OC300 Bricked after Firmware Update on ER7206 v2

OC300 Bricked after Firmware Update on ER7206 v2

OC300 Bricked after Firmware Update on ER7206 v2
OC300 Bricked after Firmware Update on ER7206 v2
Tuesday - last edited Wednesday
Hardware Version: V2
Firmware Version:

Hi All,

 

I have an isolated network for experimenting with devices, which includes an ER7206v2 router, an OC300 Omada hardware controller, and 2x TL-SG3428 switches. Yesterday, I was updating the firmware on the ER7606v2 router to the latest release, but the mistake I made was not assigning a static IP to the OC300 controller, which was annoying but manageable. Here's the fun part: I lost access to the OC300 UI (which was expected). I then tried to factory reset everything (Router, Controller, and Switches). I was able to succeed with the Router and Switches without an issue, but on the Controller side, it is not responding at all. I only have the power LED on (the device isn't on the cloud, so the Cloud LED was off even before this event), and the LEDs on the Ethernet ports are also off, even though they are connected and the cables are functioning as expected with other devices. The physical reset button on the device isn't responding either. I tried several different factory reset/recovery mode methods, including those from https://www.tp-link.com/us/support/faq/3114/, but none of them worked. I'm just checking to see if anyone has encountered the same issue before, like I am currently experiencing.

 

Thanks

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Re:OC300 Bricked after Firmware Update on ER7206 v2-Solution
Wednesday - last edited Wednesday

  @Dcan 

 

Hi, can you see the OC300 on the router's client list?

 

you may refer to the following:

1. Unplug the OC300, leave it powered off for some hours;

2. Try firmware recovery again;

3. Use a working cable, run a loop test on the two LAN ports, see if the LAN ports will lit up or not; like below:

 

4. If none of above works, you may contact your retailer to check warranty.

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Re:OC300 Bricked after Firmware Update on ER7206 v2-Solution
Wednesday - last edited Wednesday

  @Dcan 

 

Hi, can you see the OC300 on the router's client list?

 

you may refer to the following:

1. Unplug the OC300, leave it powered off for some hours;

2. Try firmware recovery again;

3. Use a working cable, run a loop test on the two LAN ports, see if the LAN ports will lit up or not; like below:

 

4. If none of above works, you may contact your retailer to check warranty.

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Re:OC300 Bricked after Firmware Update on ER7206 v2
Thursday
Thanks for the reply. I unplugged the device for various power cycles such as for 5min, 15min, 30min, 1hr and overnight as well before trying to firmware recovery each time but no luck with that, I also tried loop test but still no progress. I don't even have the LEDs on or off on the LAN ports if I connect something. As I mentioned I only have the power LED ON, and I think my device is stuck at booting sequence and not letting me perform any action on it
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