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U-Boot issue, AP803 Access Point Module - Cisco

pyleadam2020
Level 1
Level 1

Hello,

I attempted to recover a Cisco AP803 Access Point Module to repair a corrupt IOS. However, while running commands in U-Boot, I accidentally erased the memory address 0x9f040000. I tried using the latest .tar AP803 image, but it doesn't seem to contain the correct recovery image for u-boot to bootp or tftpboot, Error below: 

System Bootstrap, Version U-Boot 1.1.5 Castor , RELEASE SOFNow running in RAM - U-Boot at: 8ffc0000
Flash Manuf Id 0xc2, DeviceId0 0x20, DeviceId1 0x14
flash size 1MB, sector count = 256
*** Warning - bad CRC, using default environment

*** Warning - bad checksum, using default shared environment

No valid address in Flash. Using fixed address
No valid address in Flash. Using fixed address
Scorpion ----> S17 PHY *
athrs17_reg_init: complete
athrs17_reg_init_wan done

Atheros on-chip NAND FLash Controller Driver, Version 0.1 (c) 2010 Atheros Communications, Ltd.
Ath Nand ID[8fff117c]: 2c:f1:80:95:02
ONFI MICRON MT29F1G08ABADAWP
Micron NAND 128MiB 3,3V 8-bit [128MB]
size = 128MB
Hit any key to stop autoboot: 0

boot_method is set to IOS_BOOT, boot IOS bootloader in NOR flash

Error: Bad gzipped data
GUNZIP ERROR - must RESET board to recover
## No elf image at address 0x9f040000

Boot IOS bootloader in NOR flash fail...

Error: Bad gzipped data
GUNZIP ERROR - must RESET board to recover
## No elf image at address 0x9f040000

Boot IOS bootloader in NOR flash fail...

Error: Bad gzipped data
GUNZIP ERROR - must RESET board to recover
## No elf image at address 0x9f040000

Boot IOS bootloader in NOR flash fail...

ath> ?
? - alias for 'help'
autoscr - run script from memory
base - print or set address offset
bdinfo - print Board Info structure
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootm - boot application image from memory
bootp - boot image via network using BootP/TFTP protocol
bootvx - Boot vxWorks from an ELF image
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
dhcp - invoke DHCP client to obtain IP/boot params
echo - echo args to console
erase - erase FLASH memory
ethreg - S26 PHY Reg rd/wr utility
exit - exit script
flinfo - print FLASH memory information
go - start application at address 'addr'
help - print online help
iminfo - print header information for application image
itest - return true/false on integer compare
loop - infinite loop on address range
md - memory display
mii - MII utility commands
mm - memory modify (auto-incrementing)
mtest - simple RAM test
mw - memory write (fill)
nand - NAND sub-system
nboot - boot from NAND device
nfs - boot image via network using NFS protocol
nm - memory modify (constant address)
pci - list and access PCI Configuration Space
ping - send ICMP ECHO_REQUEST to network host
pll cpu-pll dither ddr-pll dither - Set to change CPU & DDR speed
pll erase
pll get
printenv- print environment variables
printshenv- print shared environment variables
progmac - Set ethernet MAC addresses
protect - enable or disable FLASH write protection
rarpboot- boot image via network using RARP/TFTP protocol
reset - Perform RESET of the CPU
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
saveshenv - save shared environment variables to persistent storage
setenv - set environment variables
setshenv - set shared environment variables
sleep - delay execution for some time
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
version - print monitor version
ath>

3 Replies 3

@pyleadam2020 hi, have you tried both OS types (lightweight and autonomous)? is your environment need standalone or controller based AP? try getting OS again from below links relevant to autonomous or lightweight.

https://software.cisco.com/download/home/286289725/type

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

Yes, U-boot bootloader issue

@pyleadam2020 hi, try this method. https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9120axi-access-point/217537-repairing-c9120-c9115-access-points-from.html .

i suggest to open TAC case and they may suggest replacement.

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB
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