Simyo is performing an upgrade for Prepaid users, the provider announced on Monday. Customers are transferred free of charge from a 3G to a 4G connection. Prepaid customers are automatically transferred to 4G on KPN’s network from 7 May, Simyo writes. The upgrade is expected to be fully completed by the end of May. These customers receive an e-mail with more information. The speed increases with the switch to 4G. With Simyo, 3G has a speed of 7 Mbit per second. This is increased to a maximum of 256 Mbit per second. In addition, the internet will become more stable and the range will also be better indoors. Customers who have a phone that does not support 4G can continue to use the 3G network.