@darant surely no one will buy a V1 mr600 unless they are very very cheap.

@Rajiv.R 

 Hello, a few words have been missed in the translation.
I wanted to say that V2 does not exist for sale, at least in Italy.
I also wanted to say that the V1 firmware beta is only for MR600 V1(EU).
I also saw the V2 for MR600 on the site; it's a new hardware that I haven't found from any Seller.
Anyway, that being the case, I wouldn't trust you to buy this V2.

@MarioF Thanks. However, 4G Band 40 2300 Mhz spectrum is not used by any of the mobile service providers in your country ITALY.

so, the 4G specification about band 40 or Carrier aggregation combination with band 40 will not help you in any conditions either with MR600 V1 or V2.

In India, we need this Carrier aggregation combination with band 40A-40A 2CA / 2CC features on MR600 which is currently missing on MR600 V1, and have requested TP-Link to implement the same ASAP. otherwise, the MR600 V1 product is useless in India from the 4G+ perspective.

So, In India, we are waiting for the same feature to support 40A-40A for MR600 V1, but suddenly TP-Link has published version 2 of this Router with the 40A-40A CA function on their website but V2 is not available anywhere.

@Datman yes you are right, As per my understanding, it looks TP-Link is not able to provide 40A-40A CA support on the V1 router, and that's why they created a new hardware version V2. Now TP-Link is more interested in selling old v1 units and they would like to finish all old V1 stocks.

@Albut Yes, it is still too costly as a 4G+ router and the bad is TP-Link is still unable to provide support for 40A-40A on V1 router after several requests.

It seems TP-LINK is not very reliable... I think my next router will be a Huawei!

@darant  hello i am in Firmware Version:1.2.0 0.9.1 v0001.0 Build 200511 Rel.44954n i think is mor recent than Archer_MR600v1_1.1.0_0.9.1_[200417-rel75138]_up_boot_2020-04-20_08.44.31  ,,, or no ..because i cant fount a manually choose band under thanks for you answer frome algeria 

@darant hello i am in this version where it say it is up to date : 1.2.0 0.9.1 v0001.0 Build 200511 Rel.44954n   but i have not possibillity to choose mannualy band and probleme with sms always , and tell me if i wan downgrad to this version for it possibility to choise band ....and tell me why in version mor recent have not this possibility or i am wrong this beta is mor recent ?? frome algeria is sur no dammage for my isp support . thanks for your answer 

@MarioF have you a answer for my question please .....v2005 is mor recent then version 2004 i think ........but in 2004 have a possibility to choose band but in 2005 official have not ....what is a reason thanks for your answer ....and for what i cant find this version at section of download for mr600......

@darant Thanks for the firmware... It works! Is there a method to know the bts it is connected to?

@Rajiv.R @All 

could you refer my post #4 in the below thread .. any suggestion please?

https://community.tp-link.com/en/home/forum/topic/226306?replyId=523796