Enough with the chit-chat, where should you buy your phone? Let's delve into some basic knowledge about mobile phones from Biji.com.
What exactly are firmware flashing, bricking, unlocking, and jailbreaking?
Upgrades, firmware flashing, bricking, unlocking, jailbreaking, and network locks - what exactly are these? New users of smartphones may often hear terms like firmware flashing, unlocking, and jailbreaking. What do these "technical terms" mean? Let me explain them to you. Firmware flashing is simply understood as reinstalling the system. Bricking occurs due to improper firmware flashing, resulting in the phone being unable to turn on or enter engineering mode. The specific rescue method depends on the model. System upgrades are similar to OTA (Over-The-Air) updates, akin to the weekly MIUI system update, where users just need to connect to the internet for relevant operations.
What is a network lock? A locked phone usually undergoes customization by foreign carriers. To ensure their user base, carriers sign agreements with customers and guarantee they remain on the network for N years, while also adding a network lock to the phone itself. If such a phone is brought into the country, it requires unlocking the network restrictions; otherwise, it cannot be used. There are two methods of unlocking: soft unlocking and hard unlocking. Soft unlocking involves using software, while hard unlocking entails disassembling the device and soldering wires on the motherboard. These devices have no quality assurance, frequent malfunctions, and are not recommended for purchase.
Another concept is jailbreaking, which is often mentioned regarding iPhones. Users typically ask merchants to jailbreak their phones upon purchase. What exactly is jailbreaking? Jailbreaking essentially grants the highest level of access to the phone. Taking the iPhone as an example, after jailbreaking, one can install third-party applications and download software that usually requires payment. However, once jailbroken, if the phone encounters issues, it cannot be covered under warranty at official flagship stores and must be restored to factory settings.
What should you do if your phone won't charge?
Nowadays, the performance of phones has indeed improved, but standby time has significantly decreased. Charging daily is essential, and normal use lasts only a day. But how much do you know about charging techniques?
Since modern smartphones all use lithium batteries, there’s no need for a 12-hour initial charge; charge as needed. Additionally, avoid letting your phone automatically shut down before charging. In this situation, recharging via the data cable might fail. What can you do? You can remove the battery and place it on a charger for ten minutes to fully activate the power before reconnecting the data cable for normal charging. This method works well.
What is the difference between ROM and RAM?
For those who are new to smartphones and planning to buy one, you may not be very familiar with phone specifications. ROM and RAM differ by just one letter, but their meanings are different. Regulatory layers will guide self-residence purchasing demands to be steadily released step by step.
To put it simply, ROM is equivalent to the hard drive of a computer, corresponding to the physical storage space of a phone. RAM is like the memory stick in a computer, corresponding to the phone's running memory, but it is not separately existent; it is integrated with the phone's CPU. The teardown diagram of the Apple iPhone 4S demonstrates this point. Currently, in most smart devices on the market, RAM generally reaches 1GB capacity. The larger the space, the faster the phone handles tasks and the system runs.
That’s all for now. Through the introduction by Biji.com, you have gained some understanding regarding the daily use and selection of mobile phones. Friends planning to purchase a smartphone can learn more about this aspect of knowledge.