diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 5ec25db22a..abee1f191e 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -1,37 +1,92 @@
--optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
--optimizationpasses 5
 -allowaccessmodification
 
-# Preserve third-party names for reflection while allowing shrinking and optimization.
--keep,allowshrinking,allowoptimization class !one.mixin.android.**,!androidx.**,!com.yalantis.ucrop.**,** { *; }
+# Play requires >= 25% obfuscation, optimization, and shrinking (DEX > 10 MB).
+# Do not use `-keep class x.** { *; }` without allow* unless the name is a
+# runtime identifier (SPI, JNI, or persisted Java serialization).
+
+# Gson/Room models that still use source field names as JSON/column keys.
+-keepclassmembers,allowoptimization class one.mixin.android.api.**,
+                         one.mixin.android.vo.**,
+                         one.mixin.android.websocket.**,
+                         one.mixin.android.db.**,
+                         one.mixin.android.crypto.**,
+                         one.mixin.android.web3.**,
+                         one.mixin.android.tip.**,
+                         one.mixin.android.media.**,
+                         one.mixin.android.webrtc.** {
+    !transient !static <fields>;
+}
+-keepclassmembers,allowoptimization,allowobfuscation class one.mixin.android.api.**,
+                         one.mixin.android.vo.**,
+                         one.mixin.android.websocket.**,
+                         one.mixin.android.db.**,
+                         one.mixin.android.crypto.**,
+                         one.mixin.android.web3.**,
+                         one.mixin.android.tip.**,
+                         one.mixin.android.media.**,
+                         one.mixin.android.webrtc.**,
+                         one.mixin.android.ui.web.**,
+                         one.mixin.android.ui.wallet.**,
+                         one.mixin.android.ui.landing.**,
+                         one.mixin.android.ui.transfer.** {
+    <init>(...);
+}
 
-# prevent multi dex caused NoSuchProviderException
--keep class org.whispersystems.** { *; }
+# JSON keys come from the annotation, so field names may be renamed.
+-keepclassmembers,allowobfuscation class * {
+    @com.google.gson.annotations.SerializedName <fields>;
+}
 
-# Keep app types and members reachable while allowing optimization and obfuscation.
--keep,allowoptimization,allowobfuscation class one.mixin.android.** { *; }
+# R8 full mode can replace reflectively constructed model types with null.
+-keep,allowoptimization,allowobfuscation class one.mixin.android.api.**
+-keep,allowoptimization,allowobfuscation class one.mixin.android.vo.**
+-keep,allowoptimization,allowobfuscation class one.mixin.android.websocket.**
+-keep,allowoptimization,allowobfuscation class one.mixin.android.crypto.**
+-keep,allowoptimization,allowobfuscation class one.mixin.android.web3.**
+-keep,allowoptimization,allowobfuscation class one.mixin.android.tip.**
+-keep,allowoptimization,allowobfuscation class one.mixin.android.media.**
+-keep,allowoptimization,allowobfuscation class one.mixin.android.webrtc.**
 
 -keep class com.google.android.gms.internal.mlkit_entity_extraction.** extends java.util.Random { *; }
 
-# Gson still relies on unannotated app fields in API, websocket, database, and cache models.
--keepclassmembers class one.mixin.android.** {
-    !transient !static <fields>;
+# Java serialization stores class names and field names across app updates.
+-keep,allowoptimization class one.mixin.android.** implements java.io.Serializable
+-keepclassmembers,allowoptimization class one.mixin.android.** implements java.io.Serializable {
+    static final long serialVersionUID;
+    !transient <fields>;
 }
 
-# Persisted jobs and payloads must remain Java-serialization compatible across updates.
--keep class one.mixin.android.** implements java.io.Serializable { *; }
+# JobQueue persists jobs by class name and serializes non-transient fields.
+-keep class one.mixin.android.job.**
+-keepclassmembers,allowoptimization class one.mixin.android.job.** {
+    static final long serialVersionUID;
+    !transient <fields>;
+}
+-keepclassmembers,allowoptimization,allowobfuscation class one.mixin.android.job.** {
+    <init>(...);
+}
+-keep class com.birbit.android.jobqueue.Job
+-keepclassmembers class com.birbit.android.jobqueue.Job {
+    static final long serialVersionUID;
+    !transient <fields>;
+}
+-keep,allowoptimization,allowobfuscation class com.birbit.android.jobqueue.messaging.message.** {
+    public <init>();
+}
 
