Hi NXP Support Team,
Issue Report:Android Automotive 13.0.0_2.3.0 (Linux 6.1.36_2.1.0 BSP) → Android Automotive 14.0.0_1.1.0 (LF_v6.1.55 BSP) OTA Upgrade Failure (A/B Slot Switch Stuck in Bootloader)
**Environment:**
* Source Version (Working):
* Android Automotive OS: 13.0.0_2.3.0
* BSP: Linux 6.1.36_2.1.0
* Target Version (Upgrade):
* Android Automotive OS: 14.0.0_1.1.0
* BSP: LF_v6.1.55
* Build Type:
* userdebug (both source and target builds)
* Hardware Platform:
* i.MX8Q (mek_8qxp mek)
---
**OTA Package Details:**
* OTA Type: A/B OTA (payload.bin based)
* Payload Location:
```
/data/ota_package/payload.bin
```
* Properties File:
```
/data/ota_package/payload_properties.txt
```
---
**OTA Command Used:**
```
update_engine_client \
--payload=file:///data/ota_package/payload.bin \
--update \
--headers="$(cat /data/ota_package/payload_properties.txt)"
```
---
**Observed Behavior:**
1. OTA update process completes without immediate errors.
2. Device reboots after update.
3. Active slot changes:
```
getprop ro.boot.slot_suffix
_a → _b (expected behavior)
```
4. However, device does NOT boot into Android 14.
5. Device gets stuck in bootloader loop:
```
U-Boot SPL 2023.04 (May 01 2026 - 15:11:21 +0530)
Normal Boot
Trying to boot from MMC1
Authentication key not yet programmed
Booting from bootloader_b...
```
(Repeats continuously)
---
**Additional Observations:**
* Before OTA:
```
getprop ro.build.version.release
13
```
* After reboot:
* Slot switches correctly
* But Android userspace never comes up
Please let me know if any additional logs or details are required.
Thank you for your support.
Best regards,
Harish K
