Using a generic DA file often results in the flashing process getting stuck (e.g., at "DA download 100%") or failing immediately with a "Secure Boot!" error. You specifically need these custom Vivo loaders for:
: Restoring a dead or boot-looped device to its original factory state. vivo loader daauth file full
: Removing Factory Reset Protection if you are locked out of your Google account. Using a generic DA file often results in
To use these files effectively, follow this general procedure using standard MTK repair tools: Need Vivo V11i DA and Auth file - Hovatek vivo loader daauth file full