Update Date:2010-01-26
This is the fake ak2i. They're using the "Actel" chip which we do not use for a very long time. We do not sale this type of ak2i anymore. The clone cart has to open a window at the back of shell to fit the chip. You can even feel them by touching the sticker. So if you buy one Ak2i like this now then it must be fake.
Here is the internal images of clone cart. By the way the PCB is also different from our older type of ak2i, which used "Actel".
Now here is the our real Acekard2i.
As you can see there's no window in the shell of real AK2i.
Now we're using new chip so that we do not have to open a window in the back of shell.
Here is a easy way to distinguish real one and clone one, using the latest official firmware or AKAIO. The clone one will be blocked.
Once again, weoffer one year warranty for real AK2 and AK2i. You can contact your reseller for a replacement for any issue of the real AK2 and AK2i. We do not guaranty any safe use of firmware on clone AK2 and AK2i, and on your DS or DSi. We won't offer one year warranty for clone ones in any case. Please pay attention when you're buying Acekard. Thanks
Update Date:2009-12-17
Fixed 4429, 4353, 4431, 4369, 4354, 4328, 4527 and 4543.
You can [download it here].
Update Date:2009-12-17
Fixed 4544,4551,4554 and 4561.
You can download [here].
Update Date:2009-12-04
You can download the new loader at [here]. Please download the file for your card and unzip it to your "__aio/loaders" directory on your card.
This loader is used by AKAIO and you can download the latest AKAIO at [here]. AKAIO is a pretty unofficial firmwar for AK2, AK2i, AKrpg and AK+.
Update Date:2009-11-18
There're many customers ask us about DSi version 1.4.please refer to http://gbatemp.net/index.php?showtopic=174523
If you've updated your DSi to 1.4 already then you have to find one DSi under 1.4 to run it.
If you've not updated your DSi then you can run ak2ifw_update_14_DSi.nds first then update your DSi to 1.4.
Thanks.
Update Date:2009-09-22
As well known unofficial firmware of AK2i, AK2 and AKrpg, the latest AKAIO had been released. This release is the biggest to date which over 100 game fixes, Wii connectivity, Trainer Toolkit support and so on.
Please refer to [here] for more informations.
Download it [here].
Update Date:2009-08-04
As all you known please do not update your DSi to 1.4. We're working on it and please be patient. Thanks.
Update Date:2009-06-01
This is AK2i。
This is the first type of AK2 and AK2i. It has a window in the shell.
Please notice the banner of the chip which AK2 and AK2i used. It called "Actel".
This is the second type of AK2 and AK2i. There's no window in the shell anymore.
Chip inside:
We're selling this type of no window now.
The chip on PCB of two types of the AK2 and AK2i.
This is another side of PCB. 
AK2 and AK2i both use the chip of "SST" and it's 48 pins. Some batches of AK2 used other banners of 48 pins chips. But all AK2i use this "SST" 48 pins chip.
Conclusion: 1. The chip on the back of the PCB is "Actel" or little black glue circle. This is very important.
2. The chip on another side of PCB is a 48 pins chip of "SST". Some batches of AK2 used other banners of 48 pins chips. But they're all 48 pins.
3. Please refer to the 2 items above as the main symbol of real AK2 and AK2i because the package of retail had changed many times.
We offer one year warranty for real AK2 and AK2i. You can contact your reseller for a replacement for any issue of the real AK2 and AK2i. We do not guaranty any safe use of firmware on fake AK2 and AK2i, and on your DS or DSi. We won't offer one year warranty for fake ones in any case. Please pay attention when you're buying Acekard. Thanks
Update Date:2009-06-01
Fixed white screen of 3049 and 3369. Please download it and replace it again.(You can just replace akmenu4.nds)
[download here]
Update Date:2009-05-28
AK2i update file for EUR/US DSi
This update file is to resolve the issue of AK2i can only be run on DSi which set language to English. You do not need to update if you're using JAP DSi.
How to use
1.Set the language of your DSi to English.
2.Copy ak2ifw_update_hw44.nds to your MicorSD card and put it to AK2i.
3.Launch AK2i and select to run the update file.
4.Follow the instructions of the update program to finish update.
Notice
This update file can be only used on AK2i which has HWID "44". You can press "start" then select "help" in AK's menu to check your HWID.
There're two HWID of AK2i. The update file for HWID "81" can be found at www.acekard.com/download.php#ak2.
[Download here]