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Coin98 wallet extension setup troubleshooting guide



Coin98 Wallet Extension Installation Issues and Connection Problems Fix Guide

If the add-on fails to appear in your browser's toolbar after installation, immediately access the extensions management page (chrome://extensions or edge://extensions). Ensure the toggle next to the installed plug-in is enabled and visible. For Chromium browsers, you may need to pin it by clicking the puzzle icon.


Connection errors often stem from mismatched networks. Verify your active network within the interface matches the one required by the application you're using. Manually add the correct RPC endpoints for the desired blockchain; public endpoints can become congested. A persistent "Connecting..." state frequently resolves after a full browser restart, which clears cached session data.


Transaction signing failures are commonly related to insufficient native tokens for gas fees. Before attempting any transfer, confirm you hold a small balance of the chain's primary asset (like ETH for Ethereum, BNB for BSC). Always check the transaction preview for the estimated network cost, which can fluctuate significantly during peak times.


For seed phrase import issues, meticulously verify each word. The system is case-insensitive but demands perfect spelling. Enter the 12 or 24-word sequence in the exact order provided during creation, using single spaces between words. Any discrepancy, even a single character, will prevent access to your generated addresses.

Browser Compatibility and Extension Installation Issues

Confirm your browser is updated to its latest stable version; Chrome, Brave, and Edge are fully supported, while Firefox and Safari may experience limited functionality or require manual addition from their respective stores. Opera users should install the Chrome Web Store version by first enabling "Install Chrome extensions" in their browser's settings. If the add-on fails to appear after a store install, access your browser's management page (like chrome://extensions/) and ensure the toggle is enabled, as it can sometimes be deactivated automatically.


Persistent installation failures often stem from conflicting software. Temporarily disable other add-ons, especially other crypto asset tools or ad-blockers, and attempt the installation again. For Chromium-based browsers, a complete reinstallation may be necessary if the component's files are corrupted–navigate to the extensions page, remove it entirely, restart the browser, and install a fresh copy from the official store. Always download the software directly from the developer's verified publication channel to avoid modified or malicious code.

Connecting the Extension to a DApp is Unsuccessful

First, verify that the add-on is unlocked and the correct account is active.


Check the DApp's interface for a network selection menu. Your active network in the add-on must match the blockchain the application requires; a mismatch will prevent a connection. Manually switch your network in the add-on's interface to the one specified by the DApp, such as Ethereum Mainnet, BNB Smart Chain, or Polygon.


Some applications only support connection injections from certain providers. Visit the DApp's official documentation or community channels to confirm compatibility with your specific crypto tool.


Clear your browser's cache for that specific website. Stored, corrupted site data can interfere with the connection script. Use your browser's settings to clear cached images and files for the DApp's domain, then reload the page completely.


If the problem persists, attempt to reconnect by revoking the DApp's permissions. Inside your add-on's settings, find the list of connected sites and remove the problematic application. Return to the DApp and initiate a fresh connection request, ensuring you click "Connect" or "Sign" when the pop-up authorization window appears.


Browser conflicts are common. Disable other financial add-ons temporarily, as multiple injected providers can cause errors.


A hardened browser security configuration might block the necessary scripts. Adjust shields or privacy settings for the DApp's site to a less restrictive level, allowing cross-site requests and scripts to run.


Finally, ensure both your browser and the add-on are updated to their latest versions, as outdated code frequently breaks integration with newer DApp frameworks.

Recovering Wallet with Seed Phrase is Failing

First, verify every single word against your original backup with absolute precision. A single typo, a misplaced letter, or an incorrect word order will halt the process completely.


Carefully check for these common input errors:


Accidental spaces at the start or end of the phrase.
Using similar-looking words (e.g., "there" instead of "their").
Misreading handwritten characters like 'o' and 'a'.



The application you are using adheres to a specific industry standard–BIP39. Your secret phrase must consist of valid words from its official wordlist. If you invented or substituted a word, the system will reject the entire sequence. Use an offline BIP39 tool to validate each term independently.


Confirm the exact number of words your phrase requires. Standard lengths are 12, 15, 18, or 24 words. Entering 13 words will not work. If your backup shows a line break, ensure you are not skipping or duplicating a term.


Some software includes an optional passphrase (a 13th or 25th word). If you created one originally and are now omitting it, you will access a different, empty vault. Conversely, adding an extra password when none was set initially will also fail.


If verification passes yet access is denied, the issue may be deeper. The funds could be on a different derivation path than the one the tool automatically scans. Advanced settings often allow manual path entry; try common paths like `m/44'/60'/0'/0` for Ethereum-based assets or `m/44'/501'/0'/0` for Solana. This step requires knowing the chain's specific path used during the vault's creation.

Transaction Stuck or Not Appearing in the Extension

First, verify the transaction's status directly on the relevant blockchain explorer using your public address.


A pending transaction often results from a gas fee set too low for current network demand. If the interface allows, you can attempt to speed it up by submitting a new transaction with a significantly higher priority fee, replacing the stalled one.


For actions that never show up, the most common culprit is an incorrect network selection within the interface's settings. Confirm you are viewing the asset on the precise blockchain it was sent on (e.g., BNB Smart Chain, Polygon, Solana).


Clearing the cached data in the browser add-on's settings can force a fresh synchronization with network nodes, making missing activity visible.


Always double-check the recipient address and network before submitting; a transfer sent via an incompatible protocol is irretrievable.


