Hi, I'm not an electronic engeneer but I have an idea to upgrade My Book Essential into Live version with Ethernrt port.
I have open box and look that inside was :
U4 - W2520BLNIG - 2Mb Winbond Serial Flash Memory Dual I/O SPI
U6 - APM4532 - Dual Enhancment Mode MOSFET (N and P Channel)
U5 - RT8284 - DC-DC Step Down Converter
U2 - SYSMWAVE SW6316-3VB14 Single Chip USB 3.0 SATA Bridge
so I have think to connect at USB port an USB 3.0 Micro Type B - USB 2.o Type A jack Female Converter Adapter at USB port of MyBook and after connect an Apple MC704ZM/A Ethenet 10/100 ADAPTER USB 2.0 or better a Moshi USB 3.0 to Gigabit Ethernet Adapter
that have complete driver linux compatibility.
So I ask if my idea is realizable and if 2Mb flash memory inside can contain new firmware upgrade.