Cannot Unlock Telnet on MiRouter R4A with ROM 2.28.62

[Coconut-Aero]

It's output seemed like:

(venv) python3 remote_command_execution_vulnerability.py 
Router IP address [press enter for using the default 'miwifi.com']: 
Enter router admin password: ###MYPASSWD###
There two options to provide the files needed for invasion:
   1. Use a local TCP file server runing on random port to provide files in local directory `script_tools`.
   2. Download needed files from remote github repository. (choose this option only if github is accessable inside router device.)
Which option do you prefer? (default: 1)1
****************
router_ip_address: miwifi.com
stok: ###MYSTOK###
file provider: local file server
****************
start uploading config file...
start exec command...
local file server is runing on 0.0.0.0:43881. root='script_tools'
Warning: the process has finished, but seems like ssh connection to the router is not working as expected.
* Maybe your firmware version is not supported, please have a look at https://github.com/acecilia/OpenWRTInvasion/blob/master/README.md#unsupported-routers-and-firmware-versions
* Anyway you can try it with: telnet miwifi.com               

When I bought this router its 2.28.65 and I didn't connect it to the Internet.
I configured manually and flashed 2.28.62.
I can't telnet it or ssh it.
It seems to have a wrong setting of time but I fixed it later.