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OxygenOS Recommended way to approach a firmware upgrade

  1. Nimish Naik
    Gingerbread Feb 15, 2017

    Nimish Naik , Feb 15, 2017 :
    What is the recommended way to approach a firmware upgrade?

    Do we need a factory reset soon after the upgrade or a hard reset? What is the difference between the two? When I say firmware upgrade, I mean from previous android version (Marshmellow) to the latest one (Nougat).

    I am currently running OOS 3.5.4 Marshmellow on OP3T and got an OTA alert for OOS 4.0.3

    Looking forward to a reply from you all.

    Thanks
     

    #1
  2. Minoharu
    Feb 15, 2017

    Minoharu , Feb 15, 2017 :
    You need to make full wipe in recovery and sideload the full zip
    Also you can flash custom recovery(TWRP) and after full wipe flash ROM zip
     

    #2
  3. G_Sid_Gog_gucx
    Honeycomb Feb 15, 2017

    G_Sid_Gog_gucx , Feb 15, 2017 :
    Just download full ROM from website. Place it in root directory>backup your data>flash. No need to mess around with recovery.
     

    #3
  4. saeed14i
    Cupcake Feb 15, 2017

    saeed14i , Feb 15, 2017 :
    Simply let the OTA install and after the first boot, reboot to recovery and wipe cache. Working perfectly for me so far
     

    #4
    pa5t1s and Nimish Naik like this.
  5. Nimish Naik
    Gingerbread Feb 15, 2017

    Nimish Naik , Feb 15, 2017 :
    Great that it gave you expected results but there are few threads which tell you to go with a factory reset when you move from previous Android flavour to the next flavour.
     

    #5
  6. Onkar.Singh
    KitKat Feb 15, 2017

    Onkar.Singh , Feb 15, 2017 :
    Clean installs are always better than dirty installs .... That's why in case you run into issues with the later.. go to basics ..
    Charge the battery to 100%
    Boot in recovery Mode and delete cache.
    Do the update to the next version.
    Factory reset the device once the update is completed
    Fresh install apps from PlayStore and update them to the latest version.
    Investing the time in all these usually ensures smooth transitions ... Worth it !!!
     

    #6
    Nimish Naik likes this.
  7. Nimish Naik
    Gingerbread Feb 15, 2017

    Nimish Naik , Feb 15, 2017 :
    This sounds pretty convincing. Thank you for the tip Onkar. A small doubt though, doesn't factory's reset clear the system cache (option found only in recovery mode) as well ?
     

    #7
  8. Onkar.Singh
    KitKat Feb 16, 2017

    Onkar.Singh , Feb 16, 2017 :
    Yes it does ...
     

    #8