How to prevent the phone from connecting internet? - BQ Aquaris X Pro Guides, News, & Discussion

I have a BQ Aquaris X2 phone, already unlocked bootloader and rooted. I gave it to my parents but they keeps watching inapprociate videos and news. So I need to prevent the phone from connecting internet , even after factory reset (they can play games, watch videos offline, no need calling or messaging). I have thought some solutions:
- Find out which system application that helps the phone communicating with cellular network and wifi, then uninstall it: I've searched but can't find any name, I think NetworkStack.apk is the one, but when I freeze it (using Link2SD), my phone reboot and NetworkStack is not frozen. Another app named Carrier Services is not the one.
- Turn on air plane mode forever: using application to turn on air plane mode can be easily turned off by the user. I need to block it from turning on by someway that I don't know.
- Just lock the internet connection, lock chplay, lock installing apps by apks, lock settings app,... and then prevent user from factory reset in fastboot (maybe no need because my parents is not developers, but is it possible?)
Please help me, thank you for reading!

Related

[Q] Bypassing screen lock without an internet connection

Hi everyone
Here's the situation. My Mum passed away in December very suddenly. Her Desire Z is really causing us trouble. She had a screen lock pattern set, which we haven't been able to guess.
We have reset her Google passwords (since we didn't know the old ones) but the device has WiFi turned off, and mobile data turned off, so when we try to login to one of her Google accounts to reset the screen lock it says "invalid username and password". For these reason I also can't send an unlock reset from Google device manager. I've obviously tried connecting it via a USB cable just to copy photos or any other files but it won't even do that while it's locked. It just doesn't seem to recognise that a USB cable is connected, unless it's plugged into a charger.
I've googled it at length and tried all sorts of tricks like calling the phone and clicking certain buttons, opening the keyboard at exactly the right moment, and so on. Unfortunately nothing has worked.
I know how to hard reset the device, but is there any way at all to get access to it before I do so?
Thanks so much for any help you can offer.

