FREQUENTLY ASKED QUESTIONS

The  eSIM World, eSIM Asiania, OneSimCard Europe & More and Universal SIM cards do not use the callback to make an outgoing call in over 70 countries.

Currently, the mobile application to remove the callback on other SIM cards is not available.

For Universal, Expedition, & eSIM World ONLY: Just dial 099 "Send" from your OneSimCard phone and in few minutes the balance will be displayed on the screen of your phone. Customers with iPhones can use OneSimCard Assist app to check balances and many other things.

You can always check your current balance by logging onto your OneSimCard account at www.onesimcard.com.

In order to add airtime instantly, simply register a credit card with us on our website.

There are several ways to add airtime to your OneSimCard service.
Automatic Recharge - recommended:

1. Just log on to your account at www.onesimcard.com and set auto-recharge in the Recharge Menu. Funds will be added to your account when your balance drops below the threshold you set.

From the phone using your credit card (Universal, Expedition and eSIM World only):

1. a) From the phone dial pad dial 098YYYY*XX. Talk. YYYY = Last 4 digits of the credit card used last at OneSimCard.com. YY = Amount from 25 to 99 USD

 For example, if you need to add $50 and the last 4 digits of the credit card registered with us is  8654:
You would dial 0988654*50 and press TALK. In few seconds you will get a confirmation message with  your new balance.
* is a star character located on the keypad
From the phone using 1SIM Fund:
 a) From the phone dialpad dial 098YYYY*XX. Talk. YYYY -  4 digits PIN you created in 1SIM FUND menu. YY Amount from 25 to 99 USD

 For example, if you need to add $50 and the 1SIM FUND PIN is  8654:
You would dial 0988654*50 and press TALK. In few seconds you will get a confirmation message with  your new balance.
* is a star character located on the keypad

From the OneSimCard.com web interface:

1. You must log in at www.onesimcard.com each time you wish to add funds.
2. The minimum recharge amount is US $25.00
3. Using Recharge PIN purchased from a dealer:

If you purchased a recharge PIN from OneSimCard Authorized dealer, you can recharge your account from OneSimCard handset from OneSimCard - Add Credit menu. When the Add Credit menu is selected, enter the 10-digit PIN and press the Talk (Send) button. 

1. Go to Recharge Menu and recharge your SIM
   or
2. Set up auto-recharge in Recharge Settings Menu

• From the OneSimCard menu of your phone, scroll down to Add Credit and select this option.
  You will see 'Please enter PIN' on the screen.
  Enter 4 digit 1SIM Fund PIN + * + Amount + press the OK.
  For example, if you need to add $50 and the PIN is 8654:
  You would dial 8654*50 and press OK. In few seconds you will get a confirmation message with your new balance.
• Alternatively you can do the same from the main dial menu of the phone by dialing: 098+PIN+*+Amount+ Talk (Send) button.
  For example, if you need to add $50 and the PIN is 8654:
  You would dial 0988654*50 and press TALK. In few seconds you will get a confirmation message with your new balance.

Yes. There are a few options available if your phone is locked to the carrier that sold you the phone.

• Try contacting the carrier to see if they unlock it for you.

• You can purchase a travel phone bundle with the SIM at

           http://www.onesimcard.com/international-cell-phones/

Some recent Android upgrades to versions 4.2.1 and 4.2.2 have a bug causing the OneSimCard Menu, labeled as SIM Toolkit, to be disabled.

If you do not see the SIM Toolkit app in your Android phone, please try doing the following:

Go to Settings>Security>Other Security Settings>Setup SIM Card Lock>Lock SIM Card. It will ask for the default SIM PIN. Enter 0000. Power off the phone and turn it back on. The SIM Toolkit app will then become available, though it might take 1-2 minutes for the phone to display it.

On Android version 5.1 go to Settings > SIM Cards > SIM Toolkit

Once you have access to the SIM Toolkit, select it, scroll down to Settings, enter 1101 and press confirm. Your phone will now be able to dial normally.

For eSIM cards, make certain that your eSIM is enabled.

Yes, You can pay with Bitcoins.

When paying with Bitcoins you first deposit money into your 1SIM Money Fund. Once the money is there, you can make a purchase or set an automatic recharge of you SIM card(s) or Extra Number(s).

Follow these steps:

1. Go to www.onesimcard.com and if not registered yet, register by clicking on the Register link in the upper right corner of the screen.
2. Once registered, log in to your account at www.onesimcard.com and proceed to 1SIM FUND menu.
3. Select amount you would like to add to your OneSimCard fund.
4. Click on BITCOIN button. You will be provided with few options for sending bitcoins.
5. Follow the instructions on the screen.
6. Once paid and funds are received by OneSimCard, you will be notified by email. While it usually takes no more than 2 hour for the payment to be posted to your 1SIM FUND, it could take up to 24 hours. Once you receive the confirmation email, you can log in to your OneSimCard.com account and make a purchase or recharge using the balance of your 1SIM FUND.

Unless otherwise noted, all phones sold on OneSimCard.com come with our standard 90-day replacement warranty. This warranty covers any mechanical defects, but does not include damage due to Acts of God, neglect, water damage, or other intentional or unintentional abuses of the phone. OneSimCard does offer extended warranties available for purchase.