My MR600 doesn't work. While it is able to get IP/DNS settings from my ISP (SMART) it is unable to provide data service and always gets disconnected.

Tried out the following:

- Confirmed SIM is working since it works fine with my mobile phone.
- Tried out the different APNs available from the provider (smartlte, smartbro, internet) nothing works.
- Also tried out the 8.8.8.8 / 8.8.4.4 DNS settings in LAN management
- Upgraded using the recommended firmware and the beta firmware

I am unable to download the updated ISP file for SMART (can someone please provide the link ?)

Please see screenshots of errors that i encountered and status of my network.

1    2021-03-08 20:26:09    4G    Information    ERROR: Verbose Call end reason = 2001, type = 3.
2    2021-03-08 20:26:09    4G    Information    ERROR: Call end reason = 3.
3    2021-03-08 20:26:09    4G    Information    ERROR: 0x0000000E QMI_ERR_CALL_FAILED
4    2021-03-08 20:26:09    4G    Information    ERROR: Bind mux port session 0 failed (0).
5    2021-03-08 20:26:01    4G    Information    USER: Not registered, searching!
6    2021-03-08 20:26:01    4G    Information    USER: The service status is limited.
7    2021-03-08 20:25:57    4G    Information    USER: Now registrat on network 515 3, long_eons SMART short_eons SMART.
8    2021-03-08 20:25:55    4G    Information    USER: Now registrat on network 515 3, long_eons SMART short_eons SMART.