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Hi!
There is a problem with my Honor 7 fingerprint scanner. It does not react when being touched and gives false touch vibration 5-10 min after. When trying to add new fingerprints, it gives "Do not move finger on scanner" notifications continuously without even touching anything. When all the actions for scanner are disabled, the phone starts to overheat and drains battery to 0% in about 5h. Even when disconnecting the fingerprint sensor from the phone, still get the same continuously pop-uping notification when trying to add new fingerprints. I did not see any water damage, when opening the phone, but I have used it with wet fingers on some occasions.
Anything else I can try to overcome the overheating problem?
p2tsu said:
Hi!
There is a problem with my Honor 7 fingerprint scanner. It does not react when being touched and gives false touch vibration 5-10 min after. When trying to add new fingerprints, it gives "Do not move finger on scanner" notifications continuously without even touching anything. When all the actions for scanner are disabled, the phone starts to overheat and drains battery to 0% in about 5h. Even when disconnecting the fingerprint sensor from the phone, still get the same continuously pop-uping notification when trying to add new fingerprints. I did not see any water damage, when opening the phone, but I have used it with wet fingers on some occasions.
Anything else I can try to overcome the overheating problem?
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Click to collapse
Is there any specific area it overheating?? From battery side or board??
Look for some corrosion on the board or on components
The whole phone is overheating, but the heat seems to be locating from the battery side.
There is no corrosion on the phone or other components.
p2tsu said:
The whole phone is overheating, but the heat seems to be locating from the battery side.
There is no corrosion on the phone or other components.
Click to expand...
Click to collapse
It could be a faulty battery then..
Hi.
My z4 lte has recently started shutting down without warning after displaying the flat battery icon. This happens even if the battery has over 80% charge. The tablet reboots normally if left for a few minutes and on restart will show the same battery level as before the shut down. This is happening more and more frequently.
Any ideas or suggestions?
Thanks.
thintin said:
My z4 lte has recently started shutting down without warning after displaying the flat battery icon. This happens even if the battery has over 80% charge.
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Click to collapse
This is definitely a defect battery. Have the same problem on my tablet Z4 and before already twice on Xperia Z1compact. The phone battery was replaced the second time now. With new battery no problems anymore. (seems to last arround 2 year, then it starts again. Looks like poor battery management by Sony )
Only solution: replace battery!
Sadly the only way is by disassembling the display:
https://de.ifixit.com/Anleitung/Sony+Xperia+Z4+Tablet+Repairability+Assessment/79131
Did anyone managed this successfully without breaking the screen? I replaced a broken screen on my Tablet Z and its true, they are really delicate and new screen is ~250 Euro! (Battery ~50 Euro incl. glue).
(By the way: the Tablet Z battery is still fine, and even if, it would be accessible through back cover. Was really the best tablet by Sony. @Sony: WHERE IS THE SUCCESSOR of TABLET Z4??? How about skipping at least once this useless "every 6 month a worse phone" cylce (XZ2: :crying: :silly: ) and develop instead a new tablet!? )
allofmex said:
Did anyone managed this successfully without breaking the screen?
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Click to collapse
Since my battery became almost unusable, I took the risk to replace battery myself.
And it was successfull!
Here some hints:
First of all: Make sure you have good tools, mainly:
Only use a very thin and a bit flexible opening tool (I used iPlastix tool, the plastic version)
Use a good heatgun with small opening adapter (< 1cm). Make sure the heatgun can be set to low temperatures, I strongly suggest one that can be set to exact values (In my case "Steinel HL 2020E", can be configured from 80 degree upwards in 10 degree steps)
Build yourself some kind of stand for your heatgun that you can heat the display while having both hands free (I used a small camera tripod and tape)
If you do not have ordered the new adhesive yet, use a internet photo of it to see where the adhesive is located and how deep it reaches. (the edge where adhesive does not reaches edge is headphone jack). Choose a spot with thin adhesive (not an edge) to start.
