Zyxel EX3301-T0


Why can't I upgrade formware to the version found in the files EX3301-T0_5.50(ABVY.4)C0 ?
My current formware version is V5.50(ABVY.3.1)I0
All Replies
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Firmware it skould be :)
The message I receive is
Image uploading failed. You may press 'Cancel' to upload another firmware image file, or press 'OK' to reboot to recover normal operation.
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You have a special branded firmware from your ISP so it dont works , and if your contract is actual with this ISP you may have no right to upload this original firmware at least you should contact your ISP before . Maybe its owned by your ISP too ?
Otherwise you can try to upload the original firmware via ftp like this :
https://support.zyxel.eu/hc/en-us/articles/360005562413-Download-Upload-Configuration-File-via-FTP-on-a-USG
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