Kernel panic when booting sysb

I have a T30 with unknown password that I want to reset. The standard procedure of holding reset button while powering on did not work, Attn light never comes on. I connected to the console port to try to do it from the command line. When I select the SysB boot option, it fails with a kernel panic error...

Loading sysb root filesystem
read /sysb_root.gz failed: : invalid block type
Error: load sysb root filesystem failed
[ 6.510429] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
[ 6.510429]
[ 6.519565] CPU: 0 PID: 1 Comm: init Not tainted 3.12.19-rt30 #1
[ 6.525561] Call Trace:
[ 6.528014] [7e049e20] [40007a78] show_stack+0x44/0x15c (unreliable)
[ 6.534371] [7e049e60] [405e0a68] dump_stack+0x78/0xa0
[ 6.539504] [7e049e70] [405dd6cc] panic+0xdc/0x20c
[ 6.544291] [7e049ec0] [4003fda8] do_exit+0x7e0/0x8b0
[ 6.549339] [7e049f10] [40040cf8] do_group_exit+0x48/0xac
[ 6.554732] [7e049f30] [40040d70] __wake_up_parent+0x0/0x18
[ 6.560306] [7e049f40] [4000fe64] ret_from_syscall+0x0/0x3c
[ 6.565873] --- Exception: c01 at 0x10059da8
[ 6.565873] LR = 0x10000de0
[ 6.573259] Starting kdump
[ 6.575962] Rebooting in 5 seconds..

Assuming it's not a hardware failure, is there any other method to access/restore this device or is it bricked?


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