Billion BiPAC 6200WZL R2 User Manual page 84

Recovery procedure：
If your device's upgrade failed, then you can take emergency recovery procedure to recover. Usually,
if the device failed to upgrade successfully, the recovery page will automatically (or you enter
192.168.1.254 at the address bar) turn to the page showed as below, entering the recovery mode.
Select the correct file used for upgrade, and press START.
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