S4 Mini behaves strangely

I apologize for my English, I'm Brazilian, and they told me to go to XDA to solve my problem.
In this case, I'm using Google Translate.
Hello, I have an S4 Mini, which is behaving in a very strange way and I already tried to make the two solutions that I found, that would be to put the Stock Rom, and the Hard Reset but that did not solve.
The symptoms I have noticed in him so far are:
1 - Battery behaves strangely (Sometimes I turn on and off the battery comes back with another charge). And it gets very fast when I'm using it. But the battery is new.
Android takes actions alone, for example, it is 0% I connect it, it unlocks the screen alone, and opens the native browser the "Internet", and goes to a page that is like a map, and starts to Write random things, like, McFWjham; KAMV.
3- The use of data has remained high when it is active.
4- Sometimes when it is working normally, it opens native programs for no reason, the most common is the "Internet".
So I do not know what else to do, the cell phone is very well preserved, no visible problems, no crumple of drops, the problem is just in time to use kkk. Help me pls.
#Edit :The screen when active uses 40% to 50% of the battery according to Android.
The "Android System" occasionally gets to spend 60% of the battery.
When the battery is locked it tends to remain, but when I use the smartphone, the battery tends to decrease with the second ones very fast.
The battery is new.
Please help me T.T
Luan532 said:
I apologize for my English, I'm Brazilian, and they told me to go to XDA to solve my problem.
In this case, I'm using Google Translate.
Hello, I have an S4 Mini, which is behaving in a very strange way and I already tried to make the two solutions that I found, that would be to put the Stock Rom, and the Hard Reset but that did not solve.
The symptoms I have noticed in him so far are:
1 - Battery behaves strangely (Sometimes I turn on and off the battery comes back with another charge). And it gets very fast when I'm using it. But the battery is new.
Android takes actions alone, for example, it is 0% I connect it, it unlocks the screen alone, and opens the native browser the "Internet", and goes to a page that is like a map, and starts to Write random things, like, McFWjham; KAMV.
3- The use of data has remained high when it is active.
4- Sometimes when it is working normally, it opens native programs for no reason, the most common is the "Internet".
So I do not know what else to do, the cell phone is very well preserved, no visible problems, no crumple of drops, the problem is just in time to use kkk. Help me pls.
#Edit :The screen when active uses 40% to 50% of the battery according to Android.
The "Android System" occasionally gets to spend 60% of the battery.
When the battery is locked it tends to remain, but when I use the smartphone, the battery tends to decrease with the second ones very fast.
The battery is new.
Please help me T.T
Click to expand...
Click to collapse
Sounds like you have a malware infection (though can't be 100% sure) maybe adware, I would guess. Factory reset should have fixed it and reinstall stock rom would definitely fix it even if malware rooted your phone. So that means there is an easy way for reinfect to happen.
Reinfection can happen many ways eg via bad app, through your google account, cloud storage, wifi, other network you have joined etc. Unfortunately it can be very hard to stop if you don't know how it's happening.
1st lets assume it's a bad app you installed, try run a good antivirus like Avast, does it show malware? Clean anything it finds. If you are lucky it will only be adware app that you reinstalled yourself after the new rom, once removed you will be OK and phone clean. But if it comes back by itself then it will take more work to find how it happens.
[Note: You can also boot phone into safe mode which will only allow system apps to run, it is a way to test if it is a bad 3rd party app, is the problem stopped now 3rd party apps can't run?. (though if your phone has been rooted by malware and bad app installed as system app, then bad app will still run). If you think it might have been rooted, download a root checker app to test]
Change the software.
IronRoo said:
Sounds like you have a malware infection (though can't be 100% sure) maybe adware, I would guess. Factory reset should have fixed it and reinstall stock rom would definitely fix it even if malware rooted your phone. So that means there is an easy way for reinfect to happen.
Reinfection can happen many ways eg via bad app, through your google account, cloud storage, wifi, other network you have joined etc. Unfortunately it can be very hard to stop if you don't know how it's happening.
1st lets assume it's a bad app you installed, try run a good antivirus like Avast, does it show malware? Clean anything it finds. If you are lucky it will only be adware app that you reinstalled yourself after the new rom, once removed you will be OK and phone clean. But if it comes back by itself then it will take more work to find how it happens.
[Note: You can also boot phone into safe mode which will only allow system apps to run, it is a way to test if it is a bad 3rd party app, is the problem stopped now 3rd party apps can't run?. (though if your phone has been rooted by malware and bad app installed as system app, then bad app will still run). If you think it might have been rooted, download a root checker app to test]
Click to expand...
Click to collapse
I have avast installed, and cleaned, but not changed at all.
My device was already rooted by me, when I gave the hard reset and soon after the exchange of the rom stock, the root was undone,
I installed Root Checker and it said root was not properly installed.
And as for the security mode, I turned the phone on in safe mode, and when the screen was unlocked, it automatically opened the "internet" browser, on the same page as always.
