I replaced a smashed screen and damaged LCD on an LG Optimus L90 D415 (T-Mobile) and the digitizer is responding in a mirror-image fashion. That is if I touch an area on the right side of the screen, the touch is registered in the same congruent location on the left and vice versa. This is consistent across the whole area. I turned on the Pointer Location in the Developer's Option and it did show the trace on the opposite side. Could this be a firmware issue rather than a hardware defect or damage?
I'm a phone repair technician, and I am comfortable with the repair I made. There was no damaging mistake in the installation. Visually, the part looked fine. And there was not mistake like a reverse or upside down connection (not possible with the design of this phone).
I don't know the history of the phone but TWRP and a custom ROM had been flashed to it. (Thunder XBlast? I think) . I then flashed Cyanogenmod 11 and then flashed a stock ROM that didn't include stock recovery or bootloader. With all three ROM's the same problem occurred.
The problem didn't seem consistent with a physically damaged or defected digitizer - no ghost touches, dead zones or inconsistent behavior. So because it had been rooted and a custom ROM flashed I thought it may actually be a firmware issue, so I brought it to this forum. Any ideas?
did you happen to solve the problem with the Lg L90 digitizer being mirrored? I'm experiencing the exact same problem with the LG L90 T Mobile version that I replace the digitizer on. I put a white one on as opposed to the black that it originally had from the manufacturer and was purchased on ebay and shipped from Westminster, Ca- I'm leaning towards it being a defective part-please let me of any solutions you came by-thank you so much for your time (phone is stock, not rooted)
Unfortunately, I have not found a solution to my digitizer problem, but your information is quite helpful. I too opted to get the white screen version off eBay from a company in Westminister, CA. It was what was most available and best priced. And the listing claimed it was compatible with D405 and D415. Mine is the T-Mobile version and was factory black. It appears then that it may not be a defect issue but a compatibility issue. And apparently it's not an effect from rooting or flashing a custom ROM since the same thing happened on your device that wasn't rooted. It would be nice if there was a software fix that would render it compatible. Incidentally, I paid around $30 for both the LCD and digitizer. Looking back on eBay just now I noticed the company has bumped the same parts up to almost $90. I'll have to check and see if I can still get an RMA and send it back. Let me know if you have any luck.
Sent from my Nexus 7 using XDA Free mobile app
Having the same issue here, purchased the black ebay version from a seller in MO and installed today. Are the contacts on the small ribbon cable reversible?
Installed on an unrooted tmobile L90 D415, bought the phone about 3 weeks ago before it dropped (my case came in the mail that same day).
Im wondering if there's a "good" version of this digitizer available, wouldn't mind paying a few more bucks on a part that actually works correctly.
Related
I originally had trouble with GPS working intermittently and found the thread about bending the pins slightly and it worked. Now I have wonderful GPS signal but can't send or receive calls or messages.
WiFi works, GPS works, I have 5 full bars but I can't place or receive calls.
I suspect that opening the phone resulted in damaging something, but what? If the antenna is damaged than why would I have 5 bars?
I googled everything I could think of and couldn't come up with any clue, anything new to try would be helpful.
I was running Cyanogenmod 9 and ended up flashing the stock ROM but *NOTHING* helps.
Thanks,
Tim
Have you checked your APN settings?
reply:
uwannabananababy said:
Have you checked your APN settings?
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Yes, I verified the APN settings. Even tried various other APN options that were recommended on other threads. Still nothing.
It's really weird, the signal displays sometimes 3, 4, or 5 bars and my other ATT phone works fine using the same SIM card.
Completely out in left field, but perhaps food for thought? http://m.youtube.com/#/watch?v=lyuGT3atgc8&desktop_uri=/watch?v=lyuGT3atgc8
BLACKSTAR X-SGH-I717 xda-developers app
Fixed - sent back to Samsung
I sent it back to Samsung for diagnostics. They said "Liquid damaged on PBA components" - which means the phone board assembly (main board).
Now I know for sure that I didn't get any liquid on any part of the phone what-so-ever, but since the repair was free, I'm not going to complain.
A suspicion is that the technicians are only given a few category codes to document the failure mode for the phone, and this seemed to be the closest one to the technician who looked at it.
What really happened is a mystery that may last for all time...
I can't wait to get the phone back so I can go rooted again!
