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Das inoffizielle Android-SystemhandbuchDas inoffizielle Android-Systemhandbuch
Buy at Amazon for EUR 7,00
GiBot USB-Typ C Kartenlesegerät, SD/Micro SD Kartenleser Speicherkartenleser mit Micro USB OTG, USB 2.0 Adapter für Samsung, Huawei, Android Smartphone, MacBook und PC LaptopGiBot USB-Typ C Kartenlesegerät, SD/Micro SD Kartenleser Speicherkartenleser mit Micro USB OTG, USB 2.0 Adapter für Samsung, Huawei, Android Smartphone, MacBook und PC Laptop
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ALLDOCUBE iPlay 7T Tablet, 6,98 Zoll 1280x720 IPS-Display, 4G Dual-SIM-Karte, 2GB RAM, 16GB ROM, 2,0MP/0,3MP KameraALLDOCUBE iPlay 7T Tablet, 6,98 Zoll 1280x720 IPS-Display, 4G Dual-SIM-Karte, 2GB RAM, 16GB ROM, 2,0MP/0,3MP Kamera
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Netac 256G Micro SD Karte, UHS-I MicroSDXC Speicherkarte bis zu 100 MB/s Lesegeschwindigkeit(U3, A1, V30, 4K, C10), Memory Karte für Kameras, Tablets und Android SmartphonesNetac 256G Micro SD Karte, UHS-I MicroSDXC Speicherkarte bis zu 100 MB/s Lesegeschwindigkeit(U3, A1, V30, 4K, C10), Memory Karte für Kameras, Tablets und Android Smartphones
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SanDisk Ultra microSDXC UHS-I Speicherkarte 128 GB (für Smartphones & -Tablets, wasserfest, temperaturbeständig, stoßfest, A1, U1, Class 10 + Adapter)SanDisk Ultra microSDXC UHS-I Speicherkarte 128 GB (für Smartphones & -Tablets, wasserfest, temperaturbeständig, stoßfest, A1, U1, Class 10 + Adapter)
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Smartwatch Fitness Armband Uhr mit Schrittzähler Touchscreen Kamera SIM-Karte Slot Fitness Tracker Fitnessuhr Smart Watch für Samsung Huawei Xiaomi LG Android Phones für Damen Herren Kinder (Schwarz)Smartwatch Fitness Armband Uhr mit Schrittzähler Touchscreen Kamera SIM-Karte Slot Fitness Tracker Fitnessuhr Smart Watch für Samsung Huawei Xiaomi LG Android Phones für Damen Herren Kinder (Schwarz)
Buy at Amazon for EUR 32,98
ACEPAD A121 (10.1") 3G Tablet PC, 2GB RAM, 64GB Speicher, Android 9.0 Pie, Dual-SIM, IPS HD 1280x800, Quad Core CPU, WiFi/WLAN/Bluetooth, microUSB/microSD (Alu-Schwarz mit Tastaturtasche)ACEPAD A121 (10.1") 3G Tablet PC, 2GB RAM, 64GB Speicher, Android 9.0 Pie, Dual-SIM, IPS HD 1280x800, Quad Core CPU, WiFi/WLAN/Bluetooth, microUSB/microSD (Alu-Schwarz mit Tastaturtasche)
Buy at Amazon for EUR 139,90
Huawei P30 lite Dual-SIM Smartphone Bundle (6,15 Zoll, 128 GB ROM, 4 GB RAM, Android 9.0) Peacock Blue + SD Karte [Exklusiv bei Amazon] - DE VersionHuawei P30 lite Dual-SIM Smartphone Bundle (6,15 Zoll, 128 GB ROM, 4 GB RAM, Android 9.0) Peacock Blue + SD Karte [Exklusiv bei Amazon] - DE Version
Buy at Amazon for EUR 229,00
HUAWEI Y6 2019 Dual-SIM Smartphone 15,46 cm (6,09 Zoll) (3020mAh Akku, 32 GB interner Speicher, 2GB RAM, Android 9.0) midnight blackHUAWEI Y6 2019 Dual-SIM Smartphone 15,46 cm (6,09 Zoll) (3020mAh Akku, 32 GB interner Speicher, 2GB RAM, Android 9.0) midnight black
Buy at Amazon for EUR 98,75
As of 2020-02-24 00:24
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Backup & Co.

Backup your apps

2020-02-21

These helpers are to backup your apps (.apk files), not their data!

Also see: AndSync with Perl via ADB => ICS+, no root required

Backup SMS/MMS

2020-02-21

Backup call logs

2020-02-21

Backup calendars

2020-02-21

Backup contacts

2020-02-21

The easiest way to export/import your contact data can be found in the Contacts app itself: it offers to export/import data using the VCard format, which is also understood perfectly by most desktop applications. From the main window, simply activate the menu, and chose Export/Import – there you are.

Backup bookmarks

2020-02-21

Backup contacts, SMS, and more

2020-02-21

Full Backups

Full Backups (root required)

2020-02-21

Full Backups without root

2020-02-21

Not all of these "complete backups" do really backup everything (if they do, I've pointed it out). An (almost) full backup without root is only possible via ADB on Android 4.0+.

Also see: Adebar, a small project of mine. Utilizes ADB and Bash to generate scripts for backup/restore, also taking care for re-disabling apps following a restore.

In the works: A FOSS pendant to the built-in Google Cloud backup, where you can shose your own resources (e.g. local card, Nextcloud) to back up to.

Full Backups: Nandroid

2020-02-21

Nandroid Backups require a rooted device with Custom Recovery.

And then there're also various PC-Tools for Backups:

Also see: Full Backup of non-rooted devices

Backups to the Cloud

Also see: Synchronizing Files and Folders.

Backup SMS into the Cloud

2020-02-21

Backup contacts into the Cloud

2020-02-21

Backup SMS, MMS, and more into the Cloud

2020-02-21

Various Cloud Backups

2020-02-21

Other Backups

Backup WiFi APNs

2020-02-21

This generally requires root. And it's a fact: root has permission to access everything…

For more apps, also see WiFi Password Recovery

Photo Backup

2020-02-23

Various Backups

2020-02-22

Further Readings:

2020-02-24