If you are planning to sell your old smartphone and buy a
new one then you have to do couple of things before selling it. If you want to
keep your data secure and sound then let me tell you one factory data reset is
not enough. Simple data recovery software can easily recover your phone’s data
after factory reset also. So from now one don’t sell your smartphone without
doing the following steps.
1.Back up Your Data:
Before selling your smartphone you need to
back up everything (photos, videos, and app data). You can back up your photos
and videos on your computer manually or you can upload them in cloud. Google
photos automatically back up your camera roll’s photos and videos while you are
connected to WIFI. Google photos offer unlimited storage up to 20 MP full
resolution photos.
If you are doing it manually then connect
your phone to computer and copy them to your hard disk.
You can also back up your WIFI password and
app settings too. You will find it Settings > Backup & reset > Device
backup and check Back up to Google Drive.
2. Back up Call logs, Contacts & Messages:
If you want to back up all your contacts
then the easiest way is to import all the contacts and upload it to the google
drive. You can also do it from settings of your phone. Just sync all the
contacts to your existing Gmail id and you are good to go. When you will sign
in to new device with the same Gmail id you will get all the contacts.
You can also separately back up all the
call logs and messages of your phone by using an app called SMS back up &
Restore. It will back up all your messages & call logs and will upload it
to your mail, drive or Dropbox wherever you want.
3. Encrypt your data:
Once you have all your data
backed up now it’s time to factory reset your phone. But if you want more
security then you can encrypt your data. This means if someone wants to see or
decrypt your personal data then they will need password. You can easily encrypt
your data by going to Settings > Security > Encrypt phone. Now a days
android phones running on Android 6.0 marshmallow or above already have auto encryption
available.
4.Double Factory Data Reset:
Yes you need to factory reset your data
twice. Make sure all your data is backed up before resetting your phone. Remove
the sim cards and SD card (if you don’t want to sell your SD card) then go to Settings
> Backup & reset > Factory data reset and then tap Reset phone. You
need to put your phone’s pin to reset your phone. We are not done yet. Because
if you hand over your phone like this then anyone can recover your data with
simple data recovery software also. Now you have to again fill your phone with
Junk files like Movies, Songs, and useless Files which is not related to you at
all then again you have to reset your phone.
If you follow these steps then you are
completely safe and there is no chance of leaking any of your personal data.
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