| '''Note''': This guide instructs you to replace only the screen while leaving the original frame and motherboard in place. However, some replacement screens for this phone come pre-installed in a new frame (a.k.a. chassis), which requires a very different procedure. Make sure you have the correct part before starting this guide. |
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| Opening the Huawei Mate 20 will '''damage the waterproof sealing''' on the device. If you do not replace the adhesive seals, your phone will '''function normally''' but will '''lose its water-protection'''. |
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| Due to the phone’s design, you need to remove the lithium-ion battery in order to remove the screen. '''Reusing a deformed battery after it been removed is a potential safety hazard. Replace it with a new battery.''' |
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| '''Before disassembling your phone, discharge the battery below 25%'''. The battery can catch fire and/or explode if accidentally punctured, but the chances of that happening are much lower if discharged. |
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| You’ll need '''replacement adhesive''' to reattach components when reassembling the device.[br] |