Unbrick or fix NAND on the MK808

[fratello]

Yes, you have right ...sorry, I looked to the wrong IC !

[mrigi]

My oppinion : the NAND chip (H5TQ2G83BFR , 96 Ball Fine Pitch Ball Grid Array)

As I understand H5TQ2G83BFR is not a NAND chip. It is a DDR3 one. No need to fix RAM. The NAND must be SandDisk one.

[fratello]

My oppinion : the NAND chip (H5TQ2G83BFR , 96 Ball Fine Pitch Ball Grid Array) don't allow access to any pins (for "hardware" reset ...) so the only way to unbrick it's software method ! Maybe the way to "access" this NAND it's different ...and the tool software need to be "updated" .

[mrigi]

I think it's verry important to see what model of NAND do you have ... Maybe it's a different model than "usual" and someone can figure out how to proper erase !

I took away the heatsink and here is the chip info:
Line 1: SanDisk
Line 2: P224071991
Line 3: SDTNQGAMA-008G
Line 4: WAC5140066
Line 5: TAIWAN

[fratello]

I think it's verry important to see what model of NAND do you have ... Maybe it's a different model than "usual" and someone can figure out how to proper erase !

[MaVe_64]

:'(

If I have time I'll try the linux tool this weekend (maybe you can too).
Also, I have another PC disassembled in parts that I might assemble JUST to try this.

That would be great. If only it was possible to just ram the correct bytes into the NAND....

[l0ur3nz0]

:'(

If I have time I'll try the linux tool this weekend (maybe you can too).
Also, I have another PC disassembled in parts that I might assemble JUST to try this.

[MaVe_64]

Re: NEW - Unbrick or fix NAND on the MK808

Thanks. Tried again and again, I guess 1000 times. Not as lucky as the other guy.

[l0ur3nz0]

see if the tips here help:

http://www.flashmyandroid.com/forum/printthread.php?t=2076&pp=10&page=1

[MaVe_64]

Thanks l0ur3nz0,

I'm using 2 PC's, 1 XP and 1 Windows 7, used multiple cables, mk808 OTG directly to USB port on back of PC. As I said, configuration used to work fine. First time I flashed only the new kernel from Kizs v4, all good, then days later I flashed Finless 1.6 (2 times, all good) and this time same flash fails.
So I did a succesfull full flash (everything ticked exept backup.img) 2 times, this is the 3rd time.

I also tried with the official tool, I get blue box. I get this log, first Restore and then Upgrade:

08:15:53 545 Rockchip Batch Tool v1.5.3.0 start run
08:17:10 944 **********Restore Start Total<1>**********
08:17:10 949 <Layer 2-1-3> Download Boot Start
08:17:13 753 <Layer 2-1-3> Download Boot Success
08:17:13 758 <Layer 2-1-3> Wait For Maskrom Start
08:17:14 269 <Layer 2-1-3> Wait For Maskrom Success
08:17:14 273 <Layer 2-1-3> Test Device Start
08:17:14 278 <Layer 2-1-3> Test Device Success
08:17:14 283 <Layer 2-1-3> Check Chip Start
08:17:14 289 <Layer 2-1-3> Check Chip Success
08:17:14 294 <Layer 2-1-3> Get FlashInfo Start
08:17:14 298 <LAYER 2-1-3> INFO:FlashInfo: 0 0 0 0 80 0 2 0 32 0 0
08:17:14 303 <Layer 2-1-3> Get FlashInfo Success
08:17:14 308 <Layer 2-1-3> Prepare IDB Start
08:17:14 312 <LAYER 2-1-3> ERROR:PrepareIDB-->No Found 1st Flash CS
08:17:14 317 <Layer 2-1-3> Prepare IDB Fail
08:17:14 322 **********Restore Done Success<0> Fail<1> Time<3370>ms**********

