[Q] Why my phone lags like this? - LG G2 Mini

Hello.
I'm on stock 4.4.2 (D618) and I'm kinda tired of factory reseting my phone every month trying to fix this.
The problem is that my phone has interface lag constantly. I open an app and when I get back to home screen it
looks like the homescreen was force closed and had to be restarted so the graphics appear slowly in the screen. Sometimes
I have to wait 3 or 5 sconds for it to finish. It happens all the time too after I unlock my screen. And everytime I switch my wifi on
the phone just freezes for about 5 seconds and then comes back all laggy and stuff. Do you guys have that? Have any of you fixed?
I'm not rooted because that made things worse sometime ago. Thanks

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Are you sure that it is authentic?
Did you buy it from a well-known store or online?
Sent from my D620r [Stock 4.4.2 , -V- Kernel]

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If you get it online just download cpuz and see if you have the hardware that you must have (that happened to a friend of mine). If you get it from a well known store, get it back and tell about your problem..
Sent from my D620fr [CM12]

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Vagelis1608 said:
Are you sure that it is authentic?
Did you buy it from a well-known store or online?
Sent from my D620r [Stock 4.4.2 , -V- Kernel]
Click to expand...
Click to collapse
The phone is original. I bought it online but the store is reliable.
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AntonPanos said:
If you get it online just download cpuz and see if you have the hardware that you must have (that happened to a friend of mine). If you get it from a well known store, get it back and tell about your problem..
Sent from my D620fr [CM12]
Click to expand...
Click to collapse
The phone is pretty old already so the store won't give any support =/

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I had the same problem in CM12 as well, but the lag was "weaker" and not that common

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Maybe if you remember when you started to experience this lag you will know what cause it...

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AntonPanos said:
Maybe if you remember when you started to experience this lag you will know what cause it...
Click to expand...
Click to collapse
Once I reset the phone (When I say reset I mean that I flash the KDZ in CSE mode), of course the problem goes away. Then I start to download all my apps from Play Store (about 25 or 35 apps). I download them all, I also open them all to make login and etc. I always close all the background apps after that and reboot the phone. The phone works normally for a few days (less than week) and then the lag starts. Sometimes it happens with a lot of apps open, sometimes with none open at all. I thought it was because of high usage of RAM but there's about 250 ~ 300mb free all the time. I tried using those apps to clean cache but they don't make anything better. I tried deleting some apps there are very heavy and I don't use much, like Instagram, Twitter, even Tapatalk (I like XDA better in my pc), some games... I rooted the phone to use Greenify but it didn't change anything and the root made it worse (apparently). I don't really know what else to do.

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jfpsb said:
Once I reset the phone (When I say reset I mean that I flash the KDZ in CSE mode), of course the problem goes away. Then I start to download all my apps from Play Store (about 25 or 35 apps). I download them all, I also open them all to make login and etc. I always close all the background apps after that and reboot the phone. The phone works normally for a few days (less than week) and then the lag starts. Sometimes it happens with a lot of apps open, sometimes with none open at all. I thought it was because of high usage of RAM but there's about 250 ~ 300mb free all the time. I tried using those apps to clean cache but they don't make anything better. I tried deleting some apps there are very heavy and I don't use much, like Instagram, Twitter, even Tapatalk (I like XDA better in my pc), some games... I rooted the phone to use Greenify but it didn't change anything and the root made it worse (apparently). I don't really know what else to do.
Click to expand...
Click to collapse
Try again stock rom with no root and use greenify (it works non-root, i am using it like this too)..
Sent from my D620fr [CM12]

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jfpsb said:
Hello.
I'm on stock 4.4.2 (D618) and I'm kinda tired of factory reseting my phone every month trying to fix this.
The problem is that my phone has interface lag constantly. I open an app and when I get back to home screen it
looks like the homescreen was force closed and had to be restarted so the graphics appear slowly in the screen. Sometimes
I have to wait 3 or 5 sconds for it to finish. It happens all the time too after I unlock my screen. And everytime I switch my wifi on
the phone just freezes for about 5 seconds and then comes back all laggy and stuff. Do you guys have that? Have any of you fixed?
I'm not rooted because that made things worse sometime ago. Thanks
Click to expand...
Click to collapse
Maybe has something to do with an app that you've installed or have installed too many apps? Do you also reset your sd card when factory reseting your phone?
my D618 runs nicely though it sometimes lags when loading webpages on Chrome and slow to close when I close a game (like clash of clans) by pressing the home button other than that it runs fairly well.
---------- Post added at 10:30 AM ---------- Previous post was at 10:27 AM ----------
jfpsb said:
Once I reset the phone (When I say reset I mean that I flash the KDZ in CSE mode), of course the problem goes away. Then I start to download all my apps from Play Store (about 25 or 35 apps). .
Click to expand...
Click to collapse
Wow that's a lot of apps in my opinion.

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jfpsb said:
Once I reset the phone (When I say reset I mean that I flash the KDZ in CSE mode), of course the problem goes away. Then I start to download all my apps from Play Store (about 25 or 35 apps). I download them all, I also open them all to make login and etc. I always close all the background apps after that and reboot the phone. The phone works normally for a few days (less than week) and then the lag starts. Sometimes it happens with a lot of apps open, sometimes with none open at all. I thought it was because of high usage of RAM but there's about 250 ~ 300mb free all the time. I tried using those apps to clean cache but they don't make anything better. I tried deleting some apps there are very heavy and I don't use much, like Instagram, Twitter, even Tapatalk (I like XDA better in my pc), some games... I rooted the phone to use Greenify but it didn't change anything and the root made it worse (apparently). I don't really know what else to do.
Click to expand...
Click to collapse
I have the same issue! I need to flash my LG G2 Mini (D620K) like every week. I don't know what the problem is. I dropped my phone in january so the screen broke, but then I bought a new one and everything was appareantly fine. The only issue at that time was that I didn't have mobile network sign, even though I had my SIM card in my phone. I tried to factory reset it but that's when the problems started to show off, but it took a while to get stuck in the LG logo and now this problem doesn't seem to go away.