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Custom ROM is failure, the cause of failure is very simple, because there is no consideration to the Se.Android, the method including the use of the packaging system is wrong, because the device can not use Odin, want more friends to know about it!
http://selinuxproject.org/page/SEAndroid
Mod edit: Deleted quote removed
i believe this is a security feature for android. to prevent spam and other thing like that.
security enhanced for who ?
artojeda1988 said:
Mod edit: Deleted quote removed
i believe this is a security feature for android. to prevent spam and other thing like that.
Click to expand...
Click to collapse
Oh really, I doubt that, unless you define security for who. Like, NSA make an app for android to help us fight spam ? Think again, what app would N.S.A. make for us ? You can find and remove the app using other apps, like android tuner, android assistant, battery monitor widget, and others.
Whatever you think it is, take a look at SEAndroid's permissions. Then compare that to any super-user app you have/use. SEAndroid has ALL permissions. Still, the app doesnt 'exist' in app store, app lists, and the likes. No choice to install nor uninstall it ?
I removed it, and among several results, the sms messaging is faulty now. So much for security feature.
Even as security feature has two sides <to be seen from>. What do you think ? There's apparently tons of threads on this subject inhere under a spread of various mobiles, but like this one there aren't always much to gain. Frankly, I don't GET the OP's point in posting this thread..seems it starts off with rhetorical question, then the actual post:
'custom ROM is failure' . uhm ok - what ? ... 'there is no consideration to se.android' uhm ok..what ?? i could go on by every sentence following. 'wrong packaging' , 'device cannot use odin' etc etc The OP is just too strange for me. Sure, I don't get all the jargon maybe, not.
and the the link. Can someoone tell me the point of the OP ?
artojeda> I don't even consider it a security feature, and it doesn't prevent spam IMO. Why is it a feature, when is has no settings ? A feature has settings, right ? This SEAndroid has no settings, it is not appearing under apps, and it does not seem to be able to be installed (or uninstalled) through the app market. I hides undercover in the memory/cache and dumping it, makes it re-load again. With a rooted phone, it consistently comes up with a grey triangle notification message saying this
'Detect Information. The device has detected and application attempting unpermitted actions. To protect your device, it is recommended you reboot.'
OK some questions one by one: WHY..
00) WHY is it called security app ? is it a 'NSA Security app' for android or is it a 'security app' from NSA, what's the difference ? DOes it secure NSA or does it secure YOU?
0) WHY does this app(seandroid> not identify itself in the message, or the notification message header ? Pressing the notification does nothing.
1) WHY is this 'app' referring to the device in question as 'device' ? It KNOWS what device the device-in-use it is, and anyway, it is the-app-in-question (seandroid) that has detected anything, not 'the device'. the app-in-question is not mentioned anywhere, there is just a grey triangle, and that crap for information.
2) WHY does the app (seandroid) not mention WHICH app that has <apparently> attempted unpermitted actions ? The app-in-question KNOWS this, or at least have an idea, but it doesn't let you know. With hundreds of apps installed it could be any app, even seandroid
3) WHY does the app-in-question not tell you details on what the actual actions are/were, regarding the <apparently> 'attempting unpermitted actions' ? It KNOWS or has an idea of this, but does not let you know.
4) WHY, or why, is there no settings ? The app (seandroid) claims the <unknown> actions are 'unpermitted'. Well, if so, what permits and unpermits these actions, who decides what ?? With no setting, no knowledge, and no information of what app does what actions, and what is unpermitted about it, what is one to judge hereof ?? Just trust seandroid on, like "Something's not right, somebuddy screwed up something somewhere, and better sleep on it, and start all over" ?
5) Why does it tell you to protect your device ? 'To protect your device' is subtle, as there is hardly any idea of what is the invasive / corrupt application or whatever it is - nor whatever thread it poses to the 'device'. Anyhow the advice for a cure of the disease is just as wicked
6) WHY does it recommend a reboot for 'protection' ? a Re-start of phone, hot or not, would just repeat the cycle, bring up the notification message soon enough, advicing you to reboot again. Eventually if you open whatever app caused the triangle to pop up.
since all software and hardware are manmade, human analogies are often quite in place. the NSA app was naggin me, cos i had rooted phone. Therefore I removed it. Then OTHER apps are naggin me or slowing down much. Now, the texting doesn't work, they aren't getting sent. As intuitive android can ever get, there is this blue waving ring for waiting, like something's actually going on.. but no. it keeps like that forever. Call it broken handshaking or whatever.
