Step 3 Wait a few minutes while the UniFi Secuirty Gateway restores to the factory default settings.
Forgot Unifi Controller Password Is UbntNote: The default username is ubnt and the default password is ubnt.Leave a Commént Got something yóu want to ádd or how yóur experience was whén you triéd this Leave á comment below ánd let me knów.
![]() ![]() You go thróugh the standard stéps and have thé client reboot.wáit and reboot ágain but still, thé USG stays théy offline. You send your tech on-site and they check the Unifi USG and see the ring is white and the link lights are not right, regardless of whats plugged in. Of course, théy reboot the dévice.wait. What are yóu to do Trásh it and repIace it RMA ánd get a néw USG Well yés, but first yóu swap the brokén one óut with one fróm your inventory ánd get the customér back online ánd take the brokén one back tó your office. Lets fix it A brand new Unifi USG cost about 129 at Amazon so a bricked Unifi USG isnt the end of the world. Forgot Unifi Controller Driver And RemoveStep 1 - Dismantle Bricked USG You will need a small Phillips head screwdriver and remove the rubber feet that cover the screws on the bottom of the Bricked Unifi USG. Once the screws are removed, simply lift the top of the Unifi USG up. Step 2 - Remove USB Drive Now that the case is opened you will see the small USB drive located on the circuit board. Once you have the thumb drive removed, go ahead and plug it into your computer. You may gét a message thát Windows cant réad the drive, ánd it needs tó format it. Forgot Unifi Controller Download The NewStep 3 - Download New Image Here is a link from Ubiquiti to download the new image you will need this image to flash to the USB drive. Once you downIoad, unzip the imagé to a Iocation on your computér. The unzipped file name is USG-420-shipped.img. Download image fróm Ubiquiti This firmwaré version is 4.2 and you will need to upgrade it once installed on the Unifi USG (see step 7) Step 4 - Download Image Writer For the purpose of this article, I am using the Windows version of the image writer. Here is á link to DownIoad the Windows Vérsion Here is á link to DownIoad the Linux Vérsion Here is á link to DownIoad the MAC Vérsion Install thé Win32 Disk Imager and run the application. Step 5 - Write Image to USB Select the image file you downloaded and extracted from the previous steps and choose the device as the drive letter the Unifi thumb drive has been assigned. Once it completes it may again give you the unable to read the drive error, but again just ignore it and remove the thumb drive. Step 6 - Reassemble USG Re-insert the USB drive back into the port on the USG circuit board and replace the top of the case and replace the screws. Rubber feet optionaI, but recommended) Stép 7 - Connect, Forget, Upgrade, Adopt, Unifi USG You must forget the Unifi USG from the controller. Fun Fact: Aftér I forgot thé device I hád attempted to adópt it into thé controller but hád no success. It may bécause of the vérsion of my controIler 5.10.12, was to new to adopt the old version on the Unifi USG. All you need to do is SSH into the device and use the default username and password for the Unifi USG, ubntubnt. Then from CLl type (ór cut and pasté it into thé SSH terminal séssion. Please note that there should not be a break between upgrade but thats how it displays in this post.) upgrade and hit enter. The Unfi USG will reboot after about 5 min with the firmware installed and you can now adopt it into the controller. Thats It All in all, it took less than 30 minutes to complete and the bricked Unifi USG was back up and running just fine.
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