Quattro firmware update using VRM

I have a Quattro with firmware 486. To use generator warm-up/cool-down the advice is to update to at least 502. Latest is about 522. I looked for the procedure. There are several. I do not have a Windows PC or a USB-MK3 dongle. VRM is said to be posisble. Described here: Remote VE.Bus firmware updates [Victron Energy] but this process loses configuration and needs a Windows based tool to re-programme configuration. I have Android phone/tablet. Is there a way now to smoothly update Quattro firmware not using Windows or special hardware?

Unfortunately not.