Samsung SM-G9900 firmware update — April 2023 security patch. Build: G9900ZHU4EWD4. Includes the latest Android security patches and system stability improvements. Flash using Samsung Odin3.
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Verification & Details
Package Name:
G9900ZHU4EWD4
How to Flash Odin on Samsung Galaxy S21 FE 5G
Please follow these steps carefully to install the G9900ZHU4EWD4/G9900OZS4EWD4/G9900ZHU4EWD4 update safely. Ensure your device has at least 60% battery.
Download the G9900ZHU4EWD4/G9900OZS4EWD4/G9900ZHU4EWD4 Recovery ROM (.zip file).
Transfer the file to the internal storage root directory of your Samsung Galaxy S21 FE 5G.
Navigate to Settings > About Phone > System Update.
Tap the OS logo 10 times to enable advanced features.
Tap the top-right menu icon and select 'Choose update package'.
Select the downloaded zip file and wait for the automated installation to complete.