[Android Stick & Console Computers General] loocas21:
Hi!

I bought Amlogic S905X3 4/64GB 1Gbit Ethernet Android Box (VONTAR X3) and it was DOA. No input from HDMI, only two LEDs are glowing and that’s it.

I tried Amlogic Burning Tool, without success. My PC doesn’t see the device despite using USB male-male cable capable of data transfer. The drivers are installed and everything should be ok.

I tried shorting some ‘pins’ as shown here (source: 4pda):

https://cs5-2.4pda.to/19610657/IMG_20200502_174831.jpg?ac3ab8d6ab3d87cf727a9e13ad8d43a8

But that didn’t work either. Maybe these aren’t the ‘pins’ I am looking for?

Also tried the reset button behind the AV/jack port but nothing happened.

Anyway, I’ve connected the device using UART and here’s my PuTTY log (it doesn't matter if I push the reset button or short the pins or put a bootable microSD inside - it's always the same):

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2020.10.03 19:16:17 =~=~=~=~=~=~=~=~=~=~=~=
SM1:BL:511f6b:81ca2f;FEAT:A0F83180:20282000;POC:F; RCY:0;EMMC:0;READ:0;0.0;CHK:0;
bl2_stage_init 0x01
bl2_stage_init 0x81
hw id: 0x0001 - pwm id 0x00
bl2_stage_init 0xc0
bl2_stage_init 0x02

L0:00000000
L1:00000703
L2:00008067
L3:15000020
S1:00000000
B2:20282000
B1:a0f83180

TE: 101694

BL2 Built : 20:29:41, Jun 18 2019. g12a ga659aac - luan.yuan@droid15-sz

Board ID = 1
Set cpu clk to 24M
Set clk81 to 24M
Use GP1_pll as DSU clk.
DSU clk: 1200 Mhz
CPU clk: 1200 MHz
Set clk81 to 166.6M
eMMC boot @ 0
sw8 s
DDR driver_vesion: LPDDR4_PHY_V_0_1_15 build time: Jun 18 2019 20:29:37
board id: 1
Load FIP HDR from eMMC, src: 0x00010200, des: 0xfffd0000, size: 0x00004000, part: 0
fw parse done
Load ddrfw from eMMC, src: 0x00060200, des: 0xfffd0000, size: 0x0000c000, part: 0
Load ddrfw from eMMC, src: 0x00038200, des: 0xfffd0000, size: 0x00004000, part: 0
PIEI prepare done
fastboot data load
00000000
emmc switch 1 ok
ddr saved addr:00016000
Load ddr parameter from eMMC, src: 0x02c00000, des: 0xfffd0000, size: 0x00001000, part: 0
00000000
emmc switch 0 ok
fastboot data verify
verify result: 0
enable_fast_boot
dmc_margin_rx==12 dmc_margin_tx==11 steps
DDR3 probe
ddr clk to 672MHz
Load ddrfw from eMMC, src: 0x0002c200, des: 0xfffd0000, size: 0x0000c000, part: 0

