Learn GSM

Thanh · ict.tutorial.learngsm

Not rated yet 265 downloads v1.0.1 2.8 MB Android 2.3+ PEGI 3 · Everyone

Download APK 2.8 MB All versions

At a glance

Latest version: v1.0.1 (1)
Updated: Jan 8, 2024 (2 years ago)
APK size: 2.8 MB
Requires: Android 2.3+ (API 9)
CPU support: Any (no native code)
Category: Books & Reference (app)
Listed since: Sep 6, 2019 (at least)
Permissions: 4 (1 sensitive)

About this APK

Learn GSM is an app by Thanh in the Books & Reference category, listed since at least September 2019. It has no native code, so it runs on any Android processor.

It asks for 4 permissions, 1 of them sensitive: modify shared storage.

Description

From the listing uploaded by “catappult”.

GSM is a globally accepted standard for digital cellular communications GSM uses narrowband Time Division Multiple Access (TDMA) for providing voice and text based services over mobile phone networks. This tutorial has been designed for readers who want to understand the basics of GSM in very simple terms. This tutorial provides just about enough material to have a solid foundation on GSM from where you can move on to higher levels of expertise

Security & authenticity

Security rating: Unknown

Signing certificate

Certificate issued to “OpLai” Not the developer's name (“Thanh”). Names in certificates can't be verified, so this alone proves nothing.

Store checks and file details

Developer signature not checked yet Aug 28, 2015
Antivirus scan passed Nov 16, 2020
Signed byCN=Nguyen Thai Hoang, OU=OpLai, O=OpLai, L=Hanoi, ST=Hanoi, C=84
Signing certificate (SHA-1)A2:E3:7A:5C:73:FE:09:D8:C4:E7:36:65:37:CC:9A:A3:EB:86:D4:C8
File MD5f57890e14d04f59177b0cc763487f0a2
Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (4)

Learn GSM requests 4 permissions, 1 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Full network access android.permission.INTERNET
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Portrait screen android.hardware.screen.portrait
Touchscreen android.hardware.touchscreen
Wi-Fi android.hardware.wifi

Learn GSM APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Learn GSM APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Unknown. After downloading, check that the file's MD5 is f57890e14d04f59177b0cc763487f0a2.