Hi,

I am new to the forum. Nice to meet everyone.I just purchased a MR6400 prior to my travel in coming 4 days.

The device does not detect SIM no matter what I try. I have tried a lot of things! No specific error, it just does not detect any SIM card. The following diagnostics done:

1. No visible physical damage
2. Reboot/Resets
3. Checked with multiple SIMs from different providers (AirTel and JioFi) (that were working on multiple other 3G/4G phones)
4. SIM has no PIN lock
5. SIMs are nano sim with micro adapter frame and sticker
6. In Wireless router mode with ethernet WAN, it works fine
7. Firmware says latest
8. NTP and time is set

Debug log level system logs (mac scrubbed):

2018-10-01 05:30:23 [5] 4G: init LTE module, set flowstat [enableDataLimit 0, enablePaymentDay 0, paymentDay 1, limitation 0, warningPercent 90]
2018-10-01 05:30:23 [5] 4G: LTE Module: profile num [1], default profile [1], active profile [0]
2018-10-01 05:30:23 [5] 4G: DM: profile num [0], default profile [0], active profile [0]
2018-10-01 05:30:26 [5] System: Enable IPv4 SPI Firewall
2018-10-01 05:30:26 [5] System: Enable IPv6 SPI Firewall
2018-10-01 05:30:38 [6] System: Device(XX:XX:XX:XX:XX:1C) joins in 2.4G Wlan
2018-10-01 05:30:40 [5] DHCPD: Recv REQUEST from XX:XX:XX:XX:XX:1C
2018-10-01 05:30:40 [5] DHCPD: Send ACK to 192.168.1.100
2018-10-01 05:30:40 [5] DHCPD: Recv REQUEST from XX:XX:XX:XX:XX:1C
2018-10-01 05:30:40 [5] DHCPD: Send ACK to 192.168.1.100
2018-10-01 05:30:46 [6] System: User(Mac:XX:XX:XX:XX:XX:1C;IP:192.168.1.100) logs in.

Diagnostic Report: