K6 Note - the replaced digitizer (with LCD) work only till 1st shutdown of the screen - Lenovo K6 / K6 Power / K6 Note Questions & Answers

Hi folks,
I replaced a broken screen (only broken glass for the optics-the touch and screen were working), for a new unit. After assembly, the screen work but the touch only till the first p'ower off' of the screen. So if I type the lock code set screen off time to 30min I can work on it - check setting, even updates, all is normal. But after I turn of the screen (timeout or button) and wake it up, the touch is not working (I can use the phone with usb mouse). After a reboot the touch is again working...
some ideas to check or how to fix it ?
Thanx Sleyo

Even am facing the same issue :crying: Unable to figure out whether its hardware or software issue. I tried to install TWRP recovery to check whether it is happening there also.. The same issue with recovery too. But if it is a hardware issue, why is it working until first screen lock.. So can anyone please help with this.

naveen60693 said:
Even am facing the same issue :crying: Unable to figure out whether its hardware or software issue. I tried to install TWRP recovery to check whether it is happening there also.. The same issue with recovery too. But if it is a hardware issue, why is it working until first screen lock.. So can anyone please help with this.
Click to expand...
Click to collapse
I ordered the LCD over ebay.com not original retailer - maybe that is a problem that it is different.
I also think there is no SW problem at all as U saying - if it does the same in TWRP it look to me clear.
Maybe some driver ? is there something in the Bootloader ?
I don't wanna order a new one wait 3 weeks just to realize it does not work and it is a HW problem of the mainboard.
The digitizer has definitely a problem to start UP after sleep, that's maybee a clue - the sleep mode of the chip. Has it some permanent wake up for som 'double-tap' gestures or so ?

Related

HELP! Touch screen no longer working!

This morning, my touch screen suddenly stopped working. Hardware keys are still working but device is not responding when the screen is touched. Already tried a hard reset but no success, now I am stuck at the align display screen. Also can no longer get to the bootmenu, so can't reflash my device! Any suggestions on what's wrong or how this can be fixed? Thanks for any help!!!!
I'm curious
Didn't you see any spots (like oil spots on the water) to the touch screen ?
I had the same problem .I replaced the touch screen and the phone is working again .
No, nothing, was working fine at night, when i woke up just randomly stopped working. The display is not cracked or anything, so wondering whether a screen replacement will do the trick? ALso strange that I can no longer get to the bootscreen to enter HardSPL...
Had the same problem, the issue (with mine anyhow) was the digitizer, which is an overlay that sits on top of the actual LCD screen to give it touch capability....
good post here
http://forum.xda-developers.com/showthread.php?t=392301&highlight=digitizer
I had a similar problem,
To get past the Align screen I had to apply pressure to the top of the screen opposite side of front facing camera - then use the screen as normal
I reflashed the original rom (manually getting to bootloader) - it worked for a bit but ended up sending is back to 02 for repair.
All they did apparently, was to reflash the ROM again and its been working since.
Had the same problem a couple of times a while ago, when i was trying out WM6.5.
All buttons worked but not the touch screen. Never really found out exactly what the problem was, but the first time I managed to get it working again by resetting the alignment:
While gps button pressed (under green button), press center D-pad button this will bring you to alignment screen.
The other time the "alignment trick" didn't work, but i got it working again, after flashing the original ROM couple of times. (And doing hard reset between each time)
I think I used this ROM
You say you can't get to the boot menu, do you run hard-SPL?
most likely its an hardware issue - had this one too, of course out of nowhere!
flash with original rom and if you cannot align screen (as the hardware seems to be broken) send it in for repair. it will be under guarantee, if screen isnt broken.
I had similar problem, I passed the alignment but i had a huge offset in the touch.
I replaced the touch screen and it solved the problem.
You can find it in ebay for 1 US $.
nogge69 said:
You say you can't get to the boot menu, do you run hard-SPL?
Click to expand...
Click to collapse
Thanks for all the help guys!!! I do run hard-SPL and have flashed many ROMS - just don't know why it won't enter the bootscreen anymore when I reset the device and press the camera button. Did manage to upload original ROM again by using activesync, now trying to restore original hard-SPL so I can send off the device for repair.
Hi, i had also the same problem, i find a threat in the internet... try to push the upper corners on the device with your fingers and then tab on the screen to see if the problem solved.
I had the same issue.
Its more than likely your digitizer. I tried flashing 100 different roms but always stuck at the align screen stage.
I actually have the barely used digitizer if anyone wants it (for a few dollars of course hehe) My mainboard died a couple of weeks after i installed the digitizer.
needless to say i moved away from the ****ty build quality of HTC to the MUCH better build quality of the iPhone.

