Update firmware on gtowifi

For all devices

1. Download the latest firmware for your model here (All .tar.md5 files)
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   Note: You can find your model number on the back of your device!
2. Flash the just downloaded file using Odin. You can have a look at the recovery installation instructions if you forgot how to do that.
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   Note: The filename will give you a hint on which slot to flash each file to!

If you already installed a custom recovery

1. Download this downgrade package.
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   Warning: If you skip this step, your device will not boot!
2. Flash this file via Odin using the BL option.