Hi Guys,
I got a new MXQ OTT S805 android box the other day.
I didn't like the stock rom so I decided to change the rom.
I was sure that it was the right one, based on the description in the file I downloaded.
Well long story short, it was not, and now the device is bricked real good.
It does not boot, can't use SD bootcard to restore boot, USB Burning tool doesn't work (PC does
not see the device). I tried everything. (toothpick method)
When unit is powered up, red LED stays ON.
I have been reading a lot the last few days and learning everything I can about this box.
I figured out there is a debug port that spits out a log of the bootup sequence to a terminal
program.
Here is what I got from the log:
Here are some pictures of the board:
I have a USBtoTTL converter connected to the debug port.
I have TXD, RXD, and GND connected.
On another forum I read that
the nand can be reprogrammed from the debug port which would repair the device.
I just don't know what software to use.
I hope someone can shed some light.
I really want to fix this box.
Judging from all the other posts like mine, there are others who have the same problem with this box.
I would really appreciate some ideas/insight/advice.
I will post my results if I get it to work so others can also benefit.
After all, isn't that what these forums are for?
Cheers!
I got a new MXQ OTT S805 android box the other day.
I didn't like the stock rom so I decided to change the rom.
I was sure that it was the right one, based on the description in the file I downloaded.
Well long story short, it was not, and now the device is bricked real good.
It does not boot, can't use SD bootcard to restore boot, USB Burning tool doesn't work (PC does
not see the device). I tried everything. (toothpick method)
When unit is powered up, red LED stays ON.
I have been reading a lot the last few days and learning everything I can about this box.
I figured out there is a debug port that spits out a log of the bootup sequence to a terminal
program.
Here is what I got from the log:
Code:
Terminal log file Date: 9/3/2015 - 1:42:26 PM ----------------------------------------------- QA5:A;SVN:B72;POC:3FF;STS:0;BOOT:0;INIT:0;READ:0;CHECK:0;PASS:0; no sdio debug board detected TE : 24850 BT : 13:49:38 Jan 14 2015 PMU:NONE ##### VDDEE voltage = 0x041a CPU clock is 792MHz DDR mode: 32 bit mode DDR size: 1GB DDR check: Pass! DDR clock: 636MHz with 2T mode DDR pll bypass: Disabled DDR init use : 13240 us HHH ucl decompress...pass 0x12345678 Boot from internal device 1st NAND TE : 210423 System Started U-boot(m8b_m201_v1@953b5b96) (Jan 14 2015 - 13:49:29) clr h-ram DRAM: 1 GiB relocation Offset is: 2fecc000 show partition table: part: 0, name : logo, size : 2000000 part: 1, name : recovery, size : 2000000 part: 2, name : misc, size : 2000000 part: 3, name : boot, size : 2000000 part: 4, name : system, size : 40000000 part: 5, name : cache, size : 20000000 part: 6, name : data, size : end aml_card_type=0x100 MMC: [mmc_register] add mmc dev_num=0, port=1, if_type=6 [mmc_register] add mmc dev_num=1, port=2, if_type=6 SDIO Port B: 0, SDIO Port C: 1 power init out reg=c110804c,value=dfffffff IR init done! register usb cfg[0][1] = 3ff737cc register usb cfg[2][0] = 3ff76350 NAND: NAND BOOT: boot_device_flag 1 Nand PHY driver Version: 1.01.001.0003 (c) 2013 Amlogic Inc. amlnf_phy_init : amlnf init flag 0 NAND device id: ad de 14 a7 42 4a ad de detect NAND device: E revision 1Ynm NAND 8GiB H27UCG8T2E AML_NAND_NEW_OOB : new oob bus_cycle=5, bus_timing=7,system=3.9ns,flash->T_REA =16,flash->T_RHOH=15 hynix nand get default reg value at blk:8, page:2048 NAND CKECK : arg nbbt: arg_valid= 1, valid_blk_addr = 5, valid_page_addr = 0 NAND CKECK : arg ncnf: arg_valid= 1, valid_blk_addr = 7, valid_page_addr = 0 NAND CKECK : arg nkey: arg_valid= 1, valid_blk_addr = 4, valid_page_addr = 0 i=0,register --- nand_key NAND CKECK : arg nenv: arg_valid= 1, valid_blk_addr = 9, valid_page_addr = 0 nfboot : offset: 0x000000000000 -0x000001000000 : partitons 0 : single_chip single_plane nfcache : offset: 0x00000d000000 -0x000026000000 : partitons 1 : single_chip multi_plane nfcode : offset: 0x000033000000 -0x000052000000 : partitons 5 : single_chip multi_plane nfdata : offset: 0x000085000000 -0x00017b000000 : partitons 1 : single_chip multi_plane bad block count = 0 bad block count = 0 bad block count = 0 bad block count = 0 amlnf_logic_init: START aml_nftl_start:117,size_in_blk=76,tmp_block=65,part->free_block_num=11 aml_nftl_start:117,size_in_blk=164,tmp_block=145,part->free_block_num=19 amlnf_logic_init: COMPLETE get_boot_device_flag: init_ret 0 get_boot_device_flag NAND BOOT: NAND BOOT,nand_env_relocate_spec : env_relocate_spec 49 uboot env amlnf_env_read : #### check dts: FDT_ERR_BADMAGIC, load default vpu parameters vpu clk_level = 3 set vpu clk: 182150000Hz, readback: 182150000Hz(0x701) Net: Meson_Ethernet init suspend firmware done. (ret:0) cvbs trimming.1.v5: 0xa0, 0x0 Hit Enter key to stop autoboot -- : 5 4 3 2 1 0 exit abortboot: 0 Amlogic Ethernet Init Success: reset mac OK!(0) ETH PHY hardware reset OK find net phy id=0x2430c54, phyad=0 set_mac_mode(0) final_addr[rx-tx]: 0x3ffee000-0x3ffee600 Ethernet reset OK MAC address is 00:00:00:00:00:00 (changed to all 0's) phy auto link failed half duplex 10m BOOTP broadcast 1 phy auto link failed phy auto link failed BOOTP broadcast 2 phy auto link failed ----------------------------------------------- Date: 9/3/2015 - 1:42:53 PM End log file
I have a USBtoTTL converter connected to the debug port.
I have TXD, RXD, and GND connected.
On another forum I read that
the nand can be reprogrammed from the debug port which would repair the device.
I just don't know what software to use.
I hope someone can shed some light.
I really want to fix this box.
Judging from all the other posts like mine, there are others who have the same problem with this box.
I would really appreciate some ideas/insight/advice.
I will post my results if I get it to work so others can also benefit.
After all, isn't that what these forums are for?
Cheers!
I already have usb male to male 
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