@Sunshine please provide beta firmware for MR400 router. I am unable to use jio5g sim.. please help 

  @Sunshine dear sir,

please provide me update for MR6400 V4 as i am not able to use 5g upgraded sim in router. providing you the photo of the router. 

  @Sunshine 

Will my MR 100 also get this firmware update if the firmware version

  1.40 0.9.1 v00010 build 210601 rel. 32393n

      And

  hardware version

 TL-MR 100 v1 00000002

If yes then when will i get that update.

  @gokuking download the firemware beta verson and install it

TL-MR6400(EU)_V5.30_230526 (tp-link.com)

  @Sunshine Hello, where is the firmware for V1?

  @Sunshine Thanks a lot admin it worked for my jio sim. But a new problem has occurred. Now, it is not able to do multiple band lock (i.e., "Carrier Aggregation"). Whenever I try, the Status simply shows one band.

Can you please provide solution for this problem as well?

  @Sunshine  after apn setting  5g upgraded jio sim started working but some site like tcs, Uidai  etc..  not workig  and also ipv4 ip address is not available in router login advance page . here are my screenshot of status page and all .

if you need any other info related this fell free to ask me. 

i need urgent solutaion

  @realChandan Did u find any Solution for Mr600 V1 please let me know ..recently i have activated unlimited postpaid  plan of 599 on Jio  ,now its not working .

@MukeshP @Sunshine , I am also using the Jio 599 plan. However, it doesn't work on my TP-Link MR200 V4 device. So, I ended up using the sim in my JIOFI M2 device. Even in that device, JIO 4G only connects to IPV6, but the internet works fine. However, I've been experiencing issues with some apps. I couldn't receive WhatsApp calls, and sometimes Telegram also doesn't work properly. I have already filed a complaint with Jio, but they haven't resolved the problem yet.

I've noticed that other people here are saying that the IPv4 is empty on their TP-Link devices. The truth is that once the Jio Sim is upgraded to a 5G Sim, the internet only works through IPv6 for both 4G and 5G. The only solution is to wait for JioAirFiber to become available or for TP-Link to provide a solution for all their devices.