During the use of an iPhone, it is inevitable to encounter some issues, particularly the headache of screen display or touch failure. Below is a summary of some potential issues with the iPhone screen that you can check: 1. No Response to Touch If the iPhone display or part of the display is unresponsive, please … Read more
Last Issue Review: Playing with Raspberry Pi 3 + A Quick Test Playing with Raspberry Pi 3 + To Do a Good Job, One Must First Sharpen One’s Tools Playing with Raspberry Pi 3 + Configuration and Review of Bluetooth Microsoft has launched the Windows 10 IoT system for Raspberry Pi, and in the evaluation … Read more
Today I encountered a Lenovo computer from 2009 that only makes the sound of the CPU fan running at high speed on boot, but the monitor has no signal, and the mouse and keyboard lights are not on. Repeatedly switching it on and off has no effect. First, determine if there is a POST (Power-On … Read more
Micro-power DC-DC power modules are widely used in circuit design due to their high integration, high reliability, and simplified design. Although their application circuits are simple and easy to operate, some common problems are often encountered during application. This article provides a detailed analysis of the common application problems of power modules and how to … Read more
The power module, due to its modular design and high reliability, has been widely used in industrial communication, medical, power, and other fields. During the application process, some failure issues may arise, which can lead to the system failing to start or even burning out the circuit. So how can we quickly locate and resolve … Read more
Spent a week troubleshooting various environmental issues, thankfully there were no errors during the compilation, or I would have gone crazy. Pixel 4 Ubuntu 22.04 1. Syncing Code Since my computer can sync, I later tried to force sync directly and then bought 2TB of data, using scientific syncing or removing the proxy to use … Read more
Previously, I posted a help request regarding an LCD screen that had stripes. I suspected it was related to the screen cable or capacitor leakage. Therefore, I purchased a ribbon cable and driver board from Taobao, but the problem persisted. It seems the issue lies with the logic board. I wanted to check the VGH, … Read more
1. Reason Analysis: 1. The data cable connecting the monitor and the host may be loose or broken, leading to poor contact, or the monitor may be broken. 2. The metal strip of the graphics card inserted into the motherboard slot may have fallen off, rusted, or broken. 3. The metal strip of the memory … Read more
The methods described in this article draw from the experiences of predecessors and the practical operations summarized by Lao Mo. This document is organized to serve as a reminder, as they say, “Previous events can serve as a teacher for future ones.” This article only represents Lao Mo’s personal views, serving as a record for … Read more
The computer has been idle for a few days, or it was working fine before I left work yesterday, but today it won’t start. Symptoms – the fan turns on briefly and then stops, repeating this cycle. Alternatively, the computer might start but the screen remains blank. This issue is something I hear from customers … Read more