My Zenphone 2 laser ze551kl was working fine till I dropped it and broke the screen. The phone worked fine with the broken screen, no problems booting up or using any apps. I was still on lollipop as well, not rooted/unlocked.
I ordered a new screen off ebay and did the swap. When I power on the phone, nothing shows up on the display. However after awhile, I can feel the haptic feedback when I randomly tap the screen. I can also see the backlight is on sometimes. Unfortunately, I cannot put the old broken screen back on as it completely fell apart when I was removing it from the bezel. I assumed the new screen was broken so I returned it and ordered another one and I get the same result. I've checked the connectors many times and they are plugged in securely.
The phone also is detectable by "adb devices" if I hold down and power, give it a few seconds, then select the second item blindly for sideload. Looking for tips on how to proceed or troubleshoot.
Related
Thought it might be of interest for some so decided to open a new topic...
Based on reports of successfully replacing a screen on the Viewsonic G Tablet I thought I'd try the same with the vega. I ordered this screen for it was reported to work on the viewsonic and maybe work on the vega;
http://www.nbkit.com/Wholesale/prod...n-10.1-inch-LED-1366x768-WXGA-HD__c18093.html
After opening up the vega (pretty easy actually, see: http://android.modaco.com/content/advent-vega-vega-modaco-com/324250/vega-internals/) I tried connecting the LCD by simply removing the LCD interface connector from the original screen and plugging it into the LG. THis without actually removing the old screen, just had the LG on top of the (backside of the) vega.
Powering on did power on the LG screen, the backlight oif the LCD turned on, but unfortunately there was no display. So unless I'm missing a connector it doesn't seem to work...
It booted and the screen went to standby after guessing the lockscreen I guess, pressing the power button got it out of standby again (backlight turned on) but nothing else... Screen stayed black and no display.
Any questions, tips or hints are welcome since I'm a total nitwit
ps. Another issue is the location of the connector. It's way more to the left and upwards oin the LG. If you look at the pic on the site above you see the connector on the left of the white sticker (bottom left, at the right of the red letters). In the original it's on the bottom center or right-ish of that sticker.
This is a real shame,if the Vega had a better screen it would be a killer.
Gave it another try but again no success, screen lighted up... But other then that nothing. Booted it wih hdmi cable attatched and saw that it booted (used the CM7 rom btw) and started fine but no display on the lcd.
Attached some pics to show the different parts. Any comments are welcome but I simply guess it's a no-go..
Hi, I cracked my outer screen on my A500 and just got a replacement. The tablet worked fine though. The touch screen still allowed selection of anything on the entire screen even though it had lots of cracks on it. The LCD screen wasn't damaged at all.
Followed the videos to replace the screen that are posted to the letter, slowly and methodically. So I separated the outer screen from the display OK (it was a bit of a challenge since the double sided tape was holding pretty good).
Everything went together OK. I go to start it and the screen glows as it normally does as the very first part of the power-on. But nothing else. No logo, no messages - nothing.
But I plugged it into my PC via micro USB on a whim and lo and behold, I can actually see the internal storage and SD card. Looks like everything is there. And if I do the long press where I recall some of the icons are, I can feel the slight vibration as it selects the icon. So it would also appear that the touch screen is functioning too.
So it looks like the unit boots but for some reason, won't display. The screen just glows faintly like the very first part of a power-on.
Is there hope? Is there something I can do or check? Is there a way to verify the LCD without buying a new one?
Thanks,
Bob
RKramkowski said:
Hi, I cracked my outer screen on my A500 and just got a replacement. The tablet worked fine though. The touch screen still allowed selection of anything on the entire screen even though it had lots of cracks on it. The LCD screen wasn't damaged at all.
Followed the videos to replace the screen that are posted to the letter, slowly and methodically. So I separated the outer screen from the display OK (it was a bit of a challenge since the double sided tape was holding pretty good).
Everything went together OK. I go to start it and the screen glows as it normally does as the very first part of the power-on. But nothing else. No logo, no messages - nothing.
But I plugged it into my PC via micro USB on a whim and lo and behold, I can actually see the internal storage and SD card. Looks like everything is there. And if I do the long press where I recall some of the icons are, I can feel the slight vibration as it selects the icon. So it would also appear that the touch screen is functioning too.
So it looks like the unit boots but for some reason, won't display. The screen just glows faintly like the very first part of a power-on.
Is there hope? Is there something I can do or check? Is there a way to verify the LCD without buying a new one?
Thanks,
Bob
Click to expand...
Click to collapse
Well Bob, glad to see some folks take matters into their own hands!
I can't find the post, as it was a couple years or so ago. But I specifically remember a similar situation. And from what I know, when you tighten/place the screens together, you have to make sure you tighten them evenly, or else nothing works. Something to that effect. Also, I would probably take it apart again, and double check that everything is connected the proper way. Look for possible bent pins and such.
