Flash GPON SFP-ONU sticks the easy way
How to re-flash the FS.COM GPON ONU Stick or Huawei MA5671A with the SFP-to-TTL adapter
What this guide is about
The wildly popular FS.COM GPON ONU Stick (PN: GPON-ONU-SFP-20B) and Huawei
router
Fix the DIAG blinking led with Cisco RV042G router
If you experienced a blinking DIAG led on your Cisco router, you will have to reinstall a firmware using a dedicated procedure.
Download the latest firmware
You will find it on Cisco Support