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Once you enter into Download mode, you’ill see Added message in Odin tool message box. Switch off & Boot your Galaxy A5 into Download Mode by press & hold “Power + Home + Volume Down”buttons. Now Run the Odin tool on your Computer or Laptop. Once the both files downloaded then unzip it. Now download the latest version of Odin tool v3.9: Link. First of all, download official Android 6.0.1 Marshmallow for Galaxy A5: Link. Steps to Install Android 6.0.1 Marshmallow on Samsung Galaxy A5: Enable USB Debugging Mode from Settings => Developer options.
Install Samsung latest USB driver at your PC: Link.
At least 60% charge in the battery is necessary.Take the backup of all necessary data on A5 before proceedings.
We are not responsible for any damage to your smartphone. Disclaimer: This Update tutorial is only for Samsung Galaxy A5 SM-A510F (Russia) so don’t apply to other models.