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Revise DOCS.md for configuration instructions
Updated configuration instructions in DOCS.md to improve clarity on disabling audio, Bluetooth, and WiFi, along with optimizing cmdline.txt.
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@@ -275,14 +275,22 @@ sudo nano /boot/firmware/config.txt
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```ini
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dtparam=audio=off # Disable the default onboard audio to prevent conflicts
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dtoverlay=disable-bt # Disable onboard Bluetooth to reduce USB bandwidth usage
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dtoverlay=disable-wifi # Disable onboard wifi
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# ── Audio ──────────────────────────────────────────────────────
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dtparam=audio=off
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start_x=0
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# ── Disable radios (RF + background jitter) ─────────────────────
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dtoverlay=disable-wifi
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dtoverlay=disable-bt
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# ── Headless / minimal firmware probing ─────────────────────────
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gpu_mem=16
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start_x=0
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camera_auto_detect=0
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display_auto_detect=0
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disable_splash=1
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# ── Optional: only effective on newer Pi4B revs / Pi 400 ────────
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arm_boost=1
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hdmi_blanking=2 # Disable HDMI (save power and reduce interference)
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```
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@@ -295,7 +303,7 @@ sudo nano /boot/firmware/cmdline.txt
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```ini
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console=serial0,115200 console=tty1 root=PARTUUID=2f0ecb16-02 rootfstype=ext4 fsck.repair=yes rootwait cfg80211.ieee80211_regdom=FI dwc_otg.fiq_enable=0 dwc_otg.fiq_split_enable=0 dwc_otg.fiq_fsm_enable=0 dwc_otg.lpm_enable=0
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console=serial0,115200 console=tty1 root=PARTUUID=2f0ecb16-02 rootfstype=ext4 fsck.repair=yes rootwait cfg80211.ieee80211_regdom=FI dwc_otg.fiq_enable=0 dwc_otg.fiq_split_enable=0 dwc_otg.fiq_fsm_enable=0 dwc_otg.lpm_enable=0 usbcore.autosuspend=-1 snd_usb_audio.nrpacks=1 threadirqs
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```
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- **Disable useless services**
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