As far as I know, there are no software maintenance apps to check the lcd. Not to my knowledge anyhow, As we pretty much have all maintenance software for the 500/501.
Wish I could be of more help. I know awhile back, a couple of folks here in the forum replaced theirs after their kids stepped on them.
Hello,
The left side of the screen shows some Missingno type glitching (I've attached some pics)
Does anyone know where this type of problem comes from?
I had the screen replaced and it worked beautifully afterwards for a couple of days...
I also installed system updates.. so I'm wondering; is this a hardware or software issue?
Thanks for your time and interest
/Shady69
Happened to my wife. Needed to be returned and fixed, hardware glitch not software. I am not sure if it was a screen issue or some other hardware.
Sent from my XT1575 using Tapatalk
Did you have the screen replaced because of the screen flashing, or did the flashes start only after you had the screen replaced?
If the problem has been consistent over the course of two different screens, it would point towards a hardware fault on the sending end of the display connector, right where the ribbons leave the motherboard.
If this problem is brand-new, it might just be that the display connector was not fully secured when the new screen was installed.
Mine is doing the exact same thing. Left side goes all grey and static looking.
I took it apart and reseated the screen ribbon connector and at first I thought it made a difference, but now it continues to glitch out. I took it apart a second time and it has the half screen right at boot up. Sometimes it goes away just setting on the desk but seems to come back regularly. Its only the visual part of the screen, the touch points are still all in the same locations. And when I took a screen shot while it was glitching, the screen shot came out normal. So I am hoping its only the screen/digitizer that is going bad.
I am going to buy a new screen and see if that fixes it. Its only $60 on eBay and its pretty simple to take apart. I will post back if it fixes the problem. That way if someone else has the issue they will know.
Moto x style display problem
I have got the similar problems with display and I will return for warranty repair. I will tell you later what happened.
Downgrade to Lollipop , It worked for me.!
...
(This is the tip for everyone)
I replaced the screen and that seems to have fixed it for now. I haven't had much chance to use it since the screen replacement though. I will update in the next week or so and let everyone know how the screen replacement holds up.
The replacement screen only lasted about a week and now the righthand side has glitched out. I am going to take it apart and put it back together but i think its time for a new phone.
These phone are getting cheap and I really like it so I may just get another. Although the lure of a dual sim version is attractive.
Hello,
Since a few days, the touch input of my front (LCD) screen stopped working. Nothing looks damaged, the screen still displays what it is supposed to, but there is no reaction to my inputs (actions on volume and power buttons do work, as well as on the e-ink screen). Did this happen to any of you? Any suggestion on possible ways to fix it?
I should also mention that it still works by moments, like half a day working, then 2 days not responding, etc. I tried shaking it in different ways should a connector be slightly displaced, with no success: the few times it started working again came like a (good) surprise. I also had the great idea to do a factory reset, so now the phone is stuck on the Android configuration wizard, which must be done on the front screen (no possibility to use YotaMirror, apparently).
Thanks!
wicoz said:
Hello,
Since a few days, the touch input of my front (LCD) screen stopped working. Nothing looks damaged, the screen still displays what it is supposed to, but there is no reaction to my inputs (actions on volume and power buttons do work, as well as on the e-ink screen). Did this happen to any of you? Any suggestion on possible ways to fix it?
I should also mention that it still works by moments, like half a day working, then 2 days not responding, etc. I tried shaking it in different ways should a connector be slightly displaced, with no success: the few times it started working again came like a (good) surprise. I also had the great idea to do a factory reset, so now the phone is stuck on the Android configuration wizard, which must be done on the front screen (no possibility to use YotaMirror, apparently).
Thanks!
Click to expand...
Click to collapse
i recommend reflash it. possibly and more strongly recommend to flash the same version and region which was installed for example HongKong 4.4.3 baseband number .HK1.0.36a
ftp://fw.ydevices.com/YotaPhone2/Firmwares/
Actually, I forgot that the front screen was replaced several months ago (by a repairer that mistakenly changed the front screen instead of the e-ink one which was having an issue).
The factory reset didn't improve the situation, the front screen becoming "touch-insensitive" every few days. After checking how the screen connectors are supposed to be plugged (opposed to the screen), I noticed that gently tapping the phone front screen down helped to solve the issue each time it happened. A few days ago, I finally opened the phone (quite easy, there are two useful videos online) and unplugged/replugged the screen connector. It has been working fine since then.
If it happens to anybody (who would have its front screen replaced), I hope it can help!
This is my first attempt at a hardware repair. I ordered a replacement display with frame for my d800 that broke 5 yrs ago. I was not aware of a method to bench test the new display before reassembling the device until afterwards so it was not tested before hand by myself.
I feel like I reassembled the phone decently, but the display wont power on just a black screen. The device does boot as it seems to go into android since I get system and volume sounds.
<deleted paragraphs>
Edit: I got the display to work. One of the ribbon cables wasn't seated completely. My first successful repair. Yay!!!