After this release, the products Sigma / Sigma Huawei Edition / Smart -Clip 2 will be optimized, and the project will continue evolving in the form of Sigma Plus, based on the yearly fee.

There are two activations:

• 1 year activation
• 6 months activation

We strongly recommend to all the owners of pack-based products (Sigma / SC2 / Sigma Huawei Edition) to upgrade to Sigma Plus.

The owners of the following products can upgrade to Sigma Plus:

• SigmaKey / Sigma Box (with or without activated packs)
• Sigma Huawei Edition (with or without Power Pack activated)
• Smart -Clip 2 (with or without activated packs)

Upgrade to Sigma Plus is free of charge for all the Sigma, Sigma Huawei Edition and SC2 owners, no matter for how long you have been using the product. After the upgrade, each user gets a bonus time, depending on the date of the product/pack activation.

We strongly recommend you to upgrade your product to Sigma Plus. In this way, you will be able to use all the benefits of the newest solutions from Sigma team.

If for some reason you would like to continue using your old product version temporarily, this option is still preserved. In this case, you will have the access only to offline functionality of your product version. Access to Sigma Plus updates will be restricted.
What does it mean: in most cases, you will maintain the access to many service solutions, except for servicing of the newest Huawei/Honor models, because it requires access to the server.
If desired, you can upgrade to Sigma Plus at any time and obtain the access to the full functionality of the products and its future updates. The sooner you update, the more bonus time you will get.

Yes. You can activate one of the following activations after the upgrade:

• 1 year activation
• 6 months activation

Please note. You can activate the next activation if your current paid access time is less than 12 months (365 days).

Every user that will upgrade to Sigma Plus will get the bonus time according to the table below:

You can’t go back to the old version of your product after upgrade to Sigma Plus.

Each user of Sigma, Sigma Huawei Edition or SC2 can upgrade his product version to Sigma Plus.
You need to do the following:

1. Connect your box/dongle to your PC
2. Download, install and run the latest version of Sigma Plus software
3. Press the “Upgrade” button

Yes, you can upgrade to Sigma Plus even if you bought your product back in 2012.
Download the latest version of Sigma Plus software, accept new terms and conditions, and you will get the access to the newest features and full version of the product.
On top of that, you will receive minimum 3 months of bonus access time. Please note, that Sigma Plus requires annual activation.

Sigma Plus offers numerous advantages, compared to the older versions (Sigma Base, Sigma Full and others):

• Sigma Plus contains full service functionality
• Plus version is much cheaper at the start
• This solution is not divided into packs or brands. You instantly get the access to all of the service options and supported models
• Simplified to maximum start with the professional service tool

You can buy Sigma Plus as a box (with the set of cables to work with different phones), or as a USB dongle. The amount of supported models and available service options are the same for box and dongle.

After you bought Sigma Plus and performed the first update, you will get a 12 months access to the product.

To continue using Sigma Plus after your paid time expires, you will have to prolong your access by buying one of the following activations:

• Sigma Plus 12-month Activation
• Sigma Plus 6-month Activation

Yes. You can prolong your access even if your current access is still active. In this case, additional time of access will be summed up with your current remaining time.

Please note: You can activate the next activation if your current paid access time is less than 365 days.

Yes, you can. No matter when you purchased the old Sigma/SC2 pack (yesterday, or 9 years ago), you can activate it for Sigma Plus and use your tool for the time, determined by your pack type:

Please note! By "inactivated packs" we mean particularly inactivated (unused) activation strings of the old packs.

If you have the unused combo-pack or other types of Sigma/SC2 packs, please, contact your dealer to perform the exchange.

You can find your access time information at the bottom of the main software page, as shown below.

After the bonus time and/or paid time for using the product expires, you need to prolong it by means of purchasing one of the activations.
If you don’t prolong your time period for using Sigma Plus, all the service options will become unavailable.
To continue using this service software, you need to purchase and activate one of the available activations: 6 months activation or 1 year (12 months) activation.
You can activate the next activation (extension of access to Sigma Plus), if your current access time is less than 12 months (365 days). You can reactivate your expired access to Sigma Plus at any time.

You get access to the same software either with the box or with the dongle. Sigma Plus Box comes with the set of cables. Sigma Plus Dongle comes without cables.

SigmaPlus Dongle / Box needs to be connected to PC via USB port. It is recommended to connect the Dongle / Box directly to the motherboard's USB port avoiding USB HUB connection.

After first firmware update your Sigma Plus Dongle / Box will be automatically activated.

Please check Sigma Plus manual for a detailed step-by-step instruction.

If an error occurs during update procedure please generate a log file of update error and mail it to our support team via [email protected].

Actions in case of loss or damage of your smart card

If the smart card of your Sigma Box / dongle, Sigma Plus Box/dongle, or Sigma Huawei Edition has stopped working or you have lost it during the post-warranty period, you have the option to purchase a new Replacement Smart-Card from GsmServer online store and replace your old product with the new Sigma Plus product. By doing so, you will receive the Sigma Plus product on your Replacement Smart Card.

