For Third Party firmware options, there's no options currently. Unfortunately, the only options I found is... Nothing. As TP-Link removed firmware download or downgrading to protect the "ISPs"...

The Honista APK is nothing but a spyware, instagram? Seriously, I don't use that platform. Sorry... No.

@yves.remy apparently there's no archive to the firmware itself unfortunately. Despite this they treated customers who literally bought it unlocked like trash too. The ROUTER was formerly for...

@Marvin_S If I look in the web archive THIS MODEL WAS for consumers! Before moving it into the "SErvice Providers." I got this unlocked supports all ISP which all of them doesn't even sell Tplink...

@xizham There's a shop in Thailand that sells unlocked Nx510v with telephony features that you may use for Fax or Phone. Those has been stocking up in JIB and Shopee Thailand, you can check those!...

@Paulochon There's unlocked Nx510v only found within Shoppee or sold in JIB stores in Thailand currently. Those are when it wasn't LISTED as service providers, but routers for the people. Probably...