Tizen Developers

# Step 1: Delete all the existing certificates.

# Step 2: Set the Correct Date & Time in both device and PC. In your device, Turn on USB Debbuging.

# Step 3: Connect the device, Accept connection request in device end. make sure it's on your connection explorer in Tizen Studio.

# Step 4: Create new Author certificate, Distributor certificate, Add the device, Set the Profile active.

# Step 5: Right click on your device in connection explorer, "Permit to install apps"

# Step 6: Clean, Build & Deploy project.

This guide would be helpful:

http://developer.samsung.com/z/develop/getting-certificates/create

You need to check 2 things.

1. Which type of certificate you are using. 'Tizen' or 'Samsung'. for the Samsung mobile/wearable devices, you should use 'Samsung' cert.

2. Whether you perform 'Permit to install apps' on your device or not.

Thanks for your answers

This may be a bit late, but could help future developers. I had a similar error after correctly creating a Samsung author and distributor (PUBLIC) certificate for an S3 device. I tried everything under the sun to get an app installed without a similar signature error. What helped with me was to make sure that the watch was paired to a phone while installing the app. Pretty weird..

Rich

If you follow these instructions you won't be able to upload new versions of your app.... They have to be signed by the same certificate -_-.