What should I do?
Luan532 said:
I have avast installed, and cleaned, but not changed at all.
My device was already rooted by me, when I gave the hard reset and soon after the exchange of the rom stock, the root was undone,
I installed Root Checker and it said root was not properly installed.
And as for the security mode, I turned the phone on in safe mode, and when the screen was unlocked, it automatically opened the "internet" browser, on the same page as always.
What should I do?
Click to expand...
Click to collapse
ummm .... I was expecting it was just going to be a bad app serving ads, this is going to be hard
OK, that should rule out 3rd party apps (assuming you have avast set to find all PUP/PUA, etc & nothing white listed) but not finding anything may mean malware is embeded in ROM or malware was able to open port on your system but then uninstall itself or just that there is a line of code that points browser to a server that is serving adware so antivirus is not finding it. Some malware is able to hide from anti virus software in different ways. Try this app, it is not true antivirus, you run it manually, don't worry if one or two antivirus companies like white armour identify malware, they do often even on clean phone.
https://play.google.com/store/apps/details?id=com.funnycat.virustotal
You can also submit any unknown app to virus total white this app for testing. Also you must submit the bad url your browser is connecting to for testing, this will help it spread to all anti virus database.
Good news is you do not appear to be rooted. But the ROM you flashed may still be bad. Where did you get the stock ROM you flashed? I would only use a trusted source like sammobile.com/ but even that is no guarantee. You could try flash another ROM, though as this happened on previous ROM it's probably a good ROM, unless you are getting all your ROM from same site that is not well known as trusted.
So that would suggest they are able to get easy access to your phone either via your google account, cloud service, local network at home/work/public, or through your modem/router.
Check your local network doesn't have a neighbour or other unknown device connected with this app Fing
https://play.google.com/store/apps/details?id=com.overlook.android.fing
Of course even if you recognise all devices that doesn't mean your brothers etc phone is not the source.
Do the same with other networks you have access to.. Talk to work, any one else infected? Change you password. If using public wifi always use a vpn.
Likely source is your modem/router, Log into your modem router check for updates for it, (if old and not supported you may need a new one), update or if latest firmware do a factory reset, now reboot and use a new password (do this at the same time you reset ALL your passwords, or you might just allow them to find new passwords and reinfect you)
Check your goggle account does not have someone else set for account recovery and/or two factor authentication. (set it up if not already on) Change password and ALSO change password on any other recovery account (write them down )
do the same for cloud storage, and scan storage for virus if possible eg dropbox local folder on pc. Unlink cloud storage from mobile until you are clean to block this route of reinfection.
Update any other device software & change passwords eg xbox, printers etc
I think there's something I'm forgetting
Now reflash stock ROM ( I would also suggest then flashing an up to date custom ROM with most recent security patches)
Things you can do that may help temporarily .....
Install a firewall app like netguard and block internet access to browser, through may not work as root etc is open by default. Oh yes, that reminds me of one thing I forgot, check your DNS has not been hijacked, netguard shows dns url in settings, change if you cannot find who dns server your phone is using, use google 8.8.8.8 & 8.8.4.4 if you don't know what to set.
Use an app like Link2SD, Titanium Pro to freeze apps, but you will need root for this.
It's a lot of work (& I think there is something I am forgetting), you may get away with just factory resetting your modem or something as it appears to just be adware so they probably don't have access to your accounts etc, but I tried to cover everything.
Hope I'm making sense through goggle translate!
Phone with mind of its own may not be hacked or haunted. It can in fact happen when it's exposed to moisture or water. Try putting the phone in a bag of rice for several hours, this will draw out all moisture. Hairdrayer may damage electronics because overheating.
If hacked, I would do following steps:
- modem update with odin (manuals search XDA)
- update latest TWRP (dito on XDA)
- start phone in Recovery mode and wipe everything, also Format Data on SD and external SD. Simple Factory reset my not delete it (use Advaced wipe)
- Install LOS14.1 from arco (check compatibility first, other version available for double SIM) It comes with latest security patches.
- Install Open GApps nano or pico. Install other Gapps later if you need.
- start phone, skip setting for WLan to see if everything works without Network.
Does it work? ...then an open WLan could be hacked, try a secure first or mobile network.
Good luck
Hello guys!
The battery drop problem is a common failure with this i9195 phone. I did a research but you have to help me as well by providing IMEI S/N (located under the battery) in PM to me!
New battery doesn't helps!
My current research: If your phone made in Vietnam in the 1-line ~2013, then you will have a dead motherboard soon, before that battery issue is occuring.
So please give me your details and I will look after it.
Do anyone know when they stopped producing i9195 and i9195i ? I need to buy the latest version, because my i9195 was made in 2013 and have that battery drain issue even with new batteries...
Thanks.

