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Knowledgebase/FAQ FAQ || Knowledge Base : BigUnlockServer



Why my iPhone is locked?

When you purchase a cell phone it is often offered at a discounted price by the cellular network. In return for this generosity they "lock" your iPhone to their network, so that you can only use their network for making and receiving calls. This means that you cannot use the SIM card of another network. Unlocking the phone removes this lock, allowing you to use your iPhone on any GSM wireless network anywhere in the world.

Why should I unlock my iPhone?

• Save a fortune abroad, by using cheap local SIM cards rather than expensive roaming tariffs.
• As usually subsidize the cost of the phone, by unlocking it you are increasing the resale value of your iPhone.
• Use your work and personal SIM card in your unlocked iPhone no need to carry two phones again. 
• Get the best value tariffs by swapping SIM cards to take advantage of the latest offers.
• You never send your iPhone to anybody.
• No opening your iPhone and risk of damage to your device.
• Very easy, no technical experience necessary.
• No complicated software or hardware, just connect to iTunes and activate, and your iPhone is PERMANENTLY unlocked.
• Is safe and does not void iPhone’s warranty.
• Unlocking is a one-time event. It works for the life of your iPhone, so you can upgrade iOS version anytime.


How does this official unlock work?

Upon successful order submission, we will process your iPhones unique IMEI number, the IMEI will registered as "Unlocked" in Apple database. Your phone will always be unlocked even after each new update of your phone firmware!


Is it permanent?


Sure, this is the only "lifetime" unlock solution for iPhone as the IMEI is registered as "Unlocked" in Apple database. Your phone will always be unlocked even after each new update of your iOS firmware!


Will I have to unlock my iPhone every time I change SIM Card?
No, even if you upgrade the iOS version or restore your iPhone, it remains permanently unlocked, no matter what you do to it.


Do I need to take the device to you?


No, we just need your IMEI to submit the request, so wherever you are, just purchase it.


Does it require jailbreak?


No, it does not require jailbreak, that is two complete two different things. But if you want to jailbreak, sure you can do so.

Is there any software and hardware required?


No software or hardware required. Just connect to iTunes and activate once after the unlock process is completed.


How Safe is it and is it guaranteed to Work?


This is the safest and fastest way to unlock an iPhone. There is absolutely no risk of damaging your iPhone or void warranty. We guarantee it to work or your money back.

Some other sites say they can do the unlock, and the price is much cheaper?


These are scam sites, they only accept SWReg payment, after they cheated your money, you can never get your money back.
They always mix up jailbreak and unlock for sale, after you pay them, they will just give you some rubbish jailbreak tutorials which is free on internet.

Some SIM interposers such as GEVEY Turbo SIM can do the unlock, and is cheaper, what is the different?


Turbo SIM use security holes to work, which is only works on certain baseband versions (modem firmware), if you upgraded the iOS version, the Turbo SIM just stop working, and you need to wait and buy a new one.
Our IMEI based official unlock is permanent, it actually turns your phone to an unlocked version, there is no future investment, and you can freely upgrade the iOS version.



What does IMEI mean?


The International Mobile Equipment Identity or IMEI is a 15 digit serial number unique to every GSM cell phone.
We have instructions for you to get your iPhone IMEI, please refer to our "Purchasing Steps" page.

My iPhone is still in-contract, can I unlock it?


We can unlock any iPhones locked to the carrier companies we listed in "Buy Now" page,
no matter it is in-contract, off-contract, or even blacklisted and there is unpaid monthly fee.



Is this iPhone unlocking legal?


Yes it is legal. On November 26, 2006, the U.S. Copyright Office ruled that consumers can legally unlock their cell phones in order to use them with rival carriers. Also it is authorized by Apple and the carriers.


Why the prices are not the same between different carriers?


The unlock fee of each carrier is different, some carrier may charge more unlock fees or off-contract fee.



How to pay?

We accept PayPal (or credit card), the safest payment channel in the world.

I have numerous iPhones to unlock, any discount?

We typically offer a discount for multiple unlocks on quantities of 5 or more iPhones.
Contact us for details, so we can tailor a quote to suit your volumes.


Will the unlock date delay?

Our unlocks time intervals are 99% accurate, the days are count as business day. But you know, there is always some special case such as server and holiday problem. 
However, if we delayed 5 days or more after the promised time interval, you can request a refund and we will send back the money to you by the same day.

Still got questions?

Please feel free to "Contact Us".




FAQ for our services ,

What is unlocking?

The unlocking service we offer allows you to use any network providers SIM card in your phone. Typically this involves unlock codes which are a series of numbers which can be entered into your mobile phone via the phones key pad to remove the network restriction and allow the use of other SIM cards. There are also other solutions which involve software or other ways to unlock your phone, so check that you are ordering the right solution for you.

Is mobile phone unlocking legal?

We would like to assure all of our website visitors that we would never provide an illegal service. Before starting our service, extensive research was carried out into the current international laws regarding mobile devices. Unlocking a mobile phone so that it will accept alternative network SIM cards is legal. All mobile phones are manufactured to accept any SIM card. It is consumers legal right to have their phone unlocked!Please see this notice from the UK police (this site is based in the UK): . In the USA, a recent recommendation by the comission set up to monitor and update the DMCA exempts the reverse engineering of firmware for unlocking purposes from the stringent copyright language of the DMCA. This has effectively made unlocking software completely legal in the USA for a duration of 3 years, after which the decision will be reviewed. The DMCA report exempting unlock software can be found at this document from the US Copyright Office:

The networks have to provide you with an unlock code if you request it, but they do charge much more than us!

IMEI changing, do we do it?

No, this is a service that we do not offer as this is not legal.

How do you unlock my phone?

You provide us with easy to find details of your phone e.g. the type, the IMEI number, country and the network that supplied the phone. This information is then used to provide an unlock code to unlock your phone. You simply follow the instructions we provide, and the phone will be unlocked - easy!

Will my phone still work?

Yes, unlocking simply removes the network lock and SIM lock that are entered into the phones software when sold to you by the network. 

Will unlocking my phone affect my contract?

If you obtained your phone on a contract, you should consider that the phone remains the property of the network until the end of your contract. Unlocking your phone while under contract may be a breach of your contract. You may wish to check with your contract supplier to see if unlocking is prohibited before purchasing unlock codes from us.

Do I require technical knowledge?

None at all, we provide complete and easy instructions for unlocking your phone. Often it can be as simple as entering an unlock code using the phone keypad. If there is a problem unlocking your phone using the codes we provide then we will endeavor to solve the problem to the best of our ability

Will the unlock codes damage my phone?

Removing the network restriction on your mobile phone with unlock codes is the safest form of unlocking available. You simply enter the necessary codes directly into your phone via the keypad to remove the network restriction.

How do I find my phones IMEI number?

The IMEI number is the International Mobile Equipment Identifier, this is a 15 digit number that uniquely identifies your phone. 

 You simply enter *#06# (star hash zero six hash) into your phones key pad and then a 15 digit number will be displayed on the screen. You can also find your phones IMEI number on a label on the back of your phone, underneath the battery.

 The unlock code will be generated from the IMEI number so it is very important you provide us with the correct IMEI number. If we do not have the correct IMEI number then we cannot generate the correct unlock code.

Do I need the original SIM card to unlock my phone?

 The unlock codes we supply for most handsets will be entered without any SIM card inserted. However, certain handsets do require either an alternative SIM card, or the original SIM card to be inserted in order for the unlock codes to work. 

What do I do with the unlock codes?

Once you receive the codes, follow our detailed instructions and enter the codes into your phone by using the phone keypad. It is simple and straight forward and will immediately unlock your phone.

How do I pay?

If you are a registered customer using your account freqently we accept the following payment methods:

  1. Bank Transfer
  2. Western Union

What is a SIM card?

Its the small (roughly 2cm by 1 cm) microchip card that you insert into a phone when its first set up. It provides the identity of the phone for the mobile network. The SIM card is usually located behind the battery on the back of the phone.

How to enter my Unlock Code on Apple iPhone

Please refer to the iPhone unlock instructions on how to unlock it once you get Activated status.

 Please make sure:

- You selected the proper tool for your carrier in which your phone is locked (if you are unsure please use the iphone check tool or message us, otherwise you may get charged for incorrect network)

- IMEI # is not stolen or barred/blacklisted (please make sure or you may get phone relocked)

- There must be no past dues or unpaid fees owed to your operator from the phone account, otherwise phone could be relocked.

Insert non accepted SIM card (foreign SIM card) into iPhone and connect with iTunes. Update phone. iTunes will freeze, Disconnect and Connect again. Open iTunes. Now your iPhone will be permanently unlocked!

This is NOT jailbreak or software, it is just like a factory unlock. All versions supported.

How to enter my Unlock Code on Nokia ?

Model: All Nokia

1 - Switch ON your phone without SIM Card,

2 - Compose #PW+CODE+1#

(if locked from Fido/Roger Canada, please compose#PW+CODE+7#)

The letter P appear after press 3 times quickly the button star ( * )

The letter W appear after press 4 times quickly the button star ( * )

The letter + appear after press 2 times quickly the button star ( * )

3 - The phone show "SIM Restriction Off" and was unlocked !

Model: Nokia C3

Turn on the phone with a non-accepted SIM card inserted. It should state that the SIM is restricted.

Press OK to be able to enter the unlock code. Then, using the full QWERTY keypad as normal, type: #pw+CODE+1# and press OK

Note: replace CODE with the unlock code we send you

How to enter my Unlock Code on HTC,SPV,MDA,XDA,iMATE and T-MobileG1 ?

Model : HTC SNAP

- Go to "Setting"

- Go to "Security"

- Select "Unlocking SIM" (at the bottom option)

- Enter Code you receive !

Model : All (including G1)

1 - Switch ON mobile with a not Allowed SIM Card,

2 - If phone ask, enter the PIN code of your SIM Card

3 - Now phone will ask you to enter the unlocking code !

Model : SPV C500

1 - Switch ON mobile with a not Allowed SIM Card,

2 - The message "PUK2" appear,

3 - Enter the Unlock Code we send to you.

4 - Phone ASK for New Code PIN enter : 0000

5 - Confirm and compose : 0000**

6 - Click "Finish" and phone will show "Network is locked..."

7 - Enter the Unlock Code we send to you and click "Finish"

8 - Restart the Mobile who is Unlocked !

How To Unlock CDMA/GSM HTC Phones:

1. Insert not allowed SIM card.

2. Phone will tell you to insert an allowed SIM card and that the phone will switch back to CDMA mode.

3. Click OK.

4. Click green button to get to the main screen of the phone.

5. Click on settings.

6. Click on all settings.

7. In the personal tab click on security.

8. The phone will ask you to enter the unlock code. Enter it. Done.

HTC DROID Incredible 2 - ADR6350VW SIM Unlock Instructions

If customer has a Verizon Wireless SIM card in the Device:

Generate or buy SIM Unlock code

Go to: Settings -> Security -> Disable SIM card lock + Enter

Enter the SIM Unlock code when prompted.


If customer has non-Verizon Wireless SIM card in the Device:

- Generate or buy SIM Unlock code

- Have the customer power cycle the device

- Enter the SIM Unlock code when prompted (This will occur when device is powering up)


How to enter my Unlock Code on SonyEricsson ?

Model : All SonyEricsson

1 - Switch ON your phone without SIM Card,

2 - Press 1 time the left arrow,

3 - Press 2 times the button * ,

4 - Press 1 time the left arrow,

5 - The message "Personalize with MNC2" will appear,

6 - You can now enter the Unlock Code we send to you.

If your phone have a "JOGDIAL" (ex : SonyEricsson K700i) you must press "down arrow" instead of "left arrow" for step 2 & 3. We mean by "Down Arrow" to direct the Jogdial down !

Model : Sony Ericsson Satio and Sony Ericsson Vivaz

1 - Switch ON your phone without a SIM Card

2 - Compose #PW+CODE+1#

(where CODE is the unlock code you are sent by email)

Press the star (*) button repeatedly to make the P, W or + appear

Model : Sony Ericsson X10

1. Put in a sim card from a non accepted network

2. Turn on the phone

3. It will then request for an unlock code

4. Press the unlock code box with your finger and then the number pad will appear at the bottom of screen

5. Input the unlock code

6. Press "UNLOCK" button which is below the unlock code box on screen

How to enter my Unlock Code on BlackBerry ?

Model : All BlackBerry

1 - Using the menu go to Settings Menu -> SIM card pressselect.

2 - While holding the SHIFT key, type mepd

3 - You should now see the five locking categories listed.

4 - While holding the SHIFT KEY, type mep2.

5 - Release the shift key.

6 - You are now prompted to enter the Network MEP code (it will also state how many attempts left)

7 - Enter the code

8 - Enter Return/Enter

9 - The device should then be unlocked

Model : Blackberry 9530 Storm

1. Insert any SIM card and turn ON your Blackberry.

2. Turn OFF all the wireless connections.

3. Go Back One Step by Pressing the Back Key.

4. Go to Options

5. Select SIM card.

6. Press the Menu Key and select "Show Keyboard".

7. Tilt the phone in Horizontal Position so that the Keyboard is displayed in the Landscape Mode.

8. Type MEPD [you will not be able to see the typed info].

9. Then enter MEP2

10. Now your Blackberry will ask you to enter network MEP code

11. Enter the Unlock Code provided by us to you and Press the Enter Key on the Screen.

12. It will now say "Code Accepted".

13. Congratulations! Your phone is now unlocked. Now your phone can be used with any GSM Network with SIM Card.

14. Go back to the Home Screen. Press the Menu Button and click on Manage Connections.

15. Turn all the Connections ON.The phone will now reboot and "Activation Required" will no longer be displayed.

Model : BlackBerry Bold 9000 & Torch

1) Make sure your SIM card is NOT inserted into the device.

2) Turn on the phone and click the “Manage Connections” icon. Choose the option “Turn off all connections.” The cellular radio will be turned off.

3) Go back to the Home screen and click the “Options” icon and select “Advanced Options.”

4) Scroll down and select “SIM Card” from the list.

5) Press the following keys in order: (M) (E) (P) (E)

6) A prompt will appear asking for the unlock code. Input the 16-digit code exactly.

9) Reboot your device.

10) Re-enable the cellular radio

Model : Curve, 8300, 8310, 8320, 8800, 8820

Must be done without a sim card inserted & wireless radios must be turned off.

1. Go to settings. 

2. Go to options. 

3. Go to advanced options. 

4. Go to sim card. 

4. Hold the ALT Key while typing in MEPE or MEPD or MEPPE or MEPPD ( not case sensitive ) ( you will not see text appear on screen while typing ). 

5. It will say "Enter Network MEP Code, then you type in the unlock code, press in the trackball to confirm. 

6. Your phone is now unlocked. 

Model : BlackBery Storm (9500)

1. Insert any sim card 

2. Turn off all of the wireless connections

3. Go to Options

4. Select Advanced Options

5. Select SIM Card

6. Hit menu select show keybord

7. Enter mepd (you will not be able to see the typed info)

8. Enter mep2

9. Now it will say enter network mep code

Model : BlackBerry 8700

Go to the Menu -> Options -> Advanced Options -> Sim card press select, while holding the Shift key (bottom right corner CAPS), type mepd. You should now see the five locking categories listed, while holding the alt key, type mep2. Release the alt key. You are now prompted to enter the Network MEP code. Enter the code, enter Return/Enter, the device should then be unlocked. 

Model : BlackBerry 8800

 ***** You must have a SIM card in your phone to complete these steps ( Can be active or inactive ) *****

1 - Go to settings menu => and then Options

2 - Select Advanced options => and then Sim card

3 - Type MEPD using your Blackberry keyboard (NOTE: You will not see any text appear on the screen while typing MEPD)

4 - Hold the ALT Key while typing in MEPE on your Blackberry keyboard (NOTE: You will not see any text appear on the screen while typing MEPD)

5 - You should be presented with a prompt "Enter Network MEP Code". Type in the 16 digit unlock code received from and press in the track wheel / jog dial to confirm

6 - Your phone is now unlocked

Model : BlackBerry 8100 Pearl

1 - Go to Options Menu => Advanced Options

2 - In the SIM Card menu, hold down the shift (right of the zero, cap) press meppd

3 - You will see the unlocking level screen there you hold the ALT key (left side below @) type mepp2

4 - Enter the unlock code.

Model : BlackBerry 8100 (Vodafone Australia)


This procedure unlocks the handset from being network restricted from only using SIM cards from Vodafone Australia. In case of difficulties, please refer to the FAQ listed below

1. Take note of the unlocking code shown above

2. Insert a Non-Vodafone Australia working SIM card.

3. Ensure the phone is charged and then switch the phone on.

4. Optional Step: If the SIM card has a PIN, enter your PIN number. (See FAQ below)

5. The phone will then display a message. The most common is “Invalid SIM card”. (Different message? See FAQ below)

6. Select “Turn Wireless Off”

7. Select “Settings” Menu , then go to Advanced Options > SIM Card

8. Type alt-MEPT by holding the ALT-key and typing the letters MEPT with multitap i.e. type hold ALT, type {M}{ER}{OP}{OP}{TY}

9. When prompted with “Enter Network MEP code (255 left)” on the screen, enter the 16-digit network unlock code provided for your phone, then press Enter. (Unlocking code is shown above)

10. Reset the phone by pulling the battery

11. Switch the phone on and the handset will be unlocked automatically. This will be confirmed if you can make and receive calls with the Non-Vodafone Australia SIM card. (You will need reception and phone credit with the different network provider)

 Please Note:

If the unlocking code is entered incorrectly the next attempt to unlock the device will be delayed for 10 seconds increments. The number of unlocking attempts is limited to 255 tries only. When 255 attempts is reached the phone will be permanently blocked.

To unblock the phone, it must be taken to a RIM service centre. No outgoing calls including emergency call is possible when the phone is blocked.


Question: My phone asks to enter a PIN number

Answer: For SIM cards with PIN ENBLED you will be required to enter a PIN. This is not the unlocking code that has just been provided. For information concerning the PIN, PIN2, PUK and PUK2 codes for a SIM card please read the manual that came with your phone. This is not a handset unlocking difficulty.

Question: My handset displays a different message then what is shown in this procedure when I insert a Non Vodafone Australia SIM card.

Answer: The most common message the phone will display is “Invalid SIM card”. Because each handset may have a different variation in software there is no common message. If your handset displays a different message it is recommended to move onto the next step. Note: Faulty SIM Cards - The handset may also display messages indicating the SIM you are using to unlock the handset is faulty, it could display “Insert SIM” “Bad Card”, “Card Error” or “Card Rejected”, confirm the SIM card is inserted correctly – Gold area downwards and the cut of the corner matches correctly. You will need a working Non Vodafone SIM card to unlock the handset, Vodafone can not assists with other networks faulty SIMs.

Question: I am outside of Australia and experiencing difficulties unlocking the phone that I purchased from a Vodafone Australia outlet

Answer: Clearly note this in the difficulties description. Vodafone Australia can only send a reply to the difficulty by email.