Upgrade OnePlus Ace 3 from PixelOS 14 to PixelOS 15

• 中文：将一加 Ace 3 从 PixelOS 14 升级到 PixelOS 15

Required files #

• PJE110domestic_11_14.0.0.317CN01_2024012904340000.zip (Click All Packages: DOWNLOAD. Log in a Google account if you can’t download.)
• ColorOS PJE110_15.0.0.500(CN01) C.32 全量包 (Copy the link of 官方链接 and use aria2 or Aria2App to download the file.)
• 1.3.zip and prog_firehose_ddr.zip (Download files from How To Guide - [12R/Ace 3] EDL DownloadTool to restore your device to OxygenOS/ColorOS | XDA Forums.)

Steps #

1. Backup apps and data using DataBackup (root required, optional step).
2. Follow How To Guide - [12R/Ace 3] EDL DownloadTool to restore your device to OxygenOS/ColorOS | XDA Forums to flash PJE110domestic_11_14.0.0.317CN01_2024012904340000.zip.
3. Flash ColorOS PJE110_15.0.0.500 using local install on ColorOS 14 (flash ColorOS 15 the first time). Try General - General Local install issues on system updater and how to fix it | XDA Forums if local install is gray in the system updater.
4. Flash ColorOS PJE110_15.0.0.500 using local install on ColorOS 15 (flash ColorOS 15 the second time).
5. Flash PixelOS 15 following the instructions on the website.
6. Restore data using DataBackup (optional step).

This post was shared on XDA forum.