Before I start, this phone is a T-Mobile (SM-N910T) running Android 6.0.1
It was bought from eBay. So no warranty.
The screen is half normal (the left half) and the right half is shades of grey (please see attachment).
Here is what I did to troubleshoot:
1- Took the motherboard out and connected it to a fully working screen. I got the same symptom (like you see in the attachment).
2- Connected a different motherboard to the original screen. I got a normal display.
I got to the conclusion that the problem is not with the screen but with the motherboard.
Is there any way to fix this motherboard?
Thanks for any suggestions.
over on the general note 4 forums i found this link, https://forum.xda-developers.com/note-4/orig-development/adreno-420-drivers-note-4-t3546566
mhmdalsfas has ported qualcomms' driver update for our chips and he compiled it as a TWRP flashable .zip for all the snapdragon variants. If you have physical hardware issues going on this may not help but I hope that it does help you though.
---------- Post added at 03:56 AM ---------- Previous post was at 03:54 AM ----------
just for good measure have you reflashed the phone via ODIN? if not see if that maybe helps? it would rule out software related problems
Thanks for your suggestion.
I actually did reflash using Odin but that did not help at all.
Ty
I have the exact same thing happened and what you have is a hardware issue .... but I was able to fix mine.... you have two plugs that connect your screen to your motherboard... there is a thin ribbon and a larger one.....the bigger plug is the one for your display... it's lined with 20 million microscopic little pins it only takes one time when you pop that plug out to offsetting one of those pins for when you plug it back in it's not lined up with the other pin to the plug that you're plugging in.....how I fixed it was you want to get yourself a good magnifying glass and the smallest sewing needle you can find and search each pin until you see the one that doesn't match the others obviously.... and try bending it or moving it back where it should be and carefully put your screen back in.....I realized I got very lucky when I was able to fix mine and I hope you have the same luck
Related
Ok guys, need some help here....
Got a HTC TyTN II.... Worked great for like 8-10 months, then started having issues with the screen.
Sometimes when brining it out of sleep, the colors are all jagged, and the screen is out of sync and staticky (kind of when you have a VGA monitor and you half pull the cable out of the connector)...
So I'm assuming its a problem with the ribbon cable coming loose (if thats how its connected).
Another thing too, the memory card slot doesn't work anymore. This just re-inserts the fact the ribbon cable or whatever for the front of the device is loose.
Does ANYONE know how to fix this? Unfortunately I tried to rip the phone appart myself and voided the warranty...
Anyone else have these problems?
Sometimes the screen works, sometimes I have to put it back to sleep, wait 5 minutes, and wiggle the front. hit the power button and it works. This has happened across 3 firmware updates so it's hardware for sure....
It does sound like a piece of hardware is loose. The fact that your mem card is not working further suggests this. I took apart my Tilt yesterday to replace the screen which no longer responded to touch, although it still worked with hardkeys. As part of the process I noticed the mem card slot was integral to the screen components. In other words, the screen and attached component, including the mem card slot is loose. For video as to how to pull apart your phone, go here. I have never done this before and this video worked beautifully. Also, search the forums for the HTC Service Manual and go through this page by page, step by step matching it against this video (if yo have dual screens even better) and you will come out fine. I did!
http://www.fonlogix.us/Video-Instructions_ep_34.html
You can buy replacement screens and the tools from the same website. Otherwise try eBay, which is what I did. Definitely get yourself a strong pry tool. The one I bought from eBay disintegrated in the first couple of minutes. Luckily there was just enough of tip of the pry tool for me to use brute force to pry open the case without damaging the phone.
thnx bud, ill be posting my results.
So I've installed a shiny new digitizer on my D3 and I've barely been able to boot since. At first nothing but the back-light came on except one out of ten tries actually got me to the lock screen where it appeared to have frozen. Took it apart and put it back together again. At this point only the charging led comes on, screen is blank. Re-assembled again making damn sure all cables were properly inserted, same thing. Power+M does nothing. I confess I did rough up the cables a bit, looking under a magnifying glass I don't see any obvious tears however.
Anyone else been through this?
...i bought the same droid with new digitizer for parts on ebay.
Problem was the Flex Ribbon Cable.
On ebay is opprox for $30.
You had issues with booting also?
my problem was ...sometimes boot with display white, sometime white
New flex cable did the trick!:laugh: I have 890 installed right now, could someone kindly remind me of the typical procedure for installing Maverick or Eclipse from here? I know this ususally involves un-rooting, bootloader/recovery but I'm not sure which guides to follow and in which order. Thanks.
EDIT:Nevermind, I found the information in the post next to this one.
Hi,
Brought the Sony Xperia ZR a few months ago.
It was giving problem with Bluetooth right from the beginning but haven't bothered about it as I used it rarely.
The wifi initially was working fine, but few days ago it just refuse to turn ON.
When tried to turn ON the wifi using ON/OFF slider it hangs up showing pale blue color & comes back to OFF state.
The exact same thing happens to the Bluetooth slider as well. (See attached screenshot)
Searched in some forums & see many people faced similar problems with their device as well.
However no one have given proper solution for it.
Tried everything from Re-boot, Factory Reset & Phone repair option using PC Comparison...None have worked to resolve the problem.
Some people say it is hardware issue & needs replacement of device however others say they had same problem come back even in replaced phone as well.
There was something mentioned about region code reset mentioned here
android.kul.is/2013/09/sony-xperia-zr-wifi-problem.html
but it looks unverified.
PLEASE provide solution for this issue.
Thanks in Advance.
There are other people who have similar issues, including me. Symptoms vary, but ultimately we are unable to use wifi and BT.
I have an additional issue with no USB connection to PC
Sent from my C5502 using XDA Free mobile app
Will downgrading work?
genieass said:
There are other people who have similar issues, including me. Symptoms vary, but ultimately we are unable to use wifi and BT.
I have an additional issue with no USB connection to PC
Sent from my C5502 using XDA Free mobile app
Click to expand...
Click to collapse
One of my friend is using the same phone for over a year now & have not upgraded to Kitkat & never had any issue.
Do you think downgrading the phone from Kitkat to JelllyBean will resolve this?
Don't know. People say that things work igf you poke the phone at right places. (is the ZR a human to get excited when fingered right?)
I had some success doing it and wifi worked for a few hours. This is obviously a hardware issue.
Sent from my C5502 using XDA Free mobile app
velasoraptor said:
Hi,
Brought the Sony Xperia ZR a few months ago.
It was giving problem with Bluetooth right from the beginning but haven't bothered about it as I used it rarely.
The wifi initially was working fine, but few days ago it just refuse to turn ON.
When tried to turn ON the wifi using ON/OFF slider it hangs up showing pale blue color & comes back to OFF state.
The exact same thing happens to the Bluetooth slider as well. (See attached screenshot)
Searched in some forums & see many people faced similar problems with their device as well.
However no one have given proper solution for it.
Tried everything from Re-boot, Factory Reset & Phone repair option using PC Comparison...None have worked to resolve the problem.
Some people say it is hardware issue & needs replacement of device however others say they had same problem come back even in replaced phone as well.
There was something mentioned about region code reset mentioned here
android.kul.is/2013/09/sony-xperia-zr-wifi-problem.html
but it looks unverified.
PLEASE provide solution for this issue.
Thanks in Advance.
Click to expand...
Click to collapse
It's a hardware fault. There's a flex cable attached to the motherboard that comes loose and this leads to bluetooth and WIFI problems. Bluetooth seems to be the thing that goes first which is what you've seen people complaining about.
You can fix (at least temporarily) by pushing the flex cable in.
1. turn off phone
2. take out battery
3. carefully peel up black adhesive tape that was underneath battery. You only need to peel up top right corner near battery connection.
4. Underneath you'll see flex cable going into main body toward camera.
5. Carefully push this in or get something very thin and flat and carefully slide in under flex cable toward camera.
6. Reassemble and see if it worked.
I haven't had bluetooth in ages. Then my 2.4 WIFI dropped out like yours and I could only use 5G WIFI. FM radio also stopped working. I looked at the disassembly manual and worked out it must be that flex cable as pushing in the body below the flash fixes bluetooth/WIFI/Radio temporarily. I tried pushing flex cable in and voila FM Radio and WIFI started working. A bit more wriggling and bluetooth came back on.
However, it seems to keep coming loose again and so I'm going to have a go disassembling fully soon to see if I can make a permanent fix. Just waiting on replacement glue strips from China for underneath the screen.
It's just a poor quality connector that comes loose. It would be an easy fix if you could access the insides but because it's waterproof the only way to get in is removing screen etc.
Ok. Bad news sorry.
I opened up the phone and had a go reconnecting the flex cable. It didn't fix Bluetooth.
