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7 votes
Accepted

Stop auto-selecting cellular network

Problem was that the settings made in the device by manual selection wouldn't stick Solution Dial *#*#4636#*#* and in Phone Info section → preferred network type choose the network type you would like ...
beeshyams's user avatar
  • 40.8k
5 votes
Accepted

Is there a way to determine what mobile network frequency band is in use?

The LTE Discovery app can give you this information. Incidentally, your specific situation is likely a result of the 5X supporting band 12, and the Z3 lacking it. This tends to be relevant in ...
eldarerathis's user avatar
  • 36.8k
5 votes
Accepted

Network Support Explained

Is a phone that supports the most network bands ideal if you are trying to get the best cellphone service? It simply depends on the match between your phone modem (radio) capabilities and the band ...
beeshyams's user avatar
  • 40.8k
4 votes

Stop auto-selecting cellular network

There is a setting to "fix" your device to a given network: Settings › More … › Mobile networks › Network operators: By default, this is set to "automatic". But there's an option to "manually select"...
Izzy's user avatar
  • 91.2k
4 votes

Why proxy set on Android does not work when used as hotspot?

Your question is related to understanding of OSI model. Proxies use http/https or socks protocol, I assume you are talking about http which is an Application Layer (L7) protocol in OSI model. When an ...
Irfan Latif's user avatar
  • 20.4k
3 votes
Accepted

Translation of RIL_PreferredNetworkType terminology to human speak?

I figured them out thanks to here and here. GSM is 2G (on GSM networks) WCDMA is 3G (HSPA) CDMA is 2G (on CDMA networks) EvDo is 3G (on CDMA networks) TD-SCDMA is 3G (UMTS) LTE is 4G (LTE) This PDF (...
user541686's user avatar
3 votes
Accepted

Samsung devices: dual networking

Similar questions have been asked here: Can an android phone connect to both Wi-Fi and mobile data network at the same time? How to enable dual networking in Android shell? and How do I connect to a ...
xavier_fakerat's user avatar
3 votes
Accepted

Cannot log in to google account when on data (works on Wifi)

Do you have background data restricted? Usually I can't login to my Google account with background data restricted. Try with removing background restriction.
Divya mani Adhikari's user avatar
3 votes

Dual active LTE + multipath tcp + VPN

Android's multipath TCP networking layer is only able to use WiFi and Cellular concurrently and can't use multiple of the same connections at once (as far as I know). However. You can use a mobile ...
Selene Blok's user avatar
3 votes
Accepted

International roaming, forbidden networks, hidden sim toolkit on one plus 5T

I also faced the same problem with OnePlus5 mobile and with Vodafone IN. The local networks in Germany were showing as forbidden. The debug is to go to Sim Tool Kit -> International Roaming -> Select ...
user304427's user avatar
3 votes

Enable usage of mobile data while connected to a WiFi without internet connection

I've just recently come across this question, as I have been struggling with the same problem. I have a potential solution which I've found which might help others. These instructions are for a ...
INsanE Alchemist's user avatar
3 votes

How to disconnect SIM from network on schedule

Here's a community favorite: Tasker! It is very straightforward to set up a profile to exist that is triggered based on a day of the week and time, as you specified. Disabling the SIM appears to be ...
jlehenbauer's user avatar
3 votes

Firefox cannot access internet with mobile data (but does with Wi-Fi). Chrome works with both

I feel really stupid, but it seems for some reason my mobile data AP was configured with a proxy (I did not do that, so this must somehow have happened automatically). Since I removed the proxy, ...
user52366's user avatar
  • 151
2 votes

Can cellular network providers detect the phone model/make when their sim is activated?