 # These fragment arguments persist nested type names in saved state.
 -keepnames class one.mixin.android.ui.wallet.ImportKeyBottomSheetDialogFragment$PopupType$*
 -keepnames class one.mixin.android.ui.home.reminder.ReminderBottomSheetDialogFragment$PopupType$*
 
--keep class io.jsonwebtoken.** { *; }
+# Protocol strings use Enum.name; constant names must stay.
+-keepclassmembers enum one.mixin.android.** {
+    <fields>;
+}
 
-# webrtc
+# webrtc JNI looks up classes by their original names.
 -dontwarn org.webrtc.NetworkMonitorAutoDetect
 -dontwarn android.net.Network
 -keep class org.webrtc.** { *; }
-
 -keep class org.jni_zero.** { *; }
 -dontwarn org.jni_zero.**
 
@@ -50,8 +105,6 @@
 
 -dontwarn sun.net.spi.nameservice.**
 
--keep class com.birbit.android.jobqueue.** { *; }
-
 -keepclassmembers enum * {
     public static **[] values();
     public static ** valueOf(java.lang.String);
@@ -63,16 +116,18 @@
 -keep,allowobfuscation,allowshrinking class io.reactivex.Observable
 -keep,allowobfuscation,allowshrinking class io.reactivex.Completable
 
-
-# https://r8.googlesource.com/r8/+/refs/heads/master/compatibility-faq.md#r8-full-mode
-
 -keepattributes Signature
--keep class * extends com.google.gson.reflect.TypeToken
 
-# web3j
--keep class org.web3j.protocol.** { *; }
--keep class org.web3j.abi.** { *; }
--keep class org.web3j.crypto.** { *; }
+# R8 full mode drops TypeToken generic signatures unless the subclass is kept.
+-keep,allowobfuscation,allowshrinking class com.google.gson.reflect.TypeToken { *; }
+-keep,allowobfuscation,allowshrinking class * extends com.google.gson.reflect.TypeToken
+
+# web3j Type.getTypeAsString() uses the datatype class simple name.
+-keep class org.web3j.abi.datatypes.** { *; }
+-keep class org.web3j.abi.TypeReference { *; }
+-keep class * extends org.web3j.abi.TypeReference
+-keep,allowoptimization,allowobfuscation,allowshrinking class org.web3j.crypto.** { *; }
+-keep,allowoptimization,allowobfuscation,allowshrinking class org.web3j.protocol.** { *; }
 -dontwarn org.web3j.crypto.**
 -dontwarn jnr.unixsocket.**
 -dontwarn org.web3j.protocol.ipc.**
@@ -80,13 +135,15 @@
 -dontwarn org.web3j.protocol.websocket.**
 
 -dontwarn com.fasterxml.jackson.databind.**
--keep class com.fasterxml.jackson.core.** { *; }
--keep class com.fasterxml.jackson.databind.** { *; }
--keep class com.fasterxml.jackson.annotation.** { *; }
+-keep,allowoptimization,allowobfuscation,allowshrinking class com.fasterxml.jackson.** { *; }
 #-dontwarn java.lang.SafeVarargs
 -dontwarn org.slf4j.**
 
--keep public class com.reown.walletkit.** { *; }
+# JJWT discovers implementations through META-INF/services.
+-keep class io.jsonwebtoken.impl.** { *; }
+-keep class io.jsonwebtoken.orgjson.** { *; }
+
+-keep,allowoptimization,allowobfuscation,allowshrinking class com.reown.** { *; }
 
 -dontwarn com.sun.jna.**
 -keep class com.sun.jna.** { *; }
@@ -94,9 +151,18 @@
 -dontwarn uniffi.**
 -keep class uniffi.** { *; }
 
+# Native Curve25519 providers are loaded by class name.
+-keep class org.whispersystems.curve25519.NativeCurve25519Provider { *; }
+-keep class org.whispersystems.curve25519.JavaCurve25519Provider { *; }
+-keep class org.whispersystems.curve25519.OpportunisticCurve25519Provider { *; }
+-keep,allowoptimization,allowobfuscation,allowshrinking class org.whispersystems.libsignal.** { *; }
+
 -dontwarn groovy.lang.GroovyShell
 
 -dontwarn com.yalantis.ucrop**
 
 -dontwarn com.appsflyer.**
--keep class kotlin.jvm.internal.** { *; }
+-keep class com.appsflyer.** { *; }
+-keep class com.android.installreferrer.** { *; }
+
+-keep,allowoptimization,allowobfuscation,allowshrinking class com.checkout.** { *; }
diff --git a/app/src/main/java/one/mixin/android/MixinApplication.kt b/app/src/main/java/one/mixin/android/MixinApplication.kt
index 33dc41dc0f..e908a19a47 100644
--- a/app/src/main/java/one/mixin/android/MixinApplication.kt
+++ b/app/src/main/java/one/mixin/android/MixinApplication.kt
@@ -87,6 +87,7 @@ import one.mixin.android.vo.CallStateLiveData
 import one.mixin.android.webrtc.GroupCallService
 import one.mixin.android.webrtc.VoiceCallService
 import one.mixin.android.webrtc.disconnect
+import org.bitcoinj.crypto.MnemonicCode
 import org.whispersystems.libsignal.logging.SignalProtocolLoggerProvider
 import timber.log.Timber
 import java.util.concurrent.atomic.AtomicBoolean
@@ -160,6 +161,7 @@ open class MixinApplication :
 
     override fun onCreate() {
         super.onCreate()
+        initMnemonicCode()
         applicationScope = getAppScope()
         init()
         registerActivityLifecycleCallbacks(this)
@@ -189,6 +191,17 @@ open class MixinApplication :
         Session.getAccount()?.let(ThirdPartyUserIdentity::setUser)
     }
 
+    private fun initMnemonicCode() {
+        if (MnemonicCode.INSTANCE != null) return
+        val wordList = Thread.currentThread().contextClassLoader
+            ?.getResourceAsStream("en-mnemonic-word-list.txt")
+            ?: error("Missing BIP39 English word list")
+        MnemonicCode.INSTANCE = MnemonicCode(
+            wordList,
+            "ad90bf3beb7b0eb7e5acd74727dc0da96e0a280a258354e7293fb7e211ac03db",
+        )
+    }
+
     private fun initBugsnag() {
         val config = BugsnagConfiguration.load(this)
         config.enabledErrorTypes.anrs = true
diff --git a/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeCache.kt b/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeCache.kt
index f027f31331..0d2efdfb5d 100644
--- a/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeCache.kt
+++ b/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeCache.kt
@@ -1,6 +1,7 @@
 package one.mixin.android.ui.wallet.home
 
 import android.content.SharedPreferences
+import com.google.gson.JsonParser
 import com.google.gson.annotations.SerializedName
 import one.mixin.android.db.web3.vo.Web3TokenItem
 import one.mixin.android.db.web3.vo.Web3TransactionItem
@@ -10,6 +11,7 @@ import one.mixin.android.vo.SnapshotItem
 import one.mixin.android.vo.safe.TokenItem
 
 private const val PREF_WALLET_HOME_CACHE_PREFIX = "pref_wallet_home_cache"
+private val EARN_ACCOUNT_CACHE_FIELDS = arrayOf("assetId", "assetSymbol", "iconUrl", "balanceUsd", "earningsUsd")
 
 data class WalletHomeCache(
     @SerializedName("walletType")
@@ -102,9 +104,24 @@ fun SharedPreferences.getWalletHomeCacheState(
 fun SharedPreferences.getWalletHomeCache(
     key: String,
 ): WalletHomeCache? =
+    getString(key, null).parseWalletHomeCache()
+
+internal fun String?.parseWalletHomeCache(): WalletHomeCache? =
     runCatching {
-        getString(key, null)
-            ?.let { GsonHelper.customGson.fromJson(it, WalletHomeCache::class.java) }
+        val root = JsonParser.parseString(this).asJsonObject
+        root.getAsJsonArray("earnAccounts")?.let { accounts ->
+            for (index in accounts.size() - 1 downTo 0) {
+                val account = accounts[index]
+                if (!account.isJsonObject || EARN_ACCOUNT_CACHE_FIELDS.any { field ->
+                        val value = account.asJsonObject.get(field)
+                        value == null || value.isJsonNull
+                    }
+                ) {
+                    accounts.remove(index)
+                }
+            }
+        }
+        GsonHelper.customGson.fromJson(root, WalletHomeCache::class.java)
     }.getOrNull()
 
 fun SharedPreferences.putWalletHomeCache(
diff --git a/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeEarnAccount.kt b/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeEarnAccount.kt
index 8b1d8985d7..28ae13822e 100644
--- a/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeEarnAccount.kt
+++ b/app/src/main/java/one/mixin/android/ui/wallet/home/WalletHomeEarnAccount.kt
@@ -1,5 +1,6 @@
 package one.mixin.android.ui.wallet.home
 
+import com.google.gson.annotations.SerializedName
 import one.mixin.android.api.response.EarnAccountSummary
 import one.mixin.android.api.response.EarnProduct
 import one.mixin.android.extension.numberFormat2
@@ -7,11 +8,17 @@ import one.mixin.android.vo.safe.TokenItem
 import java.math.BigDecimal
 
 data class WalletHomeEarnAccount(
+    @SerializedName("assetId")
     val assetId: String,
+    @SerializedName("assetSymbol")
     val assetSymbol: String,
+    @SerializedName("iconUrl")
     val iconUrl: String,
+    @SerializedName("balanceUsd")
     val balanceUsd: BigDecimal,
+    @SerializedName("earningsUsd")
     val earningsUsd: BigDecimal,
+    @SerializedName("apyText")
     val apyText: String?,
 ) {
     val balanceAmountText: String
diff --git a/app/src/main/res/values-ko/strings.xml b/app/src/main/res/values-ko/strings.xml
index f46af19384..1240c4fda8 100644
--- a/app/src/main/res/values-ko/strings.xml
+++ b/app/src/main/res/values-ko/strings.xml
@@ -2181,16 +2181,6 @@
     <string name="delete_common_wallet_description">지갑을 제거하기 전에 복구 문구나 개인 키를 적어 두었는지 확인하세요. 그렇지 않으면 지갑을 복구할 수 없습니다.</string>
     <string name="delete_watch_wallet_description">이 지갑은 보기 전용 지갑이므로 삭제해도 자산에 영향을 미치지 않습니다.</string>
     <string name="words">%1$d 단어</string>
-    <string name="other_words">12단어 또는 24단어</string>
-    <string name="mnemonic_12_24_instruction_title">12단어 또는 24단어 니모닉 지갑을 사용하려면 다음 단계를 따르세요.</string>
-    <string name="mnemonic_12_24_step_1">Mixin 계정을 등록하세요.</string>
-    <string name="mnemonic_12_24_step_2">지갑 목록으로 이동 → 지갑 추가 → 니모닉 가져오기를 선택하세요.</string>
-    <string name="mnemonic_12_24_step_3">가져오기를 완료하려면 12~24단어 니모닉 문구 또는 개인 키를 입력하세요.</string>
-    <string name="mnemonic_12_24_step_4">사용을 시작하세요.</string>
-    <string name="mnemonic_12_24_privacy_info">Mixin 계정을 생성하면 기본적으로 개인정보 지갑이 생성됩니다. 귀하의 잔액, 이체, 거래 및 기타 기능은 기본적으로 개인 정보 보호로 보호됩니다.</string>
-    <string name="mnemonic_12_24_privacy_info_with_link">Mixin 계정을 생성하면 기본적으로 개인정보 지갑이 생성됩니다. 귀하의 잔액, 이체, 거래 및 기타 기능은 기본적으로 %1$s의 개인 정보 보호로 보호됩니다.</string>
-    <string name="create_mixin_account">Mixin 계정 만들기</string>
-    <string name="register_in_15_seconds">15초 안에 등록하세요</string>
     <string name="import_private_key">개인 키 가져오기</string>
     <string name="add_watch_address">감시 주소 추가</string>
     <string name="private_key_hint">개인 키를 입력하세요</string>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 88926174a7..dcfad32764 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -2279,16 +2279,6 @@
     <string name="delete_common_wallet_description">請確保您在刪除錢包之前記下恢復短語或私鑰。否則你將無法找回錢包。</string>
     <string name="delete_watch_wallet_description">這是一個觀察錢包，刪除此錢包不會影響你的資產。</string>
     <string name="words">%1$d 字</string>
-    <string name="other_words">12 或 24 個字</string>
-    <string name="mnemonic_12_24_instruction_title">使用12字或24字助記詞錢包，請依照下列步驟操作：</string>
-    <string name="mnemonic_12_24_step_1">註冊一個Mixin帳號。</string>
-    <string name="mnemonic_12_24_step_2">進入錢包清單→新增錢包→選擇導入助記詞。</string>
-    <string name="mnemonic_12_24_step_3">輸入您的12或24字助記詞或私密金鑰即可完成匯入。</string>
-    <string name="mnemonic_12_24_step_4">開始使用。</string>
-    <string name="mnemonic_12_24_privacy_info">建立Mixin帳號後，會預設產生隱私錢包。您的餘額、轉帳、交易等功能將預設受到隱私保護，</string>
-    <string name="mnemonic_12_24_privacy_info_with_link">建立Mixin帳號後，會預設產生隱私錢包。您的餘額、轉帳、交易等功能將預設為隱私保護，%1$s。</string>
-    <string name="create_mixin_account">建立Mixin帳戶</string>
-    <string name="register_in_15_seconds">15 秒內註冊</string>
     <string name="import_private_key">匯入私鑰</string>
     <string name="add_watch_address">新增觀看地址</string>
     <string name="private_key_hint">輸入您的私鑰</string>
diff --git a/app/src/test/java/one/mixin/android/ui/wallet/home/WalletHomeCashAccountTest.kt b/app/src/test/java/one/mixin/android/ui/wallet/home/WalletHomeCashAccountTest.kt
index 0cbf1b6082..55847caa4c 100644
--- a/app/src/test/java/one/mixin/android/ui/wallet/home/WalletHomeCashAccountTest.kt
+++ b/app/src/test/java/one/mixin/android/ui/wallet/home/WalletHomeCashAccountTest.kt
@@ -8,6 +8,7 @@ import org.junit.Assert.assertEquals
 import org.junit.Assert.assertFalse
 import org.junit.Assert.assertNotNull
 import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
 import org.junit.Test
 import java.math.BigDecimal
 
@@ -156,6 +157,29 @@ class WalletHomeCashAccountTest {
         assertFalse(state.cards.contains(WalletHomeCardType.CASH))
     }
 
+    @Test
+    fun walletHomeCacheDropsIncompleteEarnAccounts() {
+        val json = """
+            {
+              "walletType":"PRIVACY",
+              "fiatTotal":"0.00",
+              "btcTotal":"0.00",
+              "fiatSymbol":"USD",
+              "totalTokenCount":0,
+              "totalTransactionCount":0,
+              "earnAccounts":[
+                {"assetId":"asset-1","assetSymbol":"USD","iconUrl":"","earningsUsd":"0"},
+                {"assetId":"asset-2","assetSymbol":"USD","iconUrl":"","balanceUsd":"1.25","earningsUsd":"0"}
+              ]
+            }
+        """.trimIndent()
+
+        val cache = json.parseWalletHomeCache()
+
+        assertTrue(cache != null)
+        assertEquals(listOf("asset-2"), cache?.toState()?.earnAccounts?.map { it.assetId })
+    }
+
     @Test
     fun walletHomeStateShowsDynamicBannerWhenStillLoading() {
         val banner = WalletHomeBanner(