Why won't the Cisco c881 router boot?

Question

network hardware

Hello.
The tsiska stopped loading, when it is turned on it throws it into rommon.

=== Flushing messages () ===

*** System received a Bus Error exception ***
signal= 0xa, code= 0x0, context= 0x881876dc
Stack trace:
PC = 0x00000000, SP = 0x00000000
No stack frames available
CPU Register Context:
PC  = 0x00000000  MSR = 0x00000000  CR  = 0x00000000  LR    = 0x00000000
CTR = 0x00000000  XER = 0x00000000  DAR = 0x00000000  DSISR = 0x00000000
DEC = 0x00000000  TBU = 0x00000000  TBL = 0x00000000  PVR   = 0x00000000
R0  = 0x00000000  R1  = 0x00000000  R2  = 0x00000000  R3    = 0x00000000
R4  = 0x00000000  R5  = 0x00000000  R6  = 0x00000000  R7    = 0x00000000
R8  = 0x00000000  R9  = 0x00000000  R10 = 0x00000000  R11   = 0x00000000
R12 = 0x00000000  R13 = 0x00000000  R14 = 0x00000000  R15   = 0x00000000
R16 = 0x00000000  R17 = 0x00000000  R18 = 0x00000000  R19   = 0x00000000
R20 = 0x00000000  R21 = 0x00000000  R22 = 0x00000000  R23   = 0x00000000
R24 = 0x00000000  R25 = 0x00000000  R26 = 0x00000000  R27   = 0x00000000
R28 = 0x00000000  R29 = 0x00000000  R30 = 0x00000000  R31   = 0x00000000

System Bootstrap, Version 15.1(2r)T3, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2011 by cisco Systems, Inc.

C880 platform with 524288 Kbytes of main memory

Readonly ROMMON initialized
rommon 1 >

Answer 1

After that, manually tried to continue the download?
Did you follow the recommendations from here? https://www.cisco.com/c/en/us/support/docs/ios-nx-...

Answer 2

And earlier this software was loaded on this piece of iron?
Show what the rommon commands say:
dev
dir flash:
boot
Look here, maybe you will see something useful?
www.justogroup.ru/dokumentacija/cisco/marshrutizir...

Answer 3

The problem was with memory.