Reminder! Before servicing the phone, please make sure that:

  1. You use the latest version of Sigma software
  2. Battery charged more than 50%
  3. All the side programs, that may interfere with the phone, are closed
  4. Phone’s cable and device itself should not be disconnected or disturbed until the procedure is fully completed
  5. Connect phone to USB port placed on the backside of PC (motherboard's USB port)
    Do not connect or disconnect other USB cables into the PC during the actual work with the phone
  6. Avoid using any kind of USB HUBs and long USB cables. Use the shortest-length USB cable available.
  7. Phone has stock (factory) firmware version
  8. SIM card is removed



Code Calculation Manual
  • Select "Qualcomm" platform from tab menu in upper left side of the software
  • Go to "Calculator" tab
  • Choose desired model from the list of supported
  • Choose provider ID from the list of available; in most cases "provider ID" of your phone can be found at the sticker under the battery. In case providers ID is not specified on the sticker under the battery, try to find it on the phone's package - it should be mentioned there.
  • Enter phone's IMEI number
  • Click "Calculate" button and wait for calculation procedure to start
  • Unlock codes are calculated

Free distribution of unlock codes calculated by Sigma Software is strictly prohibited! Violation of this policy will result in your card being blocked

How to enter codes
  1. Turn the phone on with non-original SIM card inserted
  2. Phone's menu will pop-up with unlock code request
  3. Enter a code that was read by Sigma Software