[Q] Lenovo A10-70 (A7600-F) 'random click' issue - Thinkpad Tablet General

Hi,
I’ve created similar post also on the official Lenovo forum but from my point of view it is also worth-asking you guys here.
I would like to ask you for help / idea. We bought Lenovo A10-70 (A7600-F) ~ 6 months ago and after just few days we encountered quite ‘weird’ behavior – random clicks on the screen.
I was trying to solve the issue using just common things like: Android updates (official ones) and factory reset. Unfortunately the issue still persist.
We asked authorized service for fixing the tablet for the first time and we’ve received it back with following ‘repair method / information’:
“We made a new device settings (lead wire).”
Unfortunately the issue still persist..
The second try (in another authorized service – Arvato in Czech Republic) was declined as “not repro / sw issue”.
Basically, as you can see below the issue is about ‘random clicking’ on the screen.
It is happening on completely random basis (once a day, many times in a day), usually on the right / left corner of the touch screen. It is happening in many games and also in Android itself (visible on the second video).
All videos were captured in HayDay game only due to I lost my armies (in other games) several times before (you know, it makes not a such difference when some crops are harvested rather than all army is attacking e.g. right top corner – maybe there were some cool trees and rocks).
I cannot see similar issue on other devices (and the same games), e.g. Samsung tablet GT-N8010, Huawei cell phone Y550, Lenovo tablet Yoga 2.
Do you have please any idea how to fix it / what is the cause?
Thanks a mil
==================================
1st video: youtube.com/watch?v=GjTIr_lLbEw
2nd video: youtube.com/watch?v=8m9ZaNhyp6A

Any ideal pls?
Any idea please?
It is still the same; with / without the cover (it doesn't really matter) and it is really annoying.
I'm just wondering about HW issue (touch layer / sensor).
Thanks a lot for any feedback / opinion!

Related

[Q] Legend notification panel and screen issue

Folks ~ On Aug 10, 2010 I purchased an unlocked HTC Legend (A6365 – HSPA 850/1900/2100 Mhz). The phone operated wonderfully until Sep 8, 2010. At that time, the Notification bar couldn’t be “pulled-down” anymore. Additionally, without rhyme or reason, when I touch the screen, the notification panel will open randomly. This renders the phone useless since every time I touch the screen, the notification panels opens. I tried a softboot and a factory reset. Neither action resolved the issue.
I contacted HTC USA support and they suggested clearing the calendar data and vigorously rubbing my hands together and then touch the screen whenever the issue occurred. No success. This issue occurs whether the SIM card is installed or not. I can safely say that no new applications were installed within 48 hours of the issue starting.
I search the available forums and found at least three other instances of this same issue. Regrettably, none of these threads have any answers to the issue.
HTC support then recommended for me to contact HTC Return Merchandise Authorization & Repair Center. This group (in the USA) cannot accept the phone for troubleshooting because this phone is not available in the USA.
Based on the behavior thus far, I suspect this is an issue with the firmware becoming unstable. The phone hasn’t been exposed to any drastic environmental changes (heat, cold, excessive dust, etc). Software info follows:
Firmware version: 2.1-update 1
Baseband version: 47.37.35.09U_7.09.35.05
Kernel version: 2.6.29-9e497c43
Build number: 2.02.666.3 CL1777708 release-keys
Software number: 2.02.666.3
Browser version: WebKit 3.1
By know, HTC should have received multiple complains of this issue and I hope they have a solution for it. The options of the phone are great, reception is wonderful and performance is superb (except for this issue).
Your assistance is greatly appreciated!
i had a similar behavior for just a wile and it was related to a screen protector i had on my legend.
after removing this and cleaning the screen very well it was gone
i suspect there was a conductible particle between the casing and the screen that mixed up the induction system of the touch screen.
sins then i have a little prog on my legend that shows the touch points he recognized : http://www.appbrain.com/app/com.batterypoweredgames.mtvistest
maby this is not related to your problem but you never know
Good luck
I have the exact same problem that occured after mounting screen protection.
I got the suggestion from support to do a factory reset.
I'll try that tonight.
I also saw this tip:
forum.xda-developers.com/showpost.php?p=4894244&postcount=36
(I got this message when trying to post the link: "To prevent spam to the forums, new users are not permitted to post outside links in their messages. All new user accounts will be verified by moderators before this restriction is removed."
I look like an internal link to me)
Sounds possible since you have to puch the air out when mounting screen protection.
So perhaps to much pressure to the screen causes this problem.
Nope that didn't work...none of the proposals.
Next step, send it in for service.
I had this exact same problem! It also started happening after I applied a Zagg screen protector. I thought maybe it was because water got inside the phone.
I removed the protector since there was a hair underneath it but the problem persisted. I was having the exact same symptoms as you (notification area acting wonky).
I got the phone from future shop and they have a return policy... for $10 a month you can return the device at any time during your contract and get a brand new one no questions asked. This is what I did and my new one works perfectly.
As a side note..I originally had a palm pre which started acting strange so I brought it back for replacement and since future shop no longer supports the pre I was given a choice of a different phone. I chose the legend and absolutely love it. I loved the pre but the legend is a much better phone.
sorry for bringing an old thread up... but i have the same problem...
is there a solution to this? ... except RMA, because the warranty has just ended...
the notification wont swipe down and opens randomly... the screen has been tested and is workin ok...
thx...
Have you tried wiping your screen? I get this occasionally. But just wipe helps remote dirt that messes up the heat sensors away.
Sent from my HTC Legend using XDA App
You can try pressing harder digitizer just abowe home and menu button but that may work just temporarely. Replacing digitizer you will fix this problem once and for all... Sorry

