Same thing happens to me with healthy phones.
Dump flash file from phone Reading log:
Start Scanning...
->
Results:
GND:2,RXD:4,TXD:6
[G:2 R:4 T:6] Apply to Box
Connecting...
Press Power button now !
Phone Connected!
CPU Info Coolsand
Flash Type NOR
Flash ID 00C80040(00160000)
Flash Model GD25Q32
Flash Size 0x400000(4,0M)
Start Reading...
Read Done!
writting log:
Results:
GND:5,RXD:6,TXD:1
[G:5 R:6 T:1] Apply to Box
Connecting...
Press Power button now !
Phone Connected!
Initialize boot...
Boot Error. ID: 1011
Connecting...
Press Power button now !
Phone Connected!
CPU Info Coolsand
Flash Type NOR
Flash ID 00C80040(00160000)
Flash Model GD25Q32
Flash Size 0x400000(4,0M)
Check firmware,Wait...
User Abort
Connecting...
Press Power button now !
Phone Connected!
Initialize boot...
Boot Error. ID: 1011
Connecting...
Press Power button now !
Phone Connected!
Initialize boot...
Boot Error. ID: 1011
Connecting...
Press Power button now !
Phone Connected!
Initialize boot...
Boot Error. ID: 1011
Connecting...
Press Power button now !
Phone Connected!
Initialize boot...
Boot Error. ID: 1011
Hope you can add Write feature for this flash model.
Thanks.-