HTC dealers acknowledge touch screen problems

Don't know if this has been posted before, but it's something you should know:
http://www.unwiredview.com/2010/06/...ted-in-the-uk-htc-hd2-has-digitizer-problems/
http://www.htcphones.net/htc-hd2-problems-with-touchscreen/
I'm having hardware problems too and I guess I have to take my phone back and wait longer than 2 weeks for it to get back
Most issue with the screen have been covered already on XDA, before sending you phone back flash back to your latest stock ROM and try the new Touch dll screen fix posted the other day, this transformed my phone completely.
Thanks for pointing me to this hotfix, missed that. Just installed it, but to be honest, I think my device has a hardware problem, because the accuracy isn't the biggest problem, it's the complete unsensitive screen that is every now and then. Then when I press hard on the htc logo the sensitivity is back, so I guess it must be a hardware problem.
But I'll be testing it the next days.
Now this is weird; the fix didn't help. But I put off any lock screen (Windows standard, Windows classic and CHT lock screen) and now I don't have any problems with hanging screen.
So is this a hardware problem or isn't it? Maybe one of the techies here can explain why I'm having screen problems with the lock screen set to on only and tell me if it's hardware or software related (because when locked pushing the screen helps)? The question is: what exactly does the lock screen option do, technically?

Phone works but backlight of the screen doesn't

Hello,
As you can see my issue is related to the screen... backlight always worked until some days ago where it failed somehow.
It started to fail when I flashed Stock Kitkat with the recovery but I don't think that it could be related...
My question is simple, did anyone faced this issue and resolved it?
My guess is that it has to be repaired but if there is a small chance it can be repaired from my side without opening it I'm willing to try it, otherwise it goes to reparation
[EDIT]
Apart from this issue the phone is working just fine, I mean it boots correctly, can enter in download/factory reset mode if I want too.
The only thing is if I adjust the brightness on the phone from Android nothing change, the phone is still dark and can hardly see what's in the screen.
[/EDIT]
Thanks in advance!

Elephone S7, touch screen not working...

Hi everyone, so as you probably already know I have a huge problem with my phone.
After few days of use a brand new phone Elephone s7, my screen just stopped working at all. It shows every thing correctly but when I press or touch screen nothing is happening.
All hard buttons are working fine...
I have tried to reset phone thru recovery mode but no changes.
My android version is 6.0
Any one knows what could happened? How to fix it?
https: //streamable. com/pom3l
Link to video shows how the touch screen is not working
Best regards.
misiek_mati said:
Hi everyone, so as you probably already know I have a huge problem with my phone.
After few days of use a brand new phone Elephone s7, my screen just stopped working at all. It shows every thing correctly but when I press or touch screen nothing is happening.
All hard buttons are working fine...
I have tried to reset phone thru recovery mode but no changes.
My android version is 6.0
Any one knows what could happened? How to fix it?
https: //streamable. com/pom3l
Link to video shows how the touch screen is not working
Best regards.
Click to expand...
Click to collapse
There's been a few screen broken issues, maybe best to return under warranty.
Sent from my Redmi Note 2 using Tapatalk
misiek_mati said:
Hi everyone, so as you probably already know I have a huge problem with my phone.
After few days of use a brand new phone Elephone s7, my screen just stopped working at all. It shows every thing correctly but when I press or touch screen nothing is happening.
All hard buttons are working fine...
I have tried to reset phone thru recovery mode but no changes.
My android version is 6.0
Any one knows what could happened? How to fix it?
https: //streamable. com/pom3l
Link to video shows how the touch screen is not working
Best regards.
Click to expand...
Click to collapse
bring your phone dead (no charging or 0% charging) then wait for 5 min untill your coll down and plug your phone to the charger and start it , now your touch of phone will work.
enjoy!!
miss engineer said:
bring your phone dead (no charging or 0% charging) then wait for 5 min untill your coll down and plug your phone to the charger and start it , now your touch of phone will work.
enjoy!!
Click to expand...
Click to collapse
Hi, did the power down etc solution work? I've the same issue.
S
My Elephone S7 screen became unresponsive today.
Sja0001 said:
Hi, did the power down etc solution work? I've the same issue.
S
Click to expand...
Click to collapse
I tried the power down idea and it didn't work for me. How else can I fix this unresponsive screen issue?
S.

