diff --git a/packages/widget/src/components/widget-app/widget-app.ts b/packages/widget/src/components/widget-app/widget-app.ts
index d46fb578..f4887edf 100644
--- a/packages/widget/src/components/widget-app/widget-app.ts
+++ b/packages/widget/src/components/widget-app/widget-app.ts
@@ -21,10 +21,8 @@ export default class WidgetApp extends WidgetMixin(LitElement) {
 
   async getChainId(): Promise<number | undefined> {
     if (this.walletManager?.evmWallet?.web3Provider) {
-      const chainId = (
-        await this.walletManager?.evmWallet?.web3Provider?.getNetwork()
-      )?.chainId;
-      return chainId;
+      return (await this.walletManager?.evmWallet?.web3Provider?.getNetwork())
+        ?.chainId;
     }
   }
 
@@ -36,7 +34,6 @@ export default class WidgetApp extends WidgetMixin(LitElement) {
       this.requestUpdate();
     });
 
-    // eslint-disable-next-line @typescript-eslint/no-misused-promises
     this.walletManager?.addChainChangedEventListener(async () => {
       this.chainId = (
         await this.walletManager?.evmWallet?.web3Provider?.getNetwork()
@@ -49,24 +46,20 @@ export default class WidgetApp extends WidgetMixin(LitElement) {
 
     // listen to the custom event for network change
     addEventListener('network-change', (event: unknown) => {
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-      const { detail } = event as CustomEvent;
+      const { detail } = event as CustomEvent<string>;
       this.selectedNetworkChainId = Number(detail);
       this.requestUpdate();
     });
 
     addEventListener('amount-selector-change', (event: unknown) => {
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-      const { detail } = event as CustomEvent;
+      const { detail } = event as CustomEvent<string>;
       this.selectedAmount = Number(detail);
       this.requestUpdate();
     });
 
-    // eslint-disable-next-line @typescript-eslint/no-misused-promises
-    addEventListener('token-change', async (event: unknown) => {
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-      const { detail } = event as CustomEvent;
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+    addEventListener('token-change', (event: unknown) => {
+      const { detail } = event as CustomEvent<string>;
+
       this.selectedToken = detail;
 
       const tokenInfo = this.resources?.find(
@@ -77,19 +70,20 @@ export default class WidgetApp extends WidgetMixin(LitElement) {
 
       if (this.homechain?.type === Network.EVM) {
         this.selectedTokenAddress = (tokenInfo as EvmResource).address;
-        await this.fetchTokenBalance();
-      }
 
-      this.requestUpdate();
+        void this.fetchTokenBalance().then(() => this.requestUpdate());
+      } else {
+        this.requestUpdate();
+      }
     });
 
-    // eslint-disable-next-line @typescript-eslint/no-misused-promises
-    addEventListener('connectionInitialized', async (event: unknown) => {
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-      const { detail } = event as CustomEvent;
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
-      if (detail.connectionInitiliazed) {
-        await this.connect();
+    addEventListener('connectionInitialized', (event: unknown) => {
+      const { detail } = event as CustomEvent<{
+        connectionInitialized: boolean;
+      }>;
+
+      if (detail.connectionInitialized) {
+        void this.connect();
       }
     });
   }
diff --git a/packages/widget/src/components/widget-app/widget-mixin.ts b/packages/widget/src/components/widget-app/widget-mixin.ts
index 83685b7b..b7235eef 100644
--- a/packages/widget/src/components/widget-app/widget-mixin.ts
+++ b/packages/widget/src/components/widget-app/widget-mixin.ts
@@ -69,11 +69,6 @@ const WidgetMixin = <T extends Constructor<LitElement>>(
 
     @state()
     tokenName?: string;
-
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    constructor(...rest: any[]) {
-      super(rest);
-    }
   }
 
   return Mixin as Constructor<IWidgetMixin> & T;
diff --git a/packages/widget/src/components/widget-app/widget-view.ts b/packages/widget/src/components/widget-app/widget-view.ts
index 4db5a283..5843dd58 100644
--- a/packages/widget/src/components/widget-app/widget-view.ts
+++ b/packages/widget/src/components/widget-app/widget-view.ts
@@ -72,13 +72,13 @@ export class WidgetView extends LitElement {
   tokenBalance?: string;
 
   @state()
-  connectionInitiliazed: boolean = false;
+  connectionInitialized: boolean = false;
 
   initConnect = (): void => {
-    this.connectionInitiliazed = true;
+    this.connectionInitialized = true;
     dispatchEvent(
       new CustomEvent('connectionInitialized', {
-        detail: { connectionInitiliazed: this.connectionInitiliazed },
+        detail: { connectionInitialized: this.connectionInitialized },
         bubbles: true,
         composed: true
       })
diff --git a/packages/widget/src/controllers/sdk-manager/SdkManagerContextProvider.ts b/packages/widget/src/controllers/sdk-manager/SdkManagerContextProvider.ts
index 5387283b..7fa07e27 100644
--- a/packages/widget/src/controllers/sdk-manager/SdkManagerContextProvider.ts
+++ b/packages/widget/src/controllers/sdk-manager/SdkManagerContextProvider.ts
@@ -77,8 +77,7 @@ export class SdkManagerContextProvider extends LitElement {
     );
   }
 