08:18:12 872 **********Upgrade Start Total<1>**********
08:18:12 879 <Layer 2-1-3> Download Boot Start
08:18:14 817 <Layer 2-1-3> Download Boot Success
08:18:14 823 <Layer 2-1-3> Wait For Maskrom Start
08:18:15 316 <Layer 2-1-3> Wait For Maskrom Success
08:18:15 322 <Layer 2-1-3> Test Device Start
08:18:15 328 <Layer 2-1-3> Test Device Success
08:18:15 335 <Layer 2-1-3> Check Chip Start
08:18:15 345 <Layer 2-1-3> Check Chip Success
08:18:15 352 <Layer 2-1-3> Get FlashInfo Start
08:18:15 357 <LAYER 2-1-3> INFO:FlashInfo: 0 0 0 0 80 0 2 0 32 0 0
08:18:15 362 <Layer 2-1-3> Get FlashInfo Success
08:18:15 368 <Layer 2-1-3> Prepare IDB Start
08:18:15 375 <LAYER 2-1-3> ERROR:PrepareIDB-->No Found 1st Flash CS
08:18:15 380 <Layer 2-1-3> Prepare IDB Fail
08:18:15 386 **********Upgrade Done Success<0> Fail<1> Time<2511>ms**********

[l0ur3nz0]

I have flashed my mk808 a couple of times allways with success. Now it fails. The tool says "Found RKAndroid MaskRom Rock USB" but when flashing it says "Error: Download IDB failed". If I erase NAND that goes without error. In the log it says:

[...]

"No Found 1th chip", does someone know what that problem is? Tried it on multiple PC's, all the same.

PLEASE HELP!

Your case seems a bit different. I recommend you to try the official flash tool; in mask mode you should get a "Blue box"; try the "RESTORE" option with an official firmware/ROM loaded.

Please give more info regarding your setup (PC/USB PORTS/CABLES/...); if you try the official tool post the log here.
-------------
Yesterday I've tried another notebook. Same daunting results.

It's weird but in the logs that came with the official tool (latest firmware) we can see that they usually get a usb layer of <1-1> (usb: <hub-port>, it seems). I can never get that arrangement! Not even by plugging directly to the back USB ports of a desktop PC.

I'm using branded USB cables (SONY/CANON/LG/...)

[MaVe_64]

Flashing fail

I have flashed my mk808 a couple of times allways with success. Now it fails. The tool says "Found RKAndroid MaskRom Rock USB" but when flashing it says "Error: Download IDB failed". If I erase NAND that goes without error. In the log it says:

INFO:Start to erase NAND
08:15:06 573 INFOownload USBData OK
08:15:07 748 INFOownload USBBoot OK
08:15:10 630 Flash(0) - Erasing: 00000000 ~ 00000049 ...
08:15:10 635 Good block
08:15:10 639 INFO:Erasing IDB OK
08:15:14 547 MaskRom Device Path(\\?\USB#VID_2207&PID_300A#6&114B00B3&0&3#{a5d cbf10-6530-11d2-901f-00c04fb951ed}),threadID=7384
08:15:14 551 INFO:Start to run
08:15:14 577 INFO:Start to download boot
08:15:15 113 INFOownload USBData OK
08:15:16 291 INFOownload USBBoot OK
08:15:16 296 INFOownload boot OK
08:15:18 301 INFO:Start to test device
08:15:18 307 INFO:Test device OK
08:15:18 312 INFO:Start to download IDB
08:15:18 317 Flash Chip Information:
08:15:18 321 NO SIZE(MB) Manufacturer
08:15:18 326 ----------------------------------------------
08:15:18 330 ----------------------------------------------
08:15:18 334 ERROR: No Found 1th chip
08:15:18 339 Errorownload IDB failed
08:15:18 345 ERROR:MaskRomThread failed
08:15:18 349 ERROR:Run failed

"No Found 1th chip", does someone know what that problem is? Tried it on multiple PC's, all the same.

PLEASE HELP!

[l0ur3nz0]

This is getting ridiculous - two more PCs (Notebook+desktop) and nothing!

[mrigi]

Did you configure it correctly by adding RK30 PID to the source code?

I took the version with RK30 already added.
Here is the repository: https://github.com/fldc/arnova-tools.git

[l0ur3nz0]

I am running that linux tool now (rkflashtool). It completes all reads, writes and reboots without throwing errors. But any block it reads is filled with zeros. Even if I write something to that block first. So I assume it doesn't really reads/writes anything. Tool simply doesn't checks device response and sends commands blindly.

Did you configure it correctly by adding RK30 PID to the source code?