If you ask me, that's just proof it's a stupid backdoor program, it has ALL permissions, and since the texting doesnt work without seandroid, it obviously have a say regarding the outgoing text messages.
Thread Cleaned
Please stay on topic.
Aerobotix said:
Oh really, I doubt that, unless you define security for who. Like, NSA make an app for android to help us fight spam ? Think again, what app would N.S.A. make for us ? You can find and remove the app using other apps, like android tuner, android assistant, battery monitor widget, and others.
Whatever you think it is, take a look at SEAndroid's permissions. Then compare that to any super-user app you have/use. SEAndroid has ALL permissions. Still, the app doesnt 'exist' in app store, app lists, and the likes. No choice to install nor uninstall it ?
I removed it, and among several results, the sms messaging is faulty now. So much for security feature.
Even as security feature has two sides <to be seen from>. What do you think ? There's apparently tons of threads on this subject inhere under a spread of various mobiles, but like this one there aren't always much to gain. Frankly, I don't GET the OP's point in posting this thread..seems it starts off with rhetorical question, then the actual post:
'custom ROM is failure' . uhm ok - what ? ... 'there is no consideration to se.android' uhm ok..what ?? i could go on by every sentence following. 'wrong packaging' , 'device cannot use odin' etc etc The OP is just too strange for me. Sure, I don't get all the jargon maybe, not.
and the the link. Can someoone tell me the point of the OP ?
artojeda> I don't even consider it a security feature, and it doesn't prevent spam IMO. Why is it a feature, when is has no settings ? A feature has settings, right ? This SEAndroid has no settings, it is not appearing under apps, and it does not seem to be able to be installed (or uninstalled) through the app market. I hides undercover in the memory/cache and dumping it, makes it re-load again. With a rooted phone, it consistently comes up with a grey triangle notification message saying this
'Detect Information. The device has detected and application attempting unpermitted actions. To protect your device, it is recommended you reboot.'
OK some questions one by one: WHY..
00) WHY is it called security app ? is it a 'NSA Security app' for android or is it a 'security app' from NSA, what's the difference ? DOes it secure NSA or does it secure YOU?
0) WHY does this app(seandroid> not identify itself in the message, or the notification message header ? Pressing the notification does nothing.
1) WHY is this 'app' referring to the device in question as 'device' ? It KNOWS what device the device-in-use it is, and anyway, it is the-app-in-question (seandroid) that has detected anything, not 'the device'. the app-in-question is not mentioned anywhere, there is just a grey triangle, and that crap for information.
2) WHY does the app (seandroid) not mention WHICH app that has <apparently> attempted unpermitted actions ? The app-in-question KNOWS this, or at least have an idea, but it doesn't let you know. With hundreds of apps installed it could be any app, even seandroid
3) WHY does the app-in-question not tell you details on what the actual actions are/were, regarding the <apparently> 'attempting unpermitted actions' ? It KNOWS or has an idea of this, but does not let you know.
4) WHY, or why, is there no settings ? The app (seandroid) claims the <unknown> actions are 'unpermitted'. Well, if so, what permits and unpermits these actions, who decides what ?? With no setting, no knowledge, and no information of what app does what actions, and what is unpermitted about it, what is one to judge hereof ?? Just trust seandroid on, like "Something's not right, somebuddy screwed up something somewhere, and better sleep on it, and start all over" ?
5) Why does it tell you to protect your device ? 'To protect your device' is subtle, as there is hardly any idea of what is the invasive / corrupt application or whatever it is - nor whatever thread it poses to the 'device'. Anyhow the advice for a cure of the disease is just as wicked
6) WHY does it recommend a reboot for 'protection' ? a Re-start of phone, hot or not, would just repeat the cycle, bring up the notification message soon enough, advicing you to reboot again. Eventually if you open whatever app caused the triangle to pop up.
since all software and hardware are manmade, human analogies are often quite in place. the NSA app was naggin me, cos i had rooted phone. Therefore I removed it. Then OTHER apps are naggin me or slowing down much. Now, the texting doesn't work, they aren't getting sent. As intuitive android can ever get, there is this blue waving ring for waiting, like something's actually going on.. but no. it keeps like that forever. Call it broken handshaking or whatever.
