yashsingh1/xdaforums huggingface dataset:
[Xperia Tablet Z Q&A, Help & Troubleshooting] UserX10:
I don´t think that this is a "real" solution for a normal user who has upgraded to 4.3 regular.

I have the same problem with the flickering - but it is not as terrible as shown here http://www.youtube.com/watch?v=0p1jmg3rpmk. On my SGP321 I have the same problem but less than shown in the video... it is not disturbing so much but it is still very annoying...
[Xperia Tablet Z Q&A, Help & Troubleshooting] ibis69:
This flickering issue is one of the bug introduced by sony in their 4.3 roms. There is nothing to do atm, just wait a fix from sony

Other reported bugs for 4.3 sony rom (other sony devices have same issues) :

- Very Slow shutdown

- upnp/dnla devices not shown in walkman app, need to turn wifi off/on to make it working

- unable to tether via bluetooth

- Battery gauge wacky after update

- Wisepilot not working

- Calendar FC for some users
[Xperia Tablet Z Q&A, Help & Troubleshooting] Felimenta97:
Ohhh... I thought I was the only one with those issues. Good to know it's not only me and that a fix should come...
[Xperia Tablet Z Q&A, Help & Troubleshooting] nick2crete:
I had this flickering right after the update and noticed while using the keyboard ,but after some time and 1-2 restarts its gone ..
[Xperia Tablet Z Q&A, Help & Troubleshooting] Nittenti:
Thanks, I was about to RMA my new SGP311 - lets hope they bring out a new patch fast
[Xperia Tablet Z Q&A, Help & Troubleshooting] N1NJATH3ORY:
Your factory BS theory don't work ;)
[Xperia Tablet Z Q&A, Help & Troubleshooting] nick2crete:
I confirm that i dont have this issue anymore

Edited,

I reconfirm that it does flicker only while typing with keyboard, I remember when it booted from update, keyboard apk appeared asking set it up, didnt bother and cancelled it
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
i tried 3 different firmwares already and factory reset but non of these solve the flikering when using the default xperia keyboard ( especially when changing it from normal to splitted keyboard) ..

it also occurs in some widgets like clean master.. if you tap the widget for clean up and top again in the lower side of the screen it also flickers.. but this is occasional. and it also occurs in a small app video player.. so i uninstalles both of them..

i hope sony can fix it ASAP with an update...it can temporarily avoided but its annoying to think that we have this bug..
[Xperia Tablet Z Q&A, Help & Troubleshooting] N1NJATH3ORY:
There is a thread over at Sony Official forums, Xperia Care.. if you got time. Go and post over there, as i have done.. The more of us raise the issue maybe Sony might provide a faster fix...
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
yes, i already post a comment on the thread of flickering display... will check it time by time for an update..hehehe
[Xperia Tablet Z Q&A, Help & Troubleshooting] N1NJATH3ORY:
Awesome:) People if you got time, please head over here clicky And let Sony Mobile Know..
[Xperia Tablet Z Q&A, Help & Troubleshooting] hasenbein1966:
Could someone post an example under which exact (!!) circumstances he gets the flickering? (For example, "when I use Chrome in portrait mode, go to site xyz.xy and type something in dialog box xyz with the Xperia keyboard" or something like that.)

So we others can confirm or deny whether it occurs on our devices, too. (Up to now I could absolutely not detect any flicker.)
[Xperia Tablet Z Q&A, Help & Troubleshooting] N1NJATH3ORY:
Hi have you tried landscape mode ? and are you using the official Xperia keyboard with swype ?? Just load xda via chrome and do a post here on the forums also don't rush the post wait around for 15 to 25 to 40 seconds it should start to flicker.. Also i did install 4.3 unbranded today, so i need to setup my keyboard ill report back with the exact settings i got..... Thanks

UPDATE!!!

Language & input, Spell Checker Checked, Then Click The Spanner right side for Xperia Keyboard international Keyboard, Google Voice Key Check, Smiley Key Check, Gesture Input Check, Keyboard Skins ive got it on black, Text Input Settings, Gesture Input Check, Google voice Typing Key Check.. That's my settings for now, plus my tablet is real buggy (email updating 10,000+ in background causing bug) the flickering did happen once. The whole screen flickered, while i was typing in a few sentences to Google search but when it was laying flat there was no flickering.. When i picked it up, in land scape mode and was swype typing in mid air that's when the single flicker happened Yeah i know its weird...
[Xperia Tablet Z Q&A, Help & Troubleshooting] fipsix:
Mine starts to flicker occasionally when typing in landscape mode, i use stock keyboard, but tried also some other from playstore, dont use swype or any spell checker. Ah, nearly forgot, I use boat browser.
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
Hi friend, i not sure if it also occurs in some models but mine is sgp311 16g wifi model. Just to isolate or confirm.. I already tried 3 different firmware versions for my model and i even end up rooting it (stil locked bootloader)..

Here's how to catch the flickering event:

-Use the default xperia keyboard everyday.

-Open chrome browser to post comments on xda.

-Try changing the mode of the Xperia keyboard from normal mode to the small one and to the splited keyboard...

-Try to play with the Xperia keyboard...

-Be patient..this may not appear in an instant..(but mine is flickering as i am writing this post...)
[Xperia Tablet Z Q&A, Help & Troubleshooting] hasenbein1966:
Thank you for the reply!

I have exactly replicated your scenario and wrote this post using your settings.(Of course being patient, erasing things several times and writing them anew.)

I can not get my device to flicker, all working flawlessly.

You guys must have some peculiar configuration / setting which I don't have and which went under the radar when Sony was testing the 4.3 ROM.
[Xperia Tablet Z Q&A, Help & Troubleshooting] prasadm:
I have noticed this on my tablet now. Can't say what scenario causes it, but it is enough to be noticeable.. But not all the time. I have a UK 311, 16 gb, Xperia keyboard with black skin, dolphin browser with flash sideloaded, auto correct enabled. Sometimes I can type for minutes together without any flicker, other times, it comes up within a few sec. Mine was repaired using PCC, so complete wipe was done. For a few days I had no issues at all.... Seems to happen at random...
[Xperia Tablet Z Q&A, Help & Troubleshooting] hasenbein1966:
If it happens only on rare occasions and all else is running great, then what's the point? Show me one single Android device which hasn't at least some minor faults and bugs. And iOS users (who are always so proud about their expensive devices) have to live with out-of-memory errors, a much more serious occurrence, since iOS 7!... Some people love to complain.
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
thanks for the comments. but you are not helping us here.

we are just stating the fact that there are glitches in the 4.3 update and these should be corrected.

so therefore, stop commenting zombie like comment here..hehehe

your zombie like creature life.. we reported this issue because we want to improve our device and not just stating nonsense..
[Xperia Tablet Z Q&A, Help & Troubleshooting] hasenbein1966:
No, you and some others here just dwell in a neurotic, inadequate perfectionism.
[Xperia Tablet Z Q&A, Help & Troubleshooting] prasadm:
The forums are used by members not just for complaining but also to get help. Some people spend lot of money for these devices and if they expect it to work properly for the tasks they use it for, so be it.. If you think it is ".. neurotic, inadequate perfectionism", then assuming it somehow hurt you maybe you should stay away from this post.. Yes all devices have some sort of error and one may or maynot be concerned about it depending on whether they use that functionality or not. Errors in iOS7 is not a concern for users on this post I guess.

These forums have provided advice and suggestions to lot of people who needs them not to mention the countless corrections, tweaks and development support which even sometimes manufacturers are unable to provide.

I don't intend to post any more on this subject as it would be hijacking the original post. Sorry !
[Xperia Tablet Z Q&A, Help & Troubleshooting] negrobembon:
It happened! Only once tough, but i managed to see it
[Xperia Tablet Z Q&A, Help & Troubleshooting] hasenbein1966:
Have you recovered from that shock?

Of course you will now return your device and never buy Sony again, won't you?
[Xperia Tablet Z Q&A, Help & Troubleshooting] negrobembon:
Lol, now that's stupid
[Xperia Tablet Z Q&A, Help & Troubleshooting] hemicz:
Since I switched from Firefox to Boat Browser, I have no longer problem with flickering.
[Xperia Tablet Z Q&A, Help & Troubleshooting] Pihkal:
Sgp311 + xposed + root on 4.3, also flickering keyboard.

Tried stock kb and touchpal X, both the same issue.

Doesn't seem to matter what app I'm using.

Very annoying but except this 4.3 is running nice and smooth.

Edit: Disabling HW overlays seems to have "fixed" the issue on my device.

Don't shoot me if it doesn't work for you but it seems to be working for me, at least for now.

If you want to make it persistent (it isn't by default): http://xdaforums.com/showthread.php?t=1904827

Hope this works for other users.

Regards
[Xperia Tablet Z Q&A, Help & Troubleshooting] lupick:
Can you post the mod made to your build.Prop?

