AudioCodes C455HD Series - Manually Performing Recovery Operations

CHAPTER6 Performing Administrator-Related Operations
C455HD | Users & Administrator's Manual
2. ClicktheBrowsebuttonnexttothefield'CertsFolder'underMultiOperationsandthen
navigatetoandselectthecertificatefilestodownload.
3. ClicktheBrowsebuttonnexttothefield'PhonesIPList'underMultiOperationsandthen
navigatetoandselectthetxtfilelistingtheIPaddressesofthephonestowhichto
downloadthecertificates.TheIPaddressesarelistedoneundertheother.Eachoccupies
itsownline.Nonotationbetweenthemisrequired.
4. Clickthenowactivated Download Certsbuttontoaddthecertificatestothephones.
5. Afterashortperiod,viewintheresultspane'CertsSuccessfullyInstalled'.
Manually Performing Recovery Operations
Besides manual recovery options, the Android phones also feature an independent,
automatic problem detection and recovery attempt capability that can culminate in
recovery mode or in switching image slots. Android phones also feature a ‘hardware
watchdog’. This feature resets the phone if Android is stacked and doesn’t respond
(though Android stacking is unlikely); there’s no recovery process; the phone is only
reset.
AllAudioCodesdevicesforMicrosoftTeamshavearesetkeyoracombinationofkeysonthe
keypadtoresetit.
TheC455HDdevicefeaturesatwo-keycombinationtoactivateeachaction.Toactivatean
action,simultaneously press the two keys for three seconds.
While adevice  is powering up, youcan perform recoveryoperations by long-pressing the 
device’sresetkey/two-keycombination.
Whilelong-pressingtheresetkey/two-keycombination,thedevice’smainLEDchangescolor
aftereverynseconds;eachcolorisalignedwitharecoveryoperationoption.
Followingaretherecoveryoperationoptionsusingthetwo-keycombinationonthephone:
■ Enterrecoverymode-Long-presstheresetkeyfor4secondsorsimultaneouslypressthe
‘back’key+theMENUkey;thedevice’sLEDlightsupred.
■ Switchtotheotherslot-Long-presstheresetkeyfor10secondsorsimultaneouslypress
the‘4’key+the‘6’key;thedevice’sLEDlightsupgreen.
■ Enterthedevice’sboot-Long-presstheresetkeyfor15secondsorsimultaneouslypress
the‘1’key+the‘3’key;thedevice’sLEDlightsupblue.
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