Useful Tips

How to find out if iphone is locked


| Unlink from iPhone operator using UltraSnow

Compatible with the following devices: iPhone 3G, 3Gs, 4

Attention! iPhone GSM or iPhone 2G is not supported

System requirements: iOS 4.3.3 and below.

UltraSn0w - soft unlock (unlock - software decoupling of the locked device from the operator). Unlock is operational as long as it is installed, and after each flashing of the device, it must be reinstalled. There is no need to install unlock if you are the owner of an officially unlocked phone (sim-free, Neverlock, PCT). Installing UltraSn0w is only possible on a phone with jailbreak and activation / hacking.

How to jailbreak and hack activation read here. The performance of UltraSn0w depends on the firmware version and modem version (see the list of compatibility below)

Baseband = Modem - This is the radio module of the phone, which is responsible for working through the antenna, radio.

Modem firmware = Modem version - Baseband’s firmware version.

Compatible modems - official iOS, which upgrades to the version of this modem. The table can be unlocked using UltraSnow - highlighted in white; cannot be unlocked at the moment - red.

iPhone 3G and iPhone 3Gs

04.26.08 — 3.0
04.26.08 — 3.0.1
04.26.08 — 3.1
05.11.07 — 3.1.2
05.12.01 — 3.1.3
05.13.03 - 4.0b1-2
05.13.04 - 4.0b3-GM
05.13.04 — 4.0
05.13.04 — 4.0.1
05.13.04 — 4.0.2
05.13.04 - 4.1b1
05.14.01 - 4.1b2-GM
05.14.02 — 4.1
05.15.04 — 4.2.1

Only relevant for iPhone 3Gs
05.16.01 — 4.3
05.16.01 — 4.3.1
05.16.01 — 4.3.2
05.16.02 — 4.3.3
Attention! For modems version 05.14.02, 05.15.04, 05.16.01, an option is provided for raising the modem to version 06.15.00 from iPad’a, for which unlock using Ultrasn0w 1.2.3 works.

How to increase the modem to 06.15.00

You can increase the modem to 06.15.00 only on iPhone 3G and 3GS with modems 05.14.02 and 05.15.04, 05.16.01.
This procedure is necessary, since a vulnerability remained in the modem version 06.15.00 for the iPad’a that allows unlocking using UltraSn0w. In modems 05.14.02 and 05.15.04, 05.16.01 this vulnerability was removed, respectively, while unlocking them is impossible. The modem 06.15.00 is fully compatible with the iPhone.

By upgrading your modem to iPad, you’ll lose the following:

  • it will be impossible to roll back the version of the modem to the iPhone, so you will lose the opportunity to flash the official iOS forever (you will only need to flash the firmware with custom firmware made using Sn0wbreeze or PwnageTool)
  • you will lose the warranty (not relevant for iPhones purchased abroad.)
  • the vast majority of iPhone users with an iPad modem complain about GPS problems.

Phone Check

If the user has found an iPhone 3GS, 4, 5, 6, 7 or is buying it with his hands, at a low price, then the first thing to check is whether the phone is locked. What do we have to do:

  1. Install your carrier’s SIM card.
  2. Turn on the iPhone and see if the logo appears in the status bar.

If the smartphone is locked, then instead of information about the operator there will be a message like “Activation Required”, “Invalid SIM”.

SIM card is not valid

What else can you do when buying an iPhone to make sure it is not locked:

  • Restart your smartphone while holding the Power + Home keys. Make sure that the iPhone detects the network immediately after turning on, without requiring additional manipulation. This applies to all models - 3GS, 4, 5, 5S, 6, 6 Plus, etc.
  • See which version of iOS is installed. An unlocked iPhone should work with the current version of iOS. For example, iOS 10 must have iOS 10 installed. On the iPhone 3GS and 4, the version will be lower - 6.1.6 and 7.1.2 respectively.
  • Go to the settings, open the "General" section and click "About this device". Make sure that the correct cellular provider is indicated opposite the “Operator” item - the one whose SIM card you inserted into the phone.

To find out if the iPhone is blocked, the IMEI code will help. You can find it in the following places:

  • The box in which the iPhone is sold.
  • Device body (iPhone 5, 6, SE) or SIM card tray (iPhone 3, 3GS, 4, 4S).
  • IPhone Settings: Basic - About the device - IMEI.

check by IMEI number

The resulting code must be entered on the site or These are unofficial services, so the result may not always be correct. If problems with the iPhone 5 usually do not arise, then older models (3, 3GS, 4, 4S) may not be detected.

Unlock phone

What should I do if the IMEI code or other signs have shown that the iPhone is blocked? Try to remove the block. The 3GS or 4 iPhone could be unlocked using the SAM app from Cydia. That is, at first it was necessary to jailbreak, then install software and carry out fairly complex manipulations to unlock the device. On the iPhone 5, the old algorithm has ceased to work, not to mention the 6 and 7 models.

Now you can get rid of the lock and remove the ban on working with other operators in only two ways:

  • Hardware using a turbo sim card.
  • Program, Executable officially at the level of the carrier.

There are no other ways to unlock iPhone. The phone model does not matter. Old programs that allow you to remove the block have stopped working. Now, to remove the lock on operators on both 3GS, iPhone 4, and 5, you need to pay money.

Hardware unlock

Turbo SIM is an adapter that allows you to remove the ban on working with other operators. There are three types of working Turbo SIM cards to unlock your iPhone:

They differ in compatibility, price and complexity of use. Even IMEI code affects whether or not you can get rid of the lock using one of the adapters. For example, iPhone 5 can be unlocked with an R-sim 9 / mini2 adapter. But if the IMEI starts with 013xx, then nothing will work. If the iOS version is higher than 7.1.2, then to unlock it you will need a jailbreak. There are a lot of such nuances, so when buying a Turbo SIM, you must definitely check compatibility. Otherwise, unlocking the iPhone will fail.

Hardware unlocking is not an ideal solution. If you unlock iPhone using Turbo SIM, you may encounter the following disadvantages:

  • The need to re-activate the device after losing the signal or rebooting the phone.
  • Ban on updating and restoring iPhone.
  • Problems with activating FaceTime.
  • Decrease in communication quality.

That is, it will turn out to unlock the phone, but to call it a fully working language does not turn.

Operator Unlock

If you want to unlock the iPhone officially, then you need to contact the operator on which the phone is locked. The provider will unlock the device once and for all, without restrictions on use. The service is paid, but it is impossible to unblock the iPhone in a different way without losses.

What to do for official unlocking? Find artists for “official unlocking”. When choosing an artist, follow the recommendations:

  • Choose companies with a real office, not just an online presence.
  • Read reviews on different sites.
  • Request payment confirmation.

Unlocking is not instant. Depending on the operator, you will have to wait 3 to 30 days.

Unlock cost

Unlocking will not be free in any case. You can unlock the iPhone from the operator through artists whose cost of services varies depending on the mobile provider. For example, to remove the lock from the Finnish operator DNA, you will have to pay about $ 200.

If you want to unlock iPhone without contacting the operator, you will have to spend money on Turbo SIM with a programmer to update the firmware. Therefore, it is so important to check the iPhone before buying, using the IMEI code or other methods. Unlocking can easily “eat” the money that was saved when buying a smartphone at a better price.

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