How to Use a Hot Air Gun – iPhone Motherboard Repair Tips

Rick Aug 18, 2021

Hot air gun is one of the most frequently used tools in phone repair and the technical requirements for technicians are also very high. Both soldering and desoldering of motherboard components require a hot air gun.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Today we will walk you through some basic knowledge of hot air gun in phone repair. In the first place, let’s take a look at the type of hot air gun.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Hot air gun can be divided into helical wind type and vertical wind type.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Helical wind type is mainly used to solder and desolder connector, NAND, CPU, WiFi module and other relatively large chips.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Vertical wind type is mainly used to solder and desolder small components like resistor, capacitor, etc..


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


The helical wind type features gentle airflow and low heat while vertical wind type has concentrated airflow and high heat.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Correct use of the hot air gun can enhance repair efficiency while incorrect use can damage the phone.

The temperature and airflow of the hot air gun must meet special requirements in different scenarios. The component can’t be removed or soldering will be defective if the temperature is set too low while components and PCB board will be damaged under high temperature.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


What’s more, components will get blown away if the airflow is set too high. Therefore, proper use of the hot air gun is the key to phone repair

Then we will show you how to use hot air gun properly for phone repair. First of all, let’s take a look at how to desolder small components. Vertical wind hot air gun is used to desolder these kinds of components.

The temperature should be set around 330 °C-365 °C and airflow around 1-3. Because the vertical wind hot air gun heats up so quickly, please wait to begin working until the temperature is stable after starting up.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


In addition, the nozzle should be kept vertical from the component with a distance of 3-6 mm. You should heat evenly above the component for about 13-18 seconds. Then remove the component with tweezers.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


For soldering, the soldering method is the same as the desoldering method. You need to put the component in position firstly and pay attention to the temperature as well as airflow.

Next, let’s see how to desolder large chips with hot air gun. Corner adhesive needs to be removed when we use hot air gun to desolder large chips like NAND. Helical wind hot air gun is used to desolder these kinds of large chips. Please apply high-temperature tape around the component to protect surrounding components.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


The temperature should be set around 365 °C-400 °C and airflow around 45-65. The nozzle should be kept vertical from the component with a distance of 6-8 mm.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


You should heat evenly above the component for about 40 seconds. Then pry up the component with a pry blade.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


In summary, the nozzle of hot air gun should be kept vertical from the soldering surface with a suitable distance. Other than that, the temperature and airflow of the hot air gun must be set properly according to the actual repair circumstances.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips

How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Please note that the temperature sometimes has to be adjusted according to the type of fixture. The synthetic stone fixture dissipates heat slowly, and the temperature can be lower.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


The iron fixture dissipates heat quickly, and the temperature should be set higher.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Most motherboard repairs will use a hot air gun. Choosing the right one will make your repair easier with high efficiency. Two in one hot air gun has always been a hot-selling product in the phone repair industry. REWA Selected recommends the 2 in 1 SUGON 8620 hot air gun to you.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


The hot air gun heats up quickly with multiple nozzles. You can easily switch between helical and vertical wind directly by changing the nozzle to achieve different application scenarios.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips

How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


Besides that, its design is also very user-friendly, easy to use, and easy to place.


How to Use a Hot Air Gun – iPhone Motherboard Repair Tips


You can purchase SUGON 8620 Hot Air Gun from REWA shop. Please feel free to leave your thoughts on the proper use of a hot air gun for phone repair in the comment section.

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