Inviato dal mio SGP311 utilizzando Tapatalk
[Xperia Tablet Z Q&A, Help & Troubleshooting] Pihkal:
I didn't edit it yet as I'm still testing if it actually fixes the flickering.

So far so good, didn't have any flickering since.

Plus I don't reboot my tablet frequently so it isn't a big deal to manually disable the HW overlay for now.

Regards
[Xperia Tablet Z Q&A, Help & Troubleshooting] Diomorgan:
Massive flickering using fb messenger and Even writing this post.ok, we Can Live with It, hut it's damn annoing and I Wonder why someone should upgrade To 4.3 that was almost perfect...if only I knew before flashing It...
[Xperia Tablet Z Q&A, Help & Troubleshooting] goog64:
Just got my Z tab yesterday. First thing I noticed was this horrible flickering.

What is an HW overlay?

How do I disable it please?
[Xperia Tablet Z Q&A, Help & Troubleshooting] Pihkal:
You can disable hardware overlay in Settings -> Developer options.

If you don't have the developer options menu go to Settings -> About tablet and keep tapping build number until it tells you you're a developer

When you now go to settings the developer menu should be there.

Greetz .
[Xperia Tablet Z Q&A, Help & Troubleshooting] goog64:
Cool, thanks Greets. I didn't know about that.

And it seems to have stopped my flickering (the flickering was really bad during typing of my first sentence just now, so I turned off HW overlays and it hasn't flickered since). Excellent!
[Xperia Tablet Z Q&A, Help & Troubleshooting] Pihkal:
Glad to hear it worked for you.

I forgot to mention something important, this setting isn't persistent, meaning you have to set it again after each reboot.

Though there is a way to make it persistent, look at this thread here: http://xdaforums.com/showthread.php?t=1904827

I didn't try this myself as I don't frequently reboot my device.

Remember to make backups in case anything goes wrong.

Regards
[Xperia Tablet Z Q&A, Help & Troubleshooting] goog64:
Thanks Pihkal.
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
Another 4.3 update received last night (was hoping it was 4.4 but no) and its still not fixed.

Sony really is crap. Had 3 of these now and all of them do it on 4.3. Sony has lost my custom.
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
Yes. flickering is still present in 4.4.2 update.. very disappointing...
[Xperia Tablet Z Q&A, Help & Troubleshooting] corallus:
For me, I updated to 4.4.2 o2 uk for the sgp321 and did factory reset after. Then to be double sure I did a repair through seus, no flickering at all when using keyboard.
[Xperia Tablet Z Q&A, Help & Troubleshooting] corallus:
It started the flickering tonight. Just as bad a before.
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
Yep just installed 4.4.2 and its still an issue. I've written to Sony and the retailer.
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
Following a web chat Sony have asked me to return it to them (again) - apparently its the first time they've heard of this....even though theres a lengthy thread on their own forum lol....I'll update once I've recived it back.
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
really? thanks man. i hope they fix this bug.. its been 2 updates now since this annoying flickering thing appeared.
[Xperia Tablet Z Q&A, Help & Troubleshooting] blackassassinuk:
I got this as well on new 4.4.2 official rom, it happened regularly with Firefox and SwiftKey typing into address bar.

I looked around and found a working solution, go to settings - > developer mode - > disable hw overlays

This should stop it until you reset device and it turns off again. If you want to make it permanent edit build prop. Look for the sections that start 'debug' and change dyn to gpu and 0 to 1.
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
yes, its true if the HW overlay is enabled. but by default, its disabled on my tabZ. you'll get a blueish flickering when hw overlay is enabled. can you backup your ROM and shared with us if its flicker free? coz when I go to the app drawer and search for an app it flickers.

Thanks for sharing your solution to this flickering issue.
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
Well I have now received my z back from Sony with a list of the following repairs:

Front Cover Black Wi, Sheet FPC TOP, Adhesive WP Panel Re, MComp Sheet 54, Panel Top Black LTE/, Sheet Insulation Bat, Loudspeaker x 2, Foil Adhesive Batter x 2, software upgrade.

Bit more than just a software fix....I have no wifi at work to check it is all ok so will confirm later once installed and had a play.

To get this fix under warranty (at least in the UK), I contacted Sony directly via web chat and the sent me a repair form and the uk address to send it to (a Sony facility). Took around 5 days to get it back. Previous device got sent to Holland for repair!!! They lost it....

Hope Sony have fixed it this time.

