【求助】联通雁飞RM500U-CN升级固件报错失败

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SW: RM500UCNAAR01A04M2G CUN
0C: RM50OUCNAA-D10-CU
SN: P1Q22C50B000530 IMEI:868227050285972

Download Failed.ErrCode:262; ErrMsg:[UB1132]Operation failed;