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Hi.
So, I bought a Galaxy A5 2016 as my new daily driver. What a beautiful phone, really. Pretty fast, better than I expected, I must say. But things are not going so well.
I have a intense usage pattern. On the morning, I use Spotify (sth like 20-30 min), then e-mail sync through the day (every 5m) + browsing and messaging apps. Then, more 40m of Spotify. Everything seems in pair with other devices with similar price and hardware specs. Until today.
As my usage pattern reports, I always use Spotify for 20-30 mins every morning. Today, I was using it, and the song suddenly stopped. As a coincidence, my 3G connection is limited - so it's not operating on its normal speed, which roams about 3Mbps~5Mbps - so I thought that the connection was dropped. When I pressed the HOME button, nothing happened. The song suddenly stopped, along with the system. 10 seconds later, the song returned to play. Less than 5 minutes later, the same bug happened again - same MO. 10 seconds off, returns, didn't happen again. Tested Spotify on the afternoon (same conditions + SAMSUNG personal music player running together), didn't happen too.
Along with that, my RAM usage is pretty high. Besides my downloaded applications, the RAM is mostly consumed by the system itself - so maybe root will fix it. But I'd like to know if anyone ran into this abnormal RAM usage. I even thought about memory leak, but that seems a bit odd, since the memory leak stopped being reported in Android 5.1.
Has anyone ran into any of this issues before? Thanks in advance.
I have it for two days now, yup, ram is at least 80% when I clean up the memory.
It's also pretty hot during the lightest use, average temperature is 35C. When idle it's at least 28C. Anyway, glass backpanel feels really hot, is it normal?
What's your average temperature?
I also want to report that i have the same problem on my A510F on MM 6.0.1 (no root). I have disabled many apps like Skype, S-voice, all the microsoft apps and some system apps that could be disabled but pretty much nothing changed... My ram usage is always around 70%, if i clean it it goes down to 55%-60% but then it gets full again. This does have an impact on the overall performance since on heavy games and generally heavy usage, the phone lags and gets hot. I want to know if ROOTING the device and installing xposed modules and/or uninstalling much of the samsung crap will help the phone breath normally. Any answer or tip is welcome
I have at least 70% of RAM usage and i think it is ok... but there ia a problem over 85-90%: then I have almost same problem as you. It's my second A5 16 and still have this problem. I don't know what to do. This issue happens increasingly. I have 5.1.1 and still hope for removing this problem with marshmallow update.
Anyone more has this problem?
Any ideas what to do?
It makes this phone useless when happens so often![emoji35]
Skrobnięte z A5 '16
konar02 said:
I have at least 70% of RAM usage and i think it is ok... but there ia a problem over 85-90%: then I have almost same problem as you. It's my second A5 16 and still have this problem. I don't know what to do. This issue happens increasingly. I have 5.1.1 and still hope for removing this problem with marshmallow update.
Anyone more has this problem?
Any ideas what to do?
It makes this phone useless when happens so often![emoji35]
Skrobnięte z A5 '16
Click to expand...
Click to collapse
Same problems on MM too, 70-85% RAM usage...hope to solve in feature updates.
Sent from my SM-T560 using XDA-Developers mobile app
I don't see anything bad in usage above 85%, the problem is closing, crashing and lagging apps.
If MM (update for Europe/Poland) doesn't fix it I will probably sell this phone. It's unbelievable to crash apps during using just a 2 of them (in my case Spotify and instagram at top and a few used before).
Skrobnięte z A5 '16
Did anyone try to fix this problem by "turning off apps in background" in programist options?
I would really like to do that, but every time when I turn this option ON and go back to settings and again go to programist settings it is turned off again - can anyone try to do it on yours phone?
Skrobnięte z A5 '16
Mine is always around 55~60% but free RAM = wasted RAM in Android
More free RAM =/= Smoothness
My A5 2016 can multitask very well (Even with games!) and not much lags
So why some of A5's has so huge problems with ram managing?
Skrobnięte z A5 '16
Is there any stock Android like ROM available for Galaxy a5?
I get MM update yesterday, after 24 I can say my problem stops. Phone seem to be faster and don't get above 87% ram usage.
I didn't restore A5 16 to factory settings.
Skrobnięte z A5 '16
I have problem with level battery when Reach 5% my mobile trun off ??? Plz slov
@up
First thing which you should do is restoring to factory settings and then we will see.
