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19 votes
Accepted

Any security difference between root based firewall (AFWall+) and non-root based ones (NetGuard)?

As the author of NetGuard I have first hand experience in this field. A disadvantage of a firewall based on a local VPN is that not all traffic types can be handled, because the (Android) Linux ...
M66B's user avatar
  • 356
10 votes

Any security difference between root based firewall (AFWall+) and non-root based ones (NetGuard)?

To my knowledge, it's the approach: Root based firewalls use IPFilter / iptables to control the flow. This automatically applies to all apps, whether there's a network connection available at all or ...
Izzy's user avatar
  • 91.2k
9 votes
Accepted

How to make android prefer mobile data when wifi signal is very weak

From Android 5 onwards, there's a setting in the Developer options called Aggressive WiFi to mobile handover. Enabling this setting makes your phone switch to mobile connection when the WiFi signal ...
Mika Hämäläinen's user avatar
5 votes

Is it possible to designate a Wi-FI SSID as metered "mobile network"?

This option actually exists and I have just tested it on Android 10 (AOSP). The trick is to set a custom DHCP option 43 with the text value "ANDROID_METERED". What I find a bit confusion is that ...
ypid's user avatar
  • 153
4 votes
Accepted

Why do restricted apps still use data?

Amazon is using data in two cases: Foreground : App is active (foremost on screen), screen is on and user interacting with it. You would have probably done that in response to a notification or ad ...
beeshyams's user avatar
  • 41.1k
3 votes
Accepted

Make a phone call in one SIM and simultaneously browse with the other

GSM Arena says your phone has SIMs in DSDS mode To achieve what you want you need a phone with SIMs in DSDA mode See What is the difference between dual sim active and dual sim stand-by? So, sorry, ...
beeshyams's user avatar
  • 41.1k
3 votes
Accepted

Does Android auto-switch between SIMs for data on dual-SIM phones when one of the SIMs has poor reception?

If you're using the internet on the phone, does Android auto-switch between SIMs on dual-SIM phones when one of the SIMs has poor reception? No. Android doesn't offer such provisions. Pixel 3a line ...
beeshyams's user avatar
  • 41.1k
3 votes

Is it possible to designate a Wi-FI SSID as metered "mobile network"?

I don't think WiFi can be designated as a Mobile Network, but stock Android provides option to set WiFi network as metered. When connected to the WiFi, go to that WiFi connection settings and you will ...
Irfan Latif's user avatar
  • 20.6k
2 votes
Accepted

Is disabling all the wireless connections the same as enabling "airplane mode"?

I didn't dig into the source code for authenticity so consider this as an educated guess. I noted that when turning on Airplane mode only the radios mentioned in the key airplane_mode_radios1 are ...
Firelord's user avatar
  • 25.1k
2 votes

Any security difference between root based firewall (AFWall+) and non-root based ones (NetGuard)?

Aside from the general consensus that actual security is out the window for rooted devices and of course depends on the user, AFWall+ offers a kernel level approach to filtering traffic while NetGuard ...
cbar.tx's user avatar
  • 21
2 votes

Is it possible to force an app to use cellular data instead of WiFi?

NetGuard and AdGuard will both allow you to accomplish your stated goal. Both apps allow you to specify whether each installed app on your Android device can use WiFi, cellular data, or both (try ...
End Antisemitic Hate's user avatar
2 votes

Is it possible to force an app to use cellular data instead of WiFi?

Yes you can do this. On my phone you go into Connection Settings and in Data Usage you can choose which app to make a "Mobile Data Only" app.
Kyle Sherman's user avatar
2 votes
Accepted

Google Photos will not backup

I was able to finally get Google Photos to back everything up. It's not a perfect solution, but it does seem to work for now. Uninstall / Reinstall. I just completely uninstalled the app, then ...
Sturm's user avatar
  • 163
2 votes

Internet always on when VoLTE enabled in Redmi 3s Prime

Voice over LTE (VoLTE) uses mobile data (LTE). You can't turn off mobile data and use VoLTE. You can turn off mobile data and use a different voice connection like 3G.
mattm's user avatar
  • 4,231
1 vote
Accepted

After dead-zones carrier is dropped until restart

Solved it myself after tinkering with it for the last day. While not recommended, it is possible to flash the Galaxy with other carrier's "version" of the android OS. So the old stock Sprint operating ...
Ambrose K's user avatar
1 vote

How can I turn off data when my phone's screen is off and only let data come back on once per hour or so to sync apps?

Android 6.0 (Marshmallow) introduced new OS features called Doze and App Standby to improve battery life. Doze defers data usage to short windows while the Android device is stationary. App Standby ...
mattm's user avatar
  • 4,231
1 vote

Is it possible for any app to connect to Internet over cellular when the data connection button is off?

After complaining to the phone company, it turns out that the issue is (believe it or not) 4G related. They refunded my unfairly charged amount, and switched me to a different data plan that excludes ...
tonypdmtr's user avatar
  • 111
1 vote
Accepted

Can only connect 'halfway' over mobile hotspot

This may be an issue with your carrier's APN (DUN and IPv4 protocols). As a workaround, try changing the APN type to DUN: On your phone, go to Settings >> More >> Cellular networks >&...
xavier_fakerat's user avatar
1 vote

Enable VPN on airplane mode, before connecting

Ok looks like with privateinternetaccess VPN you can do it. You have to enter details given by the vpn provider into the smartphone settings so the app is not required: Android-How to use " Allways-...
Smeterlink's user avatar
1 vote
Accepted

Smartphone to smartphone to sim communication

In this case the Android versions, or devices themselves, are largely are not relevant to the answer. The second phone cannot use the first phone's mobile data directly, it must use it via tethering. ...
acejavelin's user avatar
  • 6,197
1 vote

What is an easy method to test whether UDP traffic is blocked?

You can check if UDP traffic is blocked with this app: https://play.google.com/store/apps/details?id=be.ac.ulg.mobiletracebox It's free and it works on not rooted devices. Just select UDP category ...
the structure's user avatar
1 vote

Preventing mobile data use for select apps on non-rooted phone?

In Xiaomi phones it is possible to restrict background data in Security app from Mi. You can also restrict background data for every app also! I have used it many times when my left data is very ...
Creepy Creature's user avatar
1 vote

Preventing mobile data use for select apps on non-rooted phone?

A firewall application is suitable for this task. There are other firewall options for non-root users: NetGuard firewall (no root ) Features: No root required Android 4.0 and later supported IPv4/...
xavier_fakerat's user avatar
1 vote

Can I use 2 android phones as walkie talkie? (without internet!)

I just started using the WiFi Walkie Talkie app. It doesn't have much in the way of flash, but it works extremely simply. As a bonus, it is open-source and ad-free.
palswim's user avatar
  • 303
1 vote

How do I enable Mobile Data only for select apps on a rooted phone?

There is also NetGuard, which unlike AFWall+, doesn't require root. Google Play: https://play.google.com/store/apps/details?id=eu.faircode.netguard Website: https://netguard.me/ Source code: https://...
makeworld's user avatar
  • 111

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