Oneplus 5 Black screen after replacement

My OP5 screen had a small crack so I decided to repair it. After following the tutorial on youtube step by step the phone powers up fine. But as soon as the screen goes to sleep, it get stuck in black, although it feels like responsive (Ican hear the clicks and vibrates and all) but it wont wake up
imercado said:
My OP5 screen had a small crack so I decided to repair it. After following the tutorial on youtube step by step the phone powers up fine. But as soon as the screen goes to sleep, it get stuck in black, although it feels like responsive (Ican hear the clicks and vibrates and all) but it wont wake up
Click to expand...
Click to collapse
Could you wake up the screen? Maybe it's a connection problem or related to the proximity sensor?
Did you ever find a solution to your problem? I have exactly the same problem, but it happens only with Android 9.0. Oreo seems to be working OK, but as soon as I upgrade to official 9.0, the screen won't wake up from sleep. The backlight turns on, but the screen stays black. The phone works OK as long as I use it, but if I press the power button or let it to enter "standby mode", it will stay that way (off). I suppose it has something to do with the replacement screen, but since it works with 8.0, I wish there was a workaround to get the LCD to work with Pie too.
Same problem here. Replaced display too.
I've had a similar issue with a different device before (ZTE nubia Z7 mini). I replaced the screen and it would work correctly, but when I booted TWRP, I would get a black screen. I figured that because the replacement screen was not an OEM one, it may have something to do with LCD drivers in the recovery. I used the old cracked screen with the device opened up to navigate in the TWRP recovery, and I flashed an newer/different recovery. Voila, the new recovery worked with my replacement screen. Based on this experience, it may just be an LCD driver compatibility issue with the replacement screen, causing the screen to just go into forever sleep mode. The driver may need to be changed or tweaked in the Pie version for your replacement screen to work with it. Just a thought, not fully certain.
iwantademo123 said:
I've had a similar issue with a different device before (ZTE nubia Z7 mini). I replaced the screen and it would work correctly, but when I booted TWRP, I would get a black screen. I figured that because the replacement screen was not an OEM one, it may have something to do with LCD drivers in the recovery. I used the old cracked screen with the device opened up to navigate in the TWRP recovery, and I flashed an newer/different recovery. Voila, the new recovery worked with my replacement screen. Based on this experience, it may just be an LCD driver compatibility issue with the replacement screen, causing the screen to just go into forever sleep mode. The driver may need to be changed or tweaked in the Pie version for your replacement screen to work with it. Just a thought, not fully certain.
Click to expand...
Click to collapse
You're probably right about the driver issue. My OP5 has no problems whatsoever with Android 8.1, but 9.0 won't work no matter what I do after waking up the device. The backlight turns on and and off for a few times after which nothing happens. The phone is still working normally, but it's in "blind mode" (music will continue playing, volume buttons work...but they're kind of slow and laggy) Too bad that the latest update (9.01) didn't fix this issue either. I really wouldn't hold my breath getting this issue fixed anytime soon (officially) as it seems to be a cheap 3rd party screen problem.
edit: I tried the custom recovery (20181227) and the same thing happens there. Once screen goes off, it won't come back on.
Edit 2: gave up on the replacement screen and ordered an oem lcd. Lets see how it goes.
sbasil said:
You're probably right about the driver issue. My OP5 has no problems whatsoever with Android 8.1, but 9.0 won't work no matter what I do after waking up the device. The backlight turns on and and off for a few times after which nothing happens. The phone is still working normally, but it's in "blind mode" (music will continue playing, volume buttons work...but they're kind of slow and laggy) Too bad that the latest update (9.01) didn't fix this issue either. I really wouldn't hold my breath getting this issue fixed anytime soon (officially) as it seems to be a cheap 3rd party screen problem.
edit: I tried the custom recovery (20181227) and the same thing happens there. Once screen goes off, it won't come back on.
Edit 2: gave up on the replacement screen and ordered an oem lcd. Lets see how it goes.
Click to expand...
Click to collapse
Do keep us updated if changing the display again fixes this issue. Would be interesting if someone had a fix for 3rd party displays but as of now it seems that's highly unlikely
]
iwantademo123 said:
Do keep us updated if changing the display again fixes this issue. Would be interesting if someone had a fix for 3rd party displays but as of now it seems that's highly unlikely
Click to expand...
Click to collapse
Sure.
Got the new OEM amoled screen today. It's brighter, more responsive and doesn't get stuck (black screen) with Android Pie. Problem solved. Price was 3 x higher than the cheap 3rd party screens, but definitely worth it (around 80 euros). All screen gestures work as well.
Bought it on Witrigs (https://www.witrigs.com/oem-lcd-screen-assembly-for-oneplus-5-midnight-black). it came really well packed and arrived fast (7-10 days to Finland). I highly recommend this screen and Witrigs to everyone