-Tim
The water damage indicators are in the screws you remove to get inside.
rangercaptain said:
The water damage indicators are in the screws you remove to get inside.
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Click to collapse
Huh - how do they know that? There wasn't any obvious way to know I tampered with it...
-Tim
twelc said:
Huh - how do they know that? There wasn't any obvious way to know I tampered with it...
-Tim
Click to expand...
Click to collapse
Maybe they watched you do the repair.
Bah
I have 2 Notes purchased second hand which exhibit the same symptoms. I tried everything, changing ROMs (including stock), modems, carrier unlocking, different SIM cards, restoring IMEIs, changed the power connecter board where I believe the cell ANT is, always got the 'Not Registered on Network' when trying to make a call. I could deactivate HSDPA and LTE in the service menu and still connect on the EDGE network.
There are a few threads on this subject, but the only way I've seen it resolved is sending the phone in for a replacement mainboard. Unfortunately that wasn't an option for me. Buyer Beware.
Well, I thought Samsung was going to repair it but they sent the phone back saying it was unrepairable.
They slapped a red dot behind where the battery sits and there's some kind of red plastic behind the antenna for the phone. So I know they took the back apart.
I called them and they said it's unrepairable, and I asked how can it be unrepairable - can't you repair the phone you invented? Anyway it's hard to get anywhere with them.
It's kind of weird though, everything works but no network lock.
Well, I guess I'll chock it up to experience and sell it on ebay and buy a used one.
Tim
Samsung refused to repair the unit under warranty - which is fine because I am responsible for breaking it and I don't expect them to pay for my mistake. However, I asked them to fix it and bill me for the damages and they said they couldn't repair it.
Huh, so I asked them how they can build such a nice and complex phone but can't figure out how to repair it?
They flat out refused so I asked to have it escalated.
The put me in contact with another customer service number and the first thing he asked was would I be willing to pay for the repair - of course! That's all I wanted in the first place.
Anyway, I paid $200 and this is the response concerning the problem and resolution. I should get the phone back by tomorrow in like new condition!
Original Problem:
TECHNICAL INQUIRY - LCD / TOUCH PANEL / LED - TOUCH SCREEN CRACKED - STD/LCD FEE
Problem found:
BAD BGA COMPONENT - LCD DAMAGED - ABUSE - REAR COVER - COSMETICS
Solution:
REPLACED LCD - REPLACED COSMETIC - REPLACED COMPONENT - REPLACED PBA
Sorry to hear you're still not back with us yet. Having an awful go of it. Surely they'll have you going soon.
BLACKSTAR XI -SGH-I717 xda-developers app SAMSUNG done right
Hi,
I smashed my screen on my I9305 and not realizing it i put the I9300 replacement screen on the phone. I have had issues with the IMEI null and not picking up signal. I have tried all mentioned methods on here to restore but none have worked. I gave up an contacted a repair center and they have said that putting a I9305 screen on will solve the problem. Is this correct as I don't want t spend money if it is not correct.
Thanks
jpburke2k2 said:
Hi,
I smashed my screen on my I9305 and not realizing it i put the I9300 replacement screen on the phone. I have had issues with the IMEI null and not picking up signal. I have tried all mentioned methods on here to restore but none have worked. I gave up an contacted a repair center and they have said that putting a I9305 screen on will solve the problem. Is this correct as I don't want t spend money if it is not correct.
Thanks
Click to expand...
Click to collapse
As far as my knowledge goes screen replacing doesn't effect anything until or unless you have badly messed up some hardware in the process. The module used to allow communication on i9300 and i9305 is same plus it doesn't has to do anything with screen. You can try to put a new SIM card module to see whether the phone picks up signal or not. The best bet for you is that you don't go around spending money for a thing that is perfectly fine.
One more bet is that you may have ruined some inner hardware during the smash and not in the replacing process.
Hit Thanks if I helped.
did you replace the screen with a heat gun like in some videos on youtube? if so you might have damaged some of the sensible parts of the sIII if you didn't take them off before, for example the antenna or the simcard module like the one above me said.
so i think it will be difficult to find the broken part - changing all possible parts by yourself is very expensive and time-consuming.
I recommend you to consult an official samsung repair center (which will be expensive, too) or sell your phone as broken and invest the money in a new one...
