The A57s typically ships with based on Android 12 . Depending on your region, you may receive updates to newer versions of ColorOS.
: If the device becomes sluggish, a factory reset via the System Settings can refresh the existing firmware by clearing cached data and third-party apps. Troubleshooting and Advanced Repair Firmware OPPO A57s
When searching for "Firmware OPPO A57s," you will encounter two main categories: The A57s typically ships with based on Android 12
| Partition | Description | |-----------|-------------| | preloader | Initial bootloader for MediaTek | | lk | Little Kernel (secondary bootloader) | | boot | Kernel + ramdisk | | dtbo | Device Tree Blob Overlay | | vbmeta | Verified Boot metadata | | super | Dynamic partition (contains system, product, vendor) | | odm | OEM customization | | userdata | Factory reset image | | cache | Cache partition | | md1arm / md1dsp | Modem/baseband firmware | Firmware OPPO A57s
Ensure the battery is at least 60% charged before flashing.