Paul
[Xperia Tablet Z Q&A, Help & Troubleshooting] romskii:
I've did a clean flash yesterday, as CM failed. Mostly the flickering comes while using swiftkey.

Until its clean now I habe discoverd not any flickering yet
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
Piece of crap is still doing it. SECOND tablet and second repair to each, still doing it. Asked for a refund.
[Xperia Tablet Z Q&A, Help & Troubleshooting] romskii:
Ok for me it's definitely Swiftkey related... Have you also installed Swiftkey?

Gesendet von meinem SGP321 mit Tapatalk
[Xperia Tablet Z Q&A, Help & Troubleshooting] Felimenta97:
Damn, it's a software bug, not a hardware one. Changing all your hardware will not fix it.
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
It's not swift. It's doing it before I've even installed my apps. It's received new parts and software upgrade. 4.4.2.
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
back on the chat to sony - they said i can either send it to them again for further repairs or speak to john lewis.

What is the matter with these companies? They supply a crap product, cannot repair it then push the liability back to the shop.

Everyone who has this issue should press sony for a fix or a replacement. Sony deny theres an issue but the sony care forum with 13 pages of comments about this issue says otherwise.
[Xperia Tablet Z Q&A, Help & Troubleshooting] romskii:
True! For me it's flickering while using SwiftKey. I've even had this bug on 4.3

Gesendet von meinem SGP321 mit Tapatalk
[Xperia Tablet Z Q&A, Help & Troubleshooting] Chimpdaddy:
It's possible there's two different issues here. I sent my first XTZ back because of a flickery screen and that definitely was a hw problem, got a replacement and haven't seen the issue again.
[Xperia Tablet Z Q&A, Help & Troubleshooting] najoor:
A possible fix

If you have tried everything else already, give this one a try:

Use titanium backup pro if you are rooted, or apps tab in settings to freeze/disable PO Box touch and Xperia Chinese keyboard

This may significantly reduce your keyboard flickering if not entirely eliminate it
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
yes it reduces but it does not eliminate the flickering.
[Xperia Tablet Z Q&A, Help & Troubleshooting] bonerp:
Well thankfully the shop swapped it after all the agro having had 2 and those repaired unsuccessfully.

I went for the z2 stupidly. The screen sensitivity is very poor. I love the device and it weighs nothing.

I've done a reset after installing the latest update so if its still poor, that will be returned also.

I may dive into a samsung note 10.1 2014 or wait until the tab s is available. Sony have implemented an excellent design very badly.
[Xperia Tablet Z Q&A, Help & Troubleshooting] ryany67:
in new .233 KitKat update keyboard is wirking well :) without flickering dissplay
[Xperia Tablet Z Q&A, Help & Troubleshooting] Jonfensu:
Wait.... Did they replace your TZ for a Z2 Tablet?

For your problem with the touchscreen look at This and This
[Xperia Tablet Z Q&A, Help & Troubleshooting] tony359:
Hi there

First message here.

Today I was so annoyed with the screen flashing when typing (it's always done it, I thought it was an issue with xperia keyboard) and I decided to install google keyboard. The issue did not go away so I ended up here.

Disabling the HW overlays fixed the issue for me as well. I am puzzled that Sony did not fix that in the first place, but I wonder if disabling HW overlay has some performance impact?

Thanks every body for the help! :)
[Xperia Tablet Z Q&A, Help & Troubleshooting] Rootk1t:
actually, stock keyboard is not source of this bug. But if you delete google chrome, flickering in 97% cases goes away, so it's chrome+xperia keyboard issue.
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
i believe it's not the keyboard nor the chrome. it also occurs in some third party small apps. and screen flickering is also noticeable in the app drawer when searching for an app.
[Xperia Tablet Z Q&A, Help & Troubleshooting] reptile64:
By disabling HW overlay the problem is gone and I don't see any performance drop
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
Good for you bro. Coz by default our tablet's HW overlay is disabled. Can you attach here your build.prop? Just want to check something.