Connect your Sigma Plus Dongle / Box to PC and run Sigma Updater tool. It will display the version of your Sigma Plus Dongle / Box, its serial number etc.

No. You should install and use recommended drivers only.

Sigma Plus Dongle / Box hardware warranty is 180 days, starting from the date of first update.

Sigma is a totally different product that can't be activated to any other hardware.

In order to install Sigma Plus Dongle / Box properly, you should use official drivers only. Correct drivers can be downloaded from the support section of official Sigma website or found in software folder, after installation (x:\Program Files\GsmServer\SigmaKey\drivers\AU9540DrvPkg V1.7.26.0_WHQL\ ).

In most cases such an issue usually appears due to following reasons:

1. Some sharing software is installed at your PC.

In case if sharing software is installed, Sigma Plus can not work properly. Also, it may damage Smart card.
If any sharing software is installed, uninstall it, delete sharing ports, restart PC and run software after that.

2. Wrong drivers are installed or some software is blocking access.

Re-connect Sigma Plus to another USB port, re-install drivers, run Software after that.

3. If same issue appears still, try to install Sigma Plus Software at another PC, connect Sigma Plus box / dongle, install drivers and run software after that.
4. In case the same issue appears still, more likely that the Smart card is damaged.

In such situation, new Sigma Plus box or dongle is required. If your Sigma Plus is under warranty, please contact your reseller for the warranty replacement.

This software works with Sigma Plus Box or Dongle that you need to buy.

You can download the latest version of Sigma Plus Software from official web site at download section only.

All detailed manuals are located at the official web site in Help section.

It is always recommended to use the latest Sigma Plus Software version.

In order to solve this issue, install Microsoft Visual C++ 2008 Redistributable Package. You can get it here.

Before servicing the phone, please make sure that:

1. Battery charged more than 50%
2. All the side programs, that may interfere with the phone, are closed
3. The phone cable will not be disconnected till the process is done

Most of the supported phones have to be connected using regular USB cable. Some of the MTK-based models have to be connected to PC COM port via original COM data cable or using any COM port emulator. You can create your own cable using pinouts. Also you can buy cables at gsmserver online store:

• Micro-USB Cable based on PL2303 chip for MTK Phones
• Mini-USB Cable based on PL2303 chip for MTK Phones

If Unlock Phone procedure completed and the phone is still not unlocked, perform the following steps:

1. Read the whole backup from the phone
2. Specify the carrier your device is locked to
3. Specify what is written on the screen when you use non-original SIM card
4. Send this information by e-mail or post it on forum

Send the following information to [email protected]:

1. Detailed description of operation you've performed.
2. Full log file along with Sigma Plus Software version of the procedure(s) you've performed.
3. Backup copy read from the phone.

You may send the log to the official forum

Send the following information to [email protected]:

1. Backup copy that was created before any operation.
2. Step by step description of performed operation(s).
3. Full log file along with the Sigma Plus Software version.
4. Backup copy that was created after operation was performed.

You can also use this web app to report an unsupported device, as well as write a message on the forum.

If you've followed Direct Unlock procedure and your device is still locked, you need to patch the firmware.
In order to develop firmware patch, we need to get the following information from you:

1. Full name of the model of the device you have
2. The carrier and the country your device is locked to
3. What is written on the screen when you use non-original SIM card
4. Full backup of the device

Send this info to [email protected]

Sigma Plus is a professional phone servicing tool with all the required info on how to work with supported devices.
How to get that info:

1. You can check whether the model is supported or not here.
2. You will find links to the manuals at the very same page, as well as video manual on how to find the phone and appropriate instructions.
3. Also you can subscribe to Sigma YouTube channel to get the most recent video instructions for certain phones.
4. If you can't find answer to your question, use search feature on the forum. It is very likely that someone has already encountered such issue and was provided with a solution.
5. Still can't find the answer? Use Google like it is shown here.
6. If Google does not help either, start a topic at the forum, provide detailed description of the problem, give as much information as possible (phone version, carrier, logs, etc.)

Each user is granted with free access to Boot-loader v2.0 for one year after the first update.

Here you can find all screencasts that explain how to Register, Download files, Top Up Account.

1. Download the latest version of Sigma Plus software
2. Click on "Sigma Plus" Tab
3. Press "Update S-Card firmware" button

This issue is with your OS. You have to get winusb.dll and install this file manually.

Install Microsoft Visual C++ package from here.

We recommend you do the following:

• Use only the drivers provided by Sigma Team.
• Connect Sigma Plus Donlge / Box to USB port placed on the back side of PC (motherboard's USB port). Avoid using any kind of USB HUBS.
• Reinstall dongle drivers  from Sigma Plus Software folder or from here

Watch this video to find out how to install Sigma Plus dongle drivers.

If you still get the error, please, insert Sigma Plus Dongle / Box into another port and select drivers manually from the following folder: 

• \Program Files\GsmServer\SigmaKey\drivers\AU9540DrvPkg V1.7.26.0_WHQL\program_files\AlcorMicro\x32\

or

• \Program Files\GsmServer\SigmaKey\drivers\AU9540DrvPkg V1.7.26.0_WHQL\program_files\AlcorMicro\x64