Skrobnięte z A5 '16
did this happen after u do an update?
im using A5 (2016) for my daily driver.. using spotify a lot too when comutting. never failed me until now (4 month). in my region A5 still dont get MM yet. so i manually upgrade to ROM everymonth with russia region (MM). suprisingly samsung do apply 'android security update' every month for A series.
is ur device is locked by some carrier? AT-T /other? if not try flashing with Russia ROM. u can flash with odin. fear not, ur data & apps still intact. if u flash official fw with odin.
for ram usage, i think this is not a problem. the multitasking still flawless for 2GB of ram. the feature i like from this phone is the GPS. lock very fast. im glad buying this phone. the only downside for me is 'no notification led'
Greetings to XDA members
I have a issue with my note 3 here is the detail:
Its been while when I started to notice that CPU started to behave strangely you may say how do you know?well I used CPU monitor app and I saw that both CPU load and temperature were rising and falling like this;CPU load:15%
16% 78% %40 100% 3% 4%
CPU Temp: 48 52 53 52 55 53........60 59 61 and then it goes back to 48( these numbers have seen in idle)
I didn't trust these number than I installed stability test 2.7 from play store and ran a classic test after 5 minutes of test passed temp was rised to 80 C!!! Application itself suggested that it should at least takes 15 minutes to significant errors happen(worst case).
So, What should I do? Is it a hardware problem or software? Help!
Post lacks information .
What what what .
Rom Kernel model etc etc .
JJEgan said:
Post lacks information .
What what what .
Rom Kernel model etc etc .
Click to expand...
Click to collapse
ROM:Crdroid Unofficial (I'm pretty sure the problem isn't related to ROM)
Kernel:Synergy RC18
Model:N9005
Thanks in advance
Just tell me if you need more information.
Almost forgotten... After installing kernel it seems that CPU load settled down it was less likely to jump more frequently. Unstable temperature still is a issue anyway
flightover588 said:
Just tell me if you need more information.
Click to expand...
Click to collapse
tl;dr disable/ignored app using privacy guard, use battery saving app(greenify and amplify), got Xposed then read guide
forum.xda-developers.com/android/general/guide-extreme-battery-life-t3095884/amp/
That rom got privacy guard?(setting-privacy-privacy guard)
If YES, go to advance in privacy guard.
In location, device and background, this 3 you need to monitor because almost all app that affect your battery come from here.
Google Play Service is priority, just disable/ignored permission this one first and everything should be fine.
Another possibility is kernel but almost all latest kernel for note 3 is stable now unless you pick kernel for performance.
If you want more battery saving this apps is good:
Greenify
Amplify
If you can install Xposed and knoe about Xposed take a look at this forum:
forum.xda-developers.com/android/general/guide-extreme-battery-life-t3095884/amp/
Anon_Help_You said:
tl;dr disable/ignored app using privacy guard, use battery saving app(greenify and amplify), got Xposed then read guide
forum.xda-developers.com/android/general/guide-extreme-battery-life-t3095884/amp/
That rom got privacy guard?(setting-privacy-privacy guard)
If YES, go to advance in privacy guard.
In location, device and background, this 3 you need to monitor because almost all app that affect your battery come from here.
Google Play Service is priority, just disable/ignored permission this one first and everything should be fine.
Another possibility is kernel but almost all latest kernel for note 3 is stable now unless you pick kernel for performance.
If you want more battery saving this apps is good:
Greenify
Amplify
If you can install Xposed and knoe about Xposed take a look at this forum:
forum.xda-developers.com/android/general/guide-extreme-battery-life-t3095884/amp/
Click to expand...
Click to collapse
Thanks man. It really helped. I did all of them except
xposed because xposed isn't available for Nougat yet. Thanks again I apprentice it.
I finally decided to go public with my issues after trying to figure this out by myself for months. this is about wifi issues with the modem (any app that is loading something online, can't do anything because the phone doesn't send any up or download commands) and performance problems when the battery gets low (i think its either bad BCL driver or hotplug driver)
Modem issues.
I will try to explain this as best as i can and also hope that im not alone on this one.
Let me first talk about nougat b08 as that was the first time i have encountered the issue (on 2.4ghz networks only). And NO this is not because of interferances in my area or bad wifi channles or anything. Also it's only happening on my axon 7 (All other devices like my laptop, console etc are fine.
i noticed that any app/game when saying "connecting" (or any other indicator) the wifi icon at the top stays blank (meaning there are no up and down arrows for a period of time). This doesn't happen always but way too frequently to be a minor issue.
Let's take a few examples:
-chrome: when i try to open sites sometimes the loading bar stays at the left. Wifi icon doesn't show any up or downloads (the previous mentioned arrows).
-Sync (reddit client): loading circle spins and spins without any indication of any real progress. Again the wifi icon doesn't show anything happening either)
-XDA Labs: same thing here as in Sync.