Sent from my GT-I9300 using xda premium
morruk said:
did you replace the screen with a heat gun like in some videos on youtube? if so you might have damaged some of the sensible parts of the sIII if you didn't take them off before, for example the antenna or the simcard module like the one above me said.
so i think it will be difficult to find the broken part - changing all possible parts by yourself is very expensive and time-consuming.
I recommend you to consult an official samsung repair center (which will be expensive, too) or sell your phone as broken and invest the money in a new one...
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
No I replaced the screen with a genuine service pack one which came pretty much whole. Didn't heat anything just swapped them over and turned it on. Advice I got was that it was because I put on the i9300 screen on is why I couldn't restore my imei number.
Now selling the motherboard if anyone is interested
Hello everyone.
First of all, sorry about my English because I'm not a native speaker.
I have a phone model - HTC One X+ Plus PM63100 for AT&T 64GB - with cracked screen.
I found out that my phone has SONY display version ( http://forum.xda-developers.com/showthread.php?t=2164760 )
Wanted to replace digitizer with front panel and order it from here http://www.etradesupply.com/oem-htc...embly-with-front-housing-and-light-guide.html but person who answered my question about compatibility said that it is not compatible with my phone model.
However, there is a one customer review under that replacement part which says that "it turned out to be uncompatible with my HTC One X+ international version. I do not know why this is the case but it is what it is."
In wiki http://en.wikipedia.org/wiki/HTC_One_X it seem international X+ and AT&T version are same size.
I'm very confused and desperate, searching more than 2 months and can't find which replacement part fits my phone.
Please advice what to do or purchase.
Also, are both X+ models - S728e?
Thank you beforehand.
cracked screen
I was in a similar situation some time back, when my Telus unlocked HOX+ 64 Gb dropped and the screen cracked.
I gave it to a local repair guy, he ordered a HOX screen first and then realised that HOX+ has a little different hardware (some screws were in different places). hence, HOX and HOX+ are slightly different builds. Also, the international HOX+ and AT&T/Telus HOX+ are also different I suppose. Firstly the they have red coloured capacitive buttons at the bottom (also there is no red ring around the camera at the back).
The part shown in your link seems to be the same one that I have, so i think it should be compatible.
nrshastri said:
Also, the international HOX+ and AT&T/Telus HOX+ are also different I suppose. Firstly the they have red coloured capacitive buttons at the bottom (also there is no red ring around the camera at the back).
The part shown in your link seems to be the same one that I have, so i think it should be compatible.
Click to expand...
Click to collapse
Thank you for response.
I don't care about button colors, even logo. I just want to purchase match display. Could you please (if it is possible of course) ask your local repair guy what was the model he replaced for your phone? Even link will be very helpful for me.
Thanks againt
I've been using my phone since i quite badly cracked it last month. Touch screen is still working fine and i may not even get the screen fixed.
Only thing i'm worried about is if the device is less waterproof now i have large cracks in it....:/
Sent from my HTC One X+ using Tapatalk
hi thisaint,
i checked with my local guy, but sorry, he doesn't seem to have any clue regarding the model number or the actual source of the panel. most these repair guys here have a trader/distributor from whom they get all kinds of accessories required for repair and they hesitate to give out the details fearing loss of business.!
cracked display
nindo said:
they hesitate to give out the details fearing loss of business.!
Click to expand...
Click to collapse
Dear friend,
thank you for response.
I'll be happy to be in Mumbai or even in USA to repair my phone but unfortunately I live in another country. )
I had a hope to see my phone repaired before this christmas but it seem I'll meet holidays without it
Solved
Hello everyone.
Finally I have found a replacement lcd screen digitizer frame assembly at ebay/com.
Seller assure me that his SHARP screen is interchangeable with my previous SONY screen and I risked and purchased his item for 65 USD.
(insert ebay com) /itm/LCD-Display-Touch-Screen-Digitizer-Frame-Front-Cover-For-HTC-ONE-X-Plus-S728E-/251348208725?pt=LH_DefaultDomain_0&var=&hash=item3a85854c55
I'm using it without any issues, however screen buttons are red , that's all difference with original.
