Все варианты прогнал с ALT также.
Единственное что прошло, это SP [SC7730..SC7731] eMMC [Crev / Android 6.x] без ALT, ито до окна переподключения, дальше подключается , но потом ошибка:
Operation : Read FullFlash [ v1.23 ]
Код:
1. Remove battery. Insert battery back
2. Press and hold 'VolumeUp' and 'VolumeDown' keys
3. Insert cable
==== Wait for phone...
Phone found! [ 43 ]
Port Opened
Sync...
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync...
Sending FDL
[Info] : If SW freeze here more, than 15 seconds - remove cable
FDL Ready!
Boot Ver : SC7731 Crev eMMC Loader v2.0
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!
FlashMode Set : Ok!
Detected eMMC Flash , Structure detect Ok!
[FW_READER] : Prepare Ok!
- > Wait phone connected ...
Phone found! [ 43 ]
Port Opened
Sync...
InitBoot Done [ 0x81 ] , Ver : SPRD3
Sync...
Sending FDL
[Info] : If SW freeze here more, than 15 seconds - remove cable
Boot failed!
[FW_READER] : Read Failed!
Error_Info : Boot not done! Check Driver and connection, charge battery!
Reconnect Power/Cable!