BG77 PSM on T-Mobile


Has anyone had trouble getting into PSM on Quectel BG77?

I have had 100% success getting into PSM on AT&T, though after some help with some settings needed for this to happen e.g. AT+QCFGEXT=“attm2mfeat”,1 is needed.

But on T-Mobile I’ve had no success at all getting into PSM and I am wondering if there is any similar command or some other requirement that I am missing.

Or could the PSM settings have limitations on the timings on T-Mobile? I have set 10hour/10second sleep/wake cycle and it works fine on AT&T.



Are you sure the T-MO SIM support PSM? Think T-MO has no similar command.
And can you please check Mobile hotspot if enabled?