By the way I'm using sgp311 4.4.2.
[Xperia Tablet Z Q&A, Help & Troubleshooting] reptile64:
Here you go! ;)

BTW I'm using SGP321 4.4.2
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
Hi guys,

I think its solved now by doing this as stated previously but i misunderstood it.
[Xperia Tablet Z Q&A, Help & Troubleshooting] louie1487:
Just a temporary solution. If you restart, checkbox reverts to default state.
[Xperia Tablet Z Q&A, Help & Troubleshooting] Rootk1t:
You can make it permanent through NoMoreOverlay module for Xposed.
[Xperia Tablet Z Q&A, Help & Troubleshooting] donedos:
this issue was resolved in 4.4.4 update. no need that NoMoreOverlay module using exposed.
[Xperia Tablet Z Q&A, Help & Troubleshooting] dineshkumars:
Simple, use hair dryer, make dry your mobile.. due to water only screen was flickering. (may be). I did same .. my screen is working now perfectly......
[8125, K-JAM, P4300, MDA Vario General] rich.simpson:
Hi,

I am trying out AKU2 with Push e-mail for my organisation. I want to implement a security policy that forces a PIN number and locks the screen after a period of no use. All works fine, so far so good.

However when the device is actively in use for something like tomtom GPS, even when powered externally. the screen lock cuts in requiring you to enter the PIN whilst driving, which clearly makes it unusable for GPS or really even as a carphone (although voice dialling on a bluetooth headset works even with the screen locked)

Does anyone know of a solution to prevent the lock kicking in whilst on external power?

Thanks

Richard
[8125, K-JAM, P4300, MDA Vario General] mlh01:
I have the same problem here. It makes TomTom unuseable after 30 min. Mostly I'll drive a little further than that! :wink:

Does anyone else has this problem, and hopefully an solution?
[8125, K-JAM, P4300, MDA Vario General] matchtrader:
This is another aspect of the upgrade that I hate (in addition to the fact that you can't get vibrating notifications of emails while the device is in standby).
[8125, K-JAM, P4300, MDA Vario General] weatheryoko:
It's a problem for a lot of people....

I've updated my Universal to the AKU ROM and I'm having the same problem with TomTom, iGuidance, and OncourseNavigator (aka. Navigon). I don't know of a solution yet. I'm hoping someone will write a little application that will allow the user to specify "if program 'a' is running, prevent the screen lock. When program 'a' shuts down (i.e. exits), then re-start the timer for the screen lock").

I'd be willing to pay a lot of money for an application like that right now....
[8125, K-JAM, P4300, MDA Vario General] Stegerius:
Same Problem

Same problem here in the german QTek ROM.

What about collecting a bug-list (No vibration on push email, Lock screen problem....) in the forum and sending this to QTek?
[8125, K-JAM, P4300, MDA Vario General] patrickNLgld:
Re: It's a problem for a lot of people....

Is'nt it possible to make that same application to force a screenlock by pressing a hardkey? (on my work the phone is laying on my desk and i dont like that someone read my mail, msn or hotmail.

When there is an application which can do that, i don't have to use the automatic screenlock and there is no problem anymore when using Tom TOm ;)
[8125, K-JAM, P4300, MDA Vario General] rich.simpson:
>>When there is an application which can do that, i don't have to use the automatic screenlock

The problem with AKU2 policy is that the administrator of the exchange server decides whether you use the automatic screenlock and how long it locks after, the length of the password etc etc... The settings are greyed out after the 1st time you connect to your exchange server... so you no longer have a choice on the automatic screenlock...

R
[8125, K-JAM, P4300, MDA Vario General] N!co:
And it even stays like that after you have deleted the exchangeserver!!!! :evil:

So watch out trying to connect to your companies server with your mobile device. I think a hardreset is the only way to get rid of this annoying pin. :evil:
[Windows 8 General] Wayno-san:
I'm considering the purchase of the HP Omni 10 (Windows 8.1 Tablet) which comes with Office 2013 Home and Student. I have 2 questions regarding this:

1. Can Office be uninstalled (to regain storage space) from the tablet? I read in another article that it is built into the ROM (!?!)

2. If Office is not activated, can it be installed on a different computer and activated there? (Provided it was not activated and was uninstalled from the tablet)

I'm asking because I don't foresee using Office on a tablet since I do all my Office related work on my work laptop (which already has Office), and would prefer to give the license to my brother so he could install it on his PC instead since he actually needs it.

Thanks!
[Windows 8 General] SixSixSevenSeven:
1) Modern PC's do not have ROM. Your looking back many decades for a home computer with genuine ROM (even the BIOS is usually EEPROM or flash). It is installed in the C drive as normal software and can be uninstalled as with any other copy of office.

2) Not sure. Technically it is against the EULA as you are only licensed to use it on that machine only, not others, but it may function on another machine.
[Windows 8 General] GETCASHMONEY:
Yes I was in a similar situation. Uninstalled office, installed office 365 on my machine, And sold my office code for $94 on eBay. Sweet deal!