Short answer is Yes, they can. Here is how: Network provider also accesses your phone's International Mobile Equipment Identity (IMEI), which is a number that's unique to every GSM handset (CDMA ...
Ramast's user avatar
  • 206
2 votes

Dual active LTE + multipath tcp + VPN

I would suggest the best solution is speedify for the original poster as this service enables multiple internet connections, including LTE/4G, 3G, Wifi etc to be combined. The original question ...
therobyouknow's user avatar
2 votes

Dual active LTE + multipath tcp + VPN

Google's Project Fi is a carrier tailor-made for traveling so you don't need an additional hotspot. It's basically what you're describing above. Fi is less expensive than almost any other US carrier ...
owlswipe's user avatar
  • 1,068
2 votes

Suddenly my phone does not detect my SIM while it detects service providers' names

The SIM card isn't actually what allows your phone to connect to a network, but it has your subscriber details (i.e. the information that links the phone with your account with the phone company). If ...
Dan Hulme's user avatar
  • 35k
2 votes
Accepted

Does switching my phone from 3G to LTE only matter if I use mobile data?

If you keep your mobile data off, it rather depends on coverage: Good 2G coverage? Use that. Your battery will last much longer. Shaky 2G but stable 3G? Use 3G. Same reason: shaky coverage makes the ...
Izzy's user avatar
  • 91.2k
2 votes

Is it possible to use same modem firmware on different phones?

No, you can't flash firmware designed to work with one android device to another one. There are some bizzare situations where this does work because devices have identical hardware (Coolpad F1 and ...
jan's user avatar
  • 395
2 votes
Accepted

How do I tell whether my phone is roaming?

OP's intention of asking was to know how to identify the mobile is in roaming It is indicated by R (indicating Roaming) , next to the signal strength icon, which was indeed the case
beeshyams's user avatar
  • 40.8k
2 votes
Accepted

4G network compatibility in France

The only duplex modes of LTE are TDD and FDD (see band list on Wikipedia) - in other words, non-TD-LTE bands are FDD-LTE. Generally Europe uses band 20 extensively, but you are still advised to ...
Andy Yan's user avatar
  • 9,539
2 votes

How to define a preferred Mobile Network?

TL;DR: you cannot do that, at least not without root. The reason for this is, due to security concerns, there are no public APIs to do that software-wise. The preferred network list is defined by the ...
D.Barev's user avatar
  • 96
2 votes

International roaming, forbidden networks, hidden sim toolkit on one plus 5T

I had same problem with Airtel but in another country. But same SIM worked in same phone in some other countries. When I used to land in one particular country it won't latch to any network. I was ...
Anil's user avatar
  • 21
2 votes

How to check what is wrong with my mobile connection?

Tracing networking problems in mobile networks is pretty complicated. Therefore from your perspective there is only one way to find out if it is your phone or not: Use a different phone (different ...
Robert's user avatar
  • 20.3k
2 votes

Proxy server connection

Most likely the used proxy server is an HTTP proxy server (also called Web Proxy server). This means effectively that you can only make HTTP connections (which is a TCP based protocol). Online games ...
Robert's user avatar
  • 20.3k
2 votes

APN Settings: What Does Each Setting Do?

Found this as part of a search that lead me here: Name (APN) A user-chosen name to apply to this APN configuration. This name has no effect at all on the connection, and is only used as a label. APN ...
ruuk's user avatar
  • 21
2 votes

Latency spikes regularly spaced on a OnePlus5 phone, reproducible on both ATT & TMobile

Root cause identified: Having two sims in the phone causes the problem. When I removed the 2nd sim, no reboot even needed, the problem disappeared. Wow OnePlus, wow.
davidparks21's user avatar
2 votes
Accepted

Japanese SIM card not connecting to network in US

I had to go into Settings > Connections > Mobile networks > Network operators and manually select a network.
PleaseAndThanks's user avatar
2 votes

Samsung Galaxy A22 5G never shows 5G

Based on the information you provided so far, it looks like your 5G phone (800MHz, 900MHz, 2.1GHz, 2.3GHZ, 2.5GHz, 2.6GHz) is incompatible with your network provider's 5G (700MHz, 2.6GHz, 3.5GHz). In ...
ripopenid's user avatar
2 votes
Accepted

How do I hide the network name from the notification bar on Fairphone?

On Fairphone 4 (Android 12), the network name can be hidden in Settings | Display | Other display controls. You can toggle the setting Network name to control the visibility of the network name in the ...
Demurgos's user avatar
  • 141

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