Heat up this spot (in my case: heatgun on 90 degree celsius, 5 cm distance from outlet to surface) and while still heating, carefully insert opening tool. Do not use force, heat longer if needed. Than slowly move around the tab by heating and dragging your tool. (here the mentioned stand for heatgun helps a lot). After you opened some way, insert a thin piece of platic to prevent adhesive from reattaching.
Again: NO FORCE. When old adhesive is warm enough, you can easily "cut" it with your tool. If you still feel resistance, you need to heat more. (on spots with larger adhesive areas I switched to 100 degree). When you are around, the display should be able to lift, if not, heat again remaining spots and use opening tool until screen can easily be detached. (never bend/pull) There is not adhesive in middle of display, only at corners as you see on new adhesive.
The opening itself was surprisingly easy. More annoying was to remove the old adhesive remainings. I tried isopropylalkohol, but it did not help much. Most of it was removed with some plastic blade, mooving/scratching/pusching permanently against the end of the adhesive trail. It takes time, but it removes it in 0.1 mm steps (maybe someone has a better idea).
Make sure that you work on good mat/base that you can put force without bending screen. I had some sticky but flat remainings on display surface, but this should not be problem.
Removing battery adhesive: use colored edge of pull tab ONLY to grab it. As soon as the white part gets visible drag always on the part that is just coming out behind battery. The first tab teared for me because I did it wrong and it was difficult to remove the remaining. The second tab could be removed completely with ease. (How to detach the cabling, see the youtube teardown videos)
At this step I suggest to replace the main camera lense if the lense coating is broken (as usually on Sony ). Do not remove lense from inside, only the round part gets replaced. Heat up lense and push from inside outwards! (see attached photo)
Replace pull tabs and battery, reconnect cable and TEST tablet before attaching new adhesive! (you may use sony test menu by calling *#*#7378423#*#* in phone app)
Another tricky part is to apply the new adhesive. You have only one chance, as soon as the adhessive touches a surface it sticks, if you try to detach it again it will stretch and stay stretched, so better don't try. Seems the adhesive has to be applied to display first, so detach cable of display, test carefully how to hold and handle before removing plastic covers of adhesive and then: good luck... (Result was "almost" ok in my case. If result is tolerate able, keep it that way. Trying to change again will just worsen the result. Cut parts sticking out display edges)
Reconnect remaining display cable, test functionality again and glue the other side.
Congratulations, you got 2-3 years more of tablet lifetime. Lets hope the guys at Sony get it done to bring a successor until then...
I succeded open my tablet and replace battery.
Now it does not power up.
The red led is lighten up, blinking 4 times, ligten up again and the went off. Repeating again and again after some while.........
I cannot get in touch with the tablet again. I cannot see anything broken or destroyed by open it.
Is the led an error code?
Is there any reset button hidden somewhere?
Sorry to hear ?
Did you tried hard reset? (Press Volume up + Power for more than five seconds)
What happens if you boot to FastBoot, does USB connection shows up on computer at least?
Is device charging?
Is screen backlight starting? (Try in dark room, you should see at least a little lightning if backlight switches on)
Did anyone faced issue - on wireless charger, screen touch response is bad or weird to operate. Note: it happens only if i enabled high touch sensitivity option.
YES!!!
I haven't tried shutting off the screen sensitivity though. I just got a wireless car charger/cradle, so now I have a reason to be using my phone while it is wirelessly charging. To me it seems to be related to the section of the screen. The top half of the screen seems to miss occasional touches, but that even happens when it's not charging sometimes. Bottom half of the screen is OMG awful. Missed touches, extra touches, touches randomly off in some weird direction, long presses when I didn't long press, moving/dragging when I didn't move. Try typing on the keyboard if you want a fun time. It took me *SEVEN* attempts to type "Here". It kept grabbing the wrong keys, hitting the spacebar in the middle of the word, just bizarre random stuff. I couldn't even recognize what was being typed...
that's not a bug my friend - that's an issue normally associated with a cheap wireless chargers or non-OEM wireless charger.