Also changed the screen from a friend and have this strange behavior, that the screen won't turn on .. only when I reboot or double press the power button so it launches the camera - the delay tho is about 7s, which is insane! you guys think this is the screen problem, or did I damage something and if yes, what? I repaired about 100 phones in total already ..
Link to the video: https://youtu.be/QmkBspymv8w
androidfreak11 said:
Also changed the screen from a friend and have this strange behavior, that the screen won't turn on .. only when I reboot or double press the power button so it launches the camera - the delay tho is about 7s, which is insane! you guys think this is the screen problem, or did I damage something and if yes, what? I repaired about 100 phones in total already ..
Link to the video: https://youtu.be/QmkBspymv8w
Click to expand...
Click to collapse
Sounds a lot like my OP5 with cheap 3rd party screens which would hardly work at all with Android Pie. If your friend's phone is running on Pie, try downgrading it to Oreo and see if that helps. My phone worked moderately with Oreo but not at all with Pie (wake and touch issues). Currently my OP5 is running Android Pie perfectly with the screen that I bought on Witrigs.
androidfreak11 said:
Also changed the screen from a friend and have this strange behavior, that the screen won't turn on .. only when I reboot or double press the power button so it launches the camera - the delay tho is about 7s, which is insane! you guys think this is the screen problem, or did I damage something and if yes, what? I repaired about 100 phones in total already ..
Link to the video:
Click to expand...
Click to collapse
Bizarre, have you tried the usual factory reset / rom reflash? If you confirm that its not a software related issue, then it probably is just the screen if its not an OEM part. Can't see what else would be the issue here unless there was other kind of damage before the repair maybe
Like @sbasil mentioned, it could just be due to the non-OEM screen being incompatible with Pie drivers.
Thank you for saving my phone
sbasil said:
Sounds a lot like my OP5 with cheap 3rd party screens which would hardly work at all with Android Pie. If your friend's phone is running on Pie, try downgrading it to Oreo and see if that helps. My phone worked moderately with Oreo but not at all with Pie (wake and touch issues). Currently my OP5 is running Android Pie perfectly with the screen that I bought on Witrigs.
Click to expand...
Click to collapse
Thank you for saving my phone
Mine not working with lineage base rom but is good with last pie 9.0.8. Did you try it?
Have this issue too
My OP5 has its original AMOLED screen. Running OS 9.0.8. This started happening after the most recent update. At least I never noticed it before.
I ran *#808# diagnostics, thinking maybe it's the proximity sensor, or the fingerprint scanner, but everything passed.
Also while locked, ambient display works. It's just getting the Home screen to appear after waking the phone that's become agonizing. And it does wake, the touch screen is responsive, it's just completely blind.
I mean consider this: I can take a screen shot, a screen shot, while the screen is in ambient display and the screen shot is of the home screen.
Pressing the power button or home button or notification slider repeatedly sometimes coaxes it to appear, but the only sure way to get the Home screen back is to restart the phone.
I had a black screen issue after changing the screen to an OEM AMOLED one, and after tearing my hair out for a couple of hours, I discovered that turning off " night mode" fixed the problem instantly
Same happened to me... cracked screen, purchased 'OEM screen' installed. Some apps work, some just black screen.
Driver issue? Running Pie 9x. Anyone had success with this by dropping back to Oreo? Would it do anything different to flash the Pie Firmware?
I repair/upgrade OnePlus 3/3T/5/5T phones to donate to families in need at the local family shelter. Some of them have lost or had to sell their phones just to get food and such. Now they need one to arrange job interviews and housing, things of that nature. So anyways, all that to say this.... I have replaced a LOT of displays, and all of them were the 'cheap' ebay variety. Each and every time I would replace the display, the phone would act just as described in this thread.
After long hours of reading, searching, and experimenting, I have found the ultimate and final solution to this problem. The answer to this issue is simple, but was not so simple to find. Whenever anyone does a screen replacement, and the screen is not the high-priced OEM variety, their phone will almost always have extreme difficulty in waking. The fix, and it has worked for me 100% of the time, is to flash a custom kernel. For the OP5/5T the kernel I use that always works is the Affinity kernel. Just flash and forget. The phone will always wake up after you flash that kernel.
However, don't forget, that what also happens with these lower priced replacement screens is that you can no longer double-tap to wake. I still haven't found a solution for that problem, but it always happens each time I replace a screen. The kernel won't help with that. But it does fix the 'won't wake up' problem.
Try it for yourself and see. You will be happy you did!
Oblias said:
... The fix, and it has worked for me 100% of the time, is to flash a custom kernel. For the OP5/5T the kernel I use that always works is the Affinity kernel. Just flash and forget. The phone will always wake up after you flash that kernel.
Click to expand...
Click to collapse
Please, can you point which FW you're using?
d2mac said:
Please, can you point which FW you're using?
Click to expand...
Click to collapse
I'm not clear about what you are asking. What exactly are you calling FW?? Some people mean radio and camera firmware. Some people mean the custom rom that gets flashed. What do you mean?

Categories

Resources