Nowadays, there are mainly three types of mobile SIM cards: SIM large card (commonly known as standard card), micro SIM card (commonly known as small card), and Nano SIM card (commonly known as mini card). Generally, the SIM card we purchase is a SIM large card, so only phones that use micro SIM cards or … Read more
Today, let’s talk about the radiation from base stations and mobile phones. Haha, has anyone felt a tremor? Nowadays, the news frequently reports about radiation here and radioactivity there, along with the continuously rising cancer rates, all claiming that it’s due to radiation, causing widespread panic. Especially in our communications industry, where we deal with … Read more
Communication History Series 833 – Who Was the First Mobile Phone to Support Bluetooth in the World – 2001 July 26, 1999: The “Special Interest Group (SIG), led by Ericsson, officially announced Bluetooth version 1.0A, operating in the 2.4GHz frequency band. 2000: Ericsson announced the world’s first mobile phone to support Bluetooth, the Ericsson T36. … Read more
When a phone screen is damaged, the usual repair involves replacing the screen. The cost varies depending on the phone model, and there are differences in pricing between official service centers and third-party repair shops.Generally, phone screen damage can be categorized into two types:1. Outer Screen DamageIf the phone screen displays and responds to touch … Read more
Introduction If you are using a mobile phone, you might have encountered a situation where the memory card is damaged and cannot read the contents on the card. I faced this issue myself. This morning, I found that the TF card installed in my Xshot could not be read, and there were many photos that … Read more
Have you ever experienced the awkward moment when you eagerly turn on your computer, ready to start your day of work or entertainment, only to find the monitor is completely black while the computer is running normally, buzzing away? This “blind operation” can be frustrating, wasting our time and affecting our mood. Don’t worry, today … Read more
WeChat public account reply: Analysis, there are a lot of mobile phone repair materials Repairing the touch backlight of the iPhone 6S The backlight power is supplied by the boost IC-U4020, and the output power signal is sent through inductors FL4211 FL4212 FL4213 to the display screen interface J4200. Unlike the iPhone 6, there are … Read more