What could cause "unspecified GPRS error" (error 148) to be returned from AT#GPRS=1?
We see it every now and then and the only way to get it out of that state is to reboot it.
it is a generic GPRS error (in this case during PDP activation) with no specific cause sent as per 3GPP 24.008. Check if AT#CEER can provide more detailed info
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