It did fix the 2.4g wifi but only temporarily again.
I think it must be a problem on the motherboard.
Sorry. I really thought I'd figured it out.
sad
:crying::crying:
I felt light of hope but all in vain. I knew that it has a motherboard problem that cant be fixed. Sometimes the phone gets restarted several times it self to activate 2.4 Ghz wifi. It is mother board problem. now the only way of using wifi is either purchasing 5GHz wifi router or creating 5Ghz wifi hotspot through pc or any andorid cellphone.
you should try flashing last version of 4.3 n see if BT n WiFi work as u want
Already tried. It's a hardware problem.
Actually I have another idea. I've noticed that the second Mic doesn't work very well. There's two circuit boards inside, one with Mic and other stuff on it and then the main motherboard. They have two contact points that are just touch contacts, not hard connections. There's shiny metallic squares that make contact. I wonder if they're the issue? It would explain why pressing in that place under the flash activates Bluetooth. However when I looked at them when open I couldn't figure out a way to press them together any closer. I'm going to have another go later today.
---------- Post added at 07:54 AM ---------- Previous post was at 07:51 AM ----------
In saying that, they're nowhere near the Bluetooth antenna. The Bluetooth antenna is actually under the top left corner of the phone when looking from battery side. You can access it by increasing the torx screw and prying up the waterproof cover. The cover has some glue stuff underneath to keep waterproof.
---------- Post added at 07:55 AM ---------- Previous post was at 07:54 AM ----------
Removing not increasing torx. Stupid autocorrect.
Ummm I just flashed stock 4.2 and wifi is fine. 4.3 wifi is dead. 4.4 is dead. What did they change at 4.3?
Bluetooth still not working on 4.2.
Silverdace said:
Ummm I just flashed stock 4.2 and wifi is fine. 4.3 wifi is dead. 4.4 is dead. What did they change at 4.3?
Bluetooth still not working on 4.2.
Click to expand...
Click to collapse
Oh I don't know. 2.4 now working fine after flashing 4.4 again.
It's too unpredictable. However, Bluetooth is definitely dead on mine.
Silverdace said:
Oh I don't know. 2.4 now working fine after flashing 4.4 again.
It's too unpredictable. However, Bluetooth is definitely dead on mine.
Click to expand...
Click to collapse
wifi sometimes gets connected for few hours. After that it again dies
That is work for me
Same problem with me bro.Then i will flash my phone with flashtools and then its works fine
Ok I've figured out the Bluetooth
Just like the WiFi the problem is a poor connection to the bottom board which is free to float around. It was an Idiot who designed this connection, bottom board should have been sitting on plastic shelf or spacers.
I've attached two pictures showing the pin 1 that needs to contact the conductive plate 2.
I fixed by placing small stacks of the screen adhesive under the four corners of the floating bottom board 2.
This forces it up to make a better connection with top board 1.
Obviously you need to remove screen to do this.
However, it may be possible to fix by jamming a small rigid piece of plastic in the top of micro usb slot above the jack as that's the corner of top board that needs to be forced down.
Another alternative maybe to open the corner from the back and try and force the bottom board against the top. There's two screws and some prying to do there.
Also, in addition to the adhesive spacers, I suggest placing some copper tape on the conductive square (2) to improve reliability of the connection. Similarly with the wifi squares which are on opposite side and corner of floating bottom board (2) to the bluetooth square.
My Bluetooth and wifi are now fixed. Yay.
Hi there can anyone help me please on this matter.
My wife has a HTC One M7. last week the phone fell in to the bath. I managed to open the phone up and clean it.
The phone was taken apart and cleaned correctly using the correct circuit board cleaning solution (sorry cant remember the name).
I then ordered a new battery as the old one was not holding full charge. I also ordered a new screen + digitizer as the old one was cracked.
I have put everything together and charged the phone.
The phone charges correcrtly and has no problems at all.
When i switch on the phone it starts as normal and makes normal sounds etc BUT the screen is dead.
There is NO life in the screen at all even though its a new screen etc.
I know that the old screen is working and even using that i still get nothing.
Has anyone else come across this issue ?
Are there any guides to test the screen driver IC etc ....???
Thanks for your help in advance
It seems like that you have got a faulty screen.
amebb said:
Hi there can anyone help me please on this matter.
My wife has a HTC One M7. last week the phone fell in to the bath. I managed to open the phone up and clean it.
The phone was taken apart and cleaned correctly using the correct circuit board cleaning solution (sorry cant remember the name).
