Hello everyone, I have a Nexus 7 first gen, I cracked the screen and changed it, after a week the screen would not turn on and found out that the ribbon cable stopped working(my bad I guess), so I left the N7 in a box for a year after I got a ribbon cable to replace.
After turning the tablet back on, the touchscreen it's not very accurate with the touches, I noticed some stains that are hard to see, maybe some humidity or heat damaged the screen. i.imgur. com/ 8AvlB1C. jpg
What really bothers me is that whenever the tablet's wifi is on, the wifi signals for other devices are gone, and the tablet became sooo slow, I flashed it and did not help, maybe if I downgrande to 4.4 it could help, I will try that later, but could it be that?, or just the tablet too old, but even a my sister lower specs tablet runs Android better than the N7.
Related
Hello.
I was working outside for more than 8h and at that time phone was lying in the sports bag covered with some clothes. When I turned it on the battery temp. widget showed 5 degrees Celsius (in fact it was cold).
The first problem was the screen - it showed some artifacts, random RGB pixellation when waking up and while writing SMS screen just froze and only touchscreen worked, had to turn the screen off and back on to get it work.
After warming the phone to 20 degrees the screen started to work properly with no problems but 1 hour ago something started to piss me off. Touchscreen started to self-detects touch points even when I don't touch the screen. It appeared for the first when I slightly pressed "delete character" button (I use better keyboard 8). That maked touch screen to work horribly and pressing random keys near delete, 3 or 5 times per sec for a second or two...
I've already tried factory reset and even reflashing the ROM (stock nordic 2.3.4) but the problem is still occuring.
Any advice? ...
Common problem with no apparent fix.
A way you can make it better is to install Swype, which is how I've got around the same problem on my phone.
I get it in the morning after sleeping in my 24 degrees room everynight...
Normally have to bring it out of my room for 5 minutes or so and allow it to function again.. If not a restart normally works..
Phone works fine if im using it while the aircon is on though, presumably because the phone is generating heat to counteract the cold ._.
Yesterday I got pissed off, grabbed the phone and started to heat it with hair dryer and then polished it with a cloth and everything is right with the touchscreen (maybe there was some dried sweat on the screen I know some guys who had this problem and sweat was the one who caused it).
But random pixellation and screen freezes are back. I think the problem is with the screens' ribbon cable because sometimes when I slide my phone it freezes for a few secs. I remember I've slided the phone when it was very cold, maybe something wrong happened with the ribbon cable. I have to disassemble the phone and check it out.
Sounds like a trace amount of water damage perhaps from condensation while in your bag.
Fortunately NO!
The problem was with the flex cable connecting down part of the phone with the upper part. It's partially broken, probably it happened because of cold wires and my sliding.
This ribbon connects everything from the upper part (LCD, camera etc.) so it needs to be replaced. I'm gonna see if any of my towns' repair centers are able to fix it.
edit: Professional diagnosis:
Interrupted flex cable connecting upper part with the bottom part - two most left pins broken, screen shows constant "random RGB pixellation".
Bringed my XPLAY to the authorized SE repair center and waiting for the ppl there to fix my beauty...
ribbon that connects everything from the upper part to the lower part? do you mean the long and wide ribbon that is kinda folded when you open your phone? IS IT? jeez that's my problem, too. I haven't been using my phone for more than a week now.
So I have a QI wireless charger I got on amazon. It works perfect. Also use it with nexus 7. Today I noticed when my phone was on the charger, something caught my eye and my phone was shuffling through apps, opening Google now, getting driving directions and such by itself. As if someone was using the phone. Every time I put it on the charger this happens now all of a sudden. Its kinda comical. I laugh and watch what all it does each time. Any idea what could being causing this to happen when placed on the wireless charger?
Your phone is being haunted.
It could be an issue related to overheating. Was your phone got to touch when this happens ?
Sent from my Nexus 4 using Tapatalk 4
No, not more than normal using the wireless charging. It only does it when I place it on the charging pad. Its almost instant. As soon as I take it off, it stops. I don't see how the wireless charging could be causing it to perform task on its own. I'm thinking it is haunted.
Sent from my Nexus 7 using xda app-developers app
This happened to me today
I had the same thing happen to me today while using a Nokia qi charger. My phone just started registering random screen presses, which resulted in the device launching my music player and starting to play a song. Just happened the one time, though. Haven't been able to replicate it.
