In some recovery options (such as ClockworkMod recovery's advanced options on some devices), there is a Format /firmware option. I have searched for descriptions of this partition, but have found little:

  • This question asks about it, but there is no authoritative answer.

  • Stock ROMs that I have do not modify this partition.

  • I see it mounted on some devices as:

    /dev/block/platform/msm_sdcc.1/by-name/modem /firmware ext4 ro,context=u:object_r:firmware_file:s0,nosuid,nodev,noatime,nodiratime,user_xattr,barrier=1,data=ordered 0 0

What are the logistical considerations surrounding this partition, including:

  1. What does the /firmware partition usually contain?

  2. Is it on all Android devices or just a subset?

  3. What are the consequences of formatting it?

  4. Can its contents be recreated?


  • For future necromancers: I'm still interested in finding an answer to this one! :) – Royce Williams Jun 17 '18 at 6:41

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