Mobile 101

GSM? iSIM? Fair usage policy? Navigating technology means learning a ton of acronyms and terms — but no question shall go unanswered here! We cover everything from the most basic to niche tech and mobile lingo.

Why is my eSIM not working? Reasons and 15 ways to fix it

Mobile 101

Mar 18, 2026

13 min read

Why is my eSIM not working? Reasons and 15 ways to fix it

Ugnė Zieniūtė

What is tethering, and how does it work?

Mobile 101

Mar 15, 2026

10 min read

What is tethering? How it works and how to activate it

Ugnė Zieniūtė

Why is my cellular data not working? Fixes for iPhone and Android

Mobile 101

Feb 12, 2026

12 min read

Why is my cellular data not working? Quick fixes for 2026

Ugnė Zieniūtė

Is public Wi-Fi safe? What you need to know

Mobile 101

Feb 11, 2026

17 min read

Is public Wi-Fi safe? What you need to know in 2026

Karolis Pilypas Liutkevičius

Do hotspots use data? Everything you need to know

Mobile 101

Nov 26, 2025

17 min read

Do hotspots use data? Everything you need to know

Karolis Pilypas Liutkevičius

SIM swapping explained: What it is, how it works, and how to prevent it

Mobile 101

Oct 15, 2025

14 min read

SIM swapping explained: What it is, how it works, and how to prevent it

Giedrė Palubinskaitė

What is data roaming? Definition, cost, and the ways to turn it on or off on your phone

Mobile 101

Sep 28, 2025

10 min read

What is data roaming? Definition, charges, and how to stay connected abroad

Ugnė Zieniūtė

What is a SIM card, and what does it do?

Mobile 101

Sep 23, 2025

10 min read

What is a SIM card? Types, sizes, and how it works

Giedrė Palubinskaitė

What is international roaming, and how does it work?

Mobile 101

Sep 18, 2025

9 min read

What is international roaming, and how does it work?

Ugnė Zieniūtė

What is Wi-Fi calling, how does it work, and what are its pros and cons?

Mobile 101

Sep 16, 2025

11 min read

What is Wi-Fi calling, how does it work, and what are its pros and cons?

Giedrė Palubinskaitė

11 ways to protect data on a mobile device

Mobile 101

Jul 25, 2025

10 min read

11 ways to protect data on a mobile device

Karolis Pilypas Liutkevičius

Is it better to keep mobile data on or off?

Mobile 101

Jul 6, 2025

10 min read

Is it better to keep mobile data on or off?

Karolis Pilypas Liutkevičius