New update is up.

My Z2 is a much stable phone too, so I get what you mean. My longest was 30++ days without restart and it won't lag much, but with my XZ a week is the most right now I can go on without having to restart the phone due to the phone going much slower than a toddler learning how to crawl.

Yeah just notified by it. Hopefully it would fix the lag.

Meanwhile, my Z Ultra has no restarts for 2 months.
I only restart my phone whenever there's an update. i will keep using OTA update until Sony releases Android O. that will be the moment i wipe the phone completely and update by flashing.

Speed like faster after the update. Will look few more days to conclude.

At least the drag down & interface feel smoother now.

But phone still warm/hot easily than before.

i've noticed this as well. I'm using z3 too before change to xz.

Currently my phone are lag, just opened fb whatsapp & chrome only.

Hopefully the new update fix this issues.

When you rojak your phone's screen protector.


Attached thumbnail(s)

I retrieve my word, phone is starting to lag after almost a day.

What is everyone's average ram usage? Check under Settings > Device > Storage & memory > Advance > Memory.

My is a 2.4GB out of the total memory 2.7GB.



This post has been edited by yuhhaur: Jul 13 2017, 05:19 PM

Mine is 2.3gb.

447MB free of 2.7GB
I dont feel anything, to be honest.

For RAM usage, mine is running around 2.4GB at all times, and that is even when I force close tons of apps that I rarely use.

Even after the update, my phone still feels laggy. And does anybody notice about the tap to wake function? It was supposed to be tap twice to wake it, but mine needed more than twice, sometimes even more than 4-5 times tapping quite hard on the screen, then it'll wake it lazy ass up.

Even the adaptive brightness function seems to have a problem. It doesn't adapt to the changes in brightness fast enough, sometimes it would actually stay full bright or half even in total darkness and I had to manually change the brightness, which makes the function seems wasted. It doesn't start on this update though; if I'm remembering it right, it started since the last 2 (or 3 update).

Mind you I don't even put on any screen protector anymore, and I regularly wipe my screen with glassess cleaning cloth.

if you face many problems or serious lag, better do factory reset.

honestly i don't have any issue with my xz. my newly bought 6 month old i5 laptop lags more than my xz. (crappy windows 10...)

i stop using the double tap to wake now cos i feel it is too sensitive in my case. always screen on itself when i put my phone in my pocket.
adaptive brightness... when i first bought the xz, again it is too sensitive. always dimming the screen to the lowest. but after dunno which update, it now works like a charm.

in fact i am very satisfied with my xz tbh. even after major updates from android 6 to 7 to 7.1, i don't feel the need to do factory reset of the phone unlike my previous z1, which sure face lag or some feature malfunction after a major update and need to do factory reset. i may, like raymond, do a factory reset after update to android 8. but still depends on situation

Comparing ram is actually useless for android. It is different environment compare to windows. Ram is acting cache for android, for you switching the app faster and battery saving. Most of the time, ram usage is more than 80%. Even my nexus 10, only 1gb ram, it won't lag like my xz.
From my exp, it is mostly ram management issue or memory leak for the rom.

The tap to wake problem with mine I think is due to the high usage of RAM at all time, hence when I tap (or knock it) it would need more than twice most of the time.

I do think its about time I do a factory reset on my XZ cause I have been facing tons of issues, but I just don't feel satisfied for a phone of this level to perform this way. Maybe it is just my unit, or my batch of unit, I don't know.

I do think Sony might have a problem with RAM management issue in the long run because this is the same issue with my Z2 last time. Hopefully they will manage to fix this soon.

Don't waste time for factory reset. Most of the time, it do not work.
When android update, it will clear all the cache, basically format only work if something is corrupted. But when you go check xda and sony forum, many peoples are shooting there, mean it definitely a rom problem rather than individual problem.
And giving you the more reality case. Few pages back, i said my phone was sent to warranty. The phone was lag EVEN first day getting back, which was formatted and upgraded to android 7.1

Aaaaaaaand this is how hard reality slaps me in the face. Then Sony better fix the ROM asap. Or we can just hope that they will.

You can try if you want to, but please don't put too much of hope. Format phone is the laziness and simplest answer from CS. Just like when you call to ISP, they will ask you restart the modem.
Of course, a clean phone is smooth and faster, because it is empty. And when you install/restore the things, it is doing 1 by 1, step by step. It is lesser burden for the CPU. You feel smooth all the ways. But dirty update, because the phone was wiped the cache. When first run, the first few hours, up to days, it need regenerate the cache in the background. It do all at the same time, so you will feel warm for the first few hours. After the thing is settle down, the phone will not lag and battery-consuming. After the phone fully restored, either clean/dirty install, they are almost the same. But i agree, dirty install has some residues/rubbishs remain there.
That's why i said, unless there is corrupt, or setting error, mostly format won't work.

You can read the comments here from

https://talk.sonymobile.com/t5/Xperia-XZ/XZ...ot/td-p/1227362