a phone stuck on this screen, or are you actively attempting to the bootloader for customization?
Note: This is an advanced procedure. If the official unlock fails repeatedly, technicians may attempt to unlock the device via Qualcomm EDL (Emergency Download Mode) using authorized service tools (e.g., UMT, Miracle, or official AfterSales tools). However, this carries a risk of hard-bricking the device and voiding any remaining warranty. the serial is not match fastboot unlock verify fail oppo