[Q] Are Note 7 Touch-Screen Issues Hardware or Software?

Hi guys,
I recently purchased a used Tegra Note 7 on eBay. As I'm in the UK it's the Advent Vega variety, although I don't know if that is relevant as they all appear to be the same unit; can someone confirm?
Anyway, I have noticed that every so often I lose touch response along the left or bottom edge of the screen, where the nav-bar would be in either portrait or landscape modes. This sometimes results in me having difficulty pressing the back or home button, or having difficulty selecting the settings button in the bundled camera app (this sits at the top-left of the screen). Another annoyance I found in the YouTube app; when scrolling through videos to watch, it would load the first video my finger landed on, but then continue scrolling. It's like it registers my first touch as a 'click' then realises I actually want to perform a continuous movement.
Having read a few posts scattered across the net about various touch-screen issues and some apparent software fixes, I wonder if I should stick with the tablet and wait for Lollipop to fix everything(!), or send it back on the assumption that this is an inherent fault. Because I may end up sending the tablet back, I'm hesitant to try any software fixes that require unlocking the bootloader and installing a custom recovery.
So what is the general consensus? Is the hardware flaky on these devices, or is software to blame?
I wasn't pleased when I found out that the UK models are Advent Vega (I experienced many issues with their first budget device, which was pretty horrible), but hoped all Tegra Notes were built equally regardless of the market.
Thanks in advance.
Today I was watching YouTube in reverse-landscape mode (so that the hinge on the flip case was at the top), and I couldn't click the search button at the top right of the app. It just would not register. Five minutes later, it starts working.
What's the deal with these screens?
Well, it's going back to the seller. I had no confidence in the device being able to give me hassle-free use throughout its life.
Plus there doesn't seem to be much of a community. Weird how this tablet seems to have gone under the radar.
HELLO-O-O-o-o-? ECHO-O-O-o-o-.
I get the touch screen issues occasionally too. I find that just turning the screen off and then back on usually fixes the issue.
Still it is bloody irritating!
I am miffed at the lack of community support for this device too. I thought that given the price and the fact that unlocking the bootloader is so easy that the dev community would have been all over this tablet. Shame.
Yeah it's a strange one for sure. It's still one of the most powerful tablets around, runs almost pure Android, has front-facing speakers, a half-decent stylus, easy to unlock like you say, and is an absolute bargain.
The Shield Tablet looks absolutely awesome though, hopefully that ends up with more of a following.

[Q] Lenovo A7 (A3500) / A8 (A5500) digitizer issue?

