Yes. OPPO considers unlocking the bootloader and flashing custom recovery as warranty-voiding. However, you can relock the bootloader and flash stock firmware via SP Flash Tool to regain warranty status (hardware defects only).
: Unlocking the bootloader (if possible) will perform a factory reset and erase all data Unlock Bootloader : TWRP cannot be installed without an unlocked bootloader. Identify Your Model : Check your version by typing in the dialer. Developer Options About Phone Build Number 7–8 times until "Developer Mode" is active. Additional Settings Developer Options OEM Unlocking USB Debugging The Challenges with Oppo A5 2020 OPPO A5 5G: How to Enable USB Debugging oppo a5 2020 twrp
ColorOS encrypts the user data partition. If you see gibberish file names (e.g., sjjqk39j39j ), you need to format data: : Unlocking the bootloader (if possible) will perform
Modifying system partitions involves the risk of "bricking" your phone. Always back up your data before attempting any installation. step-by-step rooting guide step-by-step rooting guide