Chm-u01 Firmware Scatter [exclusive] Info
A typical line from the CHM-U01 scatter looks like this:
If the preloader partition is damaged (e.g., wrong flash tool settings, interrupted OTA), the device becomes — no vibration, no download mode. Using the scatter file in SP Flash Tool with "Download Only" or "Firmware Upgrade" mode can revive it, provided you force preloader reflash (sometimes requiring testpoint or battery removal). Chm-u01 Firmware Scatter
| Error Code | Meaning | Solution | | :--- | :--- | :--- | | | Driver conflict or wrong preloader | Reinstall MTK VCOM drivers; Disable driver signature enforcement on Win 10/11. | | S_BROM_DOWNLOAD_DA_FAIL (2004) | Preloader mismatch in scatter | Find a scatter file from the exact same build number (e.g., Chm-u01 V100R001C185B110). Do not mix builds. | | STATUS_SECURITY_CHECK_FAIL (6045) | Auth file required (Secure Boot) | The device has a secure bootloader. Use SP Flash Tool with an "Auth" file or use a "preloader patched" ROM. | | Error 0xC0000006 | USB disconnection | Use a USB 2.0 port (not 3.0) and a short, thick USB cable. | A typical line from the CHM-U01 scatter looks
. This requires an XML configuration file rather than a standard MTK scatter file. 3. Common Firmware Versions | | S_BROM_DOWNLOAD_DA_FAIL (2004) | Preloader mismatch in