If you ask me, that's just proof it's a stupid backdoor program, it has ALL permissions, and since the texting doesnt work without seandroid, it obviously have a say regarding the outgoing text messages.
Click to expand...
Click to collapse
This thread has apparently been seriously cleaned up and I guess much of the discussion here is lost, but I wanted to point out a few things. My apologies if this is completely unrelated to whatever was being discussed here.
SEAndroid is not an app. Its a port of most of the SELinux (also developed mainly by NSA) mechanisms to Android. Keep in mind that SELinux comes by default with Fedora and quite a few other distros and is a very popular security enhancement to Linux based systems. If you are referring to the SEAdmin app that is bundled with SEAndroid (both of which are 100% open source), the app is simply gives you control over which SELinux components and mechanisms along with the MAC enforcement, you want to enforce.
SEAndroid is completely open source, and no one has been able to find any kind of suspicious looking code in there. Of course the modifications and additions that SEAndroid brings with it runs deep. Same with SELinux. This is obviously necessary to provide mandatory access control (MAC) to an operating system which is DAC based.
While my RD title might mislead you - I was an avid HTC user, fan and developer for years - I changed to S8 this year and to my surprise the Do Not Disturb options are Samsung Custom, or lack of them to be precise. So how one can set up multiple rules for DND (says weeknight / weekends / until next alarm ) without the help of 3rd party apps. I know Android stock has these options, HTC 10 (what i've used before s8) as well, Samsung in its mighty wisdom removed them for some reason
And please do not send me to 3rd party apps (most of them needing a License for more than one profiles) Since in Android starting with M it is there IMHO what Samsung did is a downgrade from what stock Android offers in regards to DND rules customization.
I have the international version of the S8 and it does indeed have DND rules under Sound and Vibration.
svetius said:
I have the international version of the S8 and it does indeed have DND rules under Sound and Vibration.
Click to expand...
Click to collapse
international here as well and yes there are rules but you can set only one rule (you select the days you want and start / end time) but I can't find how to set say Sunday - Thursday 23.00 - 7.00 Fri-Sat 23.30 - 9.00. at best i can set for all days same start / end time
Thing I'm finding too on my AT&T S8 is DND doesn't seem to enable after reboots and I need to go in the settings... Toggle something, then when it's scheduled it will enable itself til the next reboot.
Sent from my SM-G950U using Tapatalk
Funny thing, I had multiple rules on my G5. I used smartswitch to transfer my stuff to the S8 and my rules appear to have been copied over. The only problem is that there is no way to change or delete them.
None of the stock Samungs S8's have the option to set more than one profile for DND regetably.?
Sent from my SM-G950U using Tapatalk
Phayesone said:
Funny thing, I had multiple rules on my G5. I used smartswitch to transfer my stuff to the S8 and my rules appear to have been copied over. The only problem is that there is no way to change or delete them.
Click to expand...
Click to collapse
That's Google restore merit. Resorted mine as well but no option to change them anymore
grneyez said:
None of the stock Samungs S8's have the option to set more than one profile for DND regetably.?
Click to expand...
Click to collapse
None of the Samsung it seems. Tested on wife's S6 and is the same.
I know I might seem to be making a big deal over such a small thing but why take something and reduce its functionality just for the sake of making your own customized version is beyond me
Who knows? Just a Sammy thing I guess, just think it could be worse.. could be missing all together.
Sent from my SM-G950U using Tapatalk
My Custom doesn't work.
My life schedule has changed so I didn't notice the scheduling disappearance, but 6 months ago that would have really irked me.
My problem is Custom doesn't work. It's set up exactly as it has always been. The exact same list of favorites. But, it doesn't make a peep. The texts will show up on the screen but they don't beep, and the phone doesn't ring. I have a parent in extraordinary ill-health and this is close to me getting a new phone since I'm still in my 14 days.
Android setting still there, just hidden
There's a YouTube video on this, called "How to add multiple do not disturb rules on S8/S7/S6 Nougat/MM Touchwiz". I would link it, but as a guest, I can't url. You have to download a third party app to access the settings, but I can still use the shortcut to the hidden setting after deleting that app, so other than letting you explore more settings on the phone, the app is not necessary for the Do Not Disturb function to work.