:crying: I have HTC One X+ 64gb Telus which is rooted,s-off and boot loader unlocked. I am using Elegancia 6.2.0. I don't know what happened to it. Suddenly Capacitive buttons are not working as light are working. In past it never dropped and I Nevar sit on it. I don't know why it happened. Now i am using LMT launcher from which I am not satisfied and thinking about repairing it. In my city there are no HTC service center but there is a collection point(I don't know what it is??? ) . I searched about this on Internet and found that it may be problem of Digitizer. So, My questions are:
1. By replacing LCD+Digitizer would solve this problem? If yes, then which variant should I buy SHARP or SONY version? As mine is Telus version.
2. Should I go to Collection Point in my city ?
3. Or should I take risk of doing dis-assembly of it ?
4. Or Should I buy a LCD+Digitizer from internet and do replacement by local mobile repairs?
PS: I bought it 2 months ago from ebay and it doesn't have manufacturer warranty. And sorry for my bad english
Bring it to an authorized repair shop or contact HTC and ship it in. Make sure that it is actually a hardware problem, and then have them replace it.
Try not to replace it yourself, there is a ton of adhesive and you might damage the phone as you need to use a suction device to remove the screen.
(I do believe the buttons are part of the lcd/digitizer assembly, but you might want to check with HTC support)
If you want to save money, https://play.google.com/store/apps/details?id=com.fatedevgroup.softkeyenabler&hl=en will get you on screen buttons
Hi. I had this issue for a long time now, I tried a lot of things but I stuck and I don't know what to do. I bought a Lenovo P780 in February, ROW version (if I remember ROW123 4GB), imei starts with 860. I installed a custom rom (I checked and it is for this ROW) and it worked fine. One day in May I noticed that I got no signal. Then it came back. Than it went away. It is still the problem of course.
I never dropped nor flooded the phone. I tried installing other GSM modems as people on forums suggested, I tried a lot but none of them worked. I was angry so I took it apart, and saw that the outer shell of the antenna cable was damaged, so I ordered a new one, but it didn't help. I checked the whole PCB under a magnifying glass so maybe I would find any sign of damage so then I can replace the faulty component (I have access to do that), but I found nothing.
I tried it with different SIM cards. Then I found out, that in the Settings menu in the about phone section you can see the exact signal strength (it usually says 0dBm 99 asu which is absurd). You can only access it when you have a SIM card in the device but when you are in, you can take it out and you can still see the signal strength. It sometimes finds signal, but it is very rare.
What should I do? I have no money to replace the motherboard, and of course I have no warranty. Is there a chance that my problem is software-based, or it is surely hardware stuff? What can I do?
Buy a different brand phone
My suggestion is to get rid off that phone as it is and change towards buying anything but Lenovo, sell this one and buy any other brand.
If you stick to chinese buy Huawei or One Plus One etc.
Good luck1
nandude said:
Hi. I had this issue for a long time now, I tried a lot of things but I stuck and I don't know what to do. I bought a Lenovo P780 in February, ROW version (if I remember ROW123 4GB), imei starts with 860. I installed a custom rom (I checked and it is for this ROW) and it worked fine. One day in May I noticed that I got no signal. Then it came back. Than it went away. It is still the problem of course.
I never dropped nor flooded the phone. I tried installing other GSM modems as people on forums suggested, I tried a lot but none of them worked. I was angry so I took it apart, and saw that the outer shell of the antenna cable was damaged, so I ordered a new one, but it didn't help. I checked the whole PCB under a magnifying glass so maybe I would find any sign of damage so then I can replace the faulty component (I have access to do that), but I found nothing.
I tried it with different SIM cards. Then I found out, that in the Settings menu in the about phone section you can see the exact signal strength (it usually says 0dBm 99 asu which is absurd). You can only access it when you have a SIM card in the device but when you are in, you can take it out and you can still see the signal strength. It sometimes finds signal, but it is very rare.
What should I do? I have no money to replace the motherboard, and of course I have no warranty. Is there a chance that my problem is software-based, or it is surely hardware stuff? What can I do?
Click to expand...
Click to collapse
kozav100 said:
My suggestion is to get rid off that phone as it is and change towards buying anything but Lenovo, sell this one and buy any other brand.
If you stick to chinese buy Huawei or One Plus One etc.
Good luck1
Click to expand...
Click to collapse
Yes, I did that. I discovered that the CPU's soldering was faulty. I guess the BGA couldn't stand the heat. I sold the parts and bought a Huawei.