I'm fairly sure I got some malware in my Motorola Edge Plus 2023, so I did a factory reset. Other than the weird popups (games installed, etc.) and settings mysteriously changing, it was still lightning fast. Now after the reset, very very slow, especially with texts. It takes over 30 seconds to open a text msg. Any ideas?

I ended up with my Android device (Google Pixel 7a, on AOSP 15) having accumulated about **~14k** videos/photos files in /sdcard/DCIM/Camera. As a consequence I have noticed some very *unexpected* delay when listing this directory in this particular folder, *but also* in general. I do run the following tests

[user@archlinux-box ~] $ ## having the Pixle 7a connected via USB-3 port USB-debugging
[user@archlinux-box ~] $ adb shell
lynx:/ $ ## time the listing of /sdcard/DCIM/Camera
lynx:/ $ (cd /sdcard/DCIM/Camera; time ls | wc)
  13980   13980  398700
    0m04.55s real     0m00.07s user     0m00.31s system
lynx:/ $ ## exclude that it is a fault ot ls binary I check via find too
lynx:/ $ (cd /sdcard/DCIM/Camera; time find | wc)
  13981   13981  426662
    0m05.25s real     0m00.07s user     0m00.41s system

Being suspicious that listing ~14k files may very well take some time, yet not ~5seconds (and less so upon 2nd time directory listing reads, given I would assume some caching to occur) I tested if this is related to the specific folder /sdcard/DCIM/Camera doing this

lynx:/ $ ## create and enter a test directory to hold 14k files
lynx:/ $ mkdir /sdcard/14k-files-dir
lynx:/ $ cd  /sdcard/14k-files-dir
lynx:/sdcard/14k-files-dir $ ## create 14k files somewhat efficiently
lynx:/sdcard/14k-files-dir $ ## have filenams be comparable length as photo files
lynx:/sdcard/14k-files-dir $ PREFIX='filename-similar-to-photo-files-file-no-'
lynx:/sdcard/14k-files-dir $ seq 1 14000 | sed 's/^/'"$PREFIX"'/' | xargs sh -c 'touch "$@"' _
lynx:/sdcard/14k-files-dir $ ## rerun tests
130|lynx:/sdcard/14k-files-dir $ time ls | wc
  14000   14000  618894
    0m01.92s real     0m00.10s user     0m00.28s system
lynx:/sdcard/14k-files-dir $ time find | wc
  14001   14001  646896
    0m00.72s real     0m00.03s user     0m00.13s system
lynx:/sdcard/14k-files-dir $ time ls | wc
  14000   14000  618894
    0m00.80s real     0m00.10s user     0m00.13s system

as can be seen this time, the directory listing is far faster (particularly once it appears to be in cache). Lastly I wanted to test - given Android being based on linux kernel - how well my 10+ year laptop would compare.

[user@archlinux-box ~] $ ## running test on a 10 year old laptop
[user@archlinux-box ~] $ mkdir 14k-files-dir
[user@archlinux-box ~] $ cd 14k-files-dir
[user@archlinux-box 14k-files-dir ] $ ## create 14k files somewhat efficiently
[user@archlinux-box 14k-files-dir ] $ ## have filenams be comparable length as photo files
[user@archlinux-box 14k-files-dir ] $ PREFIX='filename-similar-to-photo-files-file-no-'
[user@archlinux-box 14k-files-dir ] $ seq 1 14000 | sed 's/^/'"$PREFIX"'/' | xargs sh -c 'touch "$@"' _
[user@archlinux-box 14k-files-dir ] $ ## run tests on laptop
[user@archlinux-box 14k-files-dir]$ time ls | wc
  14000   14000  632894

real    0m0.025s
user    0m0.015s
sys     0m0.014s
[user@archlinux-box 14k-files-dir]$ time find | wc
  14001   14001  660896

real    0m0.030s
user    0m0.019s
sys     0m0.020s
[user@archlinux-box 14k-files-dir]$ time ls | wc
  14000   14000  632894

