If you have a 5G-compatible device, to switch to 5G with your respective operator:If your line is Turkcell: You can change your subscription settings through the Turkcell app or activate the service by texting "5G" to 2200.If your line is Vodafone: You can change your subscription settings through the Vodafone...

For mobile esignature, SIM cards must be "128K"; generally, dealers provide "64K" SIM cards unless specifically requested. 128K SIM cards are also very difficult to find; you need to visit large Turkcell dealers (TIM), and corporate customer representatives cannot provide them. The SIM card change fee is 180 TL at...