dmc_version 0001
Check phy result
INFO : End of initialization
INFO : Training has run successfully!
aml_ddr_fw_vesion: LPDDR4_PHY_V_0_1_15 build time: Jun 18 2019 20:29:43
DDR cs0 size: 3928MB
DDR cs1 size: 0MB
DMC_DDR_CTRL: 0000002dDDR size: 3928MB
DATA-W[0x00000000]:0xaaaaaaaa,R:0xaaafaaaa
fail D16 18
DATA-W[0x00000000]:0x55555555,R:0x55515555
fail D18
DATA-W[0x00000000]:0x00000001,R:0x00010001
fail D16
DATA-W[0x00000000]:0x00000002,R:0x00010002
fail D16
DATA-W[0x00000000]:0x00000004,R:0x00010004
fail D16
DATA-W[0x00000000]:0x00000008,R:0x00010008
fail D16
DATA-W[0x00000000]:0x00000010,R:0x00010010
fail D16
DATA-W[0x00000000]:0x00000020,R:0x00010020
fail D16
DATA-W[0x00000000]:0x00000040,R:0x00010040
fail D16
DATA-W[0x00000000]:0x00000080,R:0x00010080
fail D16
DATA-W[0x00000000]:0x00000100,R:0x00010100
fail D16
DATA-W[0x00000000]:0x00000200,R:0x00010200
fail D16
DATA-W[0x00000000]:0x00000400,R:0x00010400
fail D16
DATA-W[0x00000000]:0x00000800,R:0x00010800
fail D16
DATA-W[0x00000000]:0x00001000,R:0x00011000
fail D16
DATA-W[0x00000000]:0x00002000,R:0x00012000
fail D16
DATA-W[0x00000000]:0x00004000,R:0x00014000
fail D16
DATA-W[0x00000000]:0x00008000,R:0x00018000
fail D16
DATA-W[0x00000000]:0x00040000,R:0x00010000
fail D16 18
DATA-W[0x00000000]:0x00080000,R:0x00090000
fail D16
DATA-W[0x00000000]:0x00100000,R:0x00110000
fail D16
DATA-W[0x00000000]:0x00200000,R:0x00210000
fail D16
DATA-W[0x00000000]:0x00400000,R:0x00410000
fail D16
DATA-W[0x00000000]:0x00800000,R:0x00810000
fail D16
DATA-W[0x00000000]:0x01000000,R:0x01010000
fail D16
DATA-W[0x00000000]:0x02000000,R:0x02010000
fail D16
DATA-W[0x00000000]:0x04000000,R:0x04010000
fail D16
DATA-W[0x00000000]:0x08000000,R:0x08010000
fail D16
DATA-W[0x00000000]:0x10000000,R:0x10010000
fail D16
DATA-W[0x00000000]:0x20000000,R:0x20010000
fail D16
DATA-W[0x00000000]:0x40000000,R:0x40010000
fail D16
DATA-W[0x00000000]:0x80000000,R:0x80010000
fail D16
cs0 DataBus test failed
ADDR-W[0x00000004]:0xaaaaaaaa,R:0xaaaeaaaa
cs0 AddrBus test failed
fail address pin cs 0 add 0x 00000004
Cfg max: 5, cur: 1. Board id: 255. Force loop cfg
DDR3 probe
ddr clk to 672MHz
Load ddrfw from eMMC, src: 0x0002c200, des: 0xfffd0000, size: 0x0000c000, part: 0

dmc_version 0001
Check phy result
INFO : End of initialization
INFO : ERROR : Training has failed!
1D training failed
Cfg max: 5, cur: 2. Board id: 255. Force loop cfg
DDR3 probe
ddr clk to 672MHz
Load ddrfw from eMMC, src: 0x0002c200, des: 0xfffd0000, size: 0x0000c000, part: 0

dmc_version 0001
Check phy result
INFO : End of initialization
INFO : End of read enable training
INFO : End of fine write leveling
INFO : ERROR : Training has failed!
1D training failed
Cfg max: 5, cur: 3. Board id: 255. Force loop cfg
DDR3 probe
ddr clk to 672MHz
Load ddrfw from eMMC, src: 0x0002c200, des: 0xfffd0000, size: 0x0000c000, part: 0

dmc_version 0001
Check phy result
INFO : End of initialization
INFO : End of read enable training
INFO : End of fine write leveling
INFO : ERROR : Training has failed!
1D training failed
Cfg max: 5, cur: 4. Board id: 255. Force loop cfg
LPDDR4 probe
ddr clk to 1008MHz
Load ddrfw from eMMC, src: 0x0003c200, des: 0xfffd0000, size: 0x0000c000, part: 0

dmc_version 0001
Check phy result
INFO : ERROR : Training has failed!
1D training failed
Cfg max: 5, cur: 5. Board id: 255. Force loop cfg
DDR3 probe
ddr clk to 672MHz
Load ddrfw from eMMC, src: 0x0002c200, des: 0xfffd0000, size: 0x0000c000, part: 0

dmc_version 0001
Check phy result
INFO : End of initialization
INFO : End of read enable training
INFO : End of fine write leveling
INFO : ERROR : Training has failed!
1D training failed
All ddr config failed...
Reset...
boot times 0

And it loops from there to eternity so I decided to post only one loop.

Here are some PCB photos:

https://imgur.com/a/JH8OAEn

Is it dead like disco or can it be reanimated somehow?

I already got a partial refund so if nothing can be done then it goes to a trash can.

Any help would be greatly appreciated.

P.S. Sorry for the external (non)links but I didn't want to post 10 random replies in 10 random threads to unlock the ability to post proper external links. I'm not a filthy spammer :)