Persistent issues may require reinstalling the add-on after backing up your secret recovery phrase, as local data corruption can hinder proper blockchain interaction.

Resolving Network and RPC Configuration Errors

Verify the exact RPC endpoint URL and chain ID on the blockchain's official documentation, as community-shared links are frequently deprecated.


Manually inputting a custom RPC often resolves persistent 'Invalid RPC' alerts. For Solana, a working endpoint is https://api.mainnet-beta.solana.com, while for Polygon, try https://polygon-rpc.com. Always cross-check the network's current specifications, as these can change without notice.


If transactions stall or balances fail to load, the configured node might be overloaded. Switch to an alternative public RPC provider or a private service like Alchemy or Infura for enhanced reliability. Clearing the application's cached network data forces a fresh sync with the new endpoint, eliminating outdated chain state information that causes display inaccuracies.


An incorrect chain ID will prevent the software from recognizing the network entirely, leading to failed interactions.


Confirm this numeric identifier matches the intended chain–Ethereum Mainnet uses 1, Arbitrum uses 42161. Mismatched IDs are a primary source of connection failure.

Fixing Incorrect or Missing Token Display

Manually add the token contract address to your asset list. Locate the official, verified contract address from the project's primary website or a major block explorer like Etherscan or BSCScan. Copy this address directly into the 'Add Custom Token' function within your portfolio view, ensuring the network selection matches the token's native blockchain. The interface should then automatically populate the symbol and decimal places; confirm these details against the explorer data for absolute accuracy before finalizing the addition.


Verify your active network. A token minted on Polygon will not appear in an Avalanche C-chain portfolio view. Cross-reference your current network selection with the blockchain the token was issued on. This mismatch is a common root cause for assets not showing.



Problem
Quick Action
Data Source to Check


Token not visible
Add custom token via contract address
Project's official documentation


Incorrect balance or symbol
Re-add token with correct decimals
Block explorer token tracker page


Price data missing
This is often a backend feed issue; refreshing usually helps.
Portfolio settings for price APIs


Updating or Reinstalling the Coin98 Wallet

Manually check for a newer version in your browser's add-on management page; outdated software often causes connection failures or transaction errors. If an update doesn't resolve persistent issues like a frozen interface or missing assets, a complete removal followed by a fresh installation is necessary. Export your private keys or secret recovery phrase from the application's security settings before you delete anything–this step is non-negotiable for restoring access to your funds.


After clearing the old add-on from your browser, install the latest build directly from the official store. Import your existing account using your saved phrase, then verify network configurations and custom RPC settings to ensure full functionality.

Q&A:
I installed the Coin98 extension but the icon isn't showing up in my browser toolbar. How do I fix this?

Sometimes browser extensions are installed but not pinned to the toolbar. In Chrome, Edge, or Brave, click the puzzle piece icon (extensions menu) at the top right. Find "Coin98 Wallet" in the list. Next to it, you should see a pin icon. Click it to turn it blue or solid, which will place the Coin98 icon on your toolbar for easy access. If you don't see Coin98 in the list at all, the installation may have failed, and you should try reinstalling it from the official store.

After setting up, my Coin98 wallet isn't connecting to any dApps. What steps should I take?

This is a common connection issue. First, ensure you are using a supported browser like Chrome, Brave, or Edge. Then, check these points: 1) In the Coin98 extension, verify the network (e.g., Ethereum, BSC) matches the dApp's network. 2) Make sure the dApp is requesting a connection and you have clicked "Connect" or "Approve" in the pop-up wallet window. 3) Clear your browser cache and restart it. 4) Check if you have multiple wallet extensions running; they can conflict. Try disabling others temporarily. 5) Ensure the dApp itself is functioning correctly by checking its official social channels for service status.

I'm getting an "Invalid password" error when trying to import my wallet with a seed phrase. What am I doing wrong?

The "Invalid password" error typically appears during the wallet recovery process, not seed phrase import. Here's the distinction: To import using a 12 or 24-word recovery phrase, you must select "Import Wallet" or "Recover Wallet," not "Import Keystore" or "JSON File." The password field in that error usually refers to a specific keystore file password. If you are using your seed phrase, double-check every word for exact spelling and order. Ensure there are no extra spaces at the beginning or end. If the issue persists, the phrase may be from a different wallet standard not fully compatible with Coin98's derivation path.

Can I use the Coin98 extension on multiple browsers or devices with the same wallet?

Yes, you can access the same wallet account from different browsers and devices. The wallet data is not stored in the browser itself but derived from your secret recovery phrase. To set it up on another browser or a mobile device, simply install the Coin98 extension or app and choose "Import Wallet." Enter your original 12 or 24-word seed phrase. This will recreate your wallet with all its addresses and assets. Your funds and transaction history are on the blockchain, so they will appear once the wallet is correctly restored using the same phrase.

The extension pop-up window is very small, cut off, or won't open properly. How can I resolve this display problem?

Display issues are often related to browser zoom settings or conflicting extensions. First, press Ctrl+0 (Cmd+0 on Mac) to reset your browser zoom to 100%. If the pop-up is still too small, try clicking the Coin98 icon while holding the Shift key. Some users find this forces a resize. Another method is to right-click the coin98 wallet extension tutorial icon, select "Inspect" or "Inspect popup," which opens the developer tools window. Simply closing this tools window can sometimes reset the pop-up's dimensions. If these fail, check for browser updates or reinstall the Coin98 extension, as a corrupted installation can cause interface errors.

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