice) but it didnt change a thing, and now it still won't boot up...
Hopefully someone can help me (or sees this at all),
Thanks in advance
I have the same problem with my G2. I changed the motherboard after it got water damage but nothing else changed. what should i do?
Solution for blinking red error
Hello Guys,
I have the same problem like you others. 8 times red blinks, phone won't charge, PC won't recognize it, dead at all. But I found the solution. There is a short circuit on the moterboard. That can be LCD, digitizer, buttons or anything other. I have unpluged digitizer connector and BOoM!, connected it to charger and turn on with power button. So you guys can test what's making problem on your MB, it can be anythinhg. I hope that will help to someone.
Sorry for bad English.
same thing here
I have an LG G2 that I recently replaced the batter (ordered from ebay). After the install, the phone just blinks the red indicator light. When I hold the power button, it blinks 8 times, pauses then starts over again blinking 8 times and pausing. Please help.
Lore4321nz said:
I have an LG G2 that I recently replaced the batter (ordered from ebay). After the install, the phone just blinks the red indicator light. When I hold the power button, it blinks 8 times, pauses then starts over again blinking 8 times and pausing. Please help.
Click to expand...
Click to collapse
I have the exact same problem. recently bought a new battery, because my original one is increasing in size (very strange) and decreasing in power.
When i put in the new battery the phone doesnt work if i try to turn it on. When i connect the battery to the charger its just the blinking red light...
OrtizG33R44d0 said:
I don't think the mother board got damaged. I had the same problem with both my G2's. (D800 and LS980)
I had changed the motherboard from ls980 to the d800, I connect everything, LCD, digitizer, battery,front and back camera ..etc..
I go to try and power the phone up but nothing happens..
I go to plug in the phone.(Nothing happens)
I use another charger(nothing happens.)
My phone wasn't water damaged though. In your case you could open up your phone and disconnect the battery connector, After about 1-3 minutes connect it back & leave phone alone.(don't try to power up)
I had a problem with one of the phones not having the red LED light coming up to tell nevit was charging. I switch the battery to another bezel & motherboard & it shows 40% battery level.
It definitely worth a try to open your phone & disconnect and connect the battery if the phone was charging one night.. I remember seeing a forum on here that the phone might be still on charging mode or something.
Sent from my LG-D800 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'm having the exact same problem...working ls980 phone using to restore my D801 motherboard....but have no power.
When I plug the ls980 board back in it works again. Last time my D801 board red led blinked 2x but wouldn't startup with its own battery. How did you fix it?
It is the battery. either the cable is ripped or the battery is at 0 volts I've just tested this on my LS980 using my analyzer to fully charge a battery externally to 100% made it work fine, please check the battery cable its very thin and very easy to rip without knowing it. (I work at a battery store) Hope this helps some of you!
A solution for 8 Red blinks:
If you have 8 Red blinks when you change the screen the Solution is:
The two metal joints from two small boards (besides volume and power button) that connect to the motherboard they should be completely attached to the connector.
Hey guys.
Basically I've recently replaced my whole screen assembly on my Nexus, but it turns off after a few seconds when it's not on charge.
Sometimes it'll last about a minute but will instantly turn off. I've tried a factory reset and it still does the same thing.
I've bought a replacement battery, just making sure that there's nothing else wrong with the phone? any advice etc would be appreciated.
Thanks.
If it started after you replaced the screen, then its likely that something isn't seated properly on the inside. I changed my screen too, so have a look at the battery connector and the connector that connects the bottom board (the one with the charger port) to the top one.
raze599 said:
If it started after you replaced the screen, then its likely that something isn't seated properly on the inside. I changed my screen too, so have a look at the battery connector and the connector that connects the bottom board (the one with the charger port) to the top one.
Click to expand...
Click to collapse
It was doing it before I changed the screen.
Rebdomine said:
It was doing it before I changed the screen.
Click to expand...
Click to collapse
In that case it probably is the battery. New one should fix it.
Hello guys!
I've dropped my nexus 4 and the LCD crashed completly. Then i bought a new LCD (only LCD) and tried to change by myself, but everything went wrong, i couldn't attach it with the glue that they sent me and i saw some cracks on the display.
After the "change", the phone does not turn on anymore, just blink the notification led with red color.
Now i'm thinking to buy the full display (LCD+Display) and try to change it again, i mean, it can't be hard to do, you just have to connect the cables and close (that's what i think).
Is there a way to discover if the full display will bring my phone back to life? :crying:
Thank you!!
Up :crying:
up
The blinking red LED could indicate a fully discharged battery. Try leaving it on a 2.0 amp charger for a few hours to see if you can get it to boot.
audit13 said:
The blinking red LED could indicate a fully discharged battery. Try leaving it on a 2.0 amp charger for a few hours to see if you can get it to boot.
Click to expand...
Click to collapse
I've tried it but the phone still the same. Maybe it's happening due the display is broken (cracked in the top right). I've installed a new one lcd thinking this could be the problem but now i'm thinking it's the display. Is there any way to test the motherboard and see if it's ok? If i could test the motherboard, i could decide between buy a new complete display (lcd + display) or another phone.
Thanks!
I don't know of any way to test the motherboard without a working display.
Heeyy, i've tried a new one charger, the phone blinked the red light a few minutes and then the screen turned on, but unable to see anything, due the broken display, but² the power button dont do anything, not even to turn the screen off. By this we can conclude that the motherboard is ok, and the problem is the display, right?
I've attached the photo of the screen. The white traces is where the display is "cracked", not really cracked, it's like a kneaded cloth, but it matches the cracks that the screen had.
As a test of the motherboard, let the phone charge with the new charger for a couple of hours. Then, try and power up the phone in fastboot mode, and type "fastboot devices" from a command prompt. Hopefully, the command will return the phone's serial #.