Unable to upgrade

First time here. I have a Peplink 30 during firmware version V4.8.1.
I am trying to update to a newer version and I’ve downloaded 5.3.12.
I have tried both online and manual with no success.
Is there anything I am missing?

Thanks for any help

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It sounds like you have an original classic Balance 30 device, can you confirm it is a plastic or metal enclosure?

It is a plastic case. Hope that helps.

Thanks

Unfortunately this device has been end of life for quite some time now and the firmware cannot be upgraded past 4.8.1, maximum throughput is only around 20 Mbps.

As a valued Peplink customer I would like to offer you a nice 40% discount off of a new current model Balance 30! If interested please PM me your email address.