getprop("ro.product.device") == "cereus" || abort("E3004: This package is for \"cereus\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: xiaomi/cereus/cereus:9/PPR1.180610.011/V10.4.2.0.PCGCNXM:user/release-keys");
ui_print("Target: xiaomi/cereus/cereus:9/PPR1.180610.011/V10.4.3.0.PCGCNXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "xiaomi/cereus/cereus:9/PPR1.180610.011/V10.4.2.0.PCGCNXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "xiaomi/cereus/cereus:9/PPR1.180610.011/V10.4.3.0.PCGCNXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of xiaomi/cereus/cereus:9/PPR1.180610.011/V10.4.2.0.PCGCNXM:user/release-keys or xiaomi/cereus/cereus:9/PPR1.180610.011/V10.4.3.0.PCGCNXM:user/release-keys; this device has " + getprop("ro.build.fingerprint") + ".");
apply_patch_space(214745088) || abort("E3006: Not enough free space on /cache to apply patches.");
apply_patch_check("EMMC:/dev/block/platform/bootdevice/by-name/md1img:56720416:245c94ba02a1ea1929da70cd3081c4fe08f87cf4:56735248:d7fae029ab3ec14b6bc01bee839d7e73e3985b8c", "245c94ba02a1ea1929da70cd3081c4fe08f87cf4", "d7fae029ab3ec14b6bc01bee839d7e73e3985b8c") || abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:56720416:245c94ba02a1ea1929da70cd3081c4fe08f87cf4:56735248:d7fae029ab3ec14b6bc01bee839d7e73e3985b8c\" has unexpected contents.");
apply_patch_space(56735248) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1("/dev/block/platform/bootdevice/by-name/system", "122,1,420,665,22988,27825,27875,28181,28214,29413,32770,32927,32928,33433,54690,54692,54700,54742,54743,54805,54809,55212,55213,55220,55228,55255,55617,56010,56030,56694,65537,66042,98306,98463,98464,98969,129868,131072,131073,137571,161152,163840,163842,163999,164000,167163,171183,173405,173406,181598,183507,183832,183833,184438,184439,188204,196609,197114,229378,229535,229536,230041,262145,262650,294914,295071,295072,295577,298046,302586,327681,328186,338895,339004,339005,339066,339085,339151,339152,339159,339316,339401,339785,340212,340964,342008,342745,343505,360449,360954,382933,383020,383034,383550,383594,383911,383929,384291,385435,385799,386240,387015,387167,387397,393217,393722,425985,426490,458753,459258,491521,492026,524289,524794,557057,557562,583156,622592,622593,644999,655221,655359,655360") == "fd424bd578bd73d4fa5a5088a69e11b2a6915dc1" || block_image_verify("/dev/block/platform/bootdevice/by-name/system", package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat")) then
ui_print("Verified system image...");
else
check_first_block("/dev/block/platform/bootdevice/by-name/system");
ifelse (block_image_recover("/dev/block/platform/bootdevice/by-name/system", "122,1,420,665,22988,27825,27875,28181,28214,29413,32770,32927,32928,33433,54690,54692,54700,54742,54743,54805,54809,55212,55213,55220,55228,55255,55617,56010,56030,56694,65537,66042,98306,98463,98464,98969,129868,131072,131073,137571,161152,163840,163842,163999,164000,167163,171183,173405,173406,181598,183507,183832,183833,184438,184439,188204,196609,197114,229378,229535,229536,230041,262145,262650,294914,295071,295072,295577,298046,302586,327681,328186,338895,339004,339005,339066,339085,339151,339152,339159,339316,339401,339785,340212,340964,342008,342745,343505,360449,360954,382933,383020,383034,383550,383594,383911,383929,384291,385435,385799,386240,387015,387167,387397,393217,393722,425985,426490,458753,459258,491521,492026,524289,524794,557057,557562,583156,622592,622593,644999,655221,655359,655360") && block_image_verify("/dev/block/platform/bootdevice/by-name/system", package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat"), ui_print("system recovered successfully."), abort("E1004: system partition fails to recover"));
endif;
if (range_sha1("/dev/block/platform/bootdevice/by-name/vendor", "20,1,140,555,32770,32817,32818,33323,65537,66042,76039,98304,98306,163840,163842,163889,163890,193485,196553,196607,196608") == "eefde04d1766f398bd14700437639bcc024ae8d5" || block_image_verify("/dev/block/platform/bootdevice/by-name/vendor", package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat")) then
ui_print("Verified vendor image...");
else
check_first_block("/dev/block/platform/bootdevice/by-name/vendor");
ifelse (block_image_recover("/dev/block/platform/bootdevice/by-name/vendor", "20,1,140,555,32770,32817,32818,33323,65537,66042,76039,98304,98306,163840,163842,163889,163890,193485,196553,196607,196608") && block_image_verify("/dev/block/platform/bootdevice/by-name/vendor", package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat"), ui_print("vendor recovered successfully."), abort("E2004: vendor partition fails to recover"));
endif;