-any game with internet connection required: Same thing again.
This often results in a connection error or timeout.
Reminder that this was while i was on nougat b08. This issue never happend in 5ghz but as i mentioned previously, this is not because of any 2.4 ghz interferances etc. here is why:
i fixed the whole issue by flashing the nougat b10 modem. Now the issue was fixed and i never ran into it again until Oreo b02.
This time tho the issue persists on both wifi bands (5ghz and 2.4ghz). The issues are exactly the same as in nougat b08 apart from 5ghz being affected now as well. Flashing the oreo b03 modem doesn't do anything since its the exact same. I also tried flashing the nougat b10 up to b12 modems but the nougat modems seem to break Calls. when i had the nougat modems installed on oreo, i couldn't hear the other person and they couldn't hear me. But they did fix the wifi issue (just tested again with nougat b10 modem)
so yeah thats the issue i have currently with the modems wifi stuff. i hope my explanation was somewhat understandable.
Low Battery Performance issue (starting between 50 and 40% battery left
Now this one is weird as idk what the real culprit is. I think its either a bad BCL driver or a bad Hotplugging driver.
Here is some info on BCL by @Infy_AsiX : https://forum.xda-developers.com/axon-7/how-to/degraded-battery-bcl-device-lag-t3752545
Now if you have read the linked BCL post, you should know that the device throttles the cpu if the voltage hits a certain low threshold which decreases performance big time.
I gotta say that my battery isn't degraded. Like not at all (aside from very little which is natural with any battery that gets older and older).
But the Voltage never drops below the 3.2-3.3 Volt threshold. in fact my voltage is over 3.5+ Volt at 15% battery left. fully charged its over 4.
The time when the phone starts to lag is around 50 to 40% remaining battery. the voltage there is around 3.7+ Volt which should not trigger the BCL to throttle my device.
So maybe the BCL driver is buggy i thought, so i tried disabling it through the shell but it stays/resets to enabled. So perhaps its locked by the kernel. i also tried editing the thresholds but they reset right after to their original value as well. rebooting doesn't help this. AND YES my device is rooted with the system write protection disabled so thats not the issue as i can freely modify any system file.
So i can't say for sure if BCL is buggy. If it isnt than its definetly not the culprit because i never hit the thresholds for it to start throttling in the first place.
And about Hotplugging, im not really sure if this is the culprit either. I only know that it can disable a certain number of cores at various scenarios which depends on how ZTE configured it. And idk how i can disable it through shell commands. If thats possible at all.
I will edit this post multiple times probably tomorrow (and will post a reply when i updated the OP and what i added) as im really tired. So bare with me for now if i couldn't explain something as good (and any possible typos)
I have also weird issues,does this look normal?it can't be ,it sit on 6% for like 20minutes now
Predatorhaze said:
I have also weird issues,does this look normal?it can't be ,it sit on 6% for like 20minutes now
Click to expand...
Click to collapse
Idk. But this isn't the same issue i described in the op. In the op i was talking about low battery performance issues which cause the device to lag heavily. Not about inaccurate percentages
GodOfPsychos said:
I finally decided to go public with my issues after trying to figure this out by myself for months. this is about wifi issues with the modem (any app that is loading something online, can't do anything because the phone doesn't send any up or download commands) and performance problems when the battery gets low (i think its either bad BCL driver or hotplug driver)
Modem issues.
I will try to explain this as best as i can and also hope that im not alone on this one.
Let me first talk about nougat b08 as that was the first time i have encountered the issue (on 2.4ghz networks only). And NO this is not because of interferances in my area or bad wifi channles or anything. Also it's only happening on my axon 7 (All other devices like my laptop, console etc are fine.
i noticed that any app/game when saying "connecting" (or any other indicator) the wifi icon at the top stays blank (meaning there are no up and down arrows for a period of time). This doesn't happen always but way too frequently to be a minor issue.
Let's take a few examples:
-chrome: when i try to open sites sometimes the loading bar stays at the left. Wifi icon doesn't show any up or downloads (the previous mentioned arrows).
-Sync (reddit client): loading circle spins and spins without any indication of any real progress. Again the wifi icon doesn't show anything happening either)
-XDA Labs: same thing here as in Sync.
-any game with internet connection required: Same thing again.
This often results in a connection error or timeout.
Reminder that this was while i was on nougat b08. This issue never happend in 5ghz but as i mentioned previously, this is not because of any 2.4 ghz interferances etc. here is why:
i fixed the whole issue by flashing the nougat b10 modem. Now the issue was fixed and i never ran into it again until Oreo b02.