Yeah i've seen it twice before with the orb. I think it has to do with static electricity.
are butesQ
Same thing - I got a phone and a Qi charger from Nokia. All happens while the phone is on the charger
But.... I don't see how heat can produce text that makes sense. Text that has nothing to do with me or my apps. More details here: http://forum.xda-developers.com/showthread.php?p=45560693
thats crazy lol...
The only way to keep it from performing random task, is to lock the screen before placing it on the charger. The screen will turn on and off but since its locked, it won't actually perform various task.
Sent from my Nexus 7 using xda app-developers app
static electricity and capacitative touch screens
I have been wondering about this kind of problem, and research is pointing to an electrical interference with the digitizer.
A lot of users have posted that the phantom touches are happening on a localized strip or area of the screen. You can view this as it occurs by enabling "view touches" in developer settings; of course, some report issues so extreme (usually because the phantom touches are appearing across the soft buttons at the bottom of the screen) some might have a considerably harder time accessing this option.
I have noticed that I am able to replicate this issue immediately after charging - however, it is occurring after a wired charge, and only in the last week (I bought an N4 a over a month ago sealed NIB/HW vers.: rev_11). Because the connection between Synaptics digitizer ribbon and main board is solid, and because the touches only appear at the microUSB/charger I/O end of the device, I am left wondering if there is a contact/shielding issue going on, or if it is some other problem allowing static to build up and discharge through the digi.
More research is needed, including reviewing bug reports and logcats. What other diagnostics could be run to get more information on the electrical status of various components to help track the issue? Have any other E960 users experienced a phantom touch issue? How many have seen (maybe) a correlation between charging and the weird screen/digitizer events?
results of testing
attempted fix 1: re-locked the bootloader, then OEM unlocked, affecting a FULL WIPE of the device. RUUed from occam stock (7-zip, fastbooted everything from bootloader to radio by-the-book), beginning with old JB and then up to 4.3. the problem "quieted down" for a full five days, and then flared right back up.
attempted fix 2: pulled the phone apart, disconnected battery. cleaned the digitizer connections with 90% Isopropyl. applied a tinfoil ground, first to the metal chassis (which honestly made my armhair stand up a bit when it turned on), and then to the grounding/shielding covering the NFC pcb. the problem "quited down" for 2 days, then flared right back up.
attempted fix 3: called LG. said, "this phone's f*$#ed; here's the ESN." LG guy tells me the screen's already been replaced on this handset. it was a refurb, "but it weren't our guys what applied the new screen assembly that's giving you all the bollocks" - it was the carrier, and that warranty just went out of date yesterday. THERE IS OIL FROM SOME FINGERS making dodgy contact between the digitizer in the assembly and the chassis, and this results in RADIO INTERFERENCE THAT FLARES UP the phantom touches when there's a perfect storm of COLD (static!), VOLTAGE IRREGULARITIES (mains/cables/municipality!), and USAGE (lots of cache!)
attempted fix 4: can anyone recommend a trustworthy online vendor for a properly grounded screen assembly? I'm going to finish the teardown and replace the full assembly, and when that doesn't work out, I'm going to throw this glass static machine on the ground.
has anyone else been doing testing/have any positive results that stick longer than a business week?
screen going berserk when placed on qi charger
I have had this same issue yesterday, but only on one of my phones.
I have an E-Ceros One (Chinese MTK Octacore phone, twin/clone Ulefone U5) and my old (now my wife's) SG Note 1 (GT n7000).
Bought a qi receiver from eBay for each phone that plugs into micro usb port of the phone and receiver pad lies inside between battery and back case, and a cheap qi charger pad.
Put the receiver in the Note, chuck it on the charger & starts charging - no problems! (other than it does get a little warm when charging)
Put the other receiver in my E-Ceros One, lay it on the charger, starts charging but the screen goes berserk - definitely looks like the electromagnetic field is making the screen digitizer go crazy.
I have sort of found workaround/s though:
- either turn the phone off first and put it on the qi charger, OR
- the qi charger I have is rectangular, and if I sit the phone across the width of the charger, i.e. so the top and bottom of phone are sitting over the sides of the charger with nothing underneath, it starts charging and screen doesn't go crazy. If I wait ~30 secs I can then turn the phone so it sits along the length of the charger and screen doesn't go crazy - I'm thinking the electromagnetic field "settles" after charging for a few moments.
So yes, it's weird
The Nexus 4 isn't currently my daily driver, but I like to leave it plugged in so it's not totally dead when I decide to use it at some point in the day. I often notice that the screen is on (at the lock screen) when I haven't touched the phone in hours. It doesn't seem very consistent, so at first I thought I was just forgetting to turn off the screen but it seems to me now that it's doing this on its own. I double checked my USB charging cable and it makes a solid connection.
