Das inoffizielle Android-Systemhandbuch
SanDisk Ultra 32GB 80MB/s UHS-I Class 10 Micro SDHC Memory Card SDSQUNS-032G, grey, white
Sandisk Ultra Android 64GB MicroSDXC Memory Card Up to 80 MB/s – Class 10
Auanoz 32GB TF-Memory card, High-class 10 UHS-I High Speed TF Memory Card for Phones, Tablets and PCs
SanDisk Ultra Android microSDHC 16GB up to 80MB/sec, Class 10 Memory Card + SD Adapter FFP (Certified and Refurbished), 64 gb
Memory Card, Micro SD Card (A1, U3, C10, V30, 4K, 667X), TF Memory Card up to 100 m /s for Cameras, Dashcam, Switch and Smartphones, Only card 128 GB
UGREEN USB C Card Reader USB 3.0 Card Reader SD Micro SD Adapter to USB-C Card Reader USB Type C Compatible with Thunderbolt 3 for MacBook Pro, iPad Pro 2018, Samsung S20/S10, A51, Huawei P30 etc.
Patriot Memory A1 V30 Card
WingHome 4-in-1 SD Card Reader for iPhone and Android, Trail Camera Card Viewer, Micro SD/TF Card Adapter to View Game Camera Photos and Videos on Smart Devices
Safe Data-Wipe
The day will come: your good-old Android shall get replaced by a newer model. If you no longer need the "old one", you probably want to give it away. But you certainly don't want the new owner accessing your sensible data which might have been stored on it. So what to do?
There's of course the Factory-Reset. But does it really sanitize your data in a way they cannot be (easily) restored? Unfortunately, that's not the case: though they are deleted, they are not wiped – so with the right tools, they could be restored. Admitted, that takes some little knowledge and work – but it's possible. A good counter-measure is to really "nuke" or "wipe" the storage – i.e. overwrite it with "random patterns". Corresponding guidelines are described by the National Institute of Standards and Technology (NIST) in a PDF Dokument.
Secure Wipe
- Data Eraser cb (4.9@2,524) Ǥ 8
demo limited to 10MB/day; unlock key required (cost unknown) - Secure Erase with iShredder 6 (4.7@4,992) Ǥ 13 2
/ iShredder™ 6 PRO Data Shredder (3.5@210; ~EUR 5.50) Ǥ 12 2 / iShredder™ 6 Enterprise Eraser (4.1@103; ~EUR 9.50) Ǥ 12 Video Review 10/2013; Intro 12/2013; Vorstellung 1/2014; free version sanitizes free space only - Shreddit - Data Eraser (4.4@3,701) 8 1
- Data Sanitizer (4.3@30) 4 2 LastUpdate: 2017-02-08 free space only
- Phone Factory Reset (4.2@1,012) 2 1 LastUpdate: 2018-08-26
- File Schredder (4.2@5) 5 2
- Secure delete (3.9@3,843) 5 LastUpdate: 2018-11-08 / Secure delete Pro (4.4@203; ~EUR 2.25) Ǥ 6 1 LastUpdate: 2018-10-01 files + folders
- Secure Bulldozer (Wipe Remove) (3.9@187) 4 LastUpdate: 2014-09-05
- Fastwipe (3.9@85) 1 LastUpdate: 2014-03-18 sanitizes free space only
- Secure Eraser (3.8@1,173) Ǥ 7 5 sanitizes free space only
- FShred - Wipe Free Space (3.8@147) 2 LastUpdate: 2017-03-26 sanitizes free space
- Safe Delete (3.8@112) Ǥ 16 3 LastUpdate: 2017-09-20 safely deletes files (not wiping free space)
- Andro Shredder (3.7@1,675) 5 2 LastUpdate: 2018-03-20 files + free space
- Secure Wipe (3.6@2,363) 2 LastUpdate: 2014-06-13 sanitizes free space only
- Permanent Delete Files – Data Eraser (3.6@916) Ǥ 7 4
- SHREDDER : Permanent Delete - Safe & Secure Erase (3.5@574) Ǥ 10 5
- Super Erase (3.5@502) Ǥ 5 3 files + folders; free space requires in-app payment (go pro)
- Safe Delete (3.5@197) 5 3 LastUpdate: 2018-04-02 safely deletes files (not wiping free space)
- Wipe Files (3.5@14) 2
LastUpdate: 2016-02-22 Github; securely wipes files (but not free space) - SDelete - File Shredder (3.4@735) 4 1 LastUpdate: 2017-09-15 / SDelete Pro - File Shredder (3.2@12; ~EUR 2.00) 2 LastUpdate: 2017-09-17
- Complete Wipe (3.3@109) 2 LastUpdate: 2016-06-21
- Secure File Deletion (3.2@72) 4 LastUpdate: 2013-04-29
- Remo File Eraser (3.1@215) 2 LastUpdate: 2015-09-13
Automated Deletion
Not quite a safe wipe as described above – but still a welcome helper: automatically do a factory-reset / delete all files, if the number of unsuccessful unlock-trials exceeds a certain threshold. That at least makes it more difficult for the attacker to access your data. Unfortunately, none of the few apps in this group is available anymore.
De-Deletion (Recovering)
- Restore Deleted Photos and Video Files by Dumpster (4.2@329,282) Ǥ 23 18 Vorstellung 7/2014; Intro 7/2014; a recycle bin
- DigDeep Image Recovery (4.2@322,875) Ǥ 12 5
- Recover My Files (4.2@8,977) 10 3 LastUpdate: 2018-06-21
- Restore Deleted Photos & Image (4.1@5,350) 4 1 LastUpdate: 2017-05-12
- Deleted Photo Recovery Workshop (4@65,719) Ǥ 8
- GT Recovery - Undelete,Restore (4@39,218) Ǥ 17
- Recover Deleted Pictures (4@4,337) 5 3 LastUpdate: 2017-12-30
- DiskDigger photo recovery (3.9@358,435) 5 / DiskDigger Pro file recovery (2.9@3,081; ~EUR 3.25) 5 Intro 7/2019
- File Recovery - Photo & Video (3.9@13,451) Ǥ 5 1 LastUpdate: 2016-05-19
- RECYCLING BIN (3.9@178) 8 LastUpdate: 2017-08-11
- Data Recovery : Recover Deleted Photos (3.9@170) 10 3 LastUpdate: 2018-01-08
- Recycle Bin (3.7@17,420) Ǥ 9 3
- Undeleter Recover Files & Data (3.6@37,793) Ǥ 20 25
- Recover Deleted All Files, Photos, Videos &Contact (3.5@634) 11 3
- GT SMS Recovery (3.3@2,471) Ǥ 10 LastUpdate: 2016-06-30
- dr.fone - Recovery & Transfer wirelessly & Backup (2.8@30,401) Ǥ 6 3
Further Readings:
- Best Apps To Delete Unwanted Photos from Android Phones Parmanently (8/2018)
- Handy verkaufen? Daten richtig löschen (12/2017 - 12/2019)
- Handydaten sicher und endgültig löschen (9/2017 - 1/2018)
- Gelöschte Bilder wiederherstellen (3/2015 - 1/2019)
- Android bereinigen: So löscht Ihr überflüssige Dateien für mehr freien Speicherplatz (9/2014 - 12/2018)
- Private Daten sicher löschen – so wird’s gemacht (7/2014)
- Android zurücksetzen: So macht ihr euer Smartphone komplett platt (10/2013 - 1/2018)
- Handy-Daten sicher löschen (10/2013 - 1/2018)