Some services can help move a phone from one carrier to another (SIM unlocking), which is legal and does not involve changing the IMEI.
These apps are almost universally fake or intended for "Device ID" spoofing. Your Device ID (used by apps for tracking) is different from your IMEI (used by carriers). These apps will not help you bypass a carrier block. Myth 3: Custom ROMs can change the IMEI. google pixel change imei
Most people seeking to change an IMEI are trying to bypass a "blacklist" (a status given to stolen or unpaid devices). Attempting to circumvent this is often considered fraud. Some services can help move a phone from
Flashing a ROM like LineageOS or GrapheneOS changes the software experience, but it utilizes the existing firmware and baseband of the device. The IMEI remains unchanged. Risks of Attempting an IMEI Change These apps will not help you bypass a carrier block