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Old license can't be use in SDK6.0.0?

It is work in 5.x but tips "License key is missing or invalid" if I change old SDK the version 6.0.0.

The platform is Android.

Hello He,

Since SDK is an new version then the old license key you have for older versions, like 5.x, is not working any more. You need a new license key and if you wish to test our new features introduced in SDK 6, like Instant Tracking, then you need to send an email at and request a key.



Hi ,thanks for your reply.

I have required a trial license key for SDK 6 and test the instant tracking.The new feature is very nice.

But maybe I needn't  the feature at present.The purpose to update the SDK version is that old SDK didn't judement wheather the camera is null ,which leads to a NullPointerException when call the 

getCameraParameter and my application crash.

I have found that it is fixed in SDK 6.0.0.So I update the SDK.

If I want to use the newest SDK, I must buy the liscense with InstantTracking?

Yes,the new feature is very cool and I am more likely to buy it.but not present.So can you provide a new license don't include the instant tracking?

Hi He,

Please write an email to and include the number of your invoice.



Thx,I have send the email.Please pay attention to check E-mail.

Where can I find a link to download the old SDK versioned 5.3.0 

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