real    0m0.021s
user    0m0.009s
sys     0m0.015s

As can be seen the speed listing directories differ vastly. I am puzzled to determine the reasons. 1. It is mostly unclear why the direct "on Android device" comparison of directories listing times is so huge (1-0.7seconds vs 4-5seconds for /sdcard/DCIM/Camera) 2. It is puzzling as I would expect both folders residing on the same block-device and filesystem being both below /sdcard ? 3. In a bigger picture however I cannot wrap my haed around (and seek with this question the causes that a 10 year old linux laptop can list 14k files at 0.02seconds while a rather recent Google Pixel 7a needs 0.7 to 5+ seconds, so plainly 250 times as long? #Update# I have found this info on redit which mentions > As mentioned below, it seems on Android 11 ALL file access to external storage goes through SAF, even when targeting API 29 and using standard file access functions. This is a change from Android 10. This explains the difference in speed. I hence wonder (with regarding to the causes I seek in this question here) if this this still the reason? Also with this new information I cannot still see why the two folders still have 5-10 times different directory lookup speeds.

I'm using a Samsung A03 and the factory usb-C to usb-C cable provided by Samsung. I've actually noticed this in other Samsung models I've owned in the past. If I'm playing a game when I connect the charger, it almost makes the phone completely unresponsive where it takes up to 15-20 seconds for any input to register. This usually leads to me hitting the home or active apps button multiple times thinking that maybe I missed the button the first time. The frustrating thing is that every input is queued leading to "System UI not responding" message and myself throwing a tantrum like a 3 year old

My phone is a cheapy Nokia C110. When I plug it in for charging, it acts like the electricity in the walls is inputting way too much data for the phone to handle. It starts not responding, apps start shutting down and everything crashes to home screen. I have plenty of space for processing, but every time I plug it in it, "downloads the universe," without downloading anything at all besides a charge to the battery. It really only does this when charging, not even when I'm actually downloading something. It is heavily getting on my nerves and I already had one phone before it that acted stupid like this, it ended up a pile of scrap. This one I've never treated badly, but persists to get worse and worse. I am using the factory cable. Can anybody help me fix this?

I have three phones where the upload speed is terribly slow (below 0.1MBit/s) over WiFi. Download speed is normal. Upload over mobile data is fast. Only when using WiFi, upload is slow. Tried in different WiFi networks. When trying other devices (phones and laptops), upload is fast using the same WiFi network. Only thing in common for the affected phones: Used them in Egypt on vacation. But did not install anything, so don't know what could be the cause. Using Android 13. Any advice?

I'm using AdAway in VPN mode to block all ads on 3 phones and sometimes apps and sites won't load at all or load slowly. I'm using 4G+ and getting 50 mbps download speed. Phones are Realme Narzo 50 5G and 2 Motorola Moto G50 5G. All sites and apps sometimes freeze during loading, like every 10 loads there is a freeze or very slow loading.

So, recently I got a new Huawei Y6s and transferred all my data to my HP Elitebook 840G1. It is just 5GB of data with almost 45000 photos. It shows about 1 day on the PC transfer dialog box. I am very confused, I mean I transfer two to three movies up to 8GB of data and they transfer just fine. I don't know, I think that maybe because of a large number of files, it makes the transfer slow. It is worth noting that a movie with about 4GB of data will transfer in just 10 minutes, but these photos though, are 45k in number but 5GB of data is taking forever to transfer. What shall I do? What's a better transfer method?

My Samsung Galaxy S7 with Android 8 is super sloooow... even happens now that it takes so much time to unlock the pattern screen that it will go black again because of the timeout... when I click into an input field, it can take 20-30 seconds before keyboard appears... it's just becoming unusable. Not always, sometimes in another part of day it happens that it's not so slow, but right now the problem persists. How do I fix this? I tried different tools to see [what's consuming the CPU](https://android.stackexchange.com/questions/197860/cpu-usage-by-app-on-android-8) but all those apps monitoring this are of no use since they are just showing themselves, probably because my device is not rooted. And I am not sure if I want to start rooting my device in this situation. Also, my 256 GB micro SD card probably has some problems, because sometimes longer videos get corrupted. Not sure if it's related, but the situation becomes a bit complicated.

