Juniper Networks ISG Series BootROM V1.1.0 (Checksum: 90554656)
Copyright (c) 1997-2005 Juniper Networks, Inc.
Total physical memory: 2048MB
Test - Pass
Initialization................ Done
Hit key 'X' and 'A' sequentially to update OS Loader....
Loading OS Loader from on-board flash memory... +++
Done!
Ignore image authentication!
Start loading...
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Done.
Juniper Networks NS-ISG 2000 OS Loader Version 1.1.7
Initialize FBTL 0.. Done
Hit any key to load new firmware
Hit any key to load new firmware
Hit any key to load new firmware
Hit any key to load new firmware
Loading default system image from on-board flash disk...
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Done! (size = 14,680,937 bytes)
Ignore image authentication!
Start loading...
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Done.
Juniper Networks, Inc
NS-ISG 2000 System Software
Copyright, 1997-2008
Version 6.3.0r14.0
ScreenOS Public Heap Initialization
.................................................................................................................................................................................................................................................................................................................................................................................................................................Public heap start :0x04A00000, size :1751117824
Done
Load Manufacture Information ... Done
Initialize FBTL 0.. Done
Initialize FBTL 1.. Done
02c10840: 00 00 00 4d 53 57 49 4e 34 2e 31 00 02 04 00 05 ...MSWIN 4.1.....
02c10840: 00 00 00 4d 53 57 49 4e 34 2e 31 00 02 04 00 05 ...MSWIN 4.1.....
Load NVRAM Information ... (6.3.0)Done
!!!Wrong chip version: 7

求大神解救

1、use command: delete cry auth key
2、 upgrate a new os pls