Can you please let me know why did I get this error
GRX500 # setenv ipaddr 192.168.1.2
GRX500 # setenv ipaddr 192.168.1.1
GRX500 # setenv serverip 192.168.1.2
GRX500 # run update_fullimage
UBI: mtd1 is detached from ubi0
Creating 1 MTD partitions on "nand0":
0x000001340000-0x000007f40000 : "mtd=8"
UBI: attaching mtd1 to ubi0
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 126976 bytes
UBI: smallest flash I/O unit: 2048
UBI: VID header offset: 2048 (aligned 2048)
UBI: data offset: 4096
UBI: attached mtd1 to ubi0
UBI: MTD device name: "mtd=8"
UBI: MTD device size: 108 MiB
UBI: number of good PEBs: 861
UBI: number of bad PEBs: 3
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 7
UBI: available PEBs: 315
UBI: total number of reserved PEBs: 546
UBI: number of PEBs reserved for bad PEB handling: 8
UBI: max/mean erase counter: 149/73
Using GRX500 Switch device
TFTP from server 192.168.1.12; our IP address is 192.168.1.1
Filename 'fullimage.img'.
Load address: 0x80800000
Loading: T T T T T T T T T T
**Retry count exceeded; starting again**
Using GRX500 Switch device