⚠️ According to the Release Notes at page 8-9:
“The firmware downgrade of a camera running firmware 8.90.0036, or higher, into the version 8.48.0017, or lower, will generate a factory reset of the camera. This limitation is created due to the fact that former versions of firmware were using a different version of Operational System (Android 8). Because of the factory reset, the camera would delete all configuration settings, so in order to prevent our customers to get their configuration deleted without proper awareness we introduced a mechanism that doesn’t allow the downgrade from a firmware using Android 10 to a firmware version based on Android 8”
For the Firmware downgrade process from v8.91 to v8.45, perform the steps from the following guide:
1. Download and upload the below FW:
https://downloadstore.boschsecurity.com/FILES/CPP13_FW_8.90.0037.fw
In case the Error 111 is displayed during the Firmware downgrade process, please proceed with the below steps in order for the camera’s minimum FW to change:
2. After camera is downgraded to FW 8.90, please download, and apply the below FW:
https://downloadstore.boschsecurity.com/FILES/CPP13_FW_8.45.0032_INTEOX.fw
⚠️ Disabling the downgrade to an Android 8 based firmware version:
Note: Some of the above-mentioned issues are deviations from the datasheet.