Sorry to hijack an A3000 sub-forum with what appears to be an issue on A3500/A5500 Lenovo tablets, but seeing that there is no other place to post this I decided to go ahead and do so here. If the admins chose so, please move to a more relevant sub-thread. Please bear with me as I describe the issue below...
So I bought this A5500 the other day and was immediately confronted with what -as found at a later stage- appears to be a widespread issue on Lenovo's A3500/A5500 tablets. The issue is quite easy to replicate and is clearly evident when scrolling through a page with the finger in direct and constant touch to the screen. In this case the flow is jumpy and non-continuous as shown in the video below.
Link inserted here, however since I'm a new member I'm not allowed to attach as an external link, hopefully pasting as text link is allowed, however functionality is obviously hindered somewhat...Sorry about that, nothing I can do on my front. Please remove respective spaces from the link below to view the video, thanks.
htt p s://vid.me/gfEj
What strikes me most is that I couldn't find any mention of the issue anywhere on the internet, seeing that it has obvious knock-on effects even on sketching a simple vertical line as shown above. So this happens only on the vertical axis, on almost all of the Lenovo A3500/A5500 devices I could get my hands on, even on the display / demo units found on major retail stores in the vicinity of where I live (South Europe). And I say almost, since apparently A7500s (A10s - 10'') models DON'T exhibit said behavior, which is ALSO the case with most other branded tablets I managed to test, either LG, Asus etc...
So my question would be if this is a known-issue for these devices, or something's gone horribly wrong with the digitizer panel of specific batches of these and need to be replaced by the manufacturer...In either case if you happen to be the owner of one such tablet, please take some time to perform these tests and report back.
Thanks!
So drawing on the vertical axis appears like so...Is this normal?!

Lenovo A3000-H "autoresponsive" touchscreen

Hi guys,
I have an Ideapad A3000-h from a relative lying in front of me, with something is "not working" as the only description I got. I noticed that apps would automatically start up or close and when I went to the options menu it randomly selected different entries without me doing anything. I got the impression that the touchscreen was getting 'signals' without anything or anyone actually touching it - I decided to call this 'autoresponsiveness'. I confirmed this hypothesis by making the touch actions visible via the developers menu (which was a pain in the *** with the tablet constantly inputting actions on its own) and sure enough, on the right centimetre of the screen I randomly get short touch impulses. They become faster, more erratic and generally occure more often if I myself touch the right margin on the screen.
I think this is an issue of the hardware and I would recommend to have the touch screen and digitizer swapped. However I don't have any experience with Lenovo stuff and I just wanted to ask if you guys have any ideas if this could be a software (potentially malware) issue. I don't think so, as my relative has allegedly already done a hard reset and the problem still persists. I just can't be completely sure if what was done was actually a real hard reset or just something that was mistaken for it by my technologically impaired relative
If anyone needs video to understand the underlying problem - I honestly don't know if my description is any good - I will gladly provide visuals.
Thanks in advance guys
Cheers
PS: While we're at it. Does anybody know of a good instruction on how to replace souch a touch screen unit? I only found a russian video but I don't know what kind of solvents the guy used as everything is in Russian

Touchscreen sensitivity issues near the edge? (Official Android Oreo 8.0.0)

I've had a frustrating issue with my Sony X Compact for past months. Whereas before the touchscreen worked flawlessly, I'm now having trouble getting taps and swipes registered near the edge of the screen. For example, when I try to tap the first and last letters of the center row in my keyboard, it usually takes quite a few (more aggressive) taps to get them to register. If I use a light tap that would register elsewhere, nothing happens. Moreover, I sometimes have trouble swiping the Quick Settings Tile open. The weird thing is... When I do the Sony Support Touchscreen Test, I get zero issues and even with a light touch can clear the screen near the edges.
Now I've gone through the usual culprits... I've tried a bunch of different keyboards (currently using either 1C or SwiftKey). I've tried different launchers including the Sony one (currently using Nova Launcher). I've made sure I'm up-to-date in everything. I've try to adjust the Pointer Speed (Language and Keyboard menu). I've even tried a touchscreen calibration app. Nothing works. I've also booted to Safe Mode and made sure the issue persists there (it does). I haven't dropped my phone and am actually using a case and a glass protector to protect the screen (which is in mint condition). Oh and yes, I have made sure that the problem persists without the case and the screen protector.
I've done a bit of research and apparently many Sony owners have had similar issues and not just with the X Compact. Many link this issue to Oreo and I do have to agree that I didn't have any issues with the previous Android version. Apparently many have complained for months and Sony has given zero f... ixes.
Any ideas or advise? I can live with this issue for now (although typing is at times annoying) as I plan to upgrade to either XZ2 Compact (if good enough deal arrives) or to its successor next year. Should I try to revert back to previous Android version or maybe try a custom OS? I do have some warranty still left although I'm not sure if they'll take this issue seriously.

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