This time tho the issue persists on both wifi bands (5ghz and 2.4ghz). The issues are exactly the same as in nougat b08 apart from 5ghz being affected now as well. Flashing the oreo b03 modem doesn't do anything since its the exact same. I also tried flashing the nougat b10 up to b12 modems but the nougat modems seem to break Calls. when i had the nougat modems installed on oreo, i couldn't hear the other person and they couldn't hear me. But they did fix the wifi issue (just tested again with nougat b10 modem)
so yeah thats the issue i have currently with the modems wifi stuff. i hope my explanation was somewhat understandable.
Low Battery Performance issue (starting between 50 and 40% battery left
Now this one is weird as idk what the real culprit is. I think its either a bad BCL driver or a bad Hotplugging driver.
Here is some info on BCL by @Infy_AsiX : https://forum.xda-developers.com/axon-7/how-to/degraded-battery-bcl-device-lag-t3752545
Now if you have read the linked BCL post, you should know that the device throttles the cpu if the voltage hits a certain low threshold which decreases performance big time.
I gotta say that my battery isn't degraded. Like not at all (aside from very little which is natural with any battery that gets older and older).
But the Voltage never drops below the 3.2-3.3 Volt threshold. in fact my voltage is over 3.5+ Volt at 15% battery left. fully charged its over 4.
The time when the phone starts to lag is around 50 to 40% remaining battery. the voltage there is around 3.7+ Volt which should not trigger the BCL to throttle my device.
So maybe the BCL driver is buggy i thought, so i tried disabling it through the shell but it stays/resets to enabled. So perhaps its locked by the kernel. i also tried editing the thresholds but they reset right after to their original value as well. rebooting doesn't help this. AND YES my device is rooted with the system write protection disabled so thats not the issue as i can freely modify any system file.
So i can't say for sure if BCL is buggy. If it isnt than its definetly not the culprit because i never hit the thresholds for it to start throttling in the first place.
And about Hotplugging, im not really sure if this is the culprit either. I only know that it can disable a certain number of cores at various scenarios which depends on how ZTE configured it. And idk how i can disable it through shell commands. If thats possible at all.
I will edit this post multiple times probably tomorrow (and will post a reply when i updated the OP and what i added) as im really tired. So bare with me for now if i couldn't explain something as good (and any possible typos)
Click to expand...
Click to collapse
are you sure modem = wifi? I really don't know, but I think they are separate, i.e. the modem file is probably only for cell connectivity
The battery stuff is a mess, but it's probably BCL... It was very badly set on stock G firmware when I had my G. Does your phone turn off if you set a very high CPU load like Gcam pics?
Choose an username... said:
are you sure modem = wifi? I really don't know, but I think they are separate, i.e. the modem file is probably only for cell connectivity
The battery stuff is a mess, but it's probably BCL... It was very badly set on stock G firmware when I had my G. Does your phone turn off if you set a very high CPU load like Gcam pics?
Click to expand...
Click to collapse
I think so at least since in nougat b08 i fixed that issue by using the nougat b10 modem.
It could also be that its just for cell connectivity like u said. But then is the question why it still interferes with wifi somehow.
About bcl. My phone never turned off. Yeah i tried getting a high load on cpu through various apps (like gcam, games, benchmark). But they all lag like hell because of some throttle on cpu and gpu. Not thermal throttling though as this only happens on the mentioned percentages (40-50%). And the voltages are not hitting the thresholds either
My wifi just random dissappears,mostly on pie gsi.When i try to download something trough wifi,wifi is disconnecting and then connects again...not able to download big files.And on 10% battery the voltage is 3.7+.This device knows a lot software issues.
Predatorhaze said:
My wifi just random dissappears,mostly on pie gsi.When i try to download something trough wifi,wifi is disconnecting and then connects again...not able to download big files.And on 10% battery the voltage is 3.7+.This device knows a lot software issues.
Click to expand...
Click to collapse
This thread is about stock oreo though. Not pie.
And 3.7+ voltage is perfectly fine and healthy for your battery at 10%.
I suggest you make your own thread with all the issues you encounter on your setup (rom, kernel etc) and try to give an explanation as detailed as possible.
Predatorhaze said:
My wifi just random dissappears,mostly on pie gsi.When i try to download something trough wifi,wifi is disconnecting and then connects again...not able to download big files.And on 10% battery the voltage is 3.7+.This device knows a lot software issues.
Click to expand...
Click to collapse
you using any custom kernel like kran's EAS? Those have those exact problems you mentioned
Choose an username... said:
you using any custom kernel like kran's EAS? Those have those exact problems you mentioned
Click to expand...
