Bricked M8 device

[crytoy]

Hi there,
I have an M8 S802 tv box that I have tried to update using the SD Card method, now the device is bricked with No blue light and I need help.
I have installed Usb Burning Tool v2.0.5 along with using (PROBOX2-EX) .img file which I had successfully flashed to the device before in other situations.

This time in Usb Burning Tool the device is connected and recognized, I then start flashing the Firmware, at 3% (Download UBOOT_COMP) the M8 Blue Light is switched on, but the problem is that the process fails at 4% ([0x30201004]UBOOT/Disk initialize/Send command/Error result)
I tried multiple times with different erasing options, but the result is Failure.
The problem is not from the (PROBOX2-EX) .img firmware because I used it successfully on the same device before.
I need some help
Waiting for your reply

[crytoy]

[20:25:40 987][HUB2-3][Inf]--CheckFileRunState succeed
[20:25:40 987][HUB2-3][Inf]-- low_power
[20:25:40 987][HUB2-3][Inf]--Send command success
[20:25:40 987][HUB2-3][Inf]--Read command status success
[20:25:40 987][HUB2-3][Inf]-------------ERASE FLASH-----------
[20:25:40 987][HUB2-3][Inf]--disk_initial 1
[20:25:40 987][HUB2-3][Inf]--Send command success
[20:25:41 049][HUB2-3][Err]--failed:[20:25:41 049][HUB2-3][Err]--Check command return failed
[20:25:41 112][HUB2-3][Err]--[0x30201004]UBOOT/Disk initialize/Send command/Error result
[20:25:41 112][HUB2-3][Inf]--Close device handle 0x00000504

[JustMe]

1. what os?
2. usb 2.0 or 3.0?
3. what version usb burnttool?
4. what firmware?
5. what wifi chipset?

[crytoy]

1) Android 4.4.2 (Kitkat)
2) Usb 2.0
3) Usb Burning Tool v2.0.5.15
4) PROBOX2-EX-20150801 (5th firmware release)--------------------- http://probox2.com/category/probox2-ex-firmware
5) Dont know

The problem is not from the firmware that I am using (PROBOX2-EX), I have used it on the same device and it was successful and fully functional.
I think this problem is caused because one time I tried to flash the device using the USB Burning Tool, and the device disconnected in the middle of the process, so it's bricked now.
Can I unbrick it?

[tani666]

Your internal nand memory may have demaged during the flash of firmware with usb burning tool.The solution of your is to replace nand chip

[scooter2014]

Use boot from sd card and use a 16 gig card little slower but it shouls still work.

[crytoy]

I already used the SD Card method, all have failed.
Thank you for your reply

[neomode]

Try it with the Option Erase all.
This should Work.
If this failed you have to reset the Nand Chip.

Neomode

Gesendet von meinem Redmi Note 3 mit Tapatalk

[tani666]

Your board is M9&M8 v0.92.You have a second revision of M8 box.Download this two roms
https://drive.google.com/open?id=0By...WU0R0U5RG85Q3M
http://www.mediafire.com/view/0e0bnubldpbo75y/M8_TV_BOX_Amlogic_S802_169451-20141112.rar
Use the sd card method.One of this two roms shut work 100 % on your board.

[tani666]

The nand short pin are in attached photo in case that sd card method don't work.You must short the pins 29 and 30 on your NAND (SK Hynix H27UCG8T2ETR BC) to make the procedure possible.

[crytoy]

I will test and reply back after a couple of days.

[NIPSZX]

You can't use probox .IMG firmware. You must use the factory image.

Sent from my Nexus 7 using Tapatalk

[tani666]

NIPSZX Yes the rom PROBOX2-EX used by crytoy is different than stock rom that's whay i posted the rom M8. I founded the M8 rom in other forum (4pda) and shut work 100 % for the board M9&M8 v0.92 .

[crytoy]

When using the power plug and SD Card method along with shortening the pins 29 and 30, there is no Blue light, the device does not boot, nor flash.
When using the usb burning tool method, the device is connected, reaches 3% downloading Uboot_comp, then the Blue light is switched on, then suddenly disconnect ( suddenly cant see for a second in the Device Manager) then reconnect, later on fails:

[19:05:31 052][HUB2-3][Inf]--Device is removed
[19:05:43 182][HUB2-3][Inf]--Detect Device connect timeout
[19:05:43 182][HUB2-3][Inf]--Close device handle 0x00000188
[19:05:43 244][HUB2-3][Err]--Device path is null or device connect status is error
[19:05:43 291][HUB2-3][Err]--[0x10302001]Romcode/Switch status/Check connect/Enum device error

[tani666]

Try to put a pin or nail or matchstick inside A/V hole & click & hold,power on, release when RECOVERY MODE loads.If recovery will be displayed to your monitor than download this

http://www.freak-tab.de/finless/em8_finless_rom18.zip

put this to your sd caard and boot to recovery and flash this rom