Firmware corrects an issue with Z1 and Z2 Autos manufactured before June 1, 2020 connecting to iPhone 11s to download data to the Nitelog mobile app. It does not affect the performance or functionality of the Z1 or Z2.

This program is designed to allow current owners of the Z1 or Z2 Auto CPAP, who are trying to connect their device to an iPhone 11, to get their firmware upgraded to version The program applies to Z1 and Z2 Auto CPAPs manufactured before June 2020. The date of manufacture can be found on the back label of the device and is expressed as MM-YYYY.

Note: this is only necessary if you have an iPhone 11. As of June 2020, no other iPhone or Android models are affected.

Please complete the form below. After you have completed the form, click the “submit” button. You will receive an email from us with a copy of the form in it. If you do not see the email, check your SPAM folder. Print out the email and enclose it in the package with your Z1 or Z2 Auto CPAP.

If this form is not included with your device, we will not be able to return the device to you. Please, make sure you properly protect the device for shipping and make note of your serial number for tracking purposes.

Questions? Please call customer service 855-436-8724 ext. 110.


Z1/Z2 Auto Firmware Upgrade for iPhone 11 Owners

  • Upgrading the firmware may not fix the fault codes above.