LDF LTE6 Kit - Off line

Hello,
I’m new to the forum and starting with Mikrotik products.
I just bought a RB2011Uias-RM router and a LDF LTE6 kit.
Following various manipulations I lost the Web and Winbox access of my LDF LTE6 kit.
During normal startup, the 4 lights are on, but the network card connects and disconnects.
I managed to start it in Netboot mode, launched Netinstall, I can see my LTE6, I try to flash it with routeros-mipsbe-7.3.1.npk (current version) and the option “Apply defaut config” but :

  • it seems to transmit the file well (install then ready)
  • the light remains blue and the software indicates ready.
  • the reboot button does not appear
  • if I unplug nothing has changed
    I thank you in advance for your help
    NB: I wanted to activate the IP V6 package (origin of the bug)

screenshot of Netinstall


Screenshot_2.png
Screenshot_1.png

Hello,
Is there a way to access this equipment when it is in Netboot mode to solve this problem?
Is it possible to connect to the card with a serial terminal or something else?
None of the reset procedures work.
Thanks for your help

Hello to all of you,
Following the answer of the MIKROTIK hotline, my problem is solved.
The model : RBLDFR can only be updated to the version : RouterOS 6.48.6 Long Term.
The more recent firmware does not seem to be compatible.
Sincerely,
This subject is therefore resolved and therefore closed