T113S使用一段时间开机失败

[y97788]

[01.741]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[01.753]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
partno erro : can't find partition bootloader
[01.769]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[01.780]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
partno erro : can't find partition boot-resource
[01.797]Get bootloader and boot-resource partition number fail!
[01.802]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[01.814]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
[02.119]LCD open finish
[02.121]Loading Environment from SUNXI_FLASH... [02.126]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[02.137]mbr magic error: ▒▒▒▒H wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
Can't find env partition
*** Warning - no device, using default environment

Failed (-19)
cann't get the boot_base from the env
[02.161]Item0 (Map) magic is bad
[02.164]mbr magic error: wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[02.175]mbr magic error: wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
partno erro : can't find partition private
[02.191]mbr magic error: ▒▒▒▒▒▒▒▒ wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[02.202]mbr magic error: ▒▒▒▒▒▒▒▒ wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
[02.215]update bootcmd
[02.217]mbr magic error: ▒▒▒▒▒▒▒▒ wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[02.229]mbr magic error: ▒▒▒▒▒▒▒▒ wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
[02.241]mbr magic error: ▒▒▒▒▒▒▒▒ wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid GPT ***
[02.253]mbr magic error: ▒▒▒▒▒▒▒▒ wanted softw411
*** ERROR: Can't read MBR header ***
part_get_info_efi: *** ERROR: Invalid Backup GPT ***
[02.265]mbr magic error: ▒▒▒▒▒▒▒▒ wanted softw411
[02.270]change working_fdt 0x44885e70 to 0x44865e70
[02.288]update dts

Error: "distro_bootcmd" not defined

这是分区损坏了吗？这种是什么原因引起的，如何修复和预防