topic Re: Touchscreen problem after 5.1.1 update? in XPERIA archive

Touchscreen problem after 5.1.1 update?

Freelancer2 — Mon, 12 Oct 2015 02:59:40 GMT

I updated my Z3 Dual to 5.1.1 Build 23.4.A.1.200 (Hong Kong) a few days ago. I found that my touchscreen has some "dead zones" when playing games or typing on the keyboard, mainly a vertical line about 2cm from the left of the screen and also a bit on the lower right.

I wonder if this is software related? I have already tested the touchscreen using YAMTT.

Re: Touchscreen problem after 5.1.1 update?

xavinux — Mon, 12 Oct 2015 03:11:20 GMT

Hi @Freelancer

Please, first run a backup of the device information as explained here. Then perform a system repair using PC Companion or Bridge for MAC. This will factory reset your phone and erase all data. You might need to charge your device for about 1-2 hours before so the device has at least 80% battery. Make sure the device is not connected to computer or laptop and turned off until you are prompted (sometimes you have to press power button and volume up until the device vibrates 3 times or on some devices you have to press the small button near the SIM tray or on the back of the device). Start PC Companion -> Support zone -> Update my phone/tablet -> Blue Repair my phone/tablet -> follow instructions. When prompted connect your phone still switched off holding volume down or back button. The repair or reformat process will start. If you are using Windows 8/8.1 or a 64 bit operating system adjust settings for PC Companion and run in compatibility mode -> chose Windows 7 or XP.Keep us updated please, I´m at disposal for any question.

Re: Touchscreen problem after 5.1.1 update?

Qatrium — Mon, 12 Oct 2015 04:48:26 GMT

You can run a diagnostic test from here: Settings -> About phone -> Diagnostics -> Test -> Touchscreen

Re: Touchscreen problem after 5.1.1 update?

Freelancer2 — Mon, 12 Oct 2015 05:24:37 GMT

Well I can pass the Touchscreen test under About Phone. But if I use *#*#7378423#*#* to enter service mode and do the touchscreen test, when I try to draw vertical lines, some lines are broken or auto "skewed" to the left or right. Horizontal lines seem basically ok.

Re: Touchscreen problem after 5.1.1 update?

Qatrium — Mon, 12 Oct 2015 05:28:11 GMT

Do you use a phone case with magnetic closure? Or battery bank case?

Re: Touchscreen problem after 5.1.1 update?

Freelancer2 — Mon, 12 Oct 2015 05:51:31 GMT

No, I just use a simple plastic back cover.

Re: Touchscreen problem after 5.1.1 update?

Qatrium — Mon, 12 Oct 2015 06:01:55 GMT

Did you try to test it in safe mode?

Re: Touchscreen problem after 5.1.1 update?

Freelancer2 — Mon, 12 Oct 2015 06:28:54 GMT

Yes I did try in safe mode, same.

Re: Touchscreen problem after 5.1.1 update?

Qatrium — Mon, 12 Oct 2015 06:51:45 GMT

Strange it passed the Diagnostics, which may rule out a hardware issue. Are you willing to re-install you phone software? This will wipe your phone's internal memory and should clear out if it's software or hardware issue. Follow Xavinux's guide on 2nd post: Backup, perform Software Repair with PC Companion and hopefully it will be resolved if it's a software issue.

Re: Touchscreen problem after 5.1.1 update?

Freelancer2 — Mon, 12 Oct 2015 07:05:33 GMT

I think the Diagnostics Touchscreen test is a bit "simple" since it just requires me to wipe the screen, but I can do that despite any "skipping" when I draw a vertical line. But if I open Sketch and draw vertical lines at the problem areas, the lines appear broken or skip to the left or right. That affect my keyboard typing or playing games.

I might try the backup and software repair later at night.

Re: Touchscreen problem after 5.1.1 update?

Qatrium — Mon, 12 Oct 2015 07:43:39 GMT

Keep us updated, if the problem was not solved then it might suggest a hardware issue, may be in the digitizer. If that's the issue you'll need to contact your Local support and get the device inspected by a professional.

Re: Touchscreen problem after 5.1.1 update?

Freelancer2 — Mon, 12 Oct 2015 15:19:38 GMT

@xavinux If I'm running Windows 10 (64-bit), do I still need to run PC Companion in compatibility mode? Thanks!

Re: Touchscreen problem after 5.1.1 update?

Freelancer2 — Tue, 13 Oct 2015 04:17:27 GMT

I went ahead and used PC Companion to repair my phone, but the problem is still there. Looks like I have to find a technician to fix it. I just wonder why this seemingly physical problem appears just after I updated to 5.1.1 though.

Re: Touchscreen problem after 5.1.1 update?

xavinux — Tue, 13 Oct 2015 12:07:02 GMT

Hi @Freelancer

Which version of Android OS was your device running before the update to 5.1.1 ?

Re: Touchscreen problem after 5.1.1 update?

Freelancer2 — Tue, 13 Oct 2015 12:22:02 GMT

I actually forgot about that ... 5.1? 5.0x?

Anyway, I went ahead and paid visit to a mobile repair shop (not a Sony official one as I found that my warranty is invalid due to not having bought the phone from an "Authorized" dealer), and he replaced my touchscreen at a cost of about US$120. But he did say there is a small chance that a software update can "damage" the touchscreen if the program is faulty.

Just now I got a new android update notification from Sony ... I'm holding off for this one for now.

Re: Touchscreen problem after 5.1.1 update?

xavinux — Tue, 13 Oct 2015 12:27:48 GMT

Hi @Freelancer

You can try to re-install Lollipop using Flashtool (you don´t need to open your bootloader or root your device to do this) as explained here. You won't lose data if you unclick wipe data in Flashtool, but it is recommended to wipe everything when flashing Roms. You can run a backup pf your device before flashing the device as explained here. XperiFirm is now included in the last version of Flashtool. I´d give it another chance before replacing the touchscreen. I´m at disposal for any question.

Re: Touchscreen problem after 5.1.1 update?

Martin19 — Sat, 27 Feb 2016 09:57:10 GMT

Hi, I have the same problem with the same phone...tried all the stepps ...and nothing. I am sure the problem is with this software update and hope for a marshmellow update as soon as possible. But not great for Sony ...as this is my first Sony phone after years with several Samsung models... But if you find a solution, pls tell me.

Re: Touchscreen problem after 5.1.1 update?

SABIR786 — Mon, 30 May 2016 08:42:40 GMT

PLEASE INSTAL WITH CAUTION

my screens horixontal center is not working aftwer that update