Unbrick or fix NAND on the MK808

[dirtytuga]

Dear Friend Bob,
You have here, in Lisboa, Portugal, one more friend satisfied and happy.
My MK808 is yet naked but alive again.
The more dificult was to find the space betwen the 8 an 9 pins.
Ok its done
Thank you very much.

Things gone wrong again.
sudenly stoped booting.
When I try to use your tool to Erase NAND IDB I get always "ERROR download boot failled".
Why?
I noticed that there is a ? in the RK30 device driver in device manager.

[fratello]

I've tried changing from my desktop(running XP) to my laptop (running win7), no change.
tried to change the usb cable also.

...
Sorry, I have no more ideeas ...

Kind regards and Merry Christmas !

[Finless]

It is rare MK808 breaks off a usb port as they are mini-USB not micro.

I still think your having some kind of USB issue with your PC! We have seen this before.
If you know how to go into your BIOS make sure USB is not set to "high speed" and is in compatibility mode. If that does not work then, you may have to try another PC.

Bob

[TheDuder5123]

Just an ideea ...
Can you take a look at miniUSB connectors (soldered to PCB) ?[ATTACH=CONFIG]1303[/ATTACH]

Seems good, doesn't it?

[fratello]

Just an ideea ...
Can you take a look at miniUSB connectors (soldered to PCB) ?

[TheDuder5123]

USBBoot failed

If your sure your PC can supply enough power then no you dont need the power supply.

Bob

I tried with power supply this time with no luck.

INFO:Start to erase NAND
INFOownload USBData OK
ERROR: DeviceIoCOntrol failed.
ERROR: Download USBBoot failed.

Why USBData ok but USBBoot dont?

[Finless]

The power supply should plugged in?
I didn't get that from your instructions.
I understand that you should plug only the OTG port and the unit get the power from that.

Should I plug the power supply?

If your sure your PC can supply enough power then no you dont need the power supply.

Bob

[TheDuder5123]

Your having USB communication issues. Bad cable, make sure your using a USB 2.0 port not a 3.0, do not go through a USB hub, etc etc... Also some of the power supplies provided are junk and can also cause issues like this.

Bob

The power supply should plugged in?
I didn't get that from your instructions.
I understand that you should plug only the OTG port and the unit get the power from that.

Should I plug the power supply?

[Finless]

Your having USB communication issues. Bad cable, make sure your using a USB 2.0 port not a 3.0, do not go through a USB hub, etc etc... Also some of the power supplies provided are junk and can also cause issues like this.

Bob

[TheDuder5123]

When in MASK ROM mode you are in unbrick recovery. Just erase NAND and flash the ROM now.

Bob

It keeps Failing when i'm trying to erase the Nand.

INFO:Start to erase NAND
ERROR: DeviceIoControl failed. bRet=1,err=0,dwReturnByte=542,nSendBytes=12288,dwT otalSended=1241932

[Finless]

When in MASK ROM mode you are in unbrick recovery. Just erase NAND and flash the ROM now.

Bob

[TheDuder5123]

Mask Rock Usb

Try change : the USB port, the cable, the power adapter, the PC ...

I've tried changing from my desktop(running XP) to my laptop (running win7), no change.
tried to change the usb cable also.

I've noticed a new detail:
On the Flash tool bottom, the "No Found RKAndroid rock usb" change to "Found RKAndroid MaskRom Rock Usb" when i plugged my mk808 using the 8-9pin short on the NAND chip.

What does "MaskRom" mean?
How do i change it to "Loader Rock" as i belive requierd following the instruction on the readme file.

dude.

[fratello]

Yes , THAT REALLY MATTERS !!!
Did you try SOMETHING from my advices ?!
In log it's USB issue !!!

[TheDuder5123]

Try change : the USB port, the cable, the power adapter, the PC ...

Is this really matters?
Is this a voodoo thing?

Is anyone know to say from the log what seems to be the problem?

[fratello]

Try change : the USB port, the cable, the power adapter, the PC ...