@brunocfp I have the same prolem. 
I also bought a TX-6610 recently and it has a firmware that is more recent than the 2015 one on the website...
It's ridiculous not to be able to have the latest firmware for a networking product. 
I've never seen that before with any brand. 

I really hope TP-link fixes that and uploads the latest firmware to the support page.

Same here.
Just reported a DHCP issue related to firmware HW_NAT module :

https://community.tp-link.com/en/business/forum/topic/225274

A newer build on updated kernel/RA-Link sources would have a fair chance solving the issue.

Please publish recent firmware builds !

@Sunshine 

It does not make sense! The firmware is delivered by TP-Link with the hardware. Hence, is TP-Link's responsability to release the latest firmware with all bug fixes and improvements!! Until now, I could not use my GPON and my suspicious is a firmware bug, as I reported by email to the TP-LINK support from Brazil. Unfortunately, TP-Link is not able to solve my issue due technical incompetence! Next time I will think twice before buy another TP-Link's equipament!

@Sunshine, I agree with @brunocfp, it does not make sense at all.
I got my TX-6610 from a store, not from my ISP.
It came FROM TP-LINK with a firmware more recent than the one that is available on the website.
Probably people that are buying more recent products are getting more up to date firmwares as well.
We're not asking to build a new firmware for us, we're just asking for access to the updated firmwares that the product ships with.
 

@Sunshine 

I am in line with above replies.

Your statement does not make sense as the first post screenshot clearly show a more recent generic firmware from an original device (no ISP customization).

The TX-6610 has good GPON interoperabilty and it is unfortunate to see TP-link ignoring/discarding any requests (or bug reports) just like it was a abandoned product.

Hello @parad0x0,

Could you please share the firmware that solved your problem? I am also from Brazil and my ISP is Vivo as well.

Thanks!

@brunocfp 

here :)

build 190812 Rel.40861nb

##https : // www . 4shared . com /file / 4UmGV5ybiq/TX-6610V4_UP. html

ps:remove the hashs

I hope it helps you and the other users there is a secret menu hidden in the first release .

@brunocfp open console control + shift + I (firefox / chrome) > console > copy  paste and execute

appears lot of options... bingo!

i left isp vivo my region 10  does not allow me to use any ONT

$.id("menu").insertAdjacentHTML('beforeend','<ul class="mu1"><li class="ml1"><a id="menu_network" onclick="return menuClick(this);" class="plus minus">Adv. Setting</a><ul class="mu2 ">'+
'<li class="ml2"><a href="index.htm?page=device_mgmt.htm" id="menu_wan" onclick="return menuClick(this);" class="">Device MGMT</a></li>'+
'<li class="ml2"><a href="index.htm?page=onu_sn.htm" id="menu_wan" onclick="return menuClick(this);" class="sel">ONT SN</a></li>'+
'<li class="ml2"><a href="index.htm?page=gponctc.htm" id="menu_wan" onclick="return menuClick(this);" class="">Auth CTC</a></li>'+
'<li class="ml2"><a href="index.htm?page=tcont.htm" id="menu_wan" onclick="return menuClick(this);" class="">TCONT</a></li>'+
'<li class="ml2"><a href="index.htm?page=iot_cfg.htm" id="menu_wan" onclick="return menuClick(this);" class="">IOT CFG</a></li>'+
'<li class="ml2"><a href="index.htm?page=optic.htm" id="menu_wan" onclick="return menuClick(this);" class="">Optic</a></li>'+
'<li class="ml2"><a href="index.htm?page=sw_status.htm" id="menu_wan" onclick="return menuClick(this);" class="">SW Status</a></li>'+
'<li class="ml2"><a href="index.htm?page=rt_stats.htm" id="menu_wan" onclick="return menuClick(this);" class="">Stats</a></li>'+
'<li class="ml2"><a href="index.htm?page=onu_debug.htm" id="menu_wan" onclick="return menuClick(this);" class="">ONU DEBUG</a></li>'+
'</ul></li></ul>');