This page provides a direct download to the Realme X in-depth testing APK file.
For a step by step guide, you can visit the Realme X bootloader unlock page.
Filename: DeepTesting_realme-X.apk Date Uploaded: 7th April 2020 MD5: 6a10ccd3d444ebed659ef390f36dac08
This is an unmodified APK provided by Realme. For the integrity, you can always check the MD5 hash value provided above.