diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
index c9930ec..0539037 100644
--- a/ARCHITECTURE.md
+++ b/ARCHITECTURE.md
@@ -365,7 +365,7 @@ PROFILE_CHANNELS=( "0:high:8" "1:low:8" ... )   # "channel:operation:change_perc
 |------|--------|------|
 | **Script A（Pre-test）** | `1_Blanton_Script_A.ttl` V1.1.6 | root 登入 → `date -s` 對時 → 清 job log → **收掉前一輪殘留**（`hw-test-session finish` → `bgctl reset --yes` → `bgctl stop --all` → `bgctl list` 確認清空）→ `hw-test-session start` → **設定風扇轉速** → **等資料面就緒**（`wait_init.ttl`）→ DUT 清單（boot/version/fwutil/syseeprom/ssdhealth/TPM/NVMe）→ BMC enroll + version/status → source bash 工具 → 清/讀 7 組 PCIe AER + `ras-mc-ctl --summary` → `lspci` → margin → PMON → dmesg → **10G/1G 管理網路 ping** → **NFC 基線**（start → 30s → stop → report）→ 100G uplink 設定與狀態 → **一輪流量基線** → `show uptime` |
 | **Script B（Stress）** | `2_Blanton_Script_B.ttl` | `mlucas-avx2 -cpu 0:15` + `bgctl run` 的 `memtester` / SSD / USB 壓力（v1.1.5 起 SSD/USB `--runtime 86400`、BMC memtester 不帶次數 = 跑到被停） + BMC DDR（`bmc-manager run memtester`）→ BMC USB net test（探測 cdc_ncm 介面，`systemd-run` 掛 4 小時 ping）→ 啟動 mgmt ping 監控 → **啟動 NFC 輪詢** → `jobs` / `bgctl list` → traffic（依 `SWB_UNIT`）→ `while 1` 每輪 PMON + `bgctl list`/`jobs` + `pause 60`（**V1.1.4 起 margin 不在迴圈內**）|
-| **Script C（Post-test）** | `3_Blanton_Script_C.ttl` | `kill $(jobs -p)` + `bgctl stop --all` / `reset` + 停 BMC USB unit、mgmt ping 與 **NFC 輪詢** → PMON + dmesg → 7 組 AER + `ras-mc-ctl` → BMC USB `journalctl` → `ip -s link show eth0/eth1` → `cat` mlucas log → **NFC `report`** → traffic `stop` + `report` → **BER 掃描**（依 `SWB_UNIT`）→ NVMe 健康 → `show reboot-cause` → **margin 掃描**（`EN_Margin`，V1.1.4 由 Script B 移來）→ `uptime` → **job log 複製到 USB（帶時戳）** → `exit` + wait『Script done』→ `hw-test-session finish` |
+| **Script C（Post-test）** | `3_Blanton_Script_C.ttl` | `kill $(jobs -p)` + `bgctl stop --all` / `reset` + 停 BMC USB unit、mgmt ping 與 **NFC 輪詢** → PMON + dmesg → 7 組 AER + `ras-mc-ctl` → BMC USB `journalctl` **寫進 `log/bmc_usb_net.log`**（不再印在 console） → `ip -s link show eth0/eth1` → `cat` mlucas log → **NFC `report`** → traffic `stop` + `report` → **BER 掃描**（依 `SWB_UNIT`）→ NVMe 健康 → `show reboot-cause` → **margin 掃描**（`EN_Margin`，V1.1.4 由 Script B 移來）→ `uptime` → **job log 複製到 USB（帶時戳）** → `exit` + wait『Script done』→ `hw-test-session finish` |
 | **Script 4（Thermal / Safety）** | `4_Blanton_Script_thermal_safety.ttl` | **獨立腳本，不接 A→B→C。** Script A 式的環境建立（登入 / session / 風扇 / `wait_init` / DUT 清單 / BMC / PCIe 清除 / `pcie_bus` / PMON / dmesg）→ **滿載**（`mlucas-avx2 -cpu 0:15` 背景 + `blanton_tr518.sh start`）→ `while 1`：PMON + `TH6_SWB0/1_power_readback.sh` + `bgctl list` / `jobs`，`pause 60`。**沒有收尾段** —— 中斷後 DUT 仍在 `port cd lb=mac` / `l2 learn off` / `test mode nr=yes`，要手動 `blanton_tr518.sh stop` |