-  // eslint-disable-next-line @typescript-eslint/require-await
-  async connectedCallback(): Promise<void> {
+  connectedCallback(): void {
     super.connectedCallback();
 
     this.walletManager?.addAccountChangedEventListener(() => {
diff --git a/packages/widget/src/controllers/wallet-manager/WalletManagerController.ts b/packages/widget/src/controllers/wallet-manager/WalletManagerController.ts
index 5ea6a0ed..5189a67d 100644
--- a/packages/widget/src/controllers/wallet-manager/WalletManagerController.ts
+++ b/packages/widget/src/controllers/wallet-manager/WalletManagerController.ts
@@ -28,9 +28,8 @@ export class WalletManagerController implements IWalletManagerController {
 
     if (network === Network.EVM) {
       this.initWeb3Provider(initArgument.web3Provider);
-    } else if (network === Network.SUBSTRATE) {
-      this.initFromApiPromise(initArgument as ApiPromise);
-      // eslint-disable-next-line no-dupe-else-if
+    } else if (network === Network.SUBSTRATE && initArgument.apiPromise) {
+      this.initFromApiPromise(initArgument.apiPromise);
     } else if (network === Network.SUBSTRATE && initArgument.wssConnectionUrl) {
       void this.initFromWssProvider(initArgument as string);
     }
@@ -45,18 +44,21 @@ export class WalletManagerController implements IWalletManagerController {
   public addAccountChangedEventListener(
     callback: (account: string) => void
   ): void {
-    this.evmWallet?.addListener(customEVMEvents.ACCOUNT_CHANGE, (account) => {
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-      this.account = account;
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
-      callback(account);
-    });
+    this.evmWallet?.addListener(
+      customEVMEvents.ACCOUNT_CHANGE,
+      (account: string) => {
+        this.account = account;
+        callback(account);
+      }
+    );
   }
 
-  public addChainChangedEventListener(callback: () => void): void {
+  public addChainChangedEventListener(
+    callback: () => void | Promise<void>
+  ): void {
     this.evmWallet?.addListener(customEVMEvents.CHAIN_CHANGE, () => {
       this.account = this.evmWallet?.address;
-      callback();
+      void callback();
     });
   }
 
diff --git a/packages/widget/src/controllers/wallet-manager/wallets/Evm/Evm.ts b/packages/widget/src/controllers/wallet-manager/wallets/Evm/Evm.ts
index 5b4d6fca..81588f5c 100644
--- a/packages/widget/src/controllers/wallet-manager/wallets/Evm/Evm.ts
+++ b/packages/widget/src/controllers/wallet-manager/wallets/Evm/Evm.ts
@@ -47,34 +47,33 @@ class EvmWallet extends events.EventEmitter implements IEvmWallet {
   private appendProviderEvents(): void {
     checkWindow();
 
-    // eslint-disable-next-line @typescript-eslint/no-misused-promises
-    (this.web3Provider.provider as Provider).on('connect', async () => {
+    (this.web3Provider.provider as Provider).on('connect', () => {
       this.reconnectToProvider();
-      await this.resetAccounts();
+
+      void this.resetAccounts();
     });
 
-    // eslint-disable-next-line @typescript-eslint/no-misused-promises
-    (this.web3Provider.provider as Provider).on('disconnect', async () => {
+    (this.web3Provider.provider as Provider).on('disconnect', () => {
       this.reconnectToProvider();
-      await this.resetAccounts();
+
+      void this.resetAccounts();
     });
 
-    // eslint-disable-next-line @typescript-eslint/no-misused-promises
-    (this.web3Provider.provider as Provider).on('chainChanged', async () => {
+    (this.web3Provider.provider as Provider).on('chainChanged', () => {
       this.reconnectToProvider();
-      await this.resetAccounts();
 
-      this.emit(customEVMEvents.CHAIN_CHANGE, this.web3Provider);
+      void this.resetAccounts().then(() => {
+        this.emit(customEVMEvents.CHAIN_CHANGE, this.web3Provider);
+      });
     });
 
     (this.web3Provider.provider as Provider).on(
       'accountsChanged',
-      // eslint-disable-next-line @typescript-eslint/no-misused-promises
-      async (accounts: string[]) => {
+      (accounts: string[]) => {
         this.reconnectToProvider();
-        await this.resetAccounts(accounts);
-
-        this.emit(customEVMEvents.ACCOUNT_CHANGE, this.address);
+        void this.resetAccounts(accounts).then(() => {
+          this.emit(customEVMEvents.ACCOUNT_CHANGE, this.address);
+        });
       }
     );
   }
@@ -82,11 +81,10 @@ class EvmWallet extends events.EventEmitter implements IEvmWallet {
   public async connect(): Promise<void> {
     checkWindow();
 
-    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-    const accounts = await this.web3Provider.provider.request!({
+    const accounts = (await this.web3Provider.provider.request!({
       method: 'eth_requestAccounts'
-    });
-    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment, @typescript-eslint/no-unsafe-member-access
+    })) as Array<string>;
+
     this.address = accounts[0];
     this.signer = this.web3Provider.getSigner();
   }