Flashing Error Decoder
Decode flashing errors into repair direction.
Reference catalog of common SP Flash Tool, Odin, QFIL, Fastboot, MTKClient, UFI, and EasyJTAG error codes. Each entry gives diagnostic direction and required evidence — not a guaranteed fix. Every direction is reference_only until you confirm on your bench.
| Tool | Error Code | Direction | Check Priority | Risk |
|---|---|---|---|---|
| SP Flash Tool | BROM ERROR : S_BROM_CMD_STARTCMD_FAIL (4032) |
BROM is not responding to handshake. Most common cause: incompatible preloader, wrong scatter, or USB driver mismatch. Less common: damaged USB connector or PMIC. |
▸ Verify scatter file matches exact model ▸ Confirm preloader in package matches device ▸ Re-install MTK VCOM driver ▸ Try different USB-A 2.0 port ▸ Check current draw on plug-in |
Risk: High |
| SP Flash Tool | BROM ERROR : S_DA_HANDSHAKE_FAILED (2003) |
Download Agent handshake failed. DA in firmware package may not match BROM version, or auth file/cert is wrong. |
▸ Confirm DA file matches MTK chipset generation ▸ Check if device needs Auth File / Cert ▸ Verify scatter file is correct revision |
Risk: Medium |
| SP Flash Tool | BROM ERROR : S_NOT_ENOUGH_STORAGE_SPACE (8417) |
Target partition smaller than file size. Wrong region/build firmware loaded onto device. |
▸ Compare device storage size (eMMC vs UFS) to firmware scatter ▸ Check region — global vs China vs India variants differ ▸ Verify exact model number |
Risk: Medium |
| Odin | FAIL! (SW REV check fail) |
Firmware binary/SW REV is lower than current device binary. Cannot downgrade Samsung binary level. |
▸ Read current device SW REV via *#1234# ▸ Use firmware with equal or higher BL revision ▸ Never force-flash older binary — fuse risk |
Risk: High |
| Odin | FAIL! (vbmeta verification failed) |
AVB (Android Verified Boot) signature mismatch — usually after mixed firmware components or unofficial vbmeta. |
▸ Use vbmeta from same firmware package ▸ Verify CSC matches region ▸ Check if device has bootloader unlocked (changes vbmeta logic) |
Risk: High |
| Odin | FAIL! (super partition mismatch) |
Dynamic partition layout mismatch — firmware super.img does not match current super partition definition. |
▸ Use complete firmware package (AP, BL, CP, CSC) ▸ For Samsung A/B devices, confirm slot ▸ Avoid mixing super.img across builds |
Risk: High |
| QFIL / EDL | Sahara fail - no response from device |
Sahara protocol handshake failed. Device may not be in true 9008 mode, USB driver wrong, or firehose loader incompatible. |
▸ Confirm device shown in Device Manager as "Qualcomm HS-USB QDLoader 9008" ▸ Use firehose programmer matching exact chipset ▸ Try slower USB port (2.0 not 3.0) |
Risk: Medium |
| QFIL / EDL | Firehose fail (sahara passed) |
Firehose loader loaded but flashing failed. Most likely storage init / partition mismatch. |
▸ Verify rawprogram XML matches device storage type (eMMC vs UFS) ▸ Check storage health via firehose peek/poke if available ▸ Try different storage operation order |
Risk: High |
| Fastboot | FAILED (remote: dtbo partition not found) |
Trying to flash dtbo to a device that does not have separate dtbo partition. |
▸ Some older devices include dtbo inside boot.img ▸ Skip dtbo flash for these models ▸ Verify partition table via "fastboot getvar all" |
Risk: Low |
| Fastboot | < waiting for device > |
Fastboot driver not detecting device. Could be driver, cable, USB port, or device not actually in fastboot mode. |
▸ Run "fastboot devices" — empty output means driver issue ▸ Re-install Google USB Driver / OEM USB Driver ▸ Try different USB cable + port ▸ Confirm device says "Fastboot Mode" on screen |
Risk: Low |
| MTKClient | No preloader detected — timeout |
Device not entering BROM. Could be preloader still alive (need to short test point), or dead preloader. |
▸ Use known test point procedure for exact model ▸ Confirm device shows as "MediaTek USB Port" briefly ▸ Battery should be at safe charge level |
Risk: Medium |
| UFI / EasyJTAG | eMMC not detected on CMD line |
Tool cannot establish CMD/CLK handshake with eMMC. Power up okay but no register read. |
▸ Measure VCC (~3.3V), VCCQ (~1.8V) on chip ▸ Check CLK signal with scope ▸ Check CMD line continuity to SoC ▸ Inspect for solder bridges |
Risk: High |
| UFI / EasyJTAG | EXT_CSD read fail / corrupted |
eMMC initializes but EXT_CSD register read corrupted. Often indicates pre-failure or unstable storage IC. |
▸ Try lower bus speed ▸ Multiple read attempts and compare ▸ Check VCCQ stability on scope ▸ Plan for chip replacement evidence path |
Risk: High |
Important
Direction ≠ Fix.
Every entry above is documented diagnostic direction — what to check next. None of these are guaranteed repairs. Every operation requires bench evidence (tool log, current reading, voltage measurement, board photo) before being marked verified in a repair case.
Missing an error? Submit it via the Firmware Request page so the admin team can add it after source verification.