Beginner Guide
How to use iCloser from your first login to wallet, DID, and card actions
This page is written for users who are new to digital identity and digital assets. It explains how to register, log in, create and protect a self-custody wallet, understand private keys, register a DID, use card-related functions shown in the app, and solve common beginner issues such as having USDT on Polygon but not enough POL for gas.
iCloser is a non-custodial technology platform. Users retain control of their private keys and digital assets at all times. iCloser does not custody customer funds.
Step 1Email onboarding
Register and log in
When opening iCloser for the first time, begin with your email account. The app may require an email verification code to complete registration, login, password reset, or security actions.
- Open iCloser and tap Sign Up.
- Enter your email address.
- Request the verification code and enter it before the code expires.
- Create your password and complete account setup.
- Use the same email and password to log in later.
Tip for beginners: a verification code usually works one time only. If a code has already been used or has expired, request a new code and enter the newest one.
Step 2Self-custody wallet
Create or manage your wallet
iCloser is presented as a non-custodial, self-custody wallet experience. In supported wallet functions, you control the private keys and the assets linked to them.
Create WalletOpen the wallet page, choose Create Wallet, and follow the Private Key backup flow.
Receive AssetsUse your wallet address for the correct network before asking someone to send tokens.
Send AssetsCheck the network, address, token, amount, and gas fee before confirming.
Network AwarenessETH, POL, and BNB are different networks. Always match the token and chain shown in the app.
Beginner rule: if you are not sure which network to use, stop and check the receiving page first. Sending to the wrong network can cause loss or recovery delays.
CriticalNever share
Private keys and Private Key
Your private key or Private Key is what gives control of the wallet. In a self-custody model, this is what proves that the wallet belongs to you.
- Write the Private Key down and store it offline.
- Do not save it in chat apps, screenshots, or public cloud notes.
- Do not share it with customer support or any third party.
- If you lose it, wallet recovery may not be possible.
Important: iCloser cannot simply reset a self-custody wallet for you if the Private Key is lost. Keep backup control in your own hands.
Most common issueGas fees
Why USDT on Polygon may not move into card funding
A common beginner situation is holding USDT on Polygon while having zero or too little POL in the wallet. Even if the USDT balance is enough, Polygon transactions still need a small amount of POL as gas.
- You receive USDT on the Polygon network.
- You try to fund a regulated card-related action or move the asset on-chain.
- The transaction cannot proceed because the wallet has no POL to pay the network fee.
What to do: add a small amount of POL to the same wallet and the same Polygon network first. Then try the transfer or funding action again.
Card GuidePartner-dependent
Visa card actions: card funding, settlement out, and in-card conversion
The app interface may show simplified card actions such as card funding, settlement out, or conversion inside the card area. Payment access services are provided through licensed third-party partners where applicable. Availability depends on jurisdiction, card eligibility, onboarding status, compliance review, and partner support.
Card fundingUse the card funding entry shown in the app. Confirm the selected wallet, token, network, and amount. Make sure the required gas asset is available on the same network before you submit.
Settlement outUse the settlement-out action only after checking the destination, amount, and any partner or network limits shown in the app. Review all confirmation prompts before final submission.
Conversion inside the card areaIf a conversion function is shown in the Visa card section, follow the displayed rate, supported currency pair, and final confirmation flow. The exact pair and limits may vary by account.
Beginner safety checkBefore any card-related action, confirm three things: the network is correct, the gas asset exists, and your account is fully eligible for the displayed service.
Compliance note: card and payment services may be provided through licensed partners. Not every user, country, or account will see the same options at the same time.
IdentityDID + ENS
DID registration, wallet binding, and ENS guidance
iCloser supports digital identity flows tied to wallet-based identity. A DID can act as your identity layer inside the iCloser ecosystem and related experiences. In some flows, ENS-style resolution guidance or requirements may also be shown.
Register your DIDOpen the DID section, enter the name you want, check availability, and confirm the registration flow shown in the app.
Bind the DIDAfter registration, bind the DID to the intended wallet so the app can use it consistently for your identity and related services.
Understand ENS resolution guidanceIf the app shows ENS-related resolution details, read the network and balance requirement carefully before you continue.
Minimum requirement shown in appFor ENS-related resolution guidance described in the product, the minimum should not be lower than 0.1 ETH. If your balance is below 0.1 ETH for the required flow, complete the necessary top-up first.
Beginner tip: treat DID registration and DID binding as two separate checks. First make sure the DID is registered. Then make sure it is bound to the wallet you actually use.
TroubleshootingNew user checklist
What to check before you try again
Code issuesIf an email verification code fails, request the newest code and do not reuse old codes.
Network mismatchIf a token does not appear where expected, confirm the sending network and the receiving network are exactly the same.
No gas tokenIf the settlement button fails or the funding action cannot submit, check whether the gas token for that chain exists in your wallet.
Card eligibilityIf card actions do not appear, your account, region, or compliance status may not yet qualify for that feature.
DID binding issueIf the DID exists but does not display correctly, verify that the right wallet is connected and that the DID has been bound successfully.
Minimum thresholdsIf a flow mentions a minimum amount, meet the displayed requirement before starting the operation.
SEO FAQCommon beginner answers
Frequently asked questions
Is iCloser a custodial wallet?
No. In supported wallet functions, iCloser is presented as a self-custody, non-custodial wallet experience in which users retain control of their private keys and wallet assets.
Can iCloser access my private key?
The product is described as a self-custody wallet experience. Private key handling should remain under user control for supported self-custody functions. Always follow the in-app backup guidance and keep recovery material offline.
Why can I receive USDT but still fail to move it?
Because receiving a token and spending that token are different actions. On Polygon, a small amount of POL is usually required as gas. Without POL, the transaction may not submit.
What does one-click top up mean?
It means the product may show a simplified flow for card funding. You still need the right network, supported token, sufficient balance, and any required gas token before the operation can complete.
What should I do before DID registration?
Decide which wallet will hold the DID, confirm the displayed network, and read any naming, binding, or minimum balance requirement shown in the app before submitting.
What is the minimum for ENS-related resolution guidance?
Where this requirement is shown in the iCloser product flow, the minimum should not be lower than 0.1 ETH. Use the exact in-app requirement for your account and network.
