GT1 ultimate G912 boot error

sarkanyz

I have a GT1 ultimate with SN G912GSIG50016 32G. Tried to flash new firmware due to dark screen bug but bricked the device. I checked the serial port for boot messages with the following result:

GXM:BL1:dc8b51:76f1a5;FEAT:ADFC318C:0;POC:3;RCY:0;EMMC:0;READ:0;0.0;CHK:0;
TE: 122981


BL2 Built : 19:58:22, Aug 31 2016.
gxl g54c8aee - xiaobo.gu@droid05


set vdd cpu_a to 1120 mv
set vdd cpu_b to 1050 mv
set vddee to 1000 mv
Board ID = 6
CPU clk: 1200MHz
DQS-corr enabled
DDR scramble enabled
DDR4 chl: Rank0+1 @ 912MHz
Error PGSR0: 0x840047ff.Retry...
DX0GSR0: 0x009f27a0....
DX1GSR0: 0x009e27a0....
DX2GSR0: 0x009f27a0....
DX3GSR0: 0x009e27a0....
DX0GSR2: 0x27800018....
DX1GSR2: 0x27800018....
DX2GSR2: 0x27800018....
DX3GSR2: 0x27800018....
DX0GSR3: 0x00000000....
DX1GSR3: 0x00000000....
DX2GSR3: 0x00000000....
DX3GSR3: 0x00000000....
Error PGSR0: 0x840047ff.Retry...



It does some trials then resets and starts again.


It is obvious that the problem is related to the DDR memory. Is this a HW error or can it be fixed from software? How? I need help.

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