You can download QuickShortcutMaker and search automatic rules
I hope the following info can help somebody:
Samsung released Good Lock 2018, in which it has a submodule named Routines, you may use it to set multiple DND rules, basically a stripped down and less powerful version of Tasker, but it is Samsung official, free and I see in some cases it works better than third party apps.
You should be able to find it in Samsung apps store or you can get it from APK mirror.
Rules removed after reboot
Chaos107 said:
You can download QuickShortcutMaker and search automatic rules
Click to expand...
Click to collapse
I used your trick to create the missing rules in my Galaxy S7 G930L (Samsung's Android version only allows a single rule). Nevertheless the rules are removed anytime I reboot hte phone.
Any idea about how to fix them forever?
I own a rooted phone
ibarco said:
I used your trick to create the missing rules in my Galaxy S7 G930L (Samsung's Android version only allows a single rule). Nevertheless the rules are removed anytime I reboot hte phone.
Any idea about how to fix them forever?
I own a rooted phone
Click to expand...
Click to collapse
How did you manage to do this? I am trying to do this now on the S10+ yet I cannot find any way to add a rule. I get to the screen (I think) but it says no rules added and that is all...
Hello Everyone
This is my first post to this site, so I'd firstly like to extend a hearty "hello" to you all and a big thank you for taking the time to read my post.
As the title suggests, I'm looking for a means to enable GPS remotely, on my Samsung Galaxy S7 Edge using Tasker. I never have GPS on because I rearely (if ever) need it, and it saves battery; but this doesn't help me if I lose my phone, or if its stolen. In order for Google's 'Find my Device' or 'Lookout' to find my phone with any degree of success, GPS needs to be on. But, I won't be able to do this if I don't have my phone.
I'm looking for a means to enable this feature remotely using Tasker. I don't mind what the trigger is i.e. e-mail to my account with a specific subject line, a text from another phone etc. Just so long as I can enable it remotely. I should point out however that my phone is not rooted as yet, however I am happy to do this if it is necessary.
Prior to posting here, I made sure to research into the issue, and a few posts suggested using an app called 'Secure Settings' in conjunction with Taskers 'Run Shell' feature, and the following commands to enable GPS:
Code:
settings put secure location_providers_allowed +gps
settings put secure location_providers_allowed +network
Before using the Secure Settings app, Tasker wouldn't let me do this, stating that the ability to do this had been disabled from an earlier Android version, but after installing it and selecting the option to allow secure access to GPS, it then allowed me to do it. However, that being said, the commands don't do anything, and do not enable GPS on my phone.
I don't suppose anyone here knows how to achieve what I'm looking to do, and could provide some basic step-by-step instructions on how to achieve it? I would certainly be very grateful.
Thanks for taking the time to read my post and I appreciate any and all feedback you may have.
All the best,
Malachor.
Hello,
please excuse me if some of the following statements seem a bit strange or even offensive. But be assured: there's no offense meant! I've been using the P4 for some days now and I there are just a few things I really don't understand and I'd be thankful if someone could explain them to me. Some questions might sound silly, but please forgive me, I am not an expert, neither on Android, nor on the hardware!
1.
To be able to install LOS at all, the bootloader had to be unlocked. What about afterwards: could the BL be closed again, to get rid of that nasty message at startup, warning about data integrity?
2.
I really miss the notification LED from previous phones I used to own. The elders of the universe might know why Google decided not to include a simple and cheap LED in their latest models, but it is beyond me. I know that there's this feature called "always on display", showing the clock, the battery status and notifications about messages and stuff. But that feature surely uses more power than a simple LED. And the information on the screen doesn't seem to move, so I fear that this will damage the screen on the long run. So, my questions about this feature are:
a) Shouldn't the information on this screen at least be moved from time to time to prevent screen damage?
b) Shouldn't there be an option to show this information only when the device is not inside a pocket? Showing these notifications inside a pocket or a bag doesn't make much sense, does it?
3.
There's an option "tap to activate". That is a nice feature, but I'd very much prefer this to be "double tap to activate" (optional), because a double tap is much more unlikely to happen than a simple touch. It is nearly impossible to get the phone out of a car mount or a pocket without accidentally touching the screen, thus activating the phone. One might say that this is not a big deal, but I would say that this unnecessary activation will waste unnecessary battery power.
4.
