tyyh2020 Unlock bl OK,but ROOT fail

[mjkillly]

According to the code of tyyh2020 branch,the machine can boot into system with unlock status.But it is not able to flash the fixed-boot partition via Magisk App in fastboot mode.

Here is the log of unlocking:

`E:>spd_dump_3f88 fdl fdl1-no-verify-dl.bin 0x5500 fdl uboot-mod.bin 0x9efffe00 exec read_part sml 0 1M sml.bin read_part trustos 0 6M tos.bin reset
Waiting for connection (30s)
libusb_control_transfer ok
CHECK_BAUD bootrom
BSL_REP_VER: "SPRD3\0"
CMD_CONNECT bootrom
SEND FDL1
EXEC FDL1
CHECK_BAUD FAIL
CHECK_BAUD FDL1
BSL_REP_VER: "Spreadtrum Boot Block version 1.1\0"
CMD_CONNECT FDL1
KEEP_CHARGE FDL1
SEND uboot-mod.bin
FDL2: incompatible partition
EXEC FDL2
dump_partition: sml+0x0, target: 0x100000, read: 0x100000
dump_partition: trustos+0x0, target: 0x600000, read: 0x600000

E:>chsize sml.bin

E:>chsize tos.bin

E:>spd_dump_3f88 fdl fdl1-no-verify.bin 0x5500 fdl tos.bin 0x9403fe00 fdl uboot-mod.bin 0x9efffe00 fdl sml.bin 0x93fffe00 exec
Waiting for connection (30s)
libusb_control_transfer ok
CHECK_BAUD bootrom
BSL_REP_VER: "SPRD3\0"
CMD_CONNECT bootrom
SEND FDL1
EXEC FDL1
CHECK_BAUD FAIL
CHECK_BAUD FDL1
BSL_REP_VER: "Spreadtrum Boot Block version 1.1\0"
CMD_CONNECT FDL1
KEEP_CHARGE FDL1
SEND tos.bin
SEND uboot-mod.bin
SEND sml.bin
usb_recv failed : LIBUSB_ERROR_PIPE

E:>spd_dump_3f88 fdl fdl1-no-verify.bin 0x5500 fdl tos.bin 0x9403fe00 fdl uboot-mod.bin 0x9efffe00 fdl sml.bin 0x93fffe00 exec
Waiting for connection (30s)
libusb_control_transfer ok
CHECK_BAUD bootrom
BSL_REP_VER: "SPRD3\0"
CMD_CONNECT bootrom
SEND FDL1
EXEC FDL1
CHECK_BAUD FAIL
CHECK_BAUD FDL1
BSL_REP_VER: "Spreadtrum Boot Block version 1.1\0"
CMD_CONNECT FDL1
KEEP_CHARGE FDL1
SEND tos.bin
SEND uboot-mod.bin
SEND sml.bin
usb_recv failed : LIBUSB_ERROR_PIPE

E:>spd_dump_3f88 fdl fdl1-no-verify-dl.bin 0x5500 fdl uboot-mod.bin 0x9efffe00 exec erase_part uboot_log write_part userdata userdata.bin reset
Waiting for connection (30s)
libusb_control_transfer ok
CHECK_BAUD bootrom
BSL_REP_VER: "SPRD3\0"
CMD_CONNECT bootrom
SEND FDL1
EXEC FDL1
CHECK_BAUD FAIL
CHECK_BAUD FDL1
BSL_REP_VER: "Spreadtrum Boot Block version 1.1\0"
CMD_CONNECT FDL1
KEEP_CHARGE FDL1
SEND uboot-mod.bin
FDL2: incompatible partition
EXEC FDL2
Answer "yes" to confirm the "erase partition" command: yes
file size : 0x2413c
Answer "yes" to confirm the "write partition" command: yes
unexpected response (0xffffffff)
load_partition: userdata, target: 0x2413c, written: 0x24000
usb_send failed : LIBUSB_ERROR_TIMEOUT`

[TomKing062]

https://pan.baidu.com/s/1zyiAn_EFo5RENl5Ad5xQKw?pwd=qt12 has a root pac for 2020, but there are feedback saying network get worse after root