Click to collapse
No,but i was planning to flash the EAS version right now lol.
I did a clean flash ion gsi with hellsgate reborn sinister eas and the problem looks gone,or maybe not.Happens random but less then on bootleggers.
Clean flashed again latest bootleggers with schwifty r5 kernel and speedy vendor 5.1.Wifi also just random disconnects.But one thing i notice now,i charged my battery to 100% and unplugged it,it stays at 100%.Rebooted to twrp for transfer some files to my phone and it still sits on 100%.Booted system and still at 100%.I think its odd because most of the time when i unplug at 100 it drops directly to 99%.
---------- Post added at 06:23 AM ---------- Previous post was at 06:22 AM ----------
GodOfPsychos said:
This thread is about stock oreo though. Not pie.
And 3.7+ voltage is perfectly fine and healthy for your battery at 10%.
I suggest you make your own thread with all the issues you encounter on your setup (rom, kernel etc) and try to give an explanation as detailed as possible.
Click to expand...
Click to collapse
okay thanks,and sorry.We need a thread we can discuss everything
Finally found a command that works to disable bcl. Now gotta test for a few days if it solved the low battery performance issue.
I will update the OP once i confirmed it working
For anyone interested in trying it out (for stock oreo only!):
Requirements:
-you need to be rooted of course
-Selinux must be set to permissive. Otherwise terminal emulator doesn't work
-terminal emulator app (on playstore). Im using material terminal emulator
Type in:
su
echo -n disable > /sys/devices/soc/soc:qcom,bcl/mode
Don't reboot. This will revert the changes since those are kernel files (which are not real since they are temporary virtual files) and get loaded a new everytime at startup.
In short: bcl gets enabled again
Sidenote: most results after googling for disabling bcl all had false commands. Every one i found had the "-n" missing inside the command. At last an xda post for a sony xperia phone, had the right command. Funny how the only thing that was missing was entering "-n" after "echo"
Short update: Yes BCL was the culprit in my case and disabling it helped the low battery performance issue i was having. Also no sudden shutdowns for me (since my battery isn't degraded that much as previously stated). If you experience sudden shutdowns, don't worry. BCL gets re-enabled at every boot.
As for the wifi issues, i still haven't found a way to solve this problem.
Will edit the OP later.
Update on the bcl matter: right now it actually does seem my battery is degrading. The voltage readings jump up and down which shouldn't be happening. Perhaps this is the reason i thought my battery was fine since the voltage was fine when i checked it. But in reality it often jumps down and up randomly. This started to happen more often since yesterday
Disabling bcl worked without issues at first. But today i noticed that my battery has problems if i disable bcl. The percentage jumps down way too quick. It jumped from full charge to around 47% and stayed at that percentage for over an hour even tho i was actively using my phone (while the real percentage should have been higher since it hadn't used 53% in such a short time). So i guess the bcl lag i was experiencing was infact first symptoms of degradation of by battery.
I also had my first sudden shutdown at 9%
Its not certain tho yet. I ordered a new battery. Gonna replace it and then i will see if that really was the issue
GodOfPsychos said:
Its not certain tho yet.
Click to expand...
Click to collapse
Wow well i guess this answers that question (see screenshot)
1768mah at full charge. So yep, im so gonna change my battery
Battery health 56%...almost half.
Edit: i know accubattery is not THE most accurate way to show the actual degradation. But its a rough estimate. So the actual capacity could be slightly higher or lower. Nevertheless, it's still clear my battery is clearly degraded by now.
GodOfPsychos said:
Update on the bcl matter: right now it actually does seem my battery is degrading. The voltage readings jump up and down which shouldn't be happening. Perhaps this is the reason i thought my battery was fine since the voltage was fine when i checked it. But in reality it often jumps down and up randomly. This started to happen more often since yesterday
Disabling bcl worked without issues at first. But today i noticed that my battery has problems if i disable bcl. The percentage jumps down way too quick. It jumped from full charge to around 47% and stayed at that percentage for over an hour even tho i was actively using my phone (while the real percentage should have been higher since it hadn't used 53% in such a short time). So i guess the bcl lag i was experiencing was infact first symptoms of degradation of by battery.
I also had my first sudden shutdown at 9%
Its not certain tho yet. I ordered a new battery. Gonna replace it and then i will see if that really was the issue
Click to expand...
Click to collapse
I had these exacts same problems.Now with a new battery I have the idea the problem is still here
Hello Developers..
