Help with Mecool k1 Plus

[creited]

Hi, I have a bricked box for few years that I could recover the access using UART:

Tho box is Mecool K1 Plus. According to a label inside the box "KI PLUS S905D 1G 8G DDR3 LR".

There is no VIDEO if plugged to HDMI. I have tried many recoverys using AMLOGIC USB BURNING TOOL, holding reset button (upper and down) but nothing helped for years.

My box is recognized by USB BURNING TOOL without the need of pressing any of the buttons.

If i just plug the box to POWER, UART says:

GXL:BL1:9ac50e:a1974b;FEAT:ADFC318C;POC:3;RCY:0;EMMC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;LOOP:1;EMMC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;LOOP:2;EMMC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;LOOP:3;EMMC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;GXL:BL1:9ac50e:a1974b;FEAT:ADFC318C;POC:3;RCY:0;EMMC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;

I have tried several .img files, but any of them work with USB BURNING TOOL. Now that I'm able to monitor the box with UART, I can see that some of the img files tested produce diferent errors:

ACEMAX KI PLUS TV BOX LATEST ANDROID LOLLIPOP 5.1.1.img produces:
no output on UARC


KI_PLUS_DTV-LMY47V-20161123.203246.V1031P3.img produces:
no output on UARC

KI_PLUS_NEW_S905D.img produces:
0.0;
TE: 34706799

BL2 Built : 13:38:48, Mar 8 2017.
gxl g8e12692 - 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
BL2 USB
DQS-corr enabled
DDR scramble enabled
DDR4 chl: Rank0+1 @ 792MHz
GXL:BL1:9ac50e:a1974b;FEAT:ADFC318C;POC:3;RCY:0;EM MC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;


KIII_PRO_AVL6862-NHG47L-20181221.165922.V0213.img produces:
0.0;
TE: 73134890

BL2 Built : 17:47:29, Jul 11 2017.
gxl gcb74862-dirty - jiaxing.ye@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
BL2 USB
DQS-corr enabled
DDR scramble enabled
STICKY_REG0: 0x00000000
STICKY_REG1: 0x00000000
STICKY_REG9: 0x00000000
DDR3 chl: Rank0+1 @ 792MHz - FAIL
STICKY_REG0: 0x00000000
STICKY_REG1: 0x00000000
STICKY_REG9: 0x00000000
DDR4 chl: Rank0+1 @ 792MHz - FAIL
DDR init failed...
Reset...


M8S_PLUS_DVB_RS6060-NHG47L-20190226.104739.V0213.img produces:
0.0;
TE: 68779161

BL2 Built : 19:04:28, May 29 2018. \ngxl g034b32c-dirty - xianjun.liu@droid09-sz

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
BL2 USB
DQS-corr enabled
DDR scramble enabled
DDR3 chl: Rank0 16bit @ 768MHz - FAIL
DDR4 chl: Rank0 16bit @ 792MHz - FAIL
DDR init failed...
Reset...
GXL:BL1:9ac50e:a1974b;FEAT:ADFC318C;POC:3;RCY:0;EM MC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;0.0;
TE: 3187660

KII_PRO_AVL6862-NHG47L-20190817.142759.V0213.img produces:
0.0;
TE: 173157814

BL2 Built : 11:04:41, Jan 26 2018.
gxl g034b32c - xingyu.chen@droid12-sz

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
BL2 USB
DQS-corr enabled
DDR scramble enabled
LPDDR3 chl: Rank0+1 @ 720MHz
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x37800018....
DX3GSR2: 0x37000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x38000018....
DX3GSR2: 0x37000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x38000018....
DX3GSR2: 0x38000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x37800018....
DX3GSR2: 0x38000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x39000018....
DX3GSR2: 0x38000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x38000018....
DX3GSR2: 0x37000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x39000018....
DX3GSR2: 0x38000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x38000018....
DX3GSR2: 0x37000018....
Training Err PGSR0: 0x848017bf.Retry...
DX0GSR2: 0x37800018....
DX1GSR2: 0x38800018....
DX2GSR2: 0x39000018....
DX3GSR2: 0x37000018....
DDR init fail, reset...
GXL:BL1:9ac50e:a1974b;FEAT:ADFC318C;POC:3;RCY:0;EM MC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;

I'm not expert on this, but the .img which seems to be "almost accepted" is the one that states: LPDDR3 chl: Rank0+1 @ 720MHz, but unfortunately, my box is not KII Pro.

The images I have for S905D K1 PLUS according to the label on my box, does net seem to use LPDDR3, so I'm concluding I just don't have the correct .img. Am I correct?

Can anyone help in my case? Provide me with a good .img for my box, or suggest any other action?

Thanks