Hongdian H7921/H7920 Basic 3G/4G Router - Manual (Page 127)

H92x 3G/4G Router 7 FAQ
Version (2014-05-28) 7 -93
Solution
 If power supply do not match, please change then update again
 If firmware version, format do not match, please change then update again
 If power off during updating, please update again
7.6.5 Update failure in WEB GUI
Phenomenon
Updating by WEB GUI, failed and cannot visit WEB GUI again
Possible Reason
Firmware oversize cause updating failure
Solution
Using CFE mode to update again, and router will restore to factory mode. If after CFE
updating, still cannot visit WEB GUI, please contact us for repairing
7.6.6 Forget Router Password
Phenomenon
Forget router login password
Possible Reason
User has changed the password
Solution
After router power on, push and hold RESET button over 10 seconds then release, then
re-power on router, router will back to factory mode (Username/Password both admin), but
patch will reserve
When router is power on, press and hold RESET button around 1s, router will reboot and
kept all setting.