I have been using Moto G4 Plus from last 1 weeks with Oreo stock rom. Later I came to know to about 64 bit Pie build on xda. I flash latest 64 bit TWRP and Arrow OS Pie build. Everything seems fine but whenever I play Call Of Duty mobile, the phone get freeze and Restarts randomly. I disable heads-up notification as per one thread but problem was not fixed. So I flashed different 64bit android pie build available on xda but problem still persist. So does anybody knows it's fix or could it be possible for developer to bring this fix in future updates.
So after long research online i found fix for random reboots.. Its cause by high cpu frequency (ie 1651 MHz)kept by default in looney kernel settings. Its fix by lowering frequency by 1516 MHz and below. According to device specs its highest frequency is 1561 MHz and overclocking it can cause reboot issue due to high cpu temperature.
Hello everyone,
As Android 10 and above seem to be a bit sluggish for this device, I decided to make an Android 9 LineageOS 16.0 build for my soon 9 year old SM-T800 tablet. It seems to be much smoother and stable then Android 10 and even while doing heavy web browsing, watching YouTube in 1080p or using Google Maps navigation in satellite mode, nothing crashed for me. The only issue I found is that the tablet gets a bit hot when actively using it. To sorta mitigate the issue, I recommend rooting the device, installing a kernel manager and limiting the CPU frequency to 1700MHz (where default is 1900MHz). The ROM itself has been very stable to use, only camera video recording and fingerprint scanner are not working as of now.
What works?
Boot
Wi-Fi
Bluetooth
Front and back cameras (photos only)
Video playback
Audio
Sensors
Flash
GPS
Microphone
What doesn't work?
Video recording in camera
Fingerprint scanner
Bluetooth is randomly hanging up when connecting peripherals
Offline charging
You tell me the rest
This build is SELinux Permissive!
Flashing instructions (clean flash):
Ensure you're on the latest Marshmallow firmware for your tablet
Use LATEST OFFICIAL TWRP, or LineageOS recovery (attached with the ROM)
Wipe Data and System partitions from recovery
Flash ROM zip from internal storage, SD Card, USB OTG or ADB sideload
Flash GApps (optional, my recommendation is OpenGApps 9.0 arm pico or nano)
Flash Magisk (optional)
Reboot and voila!
Otherwise, this ROM is good for users who wants better smoothness and stability and doesn't want to downgrade all the way down to Android 7.1.
If anyone wants a build for a model different than chagallwifi, tag me and I can try to build (You'll have to test it yourself!).
Get the builds from here:
MediaFire
MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.
www.mediafire.com
Sources:
AOSP: https://source.android.com/ (the base for everything)
LineageOS: https://github.com/LineageOS (the ROM)
Exynos5420: https://github.com/exynos5420 (Device, kernel and vendor sources)
Screenshots attached below
Screenshots of the build:
Do you plan on fixing the fingerprint sensor anytime soon? I use it on the LineageOS 17.1 build pretty often
Penguin76 said:
Hello everyone,
As Android 10 and above seem to be a bit sluggish for this device, I decided to make an Android 9 LineageOS 16.0 build for my soon 9 year old SM-T800 tablet. It seems to be much smoother and stable then Android 10 and even while doing heavy web browsing, watching YouTube in 1080p or using Google Maps navigation in satellite mode, nothing crashed for me. The only issue I found is that the tablet gets a bit hot when actively using it. To sorta mitigate the issue, I recommend rooting the device, installing a kernel manager and limiting the CPU frequency to 1700MHz (where default is 1900MHz). The ROM itself has been very stable to use, only camera video recording and fingerprint scanner are not working as of now.
What works?
Boot
Wi-Fi
Bluetooth
Front and back cameras (photos only)
Video playback
Audio
Sensors
Flash
GPS
Microphone
What doesn't work?
Video recording in camera
Fingerprint scanner
You tell me the rest
This build is SELinux Permissive!
Flashing instructions (clean flash):
Ensure you're on the latest Marshmallow firmware for your tablet
Use LATEST OFFICIAL TWRP, or LineageOS recovery (attached with the ROM)
Wipe Data and System partitions from recovery
Flash ROM zip from internal storage, SD Card, USB OTG or ADB sideload
Flash GApps (optional, my recommendation is OpenGApps 9.0 arm pico or nano)
Flash Magisk (optional)
Reboot and voila!
Otherwise, this ROM is good for users who wants better smoothness and stability and doesn't want to downgrade all the way down to Android 7.1.
If anyone wants a build for a model different than chagallwifi, tag me and I can try to build (You'll have to test it yourself!).
Get the builds from here:
MediaFire
MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.
www.mediafire.com
Sources:
AOSP: https://source.android.com/ (the base for everything)
LineageOS: https://github.com/LineageOS (the ROM)
Exynos5420: https://github.com/exynos5420 (Device, kernel and vendor sources)
Screenshots attached below
Click to expand...
