of course you could boot from USB
Question is if it doesn't show HDD just because Bootsectors are damaged,
or because of some physical damage in connection between HDD and motherboard.
You could take a usb-zif adaptor, connect it to a pc and take a look what happens here.
BenQ Siemens EF82 Proto Fw1.2 (the lost one) with 35xxx-IMEI
Siemens SX66 WM6.5.5 (5.2.28244) by D-Two Radio: 1.15.00
Ameo WM6.1 aCs2.4Ger SPL 3.5
Shift 2GB/128GBssd W7U / WM6.5 liberated: ThaiHugo Age of Reason
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