| Manufacturer | Infinix |
| Model | infinix-x6851b |
| Installs | Infinix/X6851B-OP/Infinix-X6851B:15/AP3A.240905.015.A2/138020:user/release-keys |
| Updates from | Infinix/X6851B-OP/Infinix-X6851B:15/AP3A.240905.015.A2/130004:user/release-keys |
| Security patch | 2025-07-05 |
| SDK | 35 |
| Size | 665.8 MB |
| Install method | Seamless A/B (A/B) |
| Updated partitions | odm_dlkm product system system_ext vendor vendor_dlkm |
| Build date | 2025-08-13 |
NOTE 40 Pro+ 5G — AP3A.240905.015.A2
Release notes
Please plug in charger to OTA upgrade when power is lower than 50%.
Update Version:
X6851B-15.1.0.138SP09(OP001PF001AZ)
Fixed Issues:
1. Improved system stability and running smoothness.
Reminding:
1. Optimized system stability and performance while fixing other issues.
2. Visit the XClub forum (https://www.infinix.club) for more information.