Samsung W2021 (SM-W2021) - CHC - W2021ZCS5GXA1 firmware
Samsung W2021 firmware W2021ZCS5GXA1 is the Android 13 build for the Samsung W2021 (model SM-W2021), released by Samsung for China (Open China) (CHC). It was built on 10 January 2024, carries the 2023-12-01 Android security patch, has changelist 968090. The package combines system build W2021ZCS5GXA1 (AP/PDA) with CSC build W2021CHC5GXA1 for the CHC region code. SamMobile added this file to the firmware archive on 28 January 2024.
How to flash W2021ZCS5GXA1 on the Samsung W2021 (SM-W2021)
We recommend updating through Samsung's own tools: over-the-air (Settings › Software update) or Samsung Smart Switch on a PC. Flash the full firmware with Odin only when you are sure about the risks. A wrong region or a failed flash can brick the device, and SamMobile is not responsible for any damage.
- Download the firmware package above and extract the ZIP. It contains the AP (PDA), BL, CP and CSC files, plus a HOME_CSC file.
- Download and extract Odin on a Windows PC, and install the Samsung USB drivers if the PC does not detect the phone.
- Switch the device off and boot it into Download mode (usually Volume Up + Volume Down while connecting the USB cable, or Volume Down + Bixby + Power on older models).
- Open Odin. The ID:COM box turns blue when the device is connected.
- Load the files in their slots: BL, AP, CP and CSC. Use HOME_CSC to keep your apps and data, CSC to wipe the device.
- Leave Re-Partition unticked and click Start. The device reboots when Odin shows PASS. The first boot after a flash can take a few minutes.
Step-by-step PDFs: 5-file firmware and 1-file firmware.
What the build numbers mean
PDA / AP (W2021ZCS5GXA1) is the Android system build; its last three characters encode the year, month and revision. CSC (W2021CHC5GXA1) is the region and carrier configuration, and CP is the modem firmware. The product code CHC identifies the region or carrier this package was made for (China (Open China)). Flashing a package for a different product code changes carrier features and can be refused by the bootloader, so pick the one that matches the CSC shown under Settings › About phone › Software information.