When you tried to flash a firmware from a different region or carrier, LGUP would abort with:
Error: CrossDL [0x2000]. The patched version removes this check, allowing you to flash, say, a European open market KDZ onto a T-Mobile branded device.
LGUP_8994_DLL_Ver_0_0_3_23_Patched.dll.C:\Program Files (x86)\LG Electronics\LGUP\model\common).LGUP_Common.dll to LGUP_Common.dll.bak (do not delete it).common folder.LGUP_Common.dll.lgup8994dllver00323 patchedLet’s break down this search term piece by piece: lgup8994dllver00323 patched
lgup : The tool itself (LG Unified Program).8994 : Refers to the Qualcomm MSM8994 Snapdragon 808/810 system-on-chip (used in LG G4, G5, V10, Nexus 5X).dll : The library file required for flashing.ver00323 : Specific version 0.0.3.23. This version is known for having stricter anti-rollback and anti-crossflash protections than earlier versions like 0.0.2.22.patched : The most critical part. A developer or reverse engineer has modified the original LG DLL to bypass manufacturer restrictions.The original lgup8994dllver00323 introduced two major headaches for power users: Download the patched DLL from a trusted source
On XDA threads dedicated to the LG V10 (H960A) and G4 (H815), the consensus is cautiously positive. Users report that lgup8994dllver00323 patched has successfully unbricked devices that were stuck at the LG logo or trapped in a bootloop. However, veterans warn: never check the "Partition DL" box unless you know exactly what you are doing. Flashing Process
If this is an official file, why do you need a "patched" version?
Official LG DLL files are often digitally signed and encrypted to work only with specific, often older, versions of LGUP or within specific authorized service centers. When LG updates the LGUP tool (for newer phones like the V30 or G6), the newer versions of the tool sometimes stop recognizing these older DLL files due to security checks.
A "patched" version of lgup8994dllver00323 has been modified by the developer community to: