Category Smartphone & Pad Repair Guide

Xiao mi 11 WiFi can't be used. This kind of fault can still be said to be a common fault of Xiaomi 11. The pot of Snapdragon 888 is likely to be a fault caused by CPU virtual welding. The specific maintenance process is as follows:

IPad mini4 A1538 does not turn on or charge. “Machine model” iPad mini4 A1538 【 Fault Phenomenon 】 No power-on and no charging [Maintenance process] I received an iPad mini4 tablet, model A1538, which was sent by a customer for…

Huawei mate x2, the phone got water after getting wet, the speaker was hoarse, and the tail plug was changed after the sale; However, after a period of use, the mobile phone suddenly lost its signal, and the after-sales notification was a motherboard problem. After a series of problems appear, how to solve them? Then give it to our maintenance master!

Second, repair an iPhone 13 that won't turn on after a heavy fall. After disassembly, it is found that there is a concave layer on the lower layer of the motherboard. Observe by layers. The specific repair process is as follows:

First test whether there is a short circuit on the motherboard, and then look at the current on the single board if there is no problem with the resistance. This current, together with the Dragon 888CPU on Xiaomi 11Pro, must be a problem with the CPU. Remove the CPU and replant the tin.

The customer described that the charging of iPhone 11 crashed, and it could not enter the system after restarting. After checking the restart report, the fault point was found immediately. The specific maintenance process is as follows:

How to break the black screen of Xiaomi 11ultra without turning it on? Teach you a trick to solve it! “Machine model” Xiaomi 11ultra [Fault phenomenon] No boot. [Maintenance process] I received a Xiaomi 11ultra from a customer. The fault…

The customer described that after the iPhone 11 Pro Max fell, a series of failures began to appear, such as the phone was stuck and the handset was abnormal. After preliminary testing, it was determined that the failure was on the motherboard, and the specific maintenance was as follows:

The customer described that the mobile phone stopped turning on after heavy fall. After being overhauled by the master, the CPU was directly locked, and the fault was perfectly repaired.