04-29-2016, 09:32 AM | #16 |
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There will be output on the serial port, up to the message:
unable to start DRAM At which point the SoC code powers the chip down. The thread on replacing the eMMC has the solutions to all of these questions. Searching for that thread is left as a DIY exercise, after all, my Kindle isn't the one that is broke. |
04-30-2016, 01:06 PM | #17 | |
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Quote:
Now I have tried to hold button for 30 sec and orange LED next to USB port starts to flash after about 10 seconds and nothing happens. I have checked dmesg after I reset device and it look a little bit different that after first time I connect it to mu PC: Code:
[11431.849746] usb 2-1: USB disconnect, device number 5 [11432.255469] usb 2-1: new high-speed USB device number 6 using xhci_hcd [11432.384085] usb 2-1: New USB device found, idVendor=15a2, idProduct=0063 [11432.384088] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [11432.384089] usb 2-1: Product: SE Blank MEGREZ [11432.384090] usb 2-1: Manufacturer: Freescale SemiConductor Inc [11432.384977] hid-generic 0003:15A2:0063.0007: hiddev0,hidraw2: USB HID v1.10 Device [Freescale SemiConductor Inc SE Blank MEGREZ] on usb-0000:00:14.0-1/input0 |
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04-30-2016, 02:15 PM | #18 | |
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Quote:
https://community.freescale.com/thread/385070 I do not have a newer kindle so I cannot support it (no way to explore and test available debricking options). Donations of working (or non-working) PW (or newer) kindles are welcome, so I can support them. |
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04-30-2016, 02:31 PM | #19 |
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I have found recent version of imx_loader-master and it supports 15A2:0063 device, but trying to download fastboot.img is not working as I would like to:
Code:
config file <./imx_usb.conf> vid=0x066f pid=0x3780 file_name=mx23_usb_work.conf vid=0x15a2 pid=0x004f file_name=mx28_usb_work.conf vid=0x15a2 pid=0x0052 file_name=mx50_usb_work.conf vid=0x15a2 pid=0x0054 file_name=mx6_usb_work.conf vid=0x15a2 pid=0x0061 file_name=mx6_usb_work.conf vid=0x15a2 pid=0x0063 file_name=mx6_usb_work.conf vid=0x15a2 pid=0x0041 file_name=mx51_usb_work.conf vid=0x15a2 pid=0x004e file_name=mx53_usb_work.conf vid=0x15a2 pid=0x006a file_name=vybrid_usb_work.conf vid=0x066f pid=0x37ff file_name=linux_gadget.conf config file <./mx6_usb_work.conf> parse ./mx6_usb_work.conf 15a2:0063(mx6_qsb) bConfigurationValue =1 Interface 0 claimed HAB security state: development mode (0x56787856) == work item filename ./fastboot.bin load_size 0 bytes load_addr 0x00000000 dcd 1 clear_dcd 0 plug 1 jump_mode 2 jump_addr 0x00000000 == end work item No dcd table, barker=402000d1 loading binary file(./fastboot.bin) to f8006000, skip=0, fsize=800 type=aa out err=-7, last_trans=0 cnt=0x800 max=0x400 transferSize=0x0 retry=0 out err=-7, last_trans=0 cnt=0x800 max=0x200 transferSize=0x0 retry=1 out err=-7, last_trans=0 cnt=0x800 max=0x100 transferSize=0x0 retry=2 out err=-7, last_trans=0 cnt=0x800 max=0x80 transferSize=0x0 retry=3 out err=-7, last_trans=0 cnt=0x800 max=0x40 transferSize=0x0 retry=4 out err=-7, last_trans=0 cnt=0x800 max=0x20 transferSize=0x0 retry=5 out err=-7, last_trans=0 cnt=0x800 max=0x10 transferSize=0x0 retry=6 out err=-7, last_trans=0 cnt=0x800 max=0x8 transferSize=0x0 retry=7 out err=-7, last_trans=0 cnt=0x800 max=0x10 transferSize=0x0 retry=8 out err=-7, last_trans=0 cnt=0x800 max=0x8 transferSize=0x0 retry=9 out err=-7, last_trans=0 cnt=0x800 max=0x10 transferSize=0x0 retry=10 Giving up HAB security state: development mode (0x00000000) |
04-30-2016, 03:37 PM | #20 | |
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Quote:
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04-30-2016, 04:54 PM | #21 |
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Tried without - no output on serial port
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05-01-2016, 08:53 AM | #22 |
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05-01-2016, 03:48 PM | #23 |
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I'm using this converter: http://www.tiaowiki.com/w/TIAO_USB_M...r's_Manual
TTL level selector is in correct position. I use pins 1,2 and 12 on TTL connector. I've tried to swap Rx and Tx wires just to test it. Nothing happened. Absolutely same setup was used on the same computer with the same operating system before executing 'eraseall' command. After that I get absolutely nothing on serial port. I still use same serial port settings - 115200 8N1. |
05-01-2016, 04:09 PM | #24 | |
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Quote:
Also, the device at your link shows pads for (and describes usage of) RX and TX LEDs. As I mentioned in my "level shifter" thread (link provided above), the kindle TxD cannot sink enough current to light an LED, and cannot pull the logic level down to a 1.8v TTL zero with an LED in that part of the circuit. I had to remove the LED and pull that line up with an appropriate resistor. If your adapter contains such LEDs (as described at your link), you will almost certainly have the same problem. Also, as I discovered on some kindle models, the GND pin on the serial connection is inadequate, and I was able to get by without part of the level shifter circuit if I used a better GND point in the kindle (such as an RF or USB shield). EDIT: This page confirms that the device at your link has a "3.3v to 5v TTL serial link", which is NOT compatible with 1.8v kindle serial TTL, unless you convert the TTL levels: http://www.diygadget.com/tiao-usb-mu...2c-serial.html Last edited by geekmaster; 05-01-2016 at 04:29 PM. |
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05-01-2016, 04:47 PM | #25 |
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How then it could work before executing 'eraseall'? That was biggest confusion about my converter. It was working without any problem, so I didn't think that it might be the reason.
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05-01-2016, 05:37 PM | #26 | |
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Quote:
On a K5 (Touch) or earlier, erasing your entire flash would be relatively trivial to fix, because you press a "magic key" during hard reset to enter USB downloader mode. Though the PW uses the same processor (i.MX508) as the K5, it has no keys (and therefore no "magic key"). However, the "magic key" is likely wired to one of the inputs on the SoC that determine boot mode, and finding that pin on the PW SoC (especially somewhere on the PCB that you can connect to) may allow you to enable USB downloader mode even on a PW (or later). AFAIK nobody has done this yet, but it may be possible. Meanwhile, erasing all your flash on a newer kindle is like playing Russian Roulette with all chambers loaded. Last edited by geekmaster; 05-01-2016 at 05:41 PM. |
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05-01-2016, 08:44 PM | #27 |
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