Device will not recognize SIM

Been using this device for a number of years with no issues. Long story short the company that I had service through went belly up and I've not been able to use my device on 4G network since.
All it says on the device itself is Delta Force. I was able to find the model number inside the LuCl Master.
Model: ZBT-WG3526
Architecture: MediaTek MT7621 ver:1 eco:3
Firmware Version: LEDE Reboot SNAPSHOT 17.01 21.0324_161220
Kernel Version: 4.4.61
When I look at the 4/5G Info I get this:

"device_model":"Quectel EP06",
"iccid":"NO SIM",

SIM card is installed and I've even pulled that one out and replaced with a different carrier. Nothing seems to help.
This is the memory infromation from the device.

MemTotal:         514252 kB
MemFree:          443520 kB
MemAvailable:     432624 kB
Buffers:            6372 kB
Cached:            19696 kB
SwapCached:            0 kB
Active:            17508 kB
Inactive:          12228 kB
Active(anon):       4604 kB
Inactive(anon):      352 kB
Active(file):      12904 kB
Inactive(file):    11876 kB
Unevictable:           0 kB
Mlocked:               0 kB
HighTotal:        262144 kB
HighFree:         243004 kB
LowTotal:         252108 kB
LowFree:          200516 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:          3700 kB
Mapped:             3736 kB
Shmem:              1288 kB
Slab:              14516 kB
SReclaimable:       3660 kB
SUnreclaim:        10856 kB
KernelStack:         808 kB
PageTables:          600 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:      257124 kB
Committed_AS:      10504 kB
VmallocTotal:    1015800 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB

I've been looking all over the forums and can't find something that will work.
Any Help Is Greatly appreciated.

Are you sure the device isn't sim locked ?

The LEDE version it's running is probably made by the manufacturer, if you want help here, install the image from

Ok I'll give it a go. Thank you!

just make sure you pick the correct version - 16m / 32m flash size.