[ZTE Axon 7 Guides, News, & Discussion] djkuz:
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="rpm.mbn" label="rpm" num_partition_sectors="128" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="512.0" sparse="false" start_byte_hex="0x6000" start_sector="6"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="tz.mbn" label="tz" num_partition_sectors="512" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="2048.0" sparse="false" start_byte_hex="0x86000" start_sector="134"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="hyp.mbn" label="hyp" num_partition_sectors="128" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="512.0" sparse="false" start_byte_hex="0x286000" start_sector="646"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="fsg" num_partition_sectors="512" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="2048.0" sparse="false" start_byte_hex="0x306000" start_sector="774"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="sec.dat" label="sec" num_partition_sectors="4" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="16.0" sparse="false" start_byte_hex="0x506000" start_sector="1286"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="pmic.elf" label="pmic" num_partition_sectors="128" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="512.0" sparse="false" start_byte_hex="0x50a000" start_sector="1290"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="NON-HLOS.bin" label="modem" num_partition_sectors="24320" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="97280.0" sparse="false" start_byte_hex="0x58a000" start_sector="1418"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="adspso.bin" label="dsp" num_partition_sectors="4096" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="16384.0" sparse="false" start_byte_hex="0x648a000" start_sector="25738"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="dip" num_partition_sectors="256" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="1024.0" sparse="false" start_byte_hex="0x748a000" start_sector="29834"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="mdtp.img" label="mdtp" num_partition_sectors="8192" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="32768.0" sparse="false" start_byte_hex="0x758a000" start_sector="30090"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="emmc_appsboot.mbn" label="aboot" num_partition_sectors="256" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="1024.0" sparse="false" start_byte_hex="0x958a000" start_sector="38282"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="boot.img" label="boot" num_partition_sectors="16384" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="65536.0" sparse="false" start_byte_hex="0x968a000" start_sector="38538"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="system.img" label="system" num_partition_sectors="1572864" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="6291456.0" sparse="true" start_byte_hex="0xd68a000" start_sector="54922"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="recovery.img" label="recovery" num_partition_sectors="16384" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="65536.0" sparse="false" start_byte_hex="0x18d68a000" start_sector="1627786"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="devinfo" num_partition_sectors="1" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="4.0" sparse="false" start_byte_hex="0x19168a000" start_sector="1644170"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="BTFM.bin" label="bluetooth" num_partition_sectors="256" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="1024.0" sparse="false" start_byte_hex="0x19168b000" start_sector="1644171"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="lksecapp.mbn" label="lksecapp" num_partition_sectors="32" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="128.0" sparse="false" start_byte_hex="0x19178b000" start_sector="1644427"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="keymaster.mbn" label="keymaster" num_partition_sectors="64" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="256.0" sparse="false" start_byte_hex="0x1917ab000" start_sector="1644459"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="cmnlib.mbn" label="cmnlib" num_partition_sectors="64" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="256.0" sparse="false" start_byte_hex="0x1917eb000" start_sector="1644523"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="cmnlib64.mbn" label="cmnlib64" num_partition_sectors="64" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="256.0" sparse="false" start_byte_hex="0x19182b000" start_sector="1644587"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="apdp" num_partition_sectors="64" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="256.0" sparse="false" start_byte_hex="0x19186b000" start_sector="1644651"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="msadp" num_partition_sectors="64" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="256.0" sparse="false" start_byte_hex="0x1918ab000" start_sector="1644715"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="dpo" num_partition_sectors="1" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="4.0" sparse="false" start_byte_hex="0x1918eb000" start_sector="1644779"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="splash.img" label="splash" num_partition_sectors="8356" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="33424.0" sparse="false" start_byte_hex="0x1918ec000" start_sector="1644780"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="echarge.img" label="echarge" num_partition_sectors="10240" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="40960.0" sparse="false" start_byte_hex="0x193990000" start_sector="1653136"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="sti" num_partition_sectors="512" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="2048.0" sparse="false" start_byte_hex="0x196190000" start_sector="1663376"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="" label="last_parti" num_partition_sectors="0" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="0" sparse="false" start_byte_hex="0x196390000" start_sector="1663888"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="gpt_main4.bin" label="PrimaryGPT" num_partition_sectors="6" partofsingleimage="true" physical_partition_number="4" readbackverify="false" size_in_KB="24.0" sparse="false" start_byte_hex="0x0" start_sector="0"/>
<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="gpt_backup4.bin" label="BackupGPT" num_partition_sectors="5" partofsingleimage="true" physical_partition_number="4" readbackverify="false" size_in_KB="20.0" sparse="false" start_byte_hex="(4096*NUM_DISK_SECTORS)-20480." start_sector="NUM_DISK_SECTORS-5."/>

BT (sde16)

<program SECTOR_SIZE_IN_BYTES="4096" file_sector_offset="0" filename="BTFM.bin" label="bluetooth" num_partition_sectors="256" partofsingleimage="false" physical_partition_number="4" readbackverify="false" size_in_KB="1024.0" sparse="false" start_byte_hex="0x19168b000" start_sector="1644171"/>

As you can see, the BT partition size is 1024 kB