Before purchasing, it is important to verify the device model for which the part is intended. Compare the desired model with the description in the title. If you cannot identify the model (in format, e.g., Axxx F/G/M, etc.) in the settings, use the IMEI number to find it. This process ensures that you get the correct part for your device. Service Pack refers to original spare parts provided by the manufacturer and are identical to those installed at the factory in the device. Using a Service Pack guarantees that the repair is done with high-quality components, ensuring optimal performance and durability. Information for B2B customers: This product must be programmed using the diagnostic function. Please note that once the programming process is completed, the battery is permanently linked to the device. As a result, returns of the purchased product are not accepted.