Click to collapse
For cpu temperatures/speed limits,
Which cpu govenor in the kernel did you use?
You could build a version with the kernel limiting to 1700Mhz so people need to mess around with root.
I recommend upgrading the thermal pads inside the tablet as well
bluess57 said:
For cpu temperatures/speed limits,
Which cpu govenor in the kernel did you use?
You could build a version with the kernel limiting to 1700Mhz so people need to mess around with root.
I recommend upgrading the thermal pads inside the tablet as well
Click to expand...
Click to collapse
The current governor I used is schedutil, I'll try setting it to interactive and limiting the CPU frequency next build
Zakaria2328 said:
Do you plan on fixing the fingerprint sensor anytime soon? I use it on the LineageOS 17.1 build pretty often
Click to expand...
Click to collapse
I currently can't find the cause of the sensor not working. It reaches the fingerprint setup successfully, but holding or sliding my finger on the home button doesn't seem to do anything.
Hi Just a quick question.. my understanding is that android 9 does not support dark mode, that your screenshot almost seem to suggest that it does.
my reason for asking is that I am visually impaired, and really can't read anything on a white background. anyway just wanted clarification before I try out this rom.
Cheers
Quidam67 said:
Hi Just a quick question.. my understanding is that android 9 does not support dark mode, that your screenshot almost seem to suggest that it does.
my reason for asking is that I am visually impaired, and really can't read anything on a white background. anyway just wanted clarification before I try out this rom.
Cheers
Click to expand...
Click to collapse
Hi! Android 9 has a partial dark mode. The built in system apps as well as the system UI is dark, but third party apps do not support this dark theme and are light by the default. Many third party apps can be manually set to dark theme.
Penguin76 said:
Hi! Android 9 has a partial dark mode. The built in system apps as well as the system UI is dark, but third party apps do not support this dark theme and are light by the default. Many third party apps can be manually set to dark theme.
Click to expand...
Click to collapse
thanks, I think I'll give it a crack, i'm using the latest Lineage 20 build from another thread and to be honest it's super buggy lol. If this doesn't work out I can always go back to the 17.1 build which was actually pretty stable, but as you point out it's a bit on the sluggish side. Cheers
Or you might try unofficial LineageOS 18.1 (A11) which perfectly supports dark theme. I'm running it on my SM-T805 without any problems.
Cheers
Toscha
The problem
toscha42 said:
Or you might try unofficial LineageOS 18.1 (A11) which perfectly supports dark theme. I'm running it on my SM-T805 without any problems.
Cheers
Toscha
Click to expand...
Click to collapse
The problem I found with A10+ ROMs is that some slightly graphics heavier apps or even Google Maps in the browser can crash itself or even lock up the tablet completely.
For those graphics apps I can't tell. But Google Maps I use a lot and it's absolutely stable.
Cheers
Toscha
toscha42 said:
For those graphics apps I can't tell. But Google Maps I use a lot and it's absolutely stable.
Cheers
Toscha
Click to expand...
Click to collapse
The app itself works fine, but the Google Maps website will likely crash when it's opened in a browser when starting to navigate around the map. And there are many other websites that do crash the browser as well.
Penguin76 said:
The problem
The problem I found with A10+ ROMs is that some slightly graphics heavier apps or even Google Maps in the browser can crash itself or even lock up the tablet completely.
Click to expand...
Click to collapse
Watching youtube works fine, as that's all i do with this tablet now, other than checking my email. Setting up the e-mail did freeze the tablet a couple of times
hello,
So I tried out this rom and wanted to report back my findings.
I found it to be both stable and fast, but there were a few issues, which has led me back to 17.1 LuisROM which given my particular needs really does seem to be the best option. I have actually tried both18 and 20, but neither of them are as stable as17.1, at least based on the particular set of apps I use.
Anyway, the issues I had were:
1) the partial dark mode support was certainly not bad, but given the fact that apps don't follow the system theme, and I could find no way of setting the Google app to dark mode, it was less than ideal. this is no fault of the build at all It's just a limitation of being Android 9, and I imagine for most people it would not be an issue nor a reason not to use this ROM
2) I had a weird issue when I shut the tablet down and plugged it in to power source. The battery icon showed and and then the tablet froze up, so that if I disconnected it from the power source the battery icon still continued to display and the only way to boot it back up was to press and hold the home key, volume down and power. this would seem to suggest there is an issue with the Kernal/ boot loader.
3) I have the official Samsung case with built-in keyboard, but there appeared to be a problem with bluetooth and I simply could not get it to connect. this was the deciding factor like to go back to 17.1
Cheers
b
.