 | **SWB loopback 流量** | `blanton_traffic_linespeed <sub> [-u 0\|1\|all]` | `init`（VLAN 30..137，成對 `cdN`/`cdN+32`）→ `clear` → `start`（`tx 200 length=324 PatternRandom=yes`，v0.7.0 起）→ `stop` → `report`（per-pair TX/RX 交叉比對 PASS/FAIL）；另有 `ps`（link/speed）與 `run`（一條龍）。**V0.6.0 起含 100G uplink `ce0`**（VLAN 138）：它沒有 loopback 對象，靠 **ingress mirror 打回自己**維持循環，`report` 最後一列就是它，底下再接一份跨 unit summary |
 | **FPGA 暫存器存取** | `cb_fpga <fn> <addr> [data]`、`fpga_rescan` | pcimem 打 `resource0` + BAR 相對 offset，32-bit word；BDF 於 source 時自動偵測；`pmc/icb/swb0/swb1_fpga` 走 VSPI 窗口 |
@@ -815,6 +815,11 @@ margin status、全部 VRM 軌的 Vin/Vout/Iout/Temp、CB + ICB 溫感讀值，
 - **`--runtime 86400` 是 24 小時的上限，不是「永遠」**：超過一天的 soak，SSD 與 USB 壓力會在
   第 24 小時安靜結束，剩下的時間那兩項是閒置的。Script B 每輪都印 `bgctl list`，數量變少會看得到，
   但**沒有任何東西會主動報警**。真的要跑更久，得把數字改大或加一段重啟 job 的邏輯。
+- **BMC USB 的 service log 只剩隨身碟一份**：Script C 把 `journalctl` 導進
+  `log/bmc_usb_net.log` 再 `cp` 到 job 目錄，**不再印在 master console log**。
+  那個 `cp` 沒有檢查回傳值（`nfc_polling.log` 檔名打錯那次就是這樣安靜失敗的），
+  失敗的話這份 log 就完全消失。要嘛在 `cp` 之後補一次 `ls` 驗證，要嘛保留一份
+  `cat` 到 console。
 - **`READ_VIN` / `READ_IIN` 不在 ADPM12200 手冊的 Table 3 裡**：`pwr_brick.sh` 讓它們沿用
   Voltage / Current 那兩組係數。50 V 輸入算得出來、數量級也對，但**手冊沒有明說**。要定案
   得找 ADI 確認，或找一個能獨立比對輸入電壓的量測點（`READ_VOUT` 就是靠 `show platform
diff --git a/CLAUDE.md b/CLAUDE.md
index 3dd8dec..dc980c9 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -239,6 +239,9 @@ Tera Term 連 COM port (115200-8-N-1)
 - ⚠️ **ICB/PDB 一律走 VI2C（`blanton_icb_vi2c.sh`），不要走 VSPI**：VSPI ~18 ms/reg 會讓 I2C
   byte 相間隔拉到 ~50 ms，踩中 SMBus 25–35 ms timeout，裝置直接 NACK。實測全掃 9.4 s vs 34.0 s。
 - ⚠️ **I2C 讀一律 Repeated START**（不是 STOP + START），否則 PMBus/SMBus 裝置（VRM、EFUSE）不理。
+- ⚠️ **Script C 的 BMC USB service log 不進 master log**：改成
+  `journalctl ... > log/bmc_usb_net.log` 再複製到隨身碟，**那是唯一一份**。
+  收工後翻不到就先確認 job 目錄裡有沒有這個檔
 - ⚠️ **VI2C 這條路的壞法是「只壞高位元組」**，不是整包壞掉。`11.98 V` 會變成 `32.00 V`
   —— 正的、數量級也不誇張，**擋全一/全零的過濾完全攔不到**。寫任何 VI2C 讀值工具都要有
   合理範圍檢查 + 重讀，光靠 `PDB_REJECT_FFFF` 那種是不夠的（`pwr_brick.sh` 的教訓）
diff --git a/docs/release-notes/v1.1.6.md b/docs/release-notes/v1.1.6.md
index 5ef0d8d..67e0b8a 100644
--- a/docs/release-notes/v1.1.6.md
+++ b/docs/release-notes/v1.1.6.md
@@ -33,6 +33,10 @@
 * `comboA` / `comboB` for CB and each SWB CONN. `comboB` is `comboA` with every direction flipped, so running both covers each rail high and low while its neighbours sit the other way.
 * NC channels stay at `nominal` in both — there is nothing to margin on an unused rail (CONN14 CH10/11/13, CONN15 CH10).
 
