When assembling the housings its very likely that there may be a button or another smaller part that wont be working as it should which is just due to the nature of the product and can be from disassembly and re assembly despite testing.
The "Apple iPhone 11 Rear Housing Chassis Frame Cover & Parts OEM" would be an ideal fit for those who want to upgrade or customize the rear housing of their iPhone 11, ensuring the protection and appearance compatibility with their preferred cover or case.