Recently, some customers upgraded the firmware to 1.08 met problems, it looks like the DSTWO is broken. DSi and 3DS could not recognize the DSTWO. However, DS and DSLire work fine.

Part I: (99% situation)
 

YES, this is 1.08 firmware bug,  the supercard team had fixed this bug and the last firmware is 1.09 now.

How can we fix the DSTWO that DSi and 3DS could not recognize?

1. Find a DS or DSLite console. (borrow from friend, classmate, colleague or game store). 

2. Download the Fireware ver1.09 and EOSv1.11  to the MicroSD. Make sure these files and folder in the MicroSD.

3. Turn on the DS or DSLite power, system will auto detect firmware 1.09.

4. Then upgrade to 1.09 and this bug fixed.

5. DSTWO can work with DSi and 3DS again.

Part II: (1% situation)

There is another situation, if DS and DSLite could not recognize the DSTWO too? Why this happen? It should be power off or reboot when upgrading the firmware. 

What should I do?

Please be careful when you upgrading(DO NOT power off/reboot), or maybe you will fail, it's very dangerous! But don’t worry if you had failed, we can fix by this way:

1, First at all, you need a DSLite or old fat DS.

2, Download the newest Fireware ver1.09 , EOSv1.11 and the newest dstwoupdate.dat file (please choose the correct region version for your cart), and copy them to the root of your microsd card.

3, Run dstwo_load_NDSL.nds which released by Supercard Team on a flashcart which can run homebrew(like DSONE/i, DSTWO, DSTT, R4), then you will get the follow screen:

Pull out your flashcart, and insert the DSTWO which need to be upgraded, then insert the microsd card which stores the newest firmware, EOS and dstwoupdate.dat file. Then press B to continue upgrading.

Note:

Why we insert microsd cart after insert DSTWO?

because some high-speed microsd card need much power. Then console may reboot when you insert cart which had been inserted microsd card.

Download：

dstwo_load_NDSL.nds 
Fireware ver1.09 
EOSv1.11