Some users have reported issues with the firmware, such as:

The typically features a different Wi-Fi chipset and flash layout compared to older revisions. Using firmware intended for the H/W Ver A1 or B1 on a J1 unit will result in:

Once the router reboots, the lights will stabilize.

: Long-time users and forum moderators often advise that the only reliable way to secure the specific J1 firmware is to contact regional D-Link support

: J1 (Verify this on the sticker at the bottom of the device)