Tried this on my 9+ with a Ravpower fast charger and have no issues with touch screen sensitivity or typing on the keyboard.
Yes! Holy ****!t, thought I was just imagining things. I experience it with my OEM 2018 Convertible wireless fast charger.
Sent from my SM-G965U using Tapatalk
Yeah, happens with me when I use a cheap wireless charger.
I use an iottie fast wireless charging cradle in my car and often the touch screen is finicky. I haven't tried turning off touch sensitivity.
jazzespresso said:
that's not a bug my friend - that's an issue normally associated with a cheap wireless chargers or non-OEM wireless charger.
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Click to collapse
Do you know what scientific or engineering principles are causing this to happen? Is the electromagnetic field generated by the induction coils somehow interfering with the screen's capacitive interaction? I have only used my finger. I should try a stylus to see if there is a difference.
---------- Post added at 03:54 PM ---------- Previous post was at 03:48 PM ----------
I have a developer option turned on to draw a small dot to indicate where you touched the screen. Yesterday I was watching as I repeatedly touched the screen in the same spot. I did not move my finger from that spot. Just lifted and tapped over and over. The dot drawn moved around quite a bit. Mostly high or low, by about 1/2". The phone was somehow getting false readings about where I was touching. No wonder I had such issues with the keyboard. I have noted that pressing harder with my normal use, *does* improve its ability to sense the touch accurately. I was not really testing that with the repeated touches though.
Brokk said:
Do you know what scientific or engineering principles are causing this to happen? Is the electromagnetic field generated by the induction coils somehow interfering with the screen's capacitive interaction? I have only used my finger. I should try a stylus to see if there is a difference.
---------- Post added at 03:54 PM ---------- Previous post was at 03:48 PM ----------
I have a developer option turned on to draw a small dot to indicate where you touched the screen. Yesterday I was watching as I repeatedly touched the screen in the same spot. I did not move my finger from that spot. Just lifted and tapped over and over. The dot drawn moved around quite a bit. Mostly high or low, by about 1/2". The phone was somehow getting false readings about where I was touching. No wonder I had such issues with the keyboard. I have noted that pressing harder with my normal use, *does* improve its ability to sense the touch accurately. I was not really testing that with the repeated touches though.
Click to expand...
Click to collapse
you have to ask yourself two things;
1. is screen touch response happening while it was on wireless charger?
2. or is screen touch response happening while using your phone regularly even without not on charger?
if your answer is #2 or both #1 and #2, you should contact where you bought and exchange it. However, if your issue is #1 only, I would try to use different wireless charger to test and see.
Also keep in mind that Exyons version fo S9/S9+ has plagued with touch screen issues (i do believe this is also officially confirmed by Samsung);
https://www.techradar.com/news/sams...ouchscreen-dead-zones-heres-how-to-test-yours
jazzespresso said:
you have to ask yourself two things;
1. is screen touch response happening while it was on wireless charger?
2. or is screen touch response happening while using your phone regularly even without not on charger?
if your answer is #2 or both #1 and #2, you should contact where you bought and exchange it. However, if your issue is #1 only, I would try to use different wireless charger to test and see.
Also keep in mind that Exyons version fo S9/S9+ has plagued with touch screen issues (i do believe this is also officially confirmed by Samsung);
https://www.techradar.com/news/sams...ouchscreen-dead-zones-heres-how-to-test-yours
Click to expand...
Click to collapse
I have Snapdragon.
Initial testing on another charger seems better (not perfect). I am going to play with placement to see if that makes a difference.
same problem here. running on stock fw with stock wireless charger... tried several version of samsung wireless chargers and all results the same
I have same issue https://forum.xda-developers.com/ga...rger-screen-sensitivity-t3779923/post76283002
Better to avoid wireless charger. So that screen can b saved in long run.
command said:
Better to avoid wireless charger. So that screen can b saved in long run.
Click to expand...
