Tag Smartphone & Pad Repair Guide

IPad Air 4 is not charged and turned on (PD chip CD3217 is damaged) [Fault model] iPad Air 4 【 Fault Phenomenon 】 No charging, no startup [Maintenance process] I received a machine sent by a customer for repair, the…

A Huawei p40Pro, the fault is not turned on, which is caused by temporary storage damage. How to repair it specifically? Let's take a look at it in detail!

This machine is a second repair machine, and the fault is that there is no baseband. After the initial overhaul, the CPU has traces of maintenance, and it flies directly. The specific maintenance process is as follows:

IPhone13 Pro, the obstacle is to display a white screen; Disassemble the machine, find these two contact pads, scrape these two points from left 8 and right 6, and then fly the wire directly. After flying the wire, the startup test shows that it is back to normal. What are the specific maintenance steps? Just read on!

IPhone11 can’t brush more than 80% (the middle layer is soldered, and the baseband is not recognized) [Fault model] iPhone11 [Failure phenomenon] The brush machine fails to brush 80%. [Maintenance process] I received a machine sent for repair by my…

IPhone 12 Pro Max was released by Apple in 20 years.mobile phoneAt that time, this expensive price didn't dampen the enthusiasm of fruit fans (fans of Apple's electronic products). Many people started it one after another and couldn't put it down after they got it, but we never know which will come first, the accident or tomorrow. Maybe in the next second, your beloved iPhone 12 Pro Max will leave your palm, fly far away and finally fall to the ground! Pick it up and find that the phone has no baseband? Let's talk about the Apple 12 baseband maintenance method today!

A Huawei Mate 20 Pro with poor card signal and sometimes disconnected network.mobile phone When disassembling the machine, it was found that the coaxial line between the main board and the tail plug-in small board was loose. After plugging the coaxial line again, the test signal returned to normal after starting the card.

Apple iPhone12, the fault is not turned on,mobile phoneIf you fall, you won't turn it on, and there is no response when you plug in the data cable; Because it is a fallen machine, we have to consider whether there are other problems caused by virtual welding in the middle layer, so we directly layer it. See below for specific steps: