Huawei Honor 20 PRO Teardown Step by Step Guide

For Huawei Honor 20 PRO users who need repair or upgraded components, accurate disassembly is a key prerequisite to avoid hardware damage. This model has a compact internal structure, dense layout of fingerprint module, battery and cable, and blind operation can easily cause irreversible damage. Therefore, disassembly needs to follow the principle of "safety first, step-by-step operation". Each step needs to be equipped with special tools and avoid risks. The following is a detailed step-by-step disassembly process.Preparation and power outage
Two basic preparations must be completed before disassembly: one is to exhaust the battery of the mobile phone or turn off the power, completely cut off the power, and avoid short circuits during disassembly; the other is to prepare all the tools you need. Once ready, place the phone on a soft Cleaning Cloth to prevent scratches on the body.
Separate back glass
1. First use a digital hot air gun, adjust the temperature to 80-100℃, adjust the wind power to the middle gear, heat evenly against the edge of the glass on the back, and control the heating time to 2-3 minutes. During this period, the heat gun must be continuously moved to avoid excessive local temperature damage to the fingerprint recognition module below.
2. After heating is completed, immediately use the screen separation suction cup to tightly adsorb the center of the back glass, and gently lift it up until a slight gap appears between the glass and the middle frame.
3. Take out the thin blade pry from the professional Phone Disassembly Tool Set, insert it into the gap, slowly cut the remaining colloid along the edge of the middle frame, and the force should be light when slashing, and the blade pry should be fitted with the middle frame to prevent the fingerprint recognition cable connected under the glass from being broken.4. After the colloid is completely cut open, slowly lift the glass on the back. Note that the glass still has a cable connection between the body and cannot be pulled directly. You must first disconnect the fingerprint recognition cable interface and then remove the glass.
Disassemble the middle frame and sorting storage screws
1. After opening the glass on the back, you can see that there are multiple Phillips screws of different specifications distributed on the middle frame. Choose a matching model of Phillips screwdriver from the professional mobile phone disassembly tool set, and unscrew the screws one by one in the "diagonal order" to avoid deformation caused by uneven force in the middle frame.
2. Every time you unscrew a screw, immediately put it in the corresponding lattice of the Magnetic Storage Pad and mark the specific screw position on the storage pad label to prevent misinstallation during subsequent assembly. If screws of different lengths are mixed, they may be pushed through the motherboard.
3. After the screws are removed, use the plastic spudger in the tool set to gently lift all the cables connected to the middle frame and the motherboard from the side of the cable interface. When picking, you need to exert force vertically upward to avoid damaging the interface.
4. After confirming that all cables are disconnected, gently lift the edge of the middle frame with your fingers, slowly remove the middle frame, and place it on a dust-free cloth for later use. Disassemble the motherboard
1. After the middle frame is removed, the motherboard is exposed. At this time, the first task is to disconnect the battery cable: use a Nylon Spudger to carefully protrude the battery cable interface, completely cut off the power supply of the motherboard, and prevent the components from being burned due to live during subsequent operations.
2. In the order of "from left to right, from top to bottom", disconnect the cables connected to the motherboard such as camera, screen, tail plug and other components in turn. For each disconnection of a cable, you need to gently move the components to confirm whether they are completely disconnected.
3. Find the screws that fix the motherboard, unscrew them with a Phillips screwdriver, and place the screws in the storage box and mark the position.
4. Use your fingers to gently pinch the edge of the motherboard and lift it up slowly. If you encounter lag, you cannot force it to break. You need to use a thin pick to gently assist in prying at the bottom of the motherboard, and avoid the small capacitors and resistors around it to prevent scratches and cause the components to fall off.
Safe disassembly of the battery
1. The Honor 20 PRO battery is fixed in the body with strong adhesive glue. When disassembly, the wide plastic pick must be taken out from the special battery pick set, and slowly inserted it from the gap at the edge of the battery. The insertion depth is controlled to 1-2 mm to avoid piercing the battery.
2. After inserting the pick, gently pry upwards to gradually disengage the glue from the body. During the process, you need to constantly change the pick position to ensure that the edge of the battery is uniformly subjected to stress and prevent the local pressure from being too large, causing the battery to bulge.
3. If the glue is too sticky, apply a small amount of special adhesive agent to the contact point between the pick and the glue, wait for 1-2 minutes before continuing to pry. It is strictly forbidden to use metal tools or squeeze or pierce the battery.
4. After the battery is completely removed from the body glue, gently pick up the battery with your fingers. Note that there is still a cable connection at the bottom of the battery. You must first disconnect the cable interface and then remove the battery. After removing it, place the battery flat on the dust-free cloth to avoid folding or collision.Separate the screen (if you need to change the screen)
1. If you need to disassemble the screen, first fix the body to the maintenance bracket, use a digital heat gun to heat the edge of the screen, and adjust the temperature to 70-90℃ (lower than the temperature of the glass on the back), and the heating time is about 2 minutes. During this period, you need to touch the edge of the screen with your hand to confirm that the glue has softened and stop heating.
2. Use the Phone Screen Separator Suction Cup to suck the center of the top of the screen, gently lift it upwards, and after forming a tiny gap, insert a thin pick and slowly cut the colloid along the edge of the screen.
3. When scratching the glue to the bottom of the screen, you need to slow down because there are usually screen cables here. You need to use a spudger to carefully lift the cable interface, and then continue to dial the remaining colloid to avoid damage caused by direct contact with the cable.
4. After the screen is completely separated, place it flat on a soft dust-free cloth with the screen facing up to prevent the lower cable from being pulled and broken, while avoiding the screen being squeezed.Conclusion
The core of the disassembly of Honor 20 PRO is to operate carefully and use the right tools. You need to be careful about the damaged parts at every step. If you encounter unsolvable problems during disassembly, it is recommended to stop the operation and seek professional help. If you need a more professional mobile phone repair tool, please consult Phonefix.