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05/19/08

FAQ

Categories: Uncategorized

x-sim
Q: Can I update the firmware of the Sigma Card ?
A: Yes, the firmware is completely updateable, we provide a tool and the newest firmware for FREE

Q: Do I need a special dongle to use the update tool ?
A: No, there is no special dongle needed, only a smartcard / simcard reader !

Q: What smartcard or simcard reader do I need to upgrade the firmware of the Sigma Card ?
A: Any USB or comport based 3.57 MHZ clocked Phenix or Smartmouse smartcard reader will work

Q: You claim your product is MUCH faster than others, can you explain why ?
A: Yes, we can, other cards base on forwarding traffic, means they are between the phone and the original card,
so even if they make full use of the speed enhancement they will need to collect data and than send the data again
and this applies for both directions... - so even if they make full use of the speed enhancement we will be 50% faster than them

Q: You claim your product is better than others on the market, can you explain why ?
A: There are many similar products on the market that claim to be as good or even better than the SIGMA, they all base on
forwarding traffic between the phone and simcard - that is the main difference between them and us.

Q: Are there any problems related to forwarding traffic ?
A: YES, you loose performance (speed) as well as you open the door for a lot of secondary problems because of frame or timing errors !
Even if those products are looking to work well in the beginning a lot of issues can arise later !

Examples:
- Phones that restart because of bad or incomplete implementation of the protocol
- Freezing phones because of bad or incomplete implementation of the protocol
- Phones that loose connections because of bad or incomplete implementation of the protocol
- Certain features of the simcard are not working well or not at all (GPRS, 3G, Edge...)

Those are the reasons why they need(ed) so many updates of their firmware in the past and they are still not perfect.

Q: Why do you use two resistors on your hardware ? others don't have them and work also !
A: They are required for the unique way we work and enable us to work so well

Q: How to configurate the SIGMA to "unlock" my phone ?
A: To unlock 99% of the existing phones NO PC is needed to configurate the SIGMA, configuration is done over the pin entry
(this will work on EVERY GSM phone unlike other products that use STK menus and does not require special knowledge)

Q: How do I know what operation mode to use ?
A: Check from the data we provide, the system of the modi is also explained below, so you can also do it by trial and error.

Q: How many operation modi does Sigma have ?
A: 10.000 ! (0000 - 9999)

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