Hi guys..
So I bought a LG G2 used on eBay. It was for 50 bucks or so and it was cheap because it didn't have a screen but the seller stated everything else works.
So heres what I did:
Purchased new screen x 2 (twice)
Both screens didn't work
Connected phone to TV through an HDMI adapter
The phone heats up while it's booting up sometimes
I can see the phone screen on the TV but the screen doesn't light up at all except it does have a tiny bit of backlight. As I touch the screen, it goes VERY slow, takes a second or two to respond.
How do I know if it needs a new motherboard or just new parts?
If it goes very slow but it shows on the TV, does that mean the motherboard is the issue?
Thanks in advance!!
Related
I bought an 8525 used off ebay, with a broken screen listed as its only defect. I bought a replacement screen and installed it, but still no dice. I can plug the phone into my PC and it's accessible through Windows Mobile Device Center. It even let me upgrade the firmware to the official WM6 ROM. Still, no video.
I read in a thread here that if you plug in the phone to USB with no battery in it and a red light comes on, it means the hardware is OK, and with a battery in it if the light flashes red then goes black it means the battery is no good, and that the screen won't light in this circumstance.
So I bought a *brand new battery*, and plugged it into the phone--it still flashes a red light and doesn't turn on the green charge light, and the screen still doesn't light.
Can someone please offer some advice? Obviously the device itself works because it connects, syncs and takes software updates, but without a display it's as good as dead anyway. My new screen came with a new cable as well, so I'm pretty sure it isn't the problem.
Thanks!!!
Jason
From what you've described I don't think a broken screen was the only problem with the phone and that some of the internal electronics are defective as well.
I tend to agree, but I'm looking for a starting point to look at next. As I mentioned, the device works fine aside from the screen, so apparently there is something more, I'm just not sure where to look.
Thanks!
Jason
I had a problem with my LCD and tracked it down to a bung flywheel... I have no idea why that affected the lcd but I got a 2nd Hermes off ebay and replaced the flywheel off the old one onto the new Hermes as I liked the feel of the older flywheel better. This caused the new LCD to turn off too. I replaced the flywheel again and it worked... Have had no problems since...
Cheers...
Today, when I was switched on my Nike and tried to write my SIM cards password, I realised that touchscreen is not working. I tried to press various places of the screen but with no luck I made some reboots but again the same luck... so propably is not software problem. It's very difficult to use it only with it's keyboard and it looses its usability :S Is there anything I can do to fix it up???
Recently I came onto the same problem, at first the screen didn't work and then the screen just became black.
I opened up the phone and saw the flex cable had been scratched, so I bought a new one at ebay, replaced the old one, and wolah... worked like charm. Got my old phone back, installed a new 6.5.3 ROM and I'm LUVIN my "old" HTC.
Search for HTC TOUCH DUAL NEON 300 FLEX CABLE REPAIR LCD SCREEN US
I bought mine in Iceland, (Europe) but I think that all the flex cables are the same in all versions of the phone.
Thank you for your advice
Thank you for your advice,
I didn't manage to change the flex cable yet, because the touchscreen started to response again, but just for 3 hours... Now it does not response again. The screen now displays everything fine, but if I touch nothing happens. I can only use it by the keyboard. I heard that in most chases, scratched flex cable turns screen white or black, it doesn't affects the touch(screen). But I'll give it a go
The phone was working fine but my son said the touch screen was working off and on. Now it doesn't come on at all. I am trying to find out if the phone needs a new lcd screen or maybe it's just a cable causing the phone not to work. We tried the reset, took out battery/sim card and still nothing happens on the phone. The screen is still a grayish white. It seems to be charging. When we put the battery back in it vibrates like it wants to turn on. Any help with this problem would be appreciated.
Still bad
Hi, hope you fixed the phone, sounds like a bad flex, you can get a new one from eBay (about 16Dlls).
Changing the flex isn't that difficult but you must be VERY CAREFUL or you can damage some phone internals, there is a service manual but i think you cant watch some disassembly videos on youtube, they're better.
Hello, I recently attempted to replace the USB flex cable on my D800, because the original touch screen turned on, but the touch was inaccurate and had dead zones. I would touch one place on the lock screen, but the circle would appear in a different area instead. (The top half of the screen was pretty accurate, but lost accuracy from the middle and down.)
So, I ordered another flex cable for the D800, same as the original (labeling and everything). However, the new flex cable wouldn't register any touches at all. The display would turn on, but no touch. So I reinstalled the old flex cable and the touch worked, just not correctly. Faulty new cable?
Anyway, at that point I thought, hey, maybe it's the digitizer, so I got a new LCD+Digitizer assembly for $44. I installed it and it turns on fine, but still has touch issues with the original flex cable, and no touch on the new flex cable.
So... does this just mean that both of my flex cables are faulty? Or is it something else? Because it's definitely not the digitizer.
Extra info:
1. I factory reset the phone several times but no improvement, so I don't think it's a software issue.
2. I bought the phone second hand for $80; needed a battery replacement, because the screen wouldn't turn on and had a blinking red light.
3. Oddly enough, the battery that was inside it when I bought the phone was manufactured in 2014, even though the phone itself was used and fairly old, so I assume the original owner had opened it once before.
4. Looking at all the parts inside the phone, they're clearly labeled as D800/801. However, I managed to get through the settings to hardware info and it says the model is LG-D802T (Australian model?). I don't know what's going on.... ugh
same problem ... with no fix yet
Ok, so my G2 died the other day. Well, it still works great, but the screen went to white fuzz... like what you used to see when the rabbit ears on your Tube TV didnt get any reception. Static fuzz, but thats all it showed when i powered it on.
The phone, that day before it broke, was on the boat and got really hot. Once it cooled down that night this happened.
In my grand fix it fashion, i opened the phone up wrong and ripped the LCD ribbon off the screen. Blah. So I just ordered a new OEM lcd panel/touch digitizer kit from ebay.
Popped that in the phone, and behold, it booted to the LG logo!! then the logo went out. That was that, just a black screen. But the phone still was working, i can hear it boot up and receiving texts.
I tried to boot it a few more times (disconnect the battery, reconnect, boot). The LG logo comes up, then goes out.
I found out if i let the phone sit for 30min or so, it will actually boot just long enough to hit the desktop and it seems fine. But it wont respond to touch at all, then seconds later it goes black again and thats that until I let it cool.
There is nothing else apparently wrong. It just wont respond to touch at all and the screen blanks out soon after boot. Its definitely some chip heating up too much and failing. I see on the main ribbon assembly, the one that connect the LCD to the mainboard, has some chips on it... it reminds me (A LOT!) of the TCON boards on LCD TV's. When those go bad, the TV still works fine but the display is all messed up. So I ordered that assembly and it will be here in a few days... but has anyone seen this before? does that ribbon assembly really ever fail? Again, the motherboard would be the only thing left, but that does still boot and work... I haven't tried connecting it to a TV but i wouldn't be surprised if that works... it just doesnt display anything on the phone's screen.
cable assembly didnt work :/
ordered a motherboard. this will be a practically new phone by the time its working again... if ever...
SUCCESS!!!
New motherboard installed. Finally boots and works properly. Well, it sort of has to, because there wasn't much left to replace! New screen/digitizer, ribbon assembly/charger port, and motherboard!
Just did the manual lollipop update!!!!! I got my phone back!!! screw you crappy 4" backup that i hated!