Error Code: 0x5319
Software: LG UP (LG Universal Flash Tool) – a cross-platform tool used for flashing KDZ firmware files, partitioning, and low-level management of LG smartphones (usually Qualcomm-based models).
Common Context: The error typically appears when attempting to flash a KDZ file (stock firmware) in "Upgrade" or "Partition DL" mode, or when using the "Refurbish" process. It usually stops the process at 4%, 5%, 7%, or 9% completion.
In Windows, this error may sometimes be accompanied by a Windows driver error message:
"Device USB\VID_043E&PID_....... was not migrated due to partial or ambiguous match."
Error 0x5319 is typically a transport, compatibility, or signature-related flashing failure. A systematic diagnostic approach—hardware checks, driver validation, firmware verification, and controlled flashing—resolves most cases. When anti-rollback or bootloader locks are involved, official support is the safe path. lg up error 0x5319
If you still see error 0x5319 after trying all six methods, the KDZ file is likely completely incompatible with your phone model. Find the correct firmware using your phone’s exact model number (e.g., LM-V600EA for LG V60 EU version).
No public method exists to downgrade ARB on post-2018 LG phones without JTAG or engineering tools. If you are stuck on a high ARB with no newer KDZ (rare, but happens for discontinued models), you cannot flash any KDZ anymore. Error Code: 0x5319 Software: LG UP (LG Universal
LG UP version 1.15 is known to have slightly looser checks than newer versions. If you are using v1.16 or v2.0, downgrade to v1.15.
Where to find it: Archived LG developer tools or XDA forums. Error 0x5319 is typically a transport, compatibility, or
Installation:
LG update servers require a direct connection. Security software often flags large incoming data files as suspicious.
Error 0x5319 is a CrossDL mismatch error. It indicates that the firmware you are trying to flash does not match the expected model or region of your phone.
In simple terms: The tool reads your phone’s internal model ID (e.g., LG-H930) and compares it to the model ID inside the KDZ file. If they don’t match exactly, LG UP refuses to proceed and throws error 0x5319.