Forcepoint NGFW N350: How to do an emergency image reload from the boot loader
By Sai Kiran Pandrala · reviewed by Sai Kiran Pandrala, Editor Last verified: 2026-05-30
| Vendor | Forcepoint |
|---|---|
| Operating system | Forcepoint NGFW / Security Manager Console |
| Category | Upgrade Failure |
| Skill level | Intermediate to advanced |
| DIY-able? | Yes with CLI access; some scenarios need Forcepoint Customer Hub + RMA. |
Upgrade work on a Forcepoint fleet is mostly about discipline. Forcepoint NGFW / Security Manager Console gives you the commands; the failure mode is almost always operator error, wrong image for the platform, integrity not checked, no rollback plan. The NGFW N120 family is no exception.
I always do a one-box pilot before a fleet roll. SMC → Configuration → NGFW Engine Upgrades → Upload + Apply on a single representative unit, then 24 hours of soak, then the rest of the fleet in waves. Skipping the soak has bitten me twice.
Forcepoint Customer Hub will want the exact build string and the upgrade method (CLI vs controller-driven) on every case, so keep that recorded for the change ticket.
What this guide covers
Do an emergency image reload from the boot loader on a Forcepoint NGFW N350 (Forcepoint NGFW / Security Manager Console).
Step-by-step
- At the boot loader, configure IP, gateway, TFTP server.
- Download the image.
- Set the boot variable to the new image.
- Reset to boot.
CLI / commands
# Boot recovery prompt: Boot menu (USB rescue)
# Verify image
Security Management Center (SMC)
# Upgrade
SMC → Configuration → NGFW Engine Upgrades → Upload + Apply
# Save / commit
SMC: Save & Refresh policy
# Rollback
SMC: Restore last working policy snapshot
Recovery options
- Boot loader recovery (Boot menu (USB rescue))
- Rollback to the previous image with
SMC: Restore last working policy snapshot - Force failover to a known-good standby (HA platforms)
Frequently asked questions
Will this work on my specific Forcepoint NGFW / Security Manager Console version?
The procedure reflects current Forcepoint NGFW / Security Manager Console behaviour. Older releases may need minor syntax adjustments, use the CLI help (? or tab-completion) to verify.
Should I open a Forcepoint Customer Hub case immediately?
Open one if you suspect hardware failure or the symptom persists after a maintenance-window reload. Make sure your support entitlement is active first.
Where can I find the Forcepoint official documentation?
https://support.forcepoint.com. search the product family + feature name.
Is this procedure safe in production?
Test in a lab or maintenance window first. Capture pre-change state so you can roll back.
Related guides
- All Forcepoint fix guides → /forcepoint/
- All vendor guides → /vendors/
Related fixes
Related guides worth a look while you sort this one out:
- Forcepoint NGFW N1100: How to do an emergency image reload from the boot loader
- Forcepoint NGFW N120: How to do an emergency image reload from the boot loader
- Forcepoint NGFW N2100: How to do an emergency image reload from the boot loader
- Forcepoint NGFW N350 partial boot then reload loop: Diagnose & Fix
- Forcepoint NGFW N350 stuck at boot loader prompt: Diagnose & Fix
- Forcepoint NGFW N350: How to recover from a corrupted image during upgrade
References
- Forcepoint support portal: https://support.forcepoint.com
- Forcepoint knowledge base: https://support.forcepoint.com
- Forcepoint security advisories: https://www.forcepoint.com/trust/security-advisories
- Open a case: https://support.forcepoint.com
Reference material, not professional advice. Validate against your specific Forcepoint NGFW / Security Manager Console version and test in a non-production environment before applying.
What changed recently?
Fault diagnosis on a Forcepoint device goes faster when you map the symptom to a recent change:
- Did firmware update in the last 7 days?
- Did the network (router, ISP, VPN) change?
- Was the device moved physically?
- Did paired devices (phone, hub, app) update?
- Were any accessories swapped in or out?
The answer narrows the root cause to a manageable subset.
Safety + preconditions
Before any work on a Forcepoint device:
- Unplug from mains for any internal-access procedure.
- Discharge stored energy (capacitors in PSUs, residual battery charge) per manufacturer guidance.
- Use ESD-safe handling for boards and modules, no carpet, no wool sleeves.
- Avoid moisture; never apply liquids near vents or connectors.
- If you smell smoke, see scorch marks, or feel uneven heat, stop and escalate.
How to confirm it's actually fixed
On a Forcepoint device, the test is rarely "reboot and see". Use this list:
- Active reproduction: trigger the original failure path on purpose.
- Indirect reproduction: do an activity that would expose the same subsystem.
- Status indicator review: every LED / display / app status should be green.
- 24-hour soak: leave the device under normal load overnight; check the next morning.
- Telemetry check: review the device or app's diagnostic log for new error entries.
When to call Forcepoint support instead
Escalate if:
- The same symptom returns within 24 hours of a clean fix.
- You see physical damage (burn marks, swollen battery, cracked PCB).
- The device is in warranty and a hardware replacement is the cheaper outcome.
- Repair requires specialised tools you don't own (alignment jigs, calibration software).
- Following the official path keeps the warranty intact, which matters more than the time spent.
More frequently asked questions
Does this affect other devices on my network?
Generally no. The procedure is local to this device. Network-side changes (firmware updates that affect TLS, SMB, or routing) are flagged explicitly in the steps.
Will the procedure work on the international variant?
Some features and firmware paths are region-locked. Check the model spec sheet to confirm your variant supports the menu option referenced. If you're outside the US/EU, look for the regional support portal.
How long does this fix usually take?
Most users complete the steps in 20-45 minutes the first time, and 5-10 minutes on subsequent runs once the menu paths are familiar.
Will this void my warranty?
Applying official firmware updates and following the user manual will not affect warranty. Opening sealed components, jumping safety circuits, or using third-party parts can void warranty in most jurisdictions.
What if my model isn't exactly the same revision?
Cross-check the model code on the rating plate against the manufacturer support page. Major firmware generations sometimes shift the menu path; the option is usually under a similarly-named section.