diff --git a/agent/Makefile b/agent/Makefile
index d6de9cc..bbba356 100644
--- a/agent/Makefile
+++ b/agent/Makefile
@@ -105,8 +105,22 @@ else ifeq ($(SOC),hi3516cv610)
   WDT_BASE       = 0x12030000
   CRG_BASE       = 0x12010000
   SYSCTRL_REBOOT = 0x12020004
+else ifeq ($(SOC),hi3519v101)
+  # V3A generation (3519v101 family: hi3519v101, hi3516av200) — Cortex-A7
+  # with V3-era peripheral addresses (UART 0x12100000, WDT 0x12080000)
+  # but DDR at 0x80000000 like cv500-family. Memory map per
+  # qemu-hisilicon hi3519v101_soc.
+  UART_BASE      = 0x12100000
+  UART_CLOCK     = 24000000
+  LOAD_ADDR      = 0x81000000
+  FLASH_MEM      = 0x14000000
+  FMC_BASE       = 0x10000000
+  RAM_BASE       = 0x80000000
+  WDT_BASE       = 0x12080000
+  CRG_BASE       = 0x12010000
+  SYSCTRL_REBOOT = 0x12020004
 else
-  $(error Unknown SOC: $(SOC). Supported: hi3516ev300 hi3516ev200 gk7205v200 gk7205v300 hi3516cv300 hi3516cv500 hi3518ev200 hi3516cv610)
+  $(error Unknown SOC: $(SOC). Supported: hi3516ev300 hi3516ev200 gk7205v200 gk7205v300 hi3516cv300 hi3516cv500 hi3518ev200 hi3516cv610 hi3519v101)
 endif
 
 # Per-SoC CPU. V3 chips (cv300) are ARM926EJ-S (ARMv5TEJ);
diff --git a/src/defib/agent/client.py b/src/defib/agent/client.py
index c47838d..f81e691 100644
--- a/src/defib/agent/client.py
+++ b/src/defib/agent/client.py
@@ -115,6 +115,8 @@ def get_agent_binary(chip: str) -> Path | None:
         "hi3516cv500": "hi3516cv500",
         "hi3516av300": "hi3516cv500",  # cv500-family, same memory map
         "hi3516dv300": "hi3516cv500",  # cv500-family, same memory map
+        "hi3519v101": "hi3519v101",
+        "hi3516av200": "hi3519v101",   # 3519v101 family, same memory map
         "hi3516cv610": "hi3516cv610",
         "hi3518ev200": "hi3518ev200",
     }
diff --git a/src/defib/cli/app.py b/src/defib/cli/app.py
index c6df023..20662c6 100644
--- a/src/defib/cli/app.py
+++ b/src/defib/cli/app.py
@@ -933,11 +933,16 @@ async def _agent_upload_async(chip: str, port: str, output: str) -> None:
         if output == "human":
             console.print("Downloading U-Boot for SPL...")
         cached_fw = download_firmware(chip)
-    spl_data = cached_fw.read_bytes()[:profile.spl_max_size]
+    # Pass the full U-Boot binary as spl_override; _send_spl detects the
+    # actual SPL/u-boot boundary via LZMA/gzip signature scan and slices
+    # accordingly. Pre-truncating to profile.spl_max_size hides the real
+    # boundary on chips where the OpenIPC SPL is larger than the HiTool
+    # reference (e.g. hi3516av200's SVB-enabled SPL is 0x6800, not 0x4F00).
+    spl_data = cached_fw.read_bytes()
 
     if output == "human":
         console.print(f"Agent: [cyan]{agent_path.name}[/cyan] ({len(agent_data)} bytes)")
-        console.print(f"SPL: {len(spl_data)} bytes (from OpenIPC U-Boot)")
+        console.print(f"SPL: full U-Boot ({len(spl_data)} bytes — boundary auto-detected)")
         console.print("\n[yellow]Power-cycle the camera now![/yellow]\n")
 
     transport = await SerialTransport.create(port)
@@ -1073,7 +1078,10 @@ async def _agent_flash_async(
         if output == "human":
             console.print("Downloading U-Boot for SPL...")
         cached_fw = download_firmware(chip)
-    spl_data = cached_fw.read_bytes()[:profile.spl_max_size]
+    # Pass full u-boot; _send_spl detects the actual SPL boundary so chips
+    # where OpenIPC SPL is larger than HiTool's profile_max (e.g. av200's
+    # SVB-enabled SPL = 0x6800 vs profile_max = 0x4F00) get the right size.
+    spl_data = cached_fw.read_bytes()
 
     if output == "human":
         console.print(f"Firmware: [cyan]{fw_path.name}[/cyan] ({len(firmware)} bytes, CRC {fw_crc:#010x})")