I've not tried this .246 FXZ, however the FXZ's that srgntmajor posted for .902 and before had the issue of the FXZ wiping the internal sdcard partition, and in reviewing the XML of this .246 FXZ I notinced the same commands in there again, why? I have no clue.
anyways, that being said, here's the line that you need to omit
before:
<?xml version="1.0" encoding="UTF-8"?>
<flashing>
<header>
<phone_model model="TARGA" />
<software_version version="6.7.246.XT875" />
<interfaces>
<interface name="AP" />
</interfaces>
</header>
<steps interface="AP">
<step operation="flash" partition="mbm" filename="allow-mbmloader-flashing-mbm.bin" MD5="4005a0844f1eb65c6c0647582ed8799f" />
<step operation="reboot-bootloader" />
<step operation="flash" partition="mbmloader" filename="mbmloader.bin" MD5="8a4e7c3077c3ca44b28598825e7fc814" />
<step operation="flash" partition="mbm" filename="mbm.bin" MD5="894ae6a93f2d54379f53dd723d7a87aa" />
<step operation="reboot-bootloader" />
<step operation="flash" partition="cdt.bin" filename="cdt.bin" MD5="89b3083dec978bb1d2abe391efe5a539" />
<step operation="erase" partition="cache" />
<step operation="erase" partition="userdata" />
<step operation="erase" partition="emstorage" />
<step operation="flash" partition="logo.bin" filename="logo.bin" MD5="cd111cc7b675e62a7d85a50632fb88e8" />
<step operation="flash" partition="ebr" filename="ebr" MD5="ac1e45d0248f3c5b7df45c4933143d8a" />
<step operation="flash" partition="mbr" filename="mbr" MD5="65b3508912dcb885c4b936232161d546" />
<step operation="flash" partition="devtree" filename="device_tree.bin" MD5="36224e365ced7545bf744fdf473e11cd" />
<step operation="flash" partition="system" filename="system.img" MD5="5e9ea7fcb6c8011e10b2fe0e471a7a44" />
<step operation="flash" partition="boot" filename="boot.img" MD5="0e79a534a77f55c6443c3c3a40c93afa" />
<step operation="flash" partition="recovery" filename="recovery.img" MD5="4a3669f7ed7293427ab2ac4a4ea7bc9f" />
<step operation="flash" partition="cdrom" filename="cdrom" MD5="c5978566b257f89474b316eb5a6b208a" />
<step operation="flash" partition="preinstall" filename="preinstall.img" MD5="462213f22c3100bc10d2e4032e3d8671" />
<step operation="flash" partition="emstorage" filename="emstorage.img" MD5="4fa5e1dbdeff60f905b321abe267403e" />
<step operation="flash" partition="webtop" filename="vendor.img" MD5="460769c040075ae5bc27c9cf7104f3f3" />
<step operation="flash" partition="radio" filename="radio.img" MD5="234f0c624d669a0debb5fa0dd13e7229" />
</steps>
</flashing>
after:
<?xml version="1.0" encoding="UTF-8"?>
<flashing>
<header>
<phone_model model="TARGA" />
<software_version version="6.7.246.XT875" />
<interfaces>
<interface name="AP" />
</interfaces>
</header>
<steps interface="AP">
<step operation="flash" partition="mbm" filename="allow-mbmloader-flashing-mbm.bin" MD5="4005a0844f1eb65c6c0647582ed8799f" />
<step operation="reboot-bootloader" />
<step operation="flash" partition="mbmloader" filename="mbmloader.bin" MD5="8a4e7c3077c3ca44b28598825e7fc814" />
<step operation="flash" partition="mbm" filename="mbm.bin" MD5="894ae6a93f2d54379f53dd723d7a87aa" />
<step operation="reboot-bootloader" />
<step operation="flash" partition="cdt.bin" filename="cdt.bin" MD5="89b3083dec978bb1d2abe391efe5a539" />
<step operation="erase" partition="cache" />
<step operation="erase" partition="userdata" />
<step operation="flash" partition="logo.bin" filename="logo.bin" MD5="cd111cc7b675e62a7d85a50632fb88e8" />
<step operation="flash" partition="ebr" filename="ebr" MD5="ac1e45d0248f3c5b7df45c4933143d8a" />
<step operation="flash" partition="mbr" filename="mbr" MD5="65b3508912dcb885c4b936232161d546" />
<step operation="flash" partition="devtree" filename="device_tree.bin" MD5="36224e365ced7545bf744fdf473e11cd" />
<step operation="flash" partition="system" filename="system.img" MD5="5e9ea7fcb6c8011e10b2fe0e471a7a44" />
<step operation="flash" partition="boot" filename="boot.img" MD5="0e79a534a77f55c6443c3c3a40c93afa" />
<step operation="flash" partition="recovery" filename="recovery.img" MD5="4a3669f7ed7293427ab2ac4a4ea7bc9f" />
<step operation="flash" partition="cdrom" filename="cdrom" MD5="c5978566b257f89474b316eb5a6b208a" />
<step operation="flash" partition="preinstall" filename="preinstall.img" MD5="462213f22c3100bc10d2e4032e3d8671" />
<step operation="flash" partition="webtop" filename="vendor.img" MD5="460769c040075ae5bc27c9cf7104f3f3" />
<step operation="flash" partition="radio" filename="radio.img" MD5="234f0c624d669a0debb5fa0dd13e7229" />
</steps>
</flashing>