Webconfigproblem, Updatingfirmwarefailure, Updatingpatchfailure – Hongdian H7921/H7920 Basic 3G/4G Router User Manual
Page 126: Cfeupdatingfailure, 6 web config problem, 2 updating firmware failure, 3 updating patch failure, 4 cfe updating failure, Phenomenon, Possible reason

7 FAQ
H792x 3G/4G Router
7 -92
(2014-05-28)
Wrong local route table, set right route table
7.6 WEB config problem
7.6.2 Updating firmware failure
Phenomenon
Updating firmware failure
Possible Reason
Auto reboot during updating H792x 3G/4G Router
Power supply problem
Wrong firmware
Power off during updating router
Solution
Check setting, disable the function which may cause reboot
Change to a suitable power supply
Ask technical support for suitable firmware
Power off during updating router, please make sure power supply normal
7.6.3 Updating patch failure
Phenomenon
Updating fix patch failure, after updating, view fix patch and found no fix patch
Possible Reason
Patch format wrong
Patch name too complicated
Solution
Check patch format, change to a right one
Change the patch name to a simple one
7.6.4 CFE Updating failure
Phenomenon
CFE updating failure, firmware edition no change
Possible Reason
Power supply do not match
Firmware version or format do not match
Power off during updating process