How to convert EC2 T2 instance to T3

1. Create snapshot of your ec2 instance volume (storage)
2. Install AWS CLI if not installed
3. Configure AWS CLI - set region, Access Key
4. run this command, replacing name, description and snapshot ID:

aws ec2 register-image --architecture "x86_64" --description "descr" --ena-support --name "name" --root-device-name "/dev/sda1" --block-device-mappings "[{\"DeviceName\": \"/dev/sda1\",\"Ebs\": {\"SnapshotId\": \"snap-123\"}}]" --virtualization-type "hvm"

5. Launch new instance from new AMI