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Enable FR1+FR2 NR-DC on X65 modems with MPSS.DE.1.0 baseband firmware or newer:

Confirmed working with the following devices:

Devices with NR-DC enabled out of the box by the OEM:

Note: Enabling NR-DC depends on the presence of FR2 SA NR-CA combos in the 0xB826 packet, see Link

How to enable NR-DC

Step 1: Launch EFS explorer

Launch QPST with your device in diag mode. Then, open the EFS explorer.

Step 2: Upload the NV item files for NR-DC

Navigate to /nv/item_files/modem/mmode/

Right click and “Copy item file from PC”, do not drag or drop.

List of NV item files:

/nv/item_files/modem/mmode/nrdc_mode set to 0x01

/nv/item_files/modem/mmode/nr5g_nrdc_band_pref set to match your existing nr_band_pref

If you don’t have an existing nr_band_pref file to copy from, an example nr5g_nrdc_band_pref with all current 3GPP NR bands (bit mask) enabled is provided in the download below.

For dual SIM devices, also copy over the files suffixed by _Subscription01

Download from here