Das inoffizielle Android-Systemhandbuch
SanDisk Ultra 64GB (SDSQUAR-064G-GN6MA)microSDXC Speicherkarte + Adapter bis zu 100 MB/Sek., Class 10, U1, A1,Grau, Rot
SanDisk Ultra 32GB microSDHC Speicherkarte + Adapter bis zu 98 MB/Sek., Class 10, U1, A1
SanDisk Ultra 32GB Android microSDHC Speicherkarte bis zu 80 MB/Sek, Class 10
SanDisk Extreme 128GB microSDXC Class 10 Speicherkarte mit SD-Adapter, Gold/Rot
QARFEE-4IN1 32GB Type C USB Flash Drive,Memory Card Reader for Micro SD,Metal USB Photo Stick External Storage Pen Drive U Disk Compatible for iPhone iPad iPod Mac Android Phone PC Laptop,Grey
PUMPKIN Android 8.1 Autoradio Moniceiver mit Navi 10,1 Zoll Bildschirm Unterstützt Bluetooth DAB+ USB Android Auto WLAN 4G MicroSD 2 Din Universal
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
- Shreddit - Data Eraser (4.3@2,246) 8
- Phone Factory Reset (4.3@644) 2
- Data Sanitizer (4.2@25) 4 LastUpdate: 2017-02-08 free space only
- Android Eraser (4@119) Ǥ 12
demo limited to 10MB/day; unlock key required (cost unknown) - Secure delete (3.9@3,507) 5 / Secure delete Pro (4.2@186; ~EUR 2.00) Ǥ 6 files + folders
- Secure Erase with iShredder 6 (3.9@1,818) Ǥ 9 / iShredder™ 6 PRO Data Shredder (3.8@197; ~EUR 4.25) Ǥ 13 / iShredder™ 6 Enterprise Eraser (4@97; ~EUR 7.00) Ǥ 13 Video Review 10/2013; Intro 12/2013; Vorstellung 1/2014; free version sanitizes free space only
- Andro Shredder (3.9@1,548) 5 files + free space
- SDelete - File Shredder (3.9@566) 4 LastUpdate: 2017-09-15 / SDelete Pro - File Shredder (3.6@7; ~EUR 2.00) 2 LastUpdate: 2017-09-17
- 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 Wipe (3.8@2,239) 2 LastUpdate: 2014-06-13 Test 3/2014; sanitizes free space only
- Secure Eraser (3.8@835) Ǥ 7 LastUpdate: 2017-03-18 sanitizes free space only
- SHREDDER : Secure Deletion (3.8@264) Ǥ 12
- FShred - Wipe Free Space (3.8@112) 2 LastUpdate: 2017-03-26 sanitizes free space
- Super Erase (3.6@420) Ǥ 5 LastUpdate: 2016-12-04 files + folders; free space requires in-app payment (go pro)
- Wipe Files (3.5@11) 2
LastUpdate: 2016-02-22 Github; securely wipes files (but not free space) - Remo File Eraser (3.4@210) 2 LastUpdate: 2015-09-13
- Permanent Delete Files – Data Eraser (3.4@203) Ǥ 7
- Complete Wipe (3.4@98) 3 LastUpdate: 2014-07-03
- Secure File Deletion (3.3@72) 4 LastUpdate: 2013-04-29
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)
- DigDeep Image Recovery (4.4@263,187) Ǥ 12
- Recover Deleted All Photos Files Videos Contacts (4.4@124) Ǥ 6
- DiskDigger photo recovery (4.2@286,107) 5 / DiskDigger Pro file recovery (2.8@2,362; ~EUR 3.25) 5
- Dumpster: Recover My Deleted Picture & Video Files (4.2@247,432) Ǥ 21 Vorstellung 7/2014; Intro 7/2014; a recycle bin
- Recover My Files (4.2@8,977) 10
- Restore Formatted SD Card (4.2@4,827) Ǥ 9
- Restore Deleted Photos & Image (4.1@5,350) 4 LastUpdate: 2017-05-12
- Recover All Deleted Pictures : Restore Photos Free (4.1@224) Ǥ 6
- Picture Recovery : Restore Data Video Media Files (4.1@147) Ǥ 6
- GT Recovery - Undelete,Restore (4@39,218) Ǥ 17
- Recover Deleted Files Photos & Videos (4@6,187) Ǥ 9
- Recover Deleted Pictures (4@4,337) 5
- Data Recovery : Restore Pictures Videos Contacts (4@144) Ǥ 6
- Partition Recovery (4@93) Ǥ 7
- File Recovery - Photo & Video (3.9@9,665) Ǥ 5 LastUpdate: 2016-05-19
- Recover Formatted SD Card (3.9@7,508) Ǥ 9
- Recover Deleted All Files, Photos, Videos &Contact (3.9@338) 11
- RECYCLING BIN (3.9@178) 8 LastUpdate: 2017-08-11
- Data Recovery : Recover Deleted Photos (3.9@170) 10
- Photo Recovery Workshop (3.8@57,812) Ǥ 9
- Recycle Bin (3.8@17,132) Ǥ 9
- dr.fone - Recovery & Transfer wirelessly & Backup (3.7@27,355) Ǥ 54
- Recover All My Deleted Files (3.7@5,344) 4
- Undeleter Recover Files & Data (3.5@32,487) Ǥ 20 Intro 11/2011 | 2/2012
- GT SMS Recovery (3.3@2,471) Ǥ 10 LastUpdate: 2016-06-30
Further Readings:
- Handy verkaufen? Daten richtig löschen (12/2017)
- Handydaten sicher und endgültig löschen (9/2017)
- Daten richtig löschen (8/2015 - 1/2017)
- Gelöschte Bilder wiederherstellen (3/2015)
- Android bereinigen: So löscht Ihr überflüssige Dateien für mehr freien Speicherplatz (9/2014)
- Private Daten sicher löschen – so wird’s gemacht (7/2014)
- Android zurücksetzen: So macht ihr euer Smartphone komplett platt (10/2013)
- Handy-Daten sicher löschen (10/2013 - 1/2018)