I have enabled Android 11 easter egg by dialing 3 times and unlocking "11" now I have cat controls enabled when I slide down settings shortcut menu on my Poco F2 Pro (MIUI 12 - 12.2.4), and I do not know how to disable this. I honestly don't mind having these controls there, but my UI became very laggy since I've done this (there were no POCO launcher updates or any updates for that matter hence, "cats" are the main suspect). Anyone knows how to disable them?

I have a Moto G7 that is 2 years old. Some apps take a super long time to open. In general, the phone is pretty responsive, but 1/5th of apps are nearly unusable. Right now, I am having pretty severe issues with Discord. The app works on the phone but takes ~80 seconds to open when I have other things open. If I have closed everything else on my phone, it will take around 30 seconds to open. It will hang on the Discord logo on startup: ] Questions: * Why is Discord so slow to open on my phone? * How can I investigate this kind of issue? * Is my phone damaged? * Is my phone using a different chipset than other phones and some apps are not compiled for it? * If I buy a new phone, what should I do to see if Discord (or other apps) will run fast? --- Just to provide context, most apps open in under 1 second. Apps that I just tested: * LinkedIn * Facebook * Zoom * Spotify * Strava * Garmin Earthmate * Netflix * ... etc --- Info about my phone: * Motorola G7 * Model Number: XT1962-4 * Hardware Version: PVT * Android 10 * Discord Version: 106.12 - Stable

Granted, at 2GB ram Mediatek MT6737, I don't have the fastest phone but why is it that I have 2 apps that are very sluggish while others are more, seemingly, graphic intensive yet much snappier? What can I do (besides the obvious - clean up the phone) to speed up these apps. I'm rooted. Like this app: https://play.google.com/store/apps/details?id=com.blockfolio.blockfolio

**Question How to cure Battery draining and lagging problem** I have lyf water 7 ls-5504 mobile it's been rooted through super user to use link2sd and link apps. But before rooting it's have huge proble of draining battery it's battery drains 25% within if screen off to 10-15min from 100% to 75% very fast. One day it got battery calibration problem to it showed 0% and still it was working... Then I went to sevice center and they formatted and installed th android 5.11 stock rom again they electrically tested said battery is okay but software problem or may be software draining it. As I googled and founded that some softwares setting consumes battery and to find them and kill or.force.stop.them and to cha he settings... Which switch off did ie. Developer option> windows animation scale / transaction animation scale/ animator duration scale This option and GPU rendering I turned off and Bluetooth WiFi off and background process limit to 2 in setting developer options which reduced the battery draing in off screen but still while using its draining to fast in compared to same company other model with same 3000mh battery. So after rooting I installed greenify and accu battery to solve the battery charging or draining problem still it's same. I tried to hybernate through greenify app one or two apps which are silently memory resident but I can't restrict system (google.play services) so I screenshot the developer option process stats to refer you apps running in memory From above photo I have given to give reference how much mh or percentage battery is consumed in charging and discharging . If any expert can find the reso. Or app of its draining battery fastly and second phone hangs lags and respond to late and stuck in browsing many times and many time I have to close all running apps and restart them again. Is it due to rooting or.permissoon apps or link2sd apps or due to accubattery or greenify. As link2sd accubattery or greenify is no where in process stats ... I had not linked or moved system apps or random used apps to external sd card.. Now if u can help or advice.me how to redicate or troubleshoot or find the app which is draining the battery or hanging or lagging . The phone....any more reports or details required for your refrence I can send screenshot ...any opinion advice to solve help will be welcomed Following is screenshot of battery apps usage of android 5.1.1 native Following is accubattery aps stats infor.of battery discharges and charging stats From above photo I have given to give reference how much mh or percentage battery is consumed in charging and discharging . If any expert can find the reso. Or app of its draining battery fastly and second phone hangs lags and respond to late and stuck in browsing many times and many time I have to close all running apps and restart them again. Is it due to rooting or.permissoon apps or link2sd apps or due to accubattery or greenify. As link2sd accubattery or greenify is no where in process stats ... I had not linked or moved system apps or random used apps to external sd card.. Now if u can help or advice.me how to redicate or troubleshoot or find the app which is draining the battery or hanging or lagging . The phone....any more reports or details required for your refrence I can send screenshot ...any opinion advice to solve help will be welcomed

