getprop("ro.product.device") == "px30_evb" || abort("E3004: This package is for \"px30_evb\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: rockchip/px30_evb/px30_evb:8.1.0/OPM8.190605.003/141952:userdebug/test-keys");
ui_print("Target: rockchip/px30_evb/px30_evb:8.1.0/OPM8.190605.003/162123:userdebug/test-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "rockchip/px30_evb/px30_evb:8.1.0/OPM8.190605.003/141952:userdebug/test-keys" ||
    getprop("ro.build.fingerprint") == "rockchip/px30_evb/px30_evb:8.1.0/OPM8.190605.003/162123:userdebug/test-keys" ||
    abort("E3001: Package expects build fingerprint of rockchip/px30_evb/px30_evb:8.1.0/OPM8.190605.003/141952:userdebug/test-keys or rockchip/px30_evb/px30_evb:8.1.0/OPM8.190605.003/162123:userdebug/test-keys; this device has " + getprop("ro.build.fingerprint") + ".");
apply_patch_check("EMMC:/dev/block/by-name/boot:24614912:69639c3a04e8fb1462e78b2710c61eabcedac01c:24614912:0d61a8e5c25370ddc3e18a817ef5e8dbf64b541f") || abort("E3005: \"EMMC:/dev/block/by-name/boot:24614912:69639c3a04e8fb1462e78b2710c61eabcedac01c:24614912:0d61a8e5c25370ddc3e18a817ef5e8dbf64b541f\" has unexpected contents.");
apply_patch_space(218103808) || abort("E3006: Not enough free space on /cache to apply patches.");
if (range_sha1("/dev/block/by-name/system", "30,1,203,214,379,6262,32770,32958,98306,98494,131073,139264,163842,164030,174327,175518,177538,177588,187445,187469,191223,191524,229378,229566,294914,295102,385228,387072,390122,390129,393216") == "000fcfbbf09c839342e837e8ac17be32f4ace942" || block_image_verify("/dev/block/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/by-name/system");
ifelse (block_image_recover("/dev/block/by-name/system", "30,1,203,214,379,6262,32770,32958,98306,98494,131073,139264,163842,164030,174327,175518,177538,177588,187445,187469,191223,191524,229378,229566,294914,295102,385228,387072,390122,390129,393216") && block_image_verify("/dev/block/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/by-name/vendor", "20,1,53,55,96,3079,32770,32817,32818,36913,62023,62253,62254,62257,62766,62767,93866,96760,97524,97531,98304") == "b31c6c8b709f461195cc040064fdf1f6c1993eab" || block_image_verify("/dev/block/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/by-name/vendor");
ifelse (block_image_recover("/dev/block/by-name/vendor", "20,1,53,55,96,3079,32770,32817,32818,36913,62023,62253,62254,62257,62766,62767,93866,96760,97524,97531,98304") && block_image_verify("/dev/block/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;
if (range_sha1("/dev/block/by-name/oem", "14,1,36,37,39,2053,11987,32768,32770,32801,32802,64504,65014,65021,65536") == "d2dc7e13f479f110f9e924e72aff08dca2d7414f" || block_image_verify("/dev/block/by-name/oem", package_extract_file("oem.transfer.list"), "oem.new.dat", "oem.patch.dat")) then
ui_print("Verified oem image...");
else
check_first_block("/dev/block/by-name/oem");
ifelse (block_image_recover("/dev/block/by-name/oem", "14,1,36,37,39,2053,11987,32768,32770,32801,32802,64504,65014,65021,65536") && block_image_verify("/dev/block/by-name/oem", package_extract_file("oem.transfer.list"), "oem.new.dat", "oem.patch.dat"), ui_print("oem recovered successfully."), abort("E2004: oem partition fails to recover"));
endif;

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

ui_print("Patching system image after verification.");
show_progress(0.800000, 0);
block_image_update("/dev/block/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.");
show_progress(0.100000, 0);
block_image_update("/dev/block/by-name/vendor", package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");
ui_print("Patching oem image after verification.");
show_progress(0.100000, 0);
block_image_update("/dev/block/by-name/oem", package_extract_file("oem.transfer.list"), "oem.new.dat", "oem.patch.dat") ||
  abort("E2001: Failed to update oem image.");
ui_print("Patching boot image...");
show_progress(0.100000, 10);
apply_patch("EMMC:/dev/block/by-name/boot:24614912:69639c3a04e8fb1462e78b2710c61eabcedac01c:24614912:0d61a8e5c25370ddc3e18a817ef5e8dbf64b541f",
            "-", 0d61a8e5c25370ddc3e18a817ef5e8dbf64b541f, 24614912,
            69639c3a04e8fb1462e78b2710c61eabcedac01c,
            package_extract_file("patch/boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/by-name/boot:24614912:69639c3a04e8fb1462e78b2710c61eabcedac01c:24614912:0d61a8e5c25370ddc3e18a817ef5e8dbf64b541f");
ui_print("Writing uboot loader img...");
package_extract_file("uboot.img", "/dev/block/by-name/uboot");
set_progress(1.000000);
