Ensure your software environment is capable of handling the chipset.
Always back up your current firmware and IMEI data before attempting to flash new PAC files, as "Operation failed" errors can sometimes lead to a hard-bricked state or a "reboot loop" if the system partition is partially written. Accidentally flashed a wrong firmware – Alldocube Global ub1132 operation failed
For devices with removable batteries, disconnect the phone, remove the battery, re-insert it, and then hold the Volume Down button while reconnecting the cable to force the device into the correct boot mode. 2. Update the Flashing Tool and Drivers Ensure your software environment is capable of handling