Does anyone have any idea what's going on here? While the Nexus 4 is an older device, it's new to me. (as is Android to some degree)
Device specs: LG Nexus 4, black, 16gb, Android 4.4.4 (rooted)
Hey Guys,
My release edition S7 Edge started acting up last Sunday. As I was using the phone, it noticed the display to have strange, colored barcodes appearing as smudges on the screen. Pink/purple seems to be the dominant color type and they are most severe when texts are displayed on screen. The phone seems to get hot quicker than normal, and gets hotter than normal when under toll. The screen usually DOES NOT TURN ON AT ALL when the phone is warm/hot. Everything about the phone still works, all functions work.
It has been a few days since I encountered this issue and it has not subsided. What I did noticed is that if the phone was hot and the screen does not turn on, I could cool down the phone externally via air conditioning vents and it would turn back on when its cool enough. The barcode artifacts are also less prevalent, to non-existent when the phone is cold to touch.
I initially thought this to be an display panel issue that needs replacing. Out of warranty repairs is going to be about CAD $340. With the cooling down work around, I am hoping it may be a less expensive to fix issue.
What do you guys think? Help me out!
TL;DR. Phone started having pink and purple barcodes all of a sudden. Works perfectly with the barcode. Display wont turn on when warm/hot. Everything is back to normal if the phone is cool/cold to touch, until it starts warming up due to usage.
My galaxy s5 started acting up a month ago. The screen will flicker green/yellow then go black, or stay black entirely. It got a lot worse recently where it will only work hitting the power button 1% of the time. Is this a hardware issue? Or software?
When the screen dims before sleep, it spazzes out too. I've noticed it works better when it warms up from charging too. But still fails to display way too much. It still registers touch when black. I replace the battery a few months ago BTW.
If the device has no hope, can you guys reccomend a good cheap phone?
Put your phone on max brightness & set your phone to never turn the screen off
Leave your phone screen turned on with max brightness for a at least a few hours
If that doesn't solve it then you may need a new screen - it is a hardware fault on these devices with these types of screens
If I were you I'd also follow the advice of
TheFixItMan said:
. I'd make sure to run a slideshow in your gallery while having your screen at max brightness though as this may reduce the risk of having burn-in on your screen.
If all fails you could buy a new display for your S5. I did so myself recently as I kept having "snowstorms" on my display when I turned my phone/ the screen on. Worked for me, managed to get a new and genuine one from a reputable seller on eBay. Hope you won't have to resort to the latter though.
Click to expand...
Click to collapse
@TheFixItMan thanks for the advice, I tried it last night, and it didn't improve at all. Is there any possibility that the device isn't giving the screen enough power? Because I have better success when its plugged in. What do you think caused this to happen after 5 years?
@James160103 Thanks, I tried it and it didn't work. I'm exploring all my options. For $10 more then an OEM gs5 screen, I can get a gs7.
Perhaps it's got something to do with your new battery then, did you buy a genuine Samsung battery? How about sticking the old one back in and seeing if that makes a difference?
Also try using a genuine Samsung power adapter and charging cable.
It's worth a try anyway. Let me know if that made a change.
If it doesn't help you could remove the screen from the phone and press the flex cable from the digitizer downwards to see if it might be a loose connection between the motherboard and the screen that's causing the problem. I'd try that as a last resort though as you could damage your display in the process (replaced the screen myself and managed not to break anything, did it for the first time). There's lots of videos on YouTube (I recommend JerryRigEverything) that could help you out.
While this is unlikely, you may want to try before buying an S7.
Also, try booting into TWRP and playing around with the brightness settings and turning the display on and off again to see if it's some bug with the OS (again, unlikely but it's worth trying).
Please let me know if any of the oprions worked for you or made a difference, cheers.
@James160103 my old battery can't hold a charge, so I disposed of it. My new one has been fine for a few months without any problems. As far as a charger, I have a better charger then the stock, and a thick gauge nylon wrapped cord, that's been doing fine for the last 2-3 years.
The whole display issue isn't just on the OS, when I boot normal or into recovery it stays black, or flickers for a split second.
I did notice that if I hold it in front of my car vent, with full heat. Once its warm it seems to work, just until it cools off. I'm guessing its a hardware issue at this point, but I'll try to check the connection.
Thanks for your help
Facing this exact issue. It has gotten worse now.