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zll

Joined: 2021-11-01
Articles: 531

Laptop Repair Guide

Lenovo ThinkPad X1 Carbon notebook does not trigger repair

Lenovo ThinkPad X1 Carbon notebook does not trigger repair Machine model: Lenovo ThinkPad X1 Carbon notebook computer Main boardNo.: 14282-2M, which integrates the machine of i5 6th generation. Lenovo ThinkPad X1 Carbon notebook does not trigger maintenance Figure 1 Fault phenomenon:…

zll
2023-05-02

Blog

Huawei Mate 30 Pro screen does not show repair

Huawei Mate 30 Pro screen does not display, and the motherboard is installed in another screen assembly for testing, but the screen still does not display, so it can be determined that it is a motherboard problem.

zll
2023-05-02

Smartphone & Pad Repair Guide

Huawei Mate 40 Pro can’t start machine maintenance after heavy fall

Disassemble the motherboard, open the shielding cover, and find that several inductors have fallen off, and several inductors on the edge of the power chip have fallen off by virtual welding. Considering that the CPU is prone to virtual soldering after the mobile phone falls heavily. So take off the CPU, the current on the single board is normal, and put the CPU back.

zll
2023-05-01

Laptop Schematics

The Schematic, Circuit Diagram PDF file for Drawings of Shenzhou Ares z7-kp7s1

The Schematic, Circuit Diagram PDF file for Drawings of Shenzhou Ares z7-kp7s1 File info Pages: 37 Format: PDF File Size: 1.70MB Schematic Preview Download Download XinZhiZao maintenance software to view the full MSI Motherboard 7640-14-0622 Schematic Diagram.

zll
2023-04-28

Smartphone & Pad Repair Guide

Red rice Note 9 Pro can’t be charged for repair

Disassemble the back shell of the mobile phone, plug in the data cable and use a multimeter to measure that the tail plug cable at the motherboard end has a 5V voltage input, indicating that the non-charging fault has nothing to do with the tail plug small board and the cable, and it can be determined that there is something wrong with the motherboard.

zll
2023-04-28

Laptop Schematics

The Schematic,Circuit Diagram PDF file for Lenovo THINKPAD E450 NM-A211 REV 1.0

The Schematic, Circuit Diagram PDF file for AIVE1 NM-A211 REV 1.0 circuit diagram File info Pages: 37 Format: PDF File Size: 1.70MB Schematic Preview Download Download XinZhiZao maintenance software to view the full MSI Motherboard 7640-14-0622 Schematic Diagram.

zll
2023-04-27

Smartphone & Pad Repair Guide

IPhone 11 can’t connect to WiFi and bluetooth repair

IPhone 11 can’t connect to WiFi and bluetooth repair Machine model: iPhone 11 Symptom: iPhone 11 can’t connect to WiFi and Bluetooth. IPhone 11 can’t connect to WiFi and bluetooth for maintenance. Figure 1 Maintenance process: After receiving the iPhone…

zll
2023-04-27

Desktop PC BoardView, Desktop PC Schematics, Laptop BoardView, Laptop Schematics

The Schematic, Circuit Diagram PDF file forLenovo Y9000P 2021 NM-E231 drawing

The Schematic, Circuit Diagram PDF file for Lenovo Y9000P 2021 NM-E231 drawing

zll
2023-04-26

Smartphone & Pad Repair Guide

Xiaomi 11 Youth Edition cannot be charged for repair.

Borrow a charging chip directly from another mobile phone of the same model to be repaired. After installing it, it is tested that the charging is normal, indicating that there is something wrong with the original charging chip of this machine, so replace the charging chip.

zll
2023-04-26

Laptop Schematics

The Schematic, Circuit Diagram PDF file for Dell Latitude E520,E5470,E5570 And Precision 3510 – LA-C621P – LA-C641P – LA-C64

The Schematic, Circuit Diagram PDF file for Dell Latitude E520,E5470,E5570 And Precision 3510 - LA-C621P - LA-C641P - LA-C64

zll
2023-04-25