Click to collapse
For my car, I just leave the phone in the wireless charging cradle, since I don't use the phone while driving, then if I need more than incidental contact with the screen while it's in the cradle, I just unplug the power source and the touch screen goes back to normal behavior. Annoying, but not unworkable.
I prefer the wireless charging because of past phone experiences where the charging port got damaged from needing to plug/unplug the phone so often. Unplugging the power source for the cradle is easy and not so likely to damage anything.
I had a fun one today I took my phone *off* the wireless charger and the touch screen went crazy. The dot showing where I was touching at the moment, was flickering down by the home button like it was the fire button on a video game. However, I wasn't touching the screen at all. So I shut the screen off (because no matter where I touched it just ignored me and kept mashing the home button). Then tried to turn it back on and nothing would happen. Normally when I get stuck like this I put it on the charger and it forces the screen on. I did that and the screen came on but it still wouldn't take my touch. So I finally had to reboot.
Did anybody was able to put the finger on the problem about touch issue with wireless charging?
(Finger on the problem...... did you get it..ok ok, need more beer)..
Again, we are taking about problem #1-: screen touch response problem happening only while it is on wireless charger!)
How does a "cheap" or none OEM wireless charger would affect the Touchscreen?
Mag field too strong? Android software disable touch while wrls/charging?
Can we lower some parameters on the phone trying to alleviate the issue?
I normally pick up my phone from the charger to use it, but out of curiosity, I just tried it on the charger, and have no problems. The charger is a Pleson Fast Charge model C500.
Try with high touch sensitive enabled. You might get issue.
sometimes the indisplay Fingerprint sensor stops working at all.
The display wont recognize any touch and stays black.
If i push the Power button it starts working again.
This happens sporadically, 1 -3x a day
Did anyone had the same Problem?
Any suggestions?
Thanks for reading....
No one?
kamueone said:
No one?
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Click to collapse
I haven't seen this problem. I use face unlock along with it and it usually recognizes my face before I can even scan it.
When the screen is black, you can put your finger on the display and some glowing circle Appears. This does not appear to me at all. The screen just stays Black.
Thx for the information.
kamueone said:
When the screen is black, you can put your finger on the display and some glowing circle Appears. This does not appear to me at all. The screen just stays Black.
Thx for the information.
Click to expand...
Click to collapse
Maybe your fingerprints got erased somehow? Does your phone display a fingerpring icon on the screen a second after you turn the screen off?
Sent from my LYA-L29 using XDA Labs
Yes the second I turn if off it shows a fingerprint sensor. Just after a while it won't toggle the sensor if I touch the display. It's like the fingerprint sensor is deactivated. The second I turn the display on manually it appears again.
Hello! I've got the p20 pro and now I'm testing mate 20 pro. Sometimes I'm not able to unlock the mate with my fingerprints at all. Same finger. The p20 works perfect, just touch and unlock. Mate sometimes I have to touch it 3-4 times before it unlocks , sometimes it doesn't unlock at all? Is that normal? The display was exchanged already because of this issue.
I believe you guys are not the only one. This on screen finger print is not reliable. I guess because they are new and will improve over time. Personally I just use face recognition than finger print. They are a lot more faster and accurate to unlock.
I know it's an old thread but it's happening to my M20Pro right now! It's awful! The screen is protected by a tempered glass made by Spigen (maybe this glass has issues?). I reconfigured the fingerprint and I touched almost 50 times until the phone captured the fingerprint! What's wrong with that sensor?!
I had problems with glass protector, if you can get plastic film it is fine, glass you will have problems....this was my finding
Possible brightness/proximity sensor issue
kamueone said:
sometimes the indisplay Fingerprint sensor stops working at all.
The display wont recognize any touch and stays black.
If i push the Power button it starts working again.
This happens sporadically, 1 -3x a day
Did anyone had the same Problem?
Any suggestions?
Thanks for reading....
Click to expand...