The problem is high IO, mainly read 50 to 150 MB/s (shows always as 100% tho), for about one minute of despair, lowering the quality of the android realm user experience. The only way to know for sure, would be https://www.xda-developers.com/check-io-usage-iotop-android/amp/ So, i would need root and a specially compiled kernel (rom?). But, if you could hint me, mainly if yours have an iotop like app, it could be enough. Android 6.0.1 I tried stopping gallery, i thought it was scanning media, didnt help. During high IO, i saw zygote, /system/bin/installd, system_server use a bit cpu but on top of the list, but that is a proccess, not an app (that we could stop). I use simple system monitor app. And i need to know HINTs of the app/proccess, not the overall IO neither what specific proccess here is causing trouble (as hints may suffice), so I can try stopping them by chance. Thats why my question differs from: https://android.stackexchange.com/questions/132659/view-disk-utilization-activity (also the accepted answer there doesnt answer about showing specific proccess IO, that is in the body of the question, therefore the accepted is just a partial answer).

At work we have a bunch of Casio handheld android terminals (DT-X400). They do not have any connectivity to the internet (so no updates), almost all apps are disabled except for those we use for work. We used them for about a year, and recently got a few more. When we started using the new ones, we discovered that they perform a way, way better: - no lag; - navigating within applications is fast and smooth; while the others feels sluggish: - it takes few minutes to boot up; - often it lags while doing simple actions, like scrolling on small lists; - opening apps takes a long time (> 30 seconds for calculator) - when you click on the app icon it looks like it freezes, then after a while screen goes black and after few more seconds app opens up. The new ones performs a lot better when doing same tasks. They are all the same model, hardware is the same, drivers versions on every device are also the same. All of these terminals runs Android 8.1. I tried clearing memory, disabling all the apps I can, later did a factory reset, but performance did not improved. So my questions are: - **What can cause such slowdowns of android devices?** - **Is there any way to improve performance, without getting root access?** **Update:** As of the suggestions in the question comments, I have tried swapping bateries from the new devices to the old ones and also powering them completely off. Neither option showed any performance improvements. I am also aware about aging flash memory, after the weekend I will try to run some test on both devices to compare memory performance and update my question with the results and methods used.

First of all, I would like to say that I recognize how tiring it must be to read about people asking for help to solve problems all the time. I tried to not be that person... but here goes my story. I have Galaxy S6 (SM-G920i), 4.5 years old, that I used a lot, and always served me well (within its capabilities). It is running Samsung's stock Android 8.1. However, two days ago, out of nowhere, he became excessively slow. It was very sudden: in a second I was reading some messages on WhatsApp, and in the next second the device was not responding, taking many seconds to answer any command from me. I decided to restart it. But even that I couldn't. It was as if it didn't recognize that I was hitting the screen lock button. Then I forced a shutdown (I connected it to the charger, and held the power off + volume key). After that, I turned it on again, but now the phone was stuck in the boot loop: taking 5 or 6 minutes to boot (screen with the Samsung logo) and as soon as it went to the lock screen, it restarted on its own. I did a search on some specialized sites and forums, and the first recommendation was to "Wipe Cache" through the recovery mode. I was able to enter recovery mode, but I received the message "NO COMMAND" on a blue screen with the green android! Moments later, while I was searching about that new and unexpected error, the recovery screen finally appeared. I selected the option to clear the cache (Wipe Cache Partition), waited for completion, and then restarted the device... No success there! The problem persisted. Bootloop again. The next recommended step now was to perform a factory reset. Against my will, I did. But, unfortunately, it did not solve the problem: the smartphone is still very slow, it is taking several minutes to boot up, it is taking 3 or 4 seconds to respond to simple commands (lock, unlock, scroll, etc...) and is exaggeratedly slow to open any application (simple as it may be, such as a calculator). Sometimes it hangs and gets hot (e.g. if I try to open the camera). Even in the safe mode, it behaves this way. I am aware that this problem may be something related to the hardware since the storage units have a life cycle (although unlikely, it is possible that this occurred in less than 5 years). That said, I am also aware that the problem may not have a solution. On the other hand, hope dies last: have you guys ever seen something similar, even on other devices? Am I missing something? Is there a path that I have not explored? Is it (soft or hard) bricked? Or, considering the facts, it is indeed a dying device? Thank you for your time! **TL;DR**: A Samsung Galaxy S6 with 4.5 years of use suddenly became laggy and unresponsive. "Wipe cache partition" and "Factory reset" were unable to restore device performance. Is there a solution?

