To recover a dead or bootlooping Motorola Moto M (XT1663) using Android 7.0 stock firmware, you must Smart Phone (SP) Flash Tool
Rescue and Smart Assistant (RSA): Download this tool from the Motorola Support Page. It can detect your device in Fastboot Mode (Volume Down + Power) and flash the correct stock ROM.
USB Drivers: Latest Motorola MediaTek USB Drivers must be installed on your Windows PC (7, 8, or 10). Flashing Process for Dead Recovery
Report: Motorola Moto M XT1663 Flash File – MT6755 Android 7.0 Dead Recovery & Signed Firmware
1. Device Overview
- Model: Motorola Moto M (XT1663)
- SoC: MediaTek MT6755 (Helio P10)
- Expected OS: Android 6.0 (Marshmallow) / Upgradeable to 7.0 (Nougat)
- Issue Addressed: Hard-bricked (dead), boot loop, secure boot failure, preloader hang
6. Common MT6755 Dead Boot Fixes
| Symptom | Fix |
|---------|-----|
| No power, no PC detection | Battery replacement / EDL test point (KCOL0 short to GND) |
| SP Flash Tool error STATUS_PRELOADER_INVALID | Wrong preloader; use signed preloader from correct region (CN/US/IN) |
| Error S_DL_GET_DRAM_SETTING_FAIL | DDR timing mismatch; use DA (Download Agent) from MT6755_Android_scatter |
| Error BROM ERROR: S_SECURITY_SF_AUTH_FAIL | Unsigned firmware; flash stock signed care firmware |
Disclaimer: Flashing modifies the core software of your device. This guide is for educational purposes. The author is not responsible for data loss, IMEI loss, or hardware damage. Always verify your model number (XT1663) before proceeding.
Connection: Click "Download," power off the device, and connect it to the PC while holding Volume Down (or sometimes both volume buttons) to trigger the MediaTek VCOM connection.
Flash Tool: The SP Flash Tool is the primary choice for MediaTek devices like the XT1663. Alternatively, Motorola’s official Rescue and Smart Assistant (LMSA) can automatically detect and download the correct firmware.