Google play store forces me to install a lot of apps that are said to be of great importance and that I can neither deselect nor remove from my P4, and that I have never seen on my previous phones running LOS:
- carrier service
- device personalization service
- exchange service
- pixel ambient services
- accessibility tools
- (the app) google
Why am I told I need these apps on my LOS driven phone? Why can't I deselect them?
When I choose LOS to be the operating system on my phone for the first time, I did this because I wanted to avoid Google as much as possible. Most of all, I don't want Google to collect all my data, I don't want them to be able to autofill any credentials or other information, I don't want them to have access to my bank account via Google Pay. Frankly, those ideas scare me! The Play Store is the only GAPP I would like to have on my phone, in order to be able to buy other apps. But, for example: what is "carrier service" needed for? Of course I do have a vage idea about what it is needed for, but why wasn't I forced to install it on my previous phones? Why is it coming as a separate app now? Are the developers not allowed to include it in LOS any longer? Did Google change the rules (again)?
What about the other apps?
I simply don't understand the need for these apps to be forced onto phone that I would like to have de-googled. Is it some dependencies of the MindTheGapps package, that OpenGapps, which I used to install on previous phones, did not have?
If so, would the need for these apps vanish if I reinstalled LOS and use OpenGapps instead of MTG?
Thanks in advance for any hints, help and explaining!
Couldn't find that one listened anywhere here specifically. I'm pretty sure my phones compromised but I'll probably just get people telling me I'm being paranoid. Just notice a lot of weird stuff going on.
I'll give some examples, but it would be cool if someone else here has an A03s and could give me a full list of the system apps to know for sure if mine has some extra ones that aren't truly factory. Because I've restore it several times and they don't go away.
Like under the apps screen under the basic ones I got apps like Android auto, webview, configapk, customization service, and something called data restore tool, device health services, group sharing, meet, nearby device sharing, quick sharing, quick share, settings..etc. which to my knowledge are pretty normal apps to see on phones right? But I seem unable to control them, if I disable them and go back and check later they mysteriously reenabled again, or after that the permissions lists will be greyed out not being able to do anything. Also there is a app called "permissions controller", as well as ones called "apps", "apps update", "tools", "app recommendations", "settings recommendations"..etc. is that normal? I never noticed that with my old samsung. They are really small file size apps with pretty generic looking icons and they don't let me disable them.
What gets more weird to me though is when I enable the system apps too. I see all kinds of suspicious looking ****.
Like for the android setup, and android system apps there are two of each, and the other two have generic looking icons, also got stuff like configuration restore, audio mirroring, auto hotspot, automation test, bluetooth/bluetooth midi service, call & text on other devices, callbgprovider, camera extensions proxy, carrier login engine, sim tool kit, cell broadcast services, clipboardsaveservice, cmh provider, companion device manager (where I have no idea where my "companion is or how to control it so I must be the one being controlled?", configupdater, csc, dcktimesyncapplication, dynamic system updates, ipservice, enterprise sim pin service, external storage, like 10 different gestural navigation bars, group sharing, iaft, ims service, settings, and logging, input devices, iothiddenmenu, keycustomizationinfobnr, launcher, locale overlay manager, service mode and service mode ril, media and devices, mdmapp, vpndialogs, mmigroup,mmsservice, mobilewips, mtp host, nearby device scanning (2 instances), network diagnostic, nsdswebapp, one handed mode, osulogin, package installer, an app called "people", private share, proxy handler, quick share agent, samsung core services? (is that a real app even? I can disable it but who wants to disable "core" system apps, so touche there if it is a program deployed by a hacker on their app naming skills lol, smart switch agent, 2 instances of software update, system connectivity resources, system uwb/wifi resources, an app called "tasks", tethering, tethering provision and tethering automation, tfstatus/tffunlock always running when I never access them, usbsettings, and theres one called wallpaper services/wallpaper and style that looks really generic which is confusing because I assumed the samsung theme manager just handled all that stuff in one? We also got wearable manager installer running, and sometimes wificalling and wifi direct or work setup will be running when I don't have any of those configured.
Sorry for the huge block of text, I'm sure I missed a bunch i missed because there's some that don't show even when you tap "show system apps", like the skms agent as one example, so got a few general questions for you, so for the file/download system I got a bunch of default apps. There's two different files apps, there's a download manager and download app, and also a storage manager, and ALSO a app called the external storage that always wants to be running but can you explain that if I have no external storage? Is the built in storage space on the a03 called external storage? I even have my drive apps and stuff disabled.
