soft brick with ayufan

[DimHummingbird]

UPDATE:

• I can get into Maskrom mode. Actually I didn’t do anything, I gather it falls back to maskrom because it can’t boot from anything else. The only reason I know it's in Maskrom is because rkdeveloptool says so.
  
• Just to be sure, I disabled emmr with the hard switch and removed the sd card. Still no visible sign of life on the device, but rkdeveloptool sees it and says it's in Maskrom mode.
  
• Any rkdeveloptool command other than `ld` fails after about 20 seconds, with "Creating Comm Object failed!".
  

Like this:

Code:

~
❯ rkdeveloptool ld                                                                        [1]
DevNo=1 Vid=0x2207,Pid=0x330c,LocationID=309    Maskrom

~
❯ rkdeveloptool db Downloads/rk3399_loader_spinor_v1.15.114.bin                             
Creating Comm Object failed!

~ took 23s

• The initial USB connection works OK according to `journalctl -f`:
  

Code:

Jul 15 14:31:09 banquo kernel: usb 3-9: new high-speed USB device number 8 using xhci_hcd
Jul 15 14:31:09 banquo kernel: usb 3-9: New USB device found, idVendor=2207, idProduct=330c, bcdDevice= 1.00
Jul 15 14:31:09 banquo kernel: usb 3-9: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Jul 15 14:31:09 banquo mtp-probe[2944]: checking bus 3, device 8: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-9"
Jul 15 14:31:09 banquo mtp-probe[2944]: bus: 3, device: 8 was not an MTP device
Jul 15 14:31:09 banquo mtp-probe[2972]: checking bus 3, device 8: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-9"
Jul 15 14:31:09 banquo mtp-probe[2972]: bus: 3, device: 8 was not an MTP device

But after about 20 seconds of any other rkdeveloptool command, the device fails to setup.

Code:

15 14:31:36 banquo kernel: usb 3-9: reset high-speed USB device number 8 using xhci_hcd
Jul 15 14:31:41 banquo kernel: usb 3-9: device descriptor read/64, error -110
Jul 15 14:31:52 banquo kernel: usb 3-9: device descriptor read/64, error -71
Jul 15 14:31:52 banquo kernel: usb 3-9: reset high-speed USB device number 8 using xhci_hcd
Jul 15 14:31:52 banquo kernel: usb 3-9: device descriptor read/64, error -71
Jul 15 14:31:52 banquo kernel: usb 3-9: device descriptor read/64, error -71
Jul 15 14:31:52 banquo kernel: usb 3-9: reset high-speed USB device number 8 using xhci_hcd
Jul 15 14:31:52 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:53 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:53 banquo kernel: usb 3-9: device not accepting address 8, error -71
Jul 15 14:31:53 banquo kernel: usb 3-9: reset high-speed USB device number 8 using xhci_hcd
Jul 15 14:31:53 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:53 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:53 banquo kernel: usb 3-9: device not accepting address 8, error -71
Jul 15 14:31:53 banquo kernel: usb 3-9: USB disconnect, device number 8
Jul 15 14:31:54 banquo kernel: usb 3-9: new high-speed USB device number 9 using xhci_hcd
Jul 15 14:31:54 banquo kernel: usb 3-9: device descriptor read/64, error -71
Jul 15 14:31:54 banquo kernel: usb 3-9: device descriptor read/64, error -71
Jul 15 14:31:54 banquo kernel: usb 3-9: new high-speed USB device number 10 using xhci_hcd
Jul 15 14:31:54 banquo kernel: usb 3-9: device descriptor read/64, error -71
Jul 15 14:31:54 banquo kernel: usb 3-9: device descriptor read/64, error -71
Jul 15 14:31:55 banquo kernel: usb usb3-port9: attempt power cycle
Jul 15 14:31:55 banquo kernel: usb 3-9: new high-speed USB device number 11 using xhci_hcd
Jul 15 14:31:55 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:55 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:55 banquo kernel: usb 3-9: device not accepting address 11, error -71
Jul 15 14:31:56 banquo kernel: usb 3-9: new high-speed USB device number 12 using xhci_hcd
Jul 15 14:31:56 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:56 banquo kernel: usb 3-9: Device not responding to setup address.
Jul 15 14:31:56 banquo kernel: usb 3-9: device not accepting address 12, error -71
Jul 15 14:31:56 banquo kernel: usb usb3-port9: unable to enumerate USB device

I’ve tried:

• validated udev rule is in place for the device.
  
• connecting to the PBP’s USB-A port, but there’s nothing there.
  
• running with sudo
  
• rebooting the host machine
  
• connecting USB directly to my laptop, and through a powered dock (dell TB16)
  

According to the kernel docs, error -110 is -ETIMEDOUT: "Synchronous USB message functions use this code to indicate timeout expired before the transfer completed, and no other error was reported by HC.". Error -71 is -EPROTO: "1. bitstuff error, 2. no response packet received within the prescribed bus turn-around time, 3. unknown USB error"


There's a note on -EPROTO: "errