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ok1311
ok1311
Visitor III
February 21, 2025
Question

Probably Primary Meru image is corrupted, please upgrade!!

  • February 21, 2025
  • 4 replies
  • 1279 views

My FortiGate U431F is stuck in a loop in Putty after startup, with the message 'Probably Primary Meru image is corrupted, please upgrade!!' appearing during the process. However, even after entering the code 'fap22b1！$', it still doesn't stop. If I don't unplug the power, the code won't stop.

5.jpg4.jpg3.jpg2.jpgWhat should I do? Please help me, thank you!

4 replies

AEK
SuperUser
AEK
SuperUser
February 21, 2025

Did you try to install a new firmware.

Connect your laptop to FortiAP with serial cable, then boot the AP, go to the menu and install firmware.

As far as I remember the firmware installation was via TFTP through Ethernet connection with laptop.

AEK
    ok1311
    ok1311Author
    Visitor III
    February 21, 2025

    Yes, but I can't get it to stop and let me update the firmware

    AEK
    SuperUser
    AEK
    SuperUser
    February 21, 2025

    You need to power it off and power-on again, then catch the menu before it tries to boot.

    AEK
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