# ---- start making changes here ----

ui_print("Installing boot image...");
package_extract_file("boot.img", "/dev/block/platform/bootdevice/by-name/boot");
show_progress(0.600000, 400);
ui_print("Patching system image after verification.");
block_image_update("/dev/block/platform/bootdevice/by-name/system", package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") ||
  abort("E1001: Failed to update system image.");
ui_print("Patching vendor image after verification.");
block_image_update("/dev/block/platform/bootdevice/by-name/vendor", package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");
show_mtupdate_stage("/cache/recovery/last_mtupdate_stage");
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "1") ,
(
ui_print("start to update general image");
package_extract_file("logo.bin", "/dev/block/platform/bootdevice/by-name/logo");
package_extract_file("odmdtbo.img", "/dev/block/platform/bootdevice/by-name/odmdtbo");
ui_print("Patching md1img image...");
show_progress(0.100000, 10);
apply_patch("EMMC:/dev/block/platform/bootdevice/by-name/md1img:56720416:245c94ba02a1ea1929da70cd3081c4fe08f87cf4:56735248:d7fae029ab3ec14b6bc01bee839d7e73e3985b8c",
            "-", d7fae029ab3ec14b6bc01bee839d7e73e3985b8c, 56735248,
            245c94ba02a1ea1929da70cd3081c4fe08f87cf4, package_extract_file("patch/md1img.img.p")) || abort("Failed to apply patch \"patch/md1img.img.p \".");
package_extract_file("spmfw.img", "/dev/block/platform/bootdevice/by-name/spmfw");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "1");
),
ui_print("general images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "3") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "2") then

ui_print("start to update alt loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_2");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee2");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk2");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp2");
assert(set_emmc_writable("/sys/block/mmcblk0boot1/force_ro"),
       package_extract_file("preloader.img", "/dev/block/mmcblk0boot1"));

set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "2");
endif;

switch_active("sspm_1", "sspm_2");
switch_active("tee1", "tee2");
switch_active("lk", "lk2");
switch_active("scp1", "scp2");
switch_active("preloader", "preloader2");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "3");
),
ui_print("alt loder images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "5") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "4") then

ui_print("start to update main loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_1");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee1");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp1");
assert(set_emmc_writable("/sys/block/mmcblk0boot0/force_ro"),
       package_extract_file("preloader.img", "/dev/block/mmcblk0boot0"));

set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "4");
endif;

switch_active("sspm_2", "sspm_1");
switch_active("tee2", "tee1");
switch_active("lk2", "lk");
switch_active("scp2", "scp1");
switch_active("preloader2", "preloader");
),
ui_print("main loader images are already updated");
);
delete("/cache/recovery/last_mtupdate_stage");
package_extract_file("vbmeta.img", "/dev/block/platform/bootdevice/by-name/vbmeta");
set_ota_result_for_dm_verity();
show_progress(0.100000, 2);