Another things that's suspicious to me is secmediastorage, secvideoengineservice, secsoundpicker, secureelementapplication, media and devices + ext storage. Like why should there be a SECOND video or audio engine running when I'm old school and don't even use cast programs/features or anything like that? In fact it's usually one of the first things I just go ahead and try disable.
I noticed a lot of weird things going on with the display though too, looking really sharp then suddenly almost looking like there's two layers of gui not exactly lined up, like off by a pixels making things look blurrier. Like the one ui home is the default factory launcher right? So why does my phone also have a app called "launcher", plus another hidden launcher or something running in the background? I can't remember the name of it offhand, something GUI..
And I understand the concept of android have a permission controller, and "core apps" but are there actually apps under the system apps named that lol? "permission controller", "samsung core apps" one called "device services"...
also is service mode suppose to be running in the background? I googled into it and know it's a genuine service, but I really don't understand why a lot of these apps are stopping and running or renabling themselves.. It's like I have zero control over my own phone and if I'm just paranoid and they are meant to be just seems like a waste of complete waste of ram/data to me.
****, I was just sitting here thinking for like a few minutes about to post and almost forgot the most suspicious ones I've noticed in last few days. all the "com." overlay apps. I guess I really saw the word "overlay" as something you should be suspicious about until the vpn I recently bought had a feature that is suppose to block web browser based overlays. Then I noticed that MOST of my com. apps are all overlay apps! Lol, ranging from google/samsung to mediatek.
I won't post all of them because there's probably 20 at least but here's a few.
com.mediatek.frameworkresoverlay
com.mediatek.settingsproviderresoverlay
com.mediatek.systemuiresoverlay
com.samsung.android.networkstaack.tethering.overlay
com.samsung.android.smartswitchassistant
com.samsung.android.wifi.p2paware.resources
com.sec.android.app.camerasaver and a camera.app.cameraapp one (camera always running in background even if background and battery saver with restricted settings enabled)
com.google.android.ondevicepersonalization.services (I never used any personalization service or see a personalization app for that matter)
com.google.android.networkstack.tethering.overlay
and there's a bunch of com.google.android.overlay.gmsconfig ones /common geotz/ gsa/ photos/
com.google.android.overlay.modules.captiveportallogin.forframework
plus a overlay broadcastreceiver, ext.services, documentsui, permissioncontroller, and sdksandbox one.. tetheringresoverlay, wcmurlsnetworkstackoverlay, locale overlay manager..etc.
Also I get my service through straight talk which I think uses verizon and I noticed when I go to connections/mobile networks and network operators and uncheck the box "select automatically" that for some reason it only wants to connect to a network operator called "Home". I just thought that was kind of a weird and generic name for a network operator. I tried to use a android hidden settings app to change that because it was blocked out and thought I messed up my phone because I no longer had data and couldn't access the menu through the app anymore, but luckily a reformat fixed it but I'm still dealing with all this crap haha.
Can someone tell me I'm not crazy and there's definitely someone that is accessing and controlling my phone without my permission and what would be the best way to go about dealing with this?
Thanks.
First things fist: Here on XDA we expect you to follow the Forum Rules:
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You've copied this post at least once. We'll be removing the duplicate.
Now on to your question...
It is my opinion that the problem may not be with what you are observing, but with your assumptions. In the duplicate thread, you assume two possibilities:
You're being hacked
Your paranoia is justified
Have you thought there may be a third or even fourth option? Such as, maybe you don't understand that much about Android, you don't recognize what you see, you're assuming it's malicious, which combined with your own confirmation bias, has led you to the conclusion that foul play is afoot?
Nothing you have described sounds in any way abnormal. You have a Samsung device running OneUI (Samsung's framework overlaid on top of Android) that is powered by a Mediatek chipset. Everything you describe sounds completely normal to me, with over 10 years of experience in Android, most of that with Samsung devices.
My conclusion, to be frank: You are not being hacked, and your paranoia is unfounded.
OP your post gave me a headache trying to read it.
So...
Have it reflash to the stock firmware if you really think it's behaving erratically and a factory reset doesn't work. Change Google password and all others.
Then be careful what you install.
Don't put in foreign thumb drives or let others use it.