Click to collapse
If you still have this phone and problem: I have a P30 Pro, and/but the reason I write here is because our phones share the fingerprint technology, and I didn't find anyone mentioning this problem regarding P30 Pro. So:
I have the same problem - seemingly sporadically the fingerprint sensor (or screen) wont react until I press the power button. Then I noticed that when the brightness/proximity sensor (located near the top right on the P30 Pro, and next (right) to the upper speaker on Mate 20 Pro) was covered, the screen would get unresponsive. I guess this is by design, to not accidently let your phone come to life in your pocket. The problem was/is that the proximity (?) sensor is way too sensitive - any obstruction at about 2 cm (0.8") above the sensor(s) will trigger this behaviour. I also think it can be triggered under other circumstances; I had som weird fingerprint/screen behaviour in a store with a high and very dark ceiling, but I have to test this again, so don't take my word for it.
Anyway - if anyone is having sporadic problems - see if this could be a reason.
Edit: Well, sometimes my screen is just totally unresponsive even without sensors blocked, so ... I noticed it a couple of times after digging my phone out of my pocket, suggesting it could still have something to do with the sensors turning the screen (functions) off. I'll try to see if I can make it behave the same way in other scenarios.
I have also been experiencing similar problems on my mate 20 pro, But mine is more of an accuracy problem. sometimes its on point and registers instantly. and other times it just doesnt at all.
However i have noticed that in extremely bright weather i have more issues, fingerprint doesnt read at all, and face ID is also doesn't. My finger print issues have started only after EMUI 10.1, so i suspect that it could possibly be a software related issue
Just got a new Tab S7+, and I found that I was getting a heck of lot of repeating keys from the Samsung keyboard and the Gboard keyboard. Hadn't noticed any problems elsewhere.
I finally got fed up with it and get Touch Screen Test, and I can see clearly there that the screen is registering a touch with my finger maybe 0.5mm away from it. That fits with what I see on the keyboard, where I can get keys to fire with tiny finger movements just away from the screen.
I can't find any settings in Android 10 to adjust this. It's surprising for a table that's been out of the box a couple of weeks, and possibly it's worsening.
I had an idea after I'd posted this - I often use the tablet connected to the 25W charger that came with it. If I use it on battery, the problem is much diminished , and possibly gone. Electrical interference, then???
Is it a return-as-faulty, would you say? Any test options I can use to help with this?
Thanks
Alan
Latest update fix that issues
bicubic said:
Latest update fix that issues
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Click to collapse
Many thanks for that. My tablet has T970XXU1AT12 / T9700XM1AT12, no update showing as of a moment ago. I expect it will reach the UK soon and I will be able type!!
I think the touchscreen of this tablet does have some interesting behaviors, as I've also observed some touches being registered when my finger was a still a short distance away. I suspect this might have something to do with palm-related gestures (like palm swipe from right to left for screenshooting).
I play rhythm games on this tablet mostly, and I'm seeing some cases of taps not being registered properly (unexpected misses), which happened less often, when I was playing those same games on my phone (before migrating them to the tablet).
I don't constantly put the tablet on the charger, as I've lessons learned from my previous tablet, Pixel C, whose battery went swollen after having placed it constantly on the charger for quite a long while that I ended up replacing the swollen battery with a new one by myself. While it was a lot of effort in overall, but the swollen battery had made the glues between the screen and the chassis mostly visible, that removing the screen became much easier.
I couldn't confirm this issue.
I've installed a safety glas on top of the screen. Fingerprint and S Pen is working but I've no issue's with a to sensitive Display
Update came yesterday. Still not fixed
I'm also using a tempered glass screen protector and my personal experience with such protectors on different devices has always been positive, with few issues directly related to such protectors as long as the quality appears to be good enough. I don't connect the charger while gaming, but I do attach a Type-c audio cable for connecting the tablet to desktop speakers.
On the other hand, some lower quality charging cables would certainly cause issues with touchscreens regardless of device. Usually with stock chargers and cables (or those from very reputable vendors) you can mostly rule out this possibility.
EDIT 6: Moved the rest of the issues I'm having to a separate thread.