Play Store completely broken while using mobile data only

The android play store is completely broken for me. It's been doing this for the last two weeks. Never had an issue before. I rarely post on XDA anymore because I never have problems with my phone and I'm tech savvy enough to troubleshoot my own stuff but I need help with this. The play store will only download apps and updates via wifi. After troubleshooting the app sometimes I can get it to work but most of the time it will be stuck at 99%, 49%, 36% downloaded or will just say "waiting for download" . I want to be able to use it without having to use wifi. I'm pretty sure it's a bug.
My play store settings:
App download preference: Over any network
Auto update apps: Dont auto update
Troubleshooting steps I took
1. Force close, clear cache
2. Force close, clear data
3. The above + restarting
4. Clear cache of play services and restart
5. Clear cache of download manager and restart
6. Full factory reset of my phone
7. Restarting mobile data, turning off/on wifi/Bluetooth
After the full restart I started to believe that an update somewhere broke the play store. I'm fully stock non rooted on Verizon. Every other app works just fine if it needs to use mobile data. I'm really frustrated and would like some assistance with this.
What email account is your playstore showing it is using? Is it a fully legitimate Gmail account? Or is it an email account that is a student account? Maybe business related?
And have you disabled any apps?
Possible fix...
I've been having the same issue on my rooted S8 since about a week after I bought it two years ago. I could never download new apps or do updates over the air. Now, I just in the last week bought a Note 10+ 5G and set it up with the second of the two Gmail accounts I have. I'm still using the same SIM card I've had for over a year. The Gmail account having issues with OTA updates is over 25 years old now, the newer one's about five years old. Now, as much as I'd like it to be the Note's not rooted, and if I'm logged into the newer Google account it's quite happily grabbing Play Store app. updates over the air.
You beauty!, you say. "Fixed it you have", would say Master Yoda.
Um, no.
If I switch back to the older Google account I instantly lose the ability to download anything over the air. Grabbing stuff while the device is connected to the internet via a wi-fi hotspot works like a charm, but I've tried every solution offered to me by Google technicians and Android experts alike and STILL can't get it download and install an app. when I'm anywhere other than hooked up to my home router. Go figure!
So yeh, just letting you know you're not the only one.
EDIT: Just had a play around (pardon the pun) with -> Settings -> Google Settings -> Google Account
Try this out and see how you go.
1. After you land in Google Settings, make sure the Google account you're having OTA dramas with is showing.
2. Tap on 'Data and Messaging'.
3. Tap on 'Data Management'.
4. Tap on 'Update Drive-enabled app. files'.
5. Tap on 'Over Wi-Fi or mobile data'
Back-arrow your way out, check that your handset is NOT connected to the internet via wi-fi, then go to Play Store, check for updates and they should download without issues over your mobile service provider's network connection. Please note that your mobile data allowance will be used, but you should also be able to wander the streets and grab new apps without needing to connect to a wi-fi hotspot.
Yippee! Oh, and don't applaud...
just throw money.

How to disable Data OFF when connecting to WIFI requiring log-in?

My phone is all stock and will stay this way so please do not suggest rooting or alternate ROMs, I have another phone for that to play with.
After I upgraded to Android 10, there is one thing that tremendously pissing me off, and it is when my phone automatically connects to a wifi network requiring log-in and turns mobile data off, essentially throwing me into off-line mode. How retarded this is?! Previously (before the upgrade) it would keep the data ON until I logged into the network, and if I didn't stay at a place long enough (like a cafe) I didn't care about loging in at all and just staying with my phone data.
I looked through all the settings and couldn't find this option I need. Is it there and I'm not looking in the right place, or do others have similar issue?

Need help with locking apps

With Covid, we've been forced to hand this device to my 8y/o brother during classes, which is not a good thing since he plays games and watches videos in the background during his classes.
We've tried the app-lock available in the phone but he bypasses any and all locks using Focus Mode (which I haven't found a way to permanently disable yet). Any other app-lock apps seem to not work at all on this device (while they work fine on other devices, even after giving device admin and allowing drawing over other apps).
The few apps that worked, he uninstalls them easily. I WISH I could remove YouTube and the other apps from this device, but we don't have my laptop with me for that. Additionally, the App Vault and other homescreen-related options being easily accessible in the settings panel on Home (and not locked by the default AppLock even when Settings is locked) does NOT help at all.
Any ideas? Please, I'm desperate at this point.
PS. The device is Redmi Note 8
Myst Fende said:
With Covid, we've been forced to hand this device to my 8y/o brother during classes, which is not a good thing since he plays games and watches videos in the background during his classes.
We've tried the app-lock available in the phone but he bypasses any and all locks using Focus Mode (which I haven't found a way to permanently disable yet). Any other app-lock apps seem to not work at all on this device (while they work fine on other devices, even after giving device admin and allowing drawing over other apps).
The few apps that worked, he uninstalls them easily. I WISH I could remove YouTube and the other apps from this device, but we don't have my laptop with me for that. Additionally, the App Vault and other homescreen-related options being easily accessible in the settings panel on Home (and not locked by the default AppLock even when Settings is locked) does NOT help at all.
Any ideas? Please, I'm desperate at this point.
PS. The device is Redmi Note 8
Click to expand...
Click to collapse
i just tested the default AppLocker on RRos
settings/security/applocker
and it work fine
no way to baypass it unless you flash the remove password zip

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