I then ordered a new battery as the old one was not holding full charge. I also ordered a new screen + digitizer as the old one was cracked.
I have put everything together and charged the phone.
The phone charges correcrtly and has no problems at all.
When i switch on the phone it starts as normal and makes normal sounds etc BUT the screen is dead.
There is NO life in the screen at all even though its a new screen etc.
I know that the old screen is working and even using that i still get nothing.
Has anyone else come across this issue ?
Are there any guides to test the screen driver IC etc ....???
Thanks for your help in advance
Click to expand...
Click to collapse
MIght be a faulty screen as said above, maybe a broken or badly connected flex cable. And since the phone went into the bath, maybe a defective motherboard. Its very hard to tell.
as @alray said, it's hard to judge what's the cause of the dead screen, it may be one of the three causes.
so first, you can connect your old screen to the motherboard, if it can still work, to check whether the mother board was damaged or not
if the old screen can be lighten up, you can exclude the possibility of damaged motherboard.
second , you can connect your new screen to the motherboard again. Just be carefully and pay attention to the connector. Make sure it is connected correctly. If the screen can't be lighted up, you need try to use achohol or something else in a small brush to clean the connector. Handle gently to avoid damaging the IC. After that check whether the IC has lost some part or not. Then, if the flex cable or connector is fine, you can connect the new screen to the motherboard again.
finally, if the new screen still keep the same same situation. you can almost judge that you ordered a defective part.
May the steps above helps!
Hi there
the screen works fine as well as the connectors.
These have been tested on another htc one phone.
I have noticed that the motherboard connecter is damaged..... i will try to get some pics up later today.
Thanks
Hi everyone! I have a big problem with my moto x.
Two fridays ago I was walking and I tripped over an iron pívot with the bad luck that my moto was in my pocket. The screen didn't break because the knock was in the rear although the aluminium framework is slightly bent.
Well, that weekend the mobile was working well till Sunday and then, the screen started doing strange things, similar to the first photos. I remove the back case and disconnected/connected the connector that is at the bottom and the phone was working well during the week.
The problem is going worst because it fails with too much frequency and not all the times I disconnect/connect the famous connector it starts working well.
So, what do you thing it might be happening? Should I replace screen? Should I replace battery? Should I buy another phone?
I don't know if changing screen will solve the problem and I don't want to waste 100€ or whatever the screen costs. I left the photos below...
Thank you!
Edit: not all the times it fails, this post was writen with my moto
eTriix said:
Hi everyone! I have a big problem with my moto x.
Two fridays ago I was walking and I tripped over an iron pívot with the bad luck that my moto was in my pocket. The screen didn't break because the knock was in the rear although the aluminium framework is slightly bent.
Well, that weekend the mobile was working well till Sunday and then, the screen started doing strange things, similar to the first photos. I remove the back case and disconnected/connected the connector that is at the bottom and the phone was working well during the week.
The problem is going worst because it fails with too much frequency and not all the times I disconnect/connect the famous connector it starts working well.
So, what do you thing it might be happening? Should I replace screen? Should I replace battery? Should I buy another phone?
I don't know if changing screen will solve the problem and I don't want to waste 100€ or whatever the screen costs. I left the photos below...
Thank you!
Edit: not all the times it fails, this post was writen with my moto
Click to expand...
Click to collapse
It seems like lcd has been damaged, try these things too check your problem, remove back cover, unplug battery connector, unplug each and every connector and just fix it again these connectors in reverse order, you can get the help by ifix website search teardown of moto x 2014.. Plug your charger while power on and see if its same or pb is gone.. If its same then lcd connector or LCD panel replacement is only choice.
Salik Iqbal said:
It seems like lcd has been damaged, try these things too check your problem, remove back cover, unplug battery connector, unplug each and every connector and just fix it again these connectors in reverse order, you can get the help by ifix website search teardown of moto x 2014.. Plug your charger while power on and see if its same or pb is gone.. If its same then lcd connector or LCD panel replacement is only choice.
Click to expand...
Click to collapse
I did it, it failed during some more days and then it worked for 3 days. Yesterday it failed again, but after reboot it continued working...
Something i've noticed is that the last two days unplugging at 8.30h battery goes to 0 around 15.30 when it should last almost all day. I'm thinking that maybe, the battery could have been damaged and sometimes it doesn't send the correct voltage and then de screen fails? what do you think? should I try to change the battery?
Regards