overrides_J508_J538_J718_J721.der.pri for iPad Air (M2, 11-inch, Cellular), iPad Air (M2, 13-inch, Cellular), iPad Pro (M4, 11-inch, Cellular), iPad Pro (M4, 13-inch, Cellular); the release this version is read against has no modem package for them.
Header Dialect Qualcomm PRI Revision 0.2.165
Settings (26) All (26) efs:/data/3gpp (1) efs:/nv/item_files/modem/lte/rrc/efs (1) efs:/nv/item_files/modem/mav (9) efs:/nv/item_files/modem/mmode (3) efs:/nv/item_files/modem/nr5g/RRC (6) nv (3) pri (3) efs:/data/3gpp (1) · 3GPP data dynamic config = show XML, 652 bytes
Per-PLMN data rules, domestic/international roaming PLMN listsefs:/data/3gpp/data_3gpp_dynamic_config.xml efs:/nv/item_files/modem/lte/rrc/efs (1) · LTE feature enable = hex, 32 bytes
LTE RRC capability feature-enable bitmap; bit list unpublishedefs:/nv/item_files/modem/lte/rrc/efs/lte_feature_enable efs:/nv/item_files/modem/mav (9) · drs_ul_check_enabled = 1
Dynamic RAT selection: Apple Dynamic RAT Selection (DRS): picks LTE, NSA or SA from measured throughputefs:/nv/item_files/modem/mav/drs_ul_check_enabled · drs_enable = 1
Dynamic RAT selection: Apple Dynamic RAT Selection (DRS): picks LTE, NSA or SA from measured throughputefs:/nv/item_files/modem/mav/drs_enable · drs_nsa_icon_via_motion = 1
Dynamic RAT selection: Apple Dynamic RAT Selection (DRS): picks LTE, NSA or SA from measured throughputefs:/nv/item_files/modem/mav/drs_nsa_icon_via_motion · drs_starting_rat = 2
Dynamic RAT selection: Apple Dynamic RAT Selection (DRS): picks LTE, NSA or SA from measured throughputefs:/nv/item_files/modem/mav/drs_starting_rat · sa_depri_td_bwp_thresh_val = 30
Smart data mode: Apple SDM: turns NR / SA off or deprioritises SA when it does not pay offefs:/nv/item_files/modem/mav/sa_depri_td_bwp_thresh_val · 5G UW bands = hex, 18 bytes
NR bands that may show the 5G UW / 5G+ icon: uint16 count, 4 uint16 bands, 4 uint16 minimum bandwidths (MHz)efs:/nv/item_files/modem/mav/uwb_nr_band_bw · mav_avoid_pco_for_aging unverified = 1
Apple modem option: Apple-only (Maverick) modem option; undocumentedefs:/nv/item_files/modem/mav/mav_avoid_pco_for_aging · mav_monitor_mm_mb_replace_nr5g_with_nr5guwb = 1
5G icon rule: Status-bar 5G / 5G UW / 5G UC / 5G+ icon override logicefs:/nv/item_files/modem/mav/mav_monitor_mm_mb_replace_nr5g_with_nr5guwb · mav_ignore_high_bw_check unverified = 1
Apple modem option: Apple-only (Maverick) modem option; undocumentedefs:/nv/item_files/modem/mav/mav_ignore_high_bw_check efs:/nv/item_files/modem/mmode (3) · SMS only = 1= On
Register for SMS onlyefs:/nv/item_files/modem/mmode/sms_only · UE usage setting = 1= Data centric
TS 24.301 UE usage settingefs:/nv/item_files/modem/mmode/ue_usage_setting · NR5G disable mode unverified = 0= NR5G enabled
Disables NR5G SA and/or NSAefs:/nv/item_files/modem/mmode/nr5g_disable_mode efs:/nv/item_files/modem/nr5g/RRC (6) · NR band capability = hex, 28 bytes
NR band feature-capability list; proprietary layoutefs:/nv/item_files/modem/nr5g/RRC/cap_feature_band_nr · cap_add_bw = hex, 772 bytes
NR UE capability: NR RRC UE-capability toggleefs:/nv/item_files/modem/nr5g/RRC/cap_add_bw · cap_control_nrca_3x_f_plus_t_band_combos = 168430090x1010101
NR band-combo class control: Enables an NR-CA / NR-DC / MR-DC band-combination class in the UE capabilityefs:/nv/item_files/modem/nr5g/RRC/cap_control_nrca_3x_f_plus_t_band_combos · cap_control_nrca_4x_f_plus_t_band_combos = 657930x10101
NR band-combo class control: Enables an NR-CA / NR-DC / MR-DC band-combination class in the UE capabilityefs:/nv/item_files/modem/nr5g/RRC/cap_control_nrca_4x_f_plus_t_band_combos · cap_control_nrca_f_plus_f_band_combos = 257
NR band-combo class control: Enables an NR-CA / NR-DC / MR-DC band-combination class in the UE capabilityefs:/nv/item_files/modem/nr5g/RRC/cap_control_nrca_f_plus_f_band_combos · NR TDD+FDD combo control = 7
Enables NR-CA/NR-DC TDD+FDD band-combo classesefs:/nv/item_files/modem/nr5g/RRC/cap_control_t_plus_f_band_combos nv (3) · Disable CM Call Type = 515
nv:5280 · PRI revision = 10813952= 0.2.165 0xa50200
Packed PRI Revision headernv:62005 · AAGPS Positioning Modes Supported = 1
nv:1920 pri (3) · Legacy NV item list = show list, 35 entries
Legacy NV items the modem may take from this file; with a value here: 1920, 5280, 62005.pri:nv-list · NV path schema index = show list, 308 entries
308 NV paths the PRI format knows (MAVZ); not overrides.pri:schema · pri:9fa710 = 178
Unidentified field, 1 time, 2 bytes: small binary blob that precedes the NV item list. 
TELUS
iPad Air (M2, 11-inch, Cellular), iPad Air (M2, 13-inch, Cellular), iPad Pro (M4, 11-inch, Cellular), iPad Pro (M4, 13-inch, Cellular)