Do you have a link to LineageOS 18.1 705
Quidam67 said:
hello,
So I tried out this rom and wanted to report back my findings.
I found it to be both stable and fast, but there were a few issues, which has led me back to 17.1 LuisROM which given my particular needs really does seem to be the best option. I have actually tried both18 and 20, but neither of them are as stable as17.1, at least based on the particular set of apps I use.
Anyway, the issues I had were:
1) the partial dark mode support was certainly not bad, but given the fact that apps don't follow the system theme, and I could find no way of setting the Google app to dark mode, it was less than ideal. this is no fault of the build at all It's just a limitation of being Android 9, and I imagine for most people it would not be an issue nor a reason not to use this ROM
2) I had a weird issue when I shut the tablet down and plugged it in to power source. The battery icon showed and and then the tablet froze up, so that if I disconnected it from the power source the battery icon still continued to display and the only way to boot it back up was to press and hold the home key, volume down and power. this would seem to suggest there is an issue with the Kernal/ boot loader.
3) I have the official Samsung case with built-in keyboard, but there appeared to be a problem with bluetooth and I simply could not get it to connect. this was the deciding factor like to go back to 17.1
Cheers
b
.
Click to expand...
Click to collapse
Hello, I'm sorry for the issues you experienced with the ROM. I checked both of the issues and the offline charging issue seems to be there for me too. As you mentioned, it might be related to kernel, but I sadly can't find the actual cause of it as I'm still pretty new new to the world of Android development and I'm still learning how everything works. The Bluetooth issue is something I have now experienced as well. I tried connecting a pair of BT earbuds and they seem to be stuck at connecting at the Bluetooth page in settings. For now I'll update the known issues with those two bugs and maybe one day I'll find out what causes them. And by the way, since you now installed Android 10 on your tablet, how is it for browsing sites? Do sites crash often? Since this is the main thing I use the tablet for (and occasionally watching YouTube and navigation in the car).
Cheers
Penguin76
Penguin76 said:
Hello, I'm sorry for the issues you experienced with the ROM. I checked both of the issues and the offline charging issue seems to be there for me too. As you mentioned, it might be related to kernel, but I sadly can't find the actual cause of it as I'm still pretty new new to the world of Android development and I'm still learning how everything works. The Bluetooth issue is something I have now experienced as well. I tried connecting a pair of BT earbuds and they seem to be stuck at connecting at the Bluetooth page in settings. For now I'll update the known issues with those two bugs and maybe one day I'll find out what causes them. And by the way, since you now installed Android 10 on your tablet, how is it for browsing sites? Do sites crash often? Since this is the main thing I use the tablet for (and occasionally watching YouTube and navigation in the car).
Cheers
Penguin76
Click to expand...
Click to collapse
Klimtwifi build?
Penguin76 said:
Hello, I'm sorry for the issues you experienced with the ROM. I checked both of the issues and the offline charging issue seems to be there for me too. As you mentioned, it might be related to kernel, but I sadly can't find the actual cause of it as I'm still pretty new new to the world of Android development and I'm still learning how everything works. The Bluetooth issue is something I have now experienced as well. I tried connecting a pair of BT earbuds and they seem to be stuck at connecting at the Bluetooth page in settings. For now I'll update the known issues with those two bugs and maybe one day I'll find out what causes them. And by the way, since you now installed Android 10 on your tablet, how is it for browsing sites? Do sites crash often? Since this is the main thing I use the tablet for (and occasionally watching YouTube and navigation in the car).
Cheers
Penguin76
Click to expand...
Click to collapse
Hey there,
I wouldn't exactly call myself a power user, but I have not suffered a single website crash on the particular build I am using, Which I believe was created by a very knowledge Developer last year. It might be worth noting that I use Samsung Internet browser, Which in my opinion offers by far the best overall experience, Including a flawless dark mode option that seems to work for every website.
One thing I will mention about the spilled is that the developer seems to have gone AWOL and the download link to his builds no longer works. That said, I have a copy of the build on my google drive, download link SM-T800 Lineage 17.1
Give it a spin and see what you think, Overall I'm very happy with its stability and performance. Because of my visual impairment I mostly use audio based apps, such as Google Podcast, Audible, Poweranp Pro, But I also occasionally use Newpipe and VLC player and again, have not had any issues.
PS Good on you for creating your own build, I almost considered trying to do it myself but it's just too much to take on considering I can hardly see the screen lol
LuckyTheCoder said:
Klimtwifi build?
Click to expand...
Click to collapse
I can try to do a build for klimtwifi today