As a tech enthusiast, I'm always excited to dive into the latest advancements, but sometimes, new technology comes with its own set of challenges. Unfortunately, these challenges can turn a fun experience into a frustrating ordeal, especially when the surrounding systems aren’t quite as reliable as they should be.<p>Recently, I decided to upgrade my SIM plan on O2, the UK's largest mobile network operator. At the time, I was using a physical SIM card but was intrigued by the idea of switching to an eSIM. eSIMs offer some great benefits, like the ability to use two numbers on a single-slot phone and the added security of not being physically removable, though the latter wasn’t my main concern.<p>I was using an Android device when I made the switch, and a few months later, I upgraded to a new Android phone. The O2 app allowed me to install the eSIM on my new device, but I quickly ran into trouble. Despite following the installation steps, my phone had no signal. The dreaded notification 'SIM 2 not provisioned' kept popping up. I tried everything—deleting and reinstalling the eSIM multiple times, leaving it overnight in hopes it would activate, and even turning off the old device to avoid conflicts. Nothing worked.<p>In a last-ditch effort, I deleted the eSIM from my old phone entirely, thinking that might solve the problem. But that only made things worse—now I couldn’t install the eSIM on any device. When I called O2 for help, they informed me that their system still registered my SIM as a physical one. To make matters worse, the system was stuck in a processing state, waiting for the eSIM installation to complete before moving forward. Their advice? Wait for 3-5 days for the process to time out because there was nothing else they could do—not even a visit to the store would help.<p>So here I am, stuck in a tech limbo, waiting for time to do what technology couldn’t. It’s a stark reminder that while new tech can be exciting, it’s not always smooth sailing.<p>What's your experience?