Click below to download the SIM200 to sim201 upgrades
DM800's core encryption technology in the SIM card, high imitation of  the 
DM800's series, SecondStage Bootloader also from # 69 to upgrade to #  75, SIM technology is also from SIM1 to upgrade to SIM2.01, Here is the  new mine e-
DM800, SIM card upgrade notes, can be determined from the  following events whether to upgrade your SIM card. SIM2.00 upgrades,  SIM2.01 to enjoy all the features of later versions of the changes if  there is, SIM2.01 would like this as an upgrade patch, 
DM800 IMG use the  latest version of the software.
2009.01.01 --- 2009.07.20 SIM1 plastic white card, the new mine users  have a free replacement is completed
2009.07.20 --- 2009.10.17 SIM2.00 white cards, there are dots in Figure  silver security logo, the latest available version of the original # 72.  SIM2.01 can now upgrade to
2009.07.20 --- now SIM2.01 white card, square gold security signs, one  machine a MAC, the latest is # 75
2009.07.20 --- "Now SIM1 yellow card, square silver color security  signs, for the # 72 cheaper models to use, can not be upgraded using the  new software needs to re-purchase
Programs before the upgrade need to make sure:
1. Your SIM card is white with silver dot anti-counterfeiting marks  (Figure 1), it is recommended that you do not upgrade operation.
2. The upgrade process, due to a computer or a phoenix smart card device  information is wrong, will result in escalation of risk of failure, in  principle, can return to factory upgrades, but customers need to pay the  freight back and forth
The upgrade process:
Download a good SIM200 to sim201 upgrades in preparation for Huang Huang  smart card device (3.57 or 3.68), with a computer COM port.
Looking for blank phone SIM great Kaka sets on the back of transparent  tape affixed to SIM2.00 paste according to the gap. (Figure 2)
Phoenix inserted the card to write card, connect a computer COM port.  (Figure 3)
Point reset button, test the card is plugged in, and whether SIM2.00  card. (Figure 4)
Determined, that this has already detected SIM card, click the upgrade  operation. (Figure 5)
Clicked, there will be a re-written cards plug Power Supply, and then  click OK. Pay attention to, without the written card from the device  inside the card out.
Showed a normal upgrade the state. (Figure 6)
After the upgrade will be prompted to upgrade is complete, so that you  can plug the card back to the receiver 
DM800. SIM201-75 family of  upgraded all the software. (Figure 7)
If the upgrade process occurred "card error", need to re-operation of  reset and then continue to repeat the above work, until you are prompted  to upgrade to complete. (Figure 8)
The cards will be prompted to upgrade is complete, this is not the  original manufacturer SIM2 card or the wrong version, this card has  truly upgraded to the surface of the SIM2.01. (Figure 9)
This program is set to be completed three SIM2.00 a complete upgrade.  (Figure 10)
Procedures for detection of SIM version of the newly added features,  shown in Figure 11/12
Upgraded 
DM800, can be any brush following the latest version of the  Chinese software # 75.
DM800 second-generation Chinese version of the software to download  SIM201 .