I have heard about intensive apps causing frame stutters on Android, but this isn't apparently. I'm using a Huawei P10 Lite with Android EMUI 8 (Oreo), and the stutters in this case only happen when I touch/swipe on the screen. For example, if I swipe fast and then release my finger, the screen momentum effect on android just works fine, as it is 60fps, but when I physically touch the screen, doesn't matter the number of fingers I have on it, it just stutters, like if the framerate dropped to about 20 or 30 fps idk. However, I tried installing one of those control center dropdown menus for android, specifically the "Mi Control Center: Notifications and Quick Actions" by Treydev Inc; I did it because the dropdown menu was the first thing where I noticed the issue. It didn't work, and it seemed to drain my battery a bit, so I just removed it, and weird enough so did the stutter issue. For a while it seemed to be gone, and I tried rebooting the phone to make it sure, but after booting it back, the problem returned. I don't think it's any of the apps I have installed, as I only use duolingo, termux, duckduckgo and like. The phone isn't rooted, and no launchers or 'customization' apps are being used. If it's a video, android scroll momentum or anything, it just works fine, only when the screen is touched. Thanks in advance.

My apps won't start up if they do its not long enough to use them. Either they just close as soon as i open them or a message reading (app name) has stopped responding and its even apps that I haven't opened like my Google play will pop up saying it has stopped. I'm not sure what to do I've shutoff and restarted my phone I've uninstalled and reinstalled my apps anf it works for a minute but then it's right back to crashing. I can't even use google to search it won't allow me to type more than 1 letter and it freezes then closes the app...

When I turn on the screen on a sleeping (but not powered off) high-end Samsung Android 7 Nougat device, the device is often very unresponsive (lagging) for 20-200 seconds. Using the excellent Simple System Monitor (SSM) , I can see that it's not a CPU or RAM issue. There also is only minimal network activity during this time. The issue appears to be *something* writing to internal storage. In all the SSM graphs, it's the only graph that shows a high level of activity during the unresponsive period. How can I determine which process is performing all that writing to internal storage ? The device is *not* rooted, nor does it have external storage.

I have a Samsung Galaxy J5 2016. It's gotten extremely slow and buggy (>10 crashes a day, waiting more than 30 seconds to open default apps, ...). I've done a factory reset, with removal of all data, including SD card. And... It's just the same. I'm already looking around for a new phone, but I'm wondering what can cause this? When I google why phones get slower over time, they point to more and heavier apps. But this doesn't explain my case. What can cause this behavior, even after a reset?

I factory reset my Galaxy A10e then immediately install Ookla's Speed Test app. Over Wifi I get 100 to 200mbps on repeated tests. After installing basic mainstream apps like Spotify, Pandora, etc and updating Google's and the Samsung phone's preinstalled apps the Ookla Speed Tests give me a maximum speed of approx 30mpbs. I have to factory reset my phone and not install apps to keep the higher speed. What gives?