matejsemancik · October 25, 2025 12:15 · HridoyHazard · Oct 25, 2025
diff --git a/hook.js b/hook.js
 Java.perform(function () {

    const versionName = 'firmware.bin';
    const changelog = 'Force upgrade to global firmware.';
    const firmwareUrl = 'https://files.catbox.moe/...';
    const md5 = 'md5HashOfFirmwareFile';

    let CheckUpdateUtil = Java.use("com.mi.fitness.checkupdate.util.CheckUpdateUtil");
    CheckUpdateUtil["compareFirmwareVersion2"].implementation = function (latestVersion, currentVersion) {
        console.log(`CheckUpdateUtil.compareFirmwareVersion2 is called: latestVersion=${latestVersion}, currentVersion=${currentVersion}`);
        return 1;
    };

    let LatestVersion = Java.use("com.mi.fitness.checkupdate.model.LatestVersion");
    LatestVersion["getVersion"].implementation = function () {
        console.log(`LatestVersion.getVersion is called`);
        return versionName;
    };

    LatestVersion["getChangeLog"].implementation = function () {
        console.log(`LatestVersion.getChangeLog is called`);
        return changelog;
    };

    LatestVersion["getUrl"].implementation = function () {
        console.log(`LatestVersion.getUrl is called`);
        return firmwareUrl;
    };

    LatestVersion["getMD5"].implementation = function () {
        console.log(`LatestVersion.getMD5 is called`);
        return md5;
    };

    LatestVersion["getMd5"].implementation = function () {
        console.log(`LatestVersion.getMd5 is called`);
        return md5;
    };

    LatestVersion["getFullPackageMD5"].implementation = function () {
        console.log(`LatestVersion.getMd5 is called`);
        return md5;
    };

    let AnonymousClass2 = Java.use("com.mi.fitness.checkupdate.ui.bluetooth.BluetoothUpgradeViewModel$downLoadFirmWareAndUpdate$1$1$2");
    AnonymousClass2["invoke"].overload('java.lang.String').implementation = function (it) {
        console.log(`AnonymousClass2.invoke2 is called: it=${it}`);
        this["invoke"](it);
    };
 })
diff --git a/mi_fitness_fw_hack.md b/mi_fitness_fw_hack.md
	Java.perform(function () {

	const versionName = 'firmware.bin';
	const changelog = 'Force upgrade to global firmware.';
	const firmwareUrl = 'https://files.catbox.moe/...';
	const md5 = 'md5HashOfFirmwareFile';

	let CheckUpdateUtil = Java.use("com.mi.fitness.checkupdate.util.CheckUpdateUtil");
	CheckUpdateUtil["compareFirmwareVersion2"].implementation = function (latestVersion, currentVersion) {
	console.log(`CheckUpdateUtil.compareFirmwareVersion2 is called: latestVersion=${latestVersion}, currentVersion=${currentVersion}`);
	return 1;
	};

	let LatestVersion = Java.use("com.mi.fitness.checkupdate.model.LatestVersion");
	LatestVersion["getVersion"].implementation = function () {
	console.log(`LatestVersion.getVersion is called`);
	return versionName;
	};

	LatestVersion["getChangeLog"].implementation = function () {
	console.log(`LatestVersion.getChangeLog is called`);
	return changelog;
	};

	LatestVersion["getUrl"].implementation = function () {
	console.log(`LatestVersion.getUrl is called`);
	return firmwareUrl;
	};

	LatestVersion["getMD5"].implementation = function () {
	console.log(`LatestVersion.getMD5 is called`);
	return md5;
	};

	LatestVersion["getMd5"].implementation = function () {
	console.log(`LatestVersion.getMd5 is called`);
	return md5;
	};

	LatestVersion["getFullPackageMD5"].implementation = function () {
	console.log(`LatestVersion.getMd5 is called`);
	return md5;
	};

	let AnonymousClass2 = Java.use("com.mi.fitness.checkupdate.ui.bluetooth.BluetoothUpgradeViewModel$downLoadFirmWareAndUpdate$1$1$2");
	AnonymousClass2["invoke"].overload('java.lang.String').implementation = function (it) {
	console.log(`AnonymousClass2.invoke2 is called: it=${it}`);
	this["invoke"](it);
	};
	})
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