+**The BMC USB service log is captured again — to a file**
+* Script C's `journalctl` dump had been commented out, so that service log reached nothing at all. It now runs with `-o short-iso` into `log/bmc_usb_net.log` and is copied into the job directory for the USB archive. The ISO timestamps line up with the other monitor logs, and `rm -f` first keeps the file to one run.
+* **It is no longer printed to the console**, so the USB copy is the only copy. If that `cp` fails — and nothing checks it — the service log is gone. Check the job directory before packing up.
+
 ## 📦 Downloads
 
 | File | Contents |
@@ -51,6 +55,7 @@ grep -rlU $'\r' ~/Blanton_Script    # expect no output
 ## ⚠️ Before you run
 
 * **`READ_VIN` and `READ_IIN` are not in the datasheet's coefficient table.** They are decoded here with the voltage and current coefficients — consistent with a ~50 V input, but not stated by the datasheet. Anything quoting brick Vin should have that confirmed first. `PB_VIN_M` / `PB_IIN_M` are where to change it.
+* **The BMC USB service log only exists on the USB stick.** It is not in the master console log any more.
 * **`NA` has two meanings**: nothing readable, or read but outside its plausibility window. Use `PB_TRIES=1 ./Blanton_Script/pwr_brick.sh show -r` to see the unretried raw words and tell them apart.
 * **Margin profiles are positional.** `comboA_SWB_CONN13` applied to a CONN16 board margins the wrong rails and nothing detects it.
 * **`blanton_multiphase_margin.sh save` is permanent**, and it must not be mixed with `margin.sh` — same rails, two access paths, no interlock.
diff --git a/src/Script_ABC_Blanton/1_Blanton_Script_A.ttl b/src/Script_ABC_Blanton/1_Blanton_Script_A.ttl
index e71137b..265ae3a 100644
--- a/src/Script_ABC_Blanton/1_Blanton_Script_A.ttl
+++ b/src/Script_ABC_Blanton/1_Blanton_Script_A.ttl
@@ -261,9 +261,16 @@
 ;                                                                         into 32.00 V - a value no all-ones filter catches
 ;                       docs/ADPM12200..._Datasheet_2025_12_19.pdf      The brick datasheet the pages and coefficients above
 ;                                                                         came from
-;                       ScriptC                                         Re-enable the BMC USB journalctl dump - it had
-;                                                                         been commented out, so the service log never
-;                                                                         reached the master log
+;                       ScriptC                                         Re-enable the BMC USB service log, and send it to
+;                                                                         a file instead of the console
+;                                                                         journalctl ... -o short-iso > log/bmc_usb_net.log
+;                                                                         then cp it into the job dir for the USB archive
+;                                                                         rm -f first, so the file is this run only
+;                                                                         -o short-iso gives it timestamps that line up with
+;                                                                         the other monitor logs
+;                                                                         !! it no longer appears in the master console log,
+;                                                                            so the USB copy is now the ONLY copy - if that
+;                                                                            cp fails the service log is gone
 ;                       LTC2980_Margin_Script/profiles/                 Add comboA / comboB per board (CB + SWB CONN13..16)
 ;                                                                         Checkerboard pair: comboB is comboA with every
 ;                                                                         direction flipped, so running both covers each rail
diff --git a/src/Script_ABC_Blanton/3_Blanton_Script_C.ttl b/src/Script_ABC_Blanton/3_Blanton_Script_C.ttl
index cd139a9..e8f58c3 100644
--- a/src/Script_ABC_Blanton/3_Blanton_Script_C.ttl
+++ b/src/Script_ABC_Blanton/3_Blanton_Script_C.ttl
@@ -79,7 +79,9 @@ sendln "cat ./Blanton_Script/log/bmc_poll.log"
 
 ; ========== BMC USB Test result ==========
 wait prompt_sonic_root
-sendln "journalctl -u qfx5252-bmc-usb-net-test.service --no-pager"
+sendln "rm -f ~/Blanton_Script/log/bmc_usb_net.log"
+wait prompt_sonic_root
+sendln "journalctl -u qfx5252-bmc-usb-net-test.service --no-pager -o short-iso > ~/Blanton_Script/log/bmc_usb_net.log"
 
 
 ; ========== CHECK Stress results ==========
@@ -209,12 +211,16 @@ sendln cmd
 
 ; ========== Copy Stress Log to USB ==========
 wait prompt_sonic_root
+sendln "cp ./Blanton_Script/log/bmc_usb_net.log /host/hw-eval/jobs/"
+wait prompt_sonic_root
 sendln "cp ./Blanton_Script/log/bmc_poll.log /host/hw-eval/jobs/"
 wait prompt_sonic_root
 sendln "cp ./Blanton_Script/log/mgmt_ping.log /host/hw-eval/jobs/"
 wait prompt_sonic_root
 sendln "cp ./Blanton_Script/log/nfc_poll.log /host/hw-eval/jobs/"
 
+
+
 wait prompt_sonic_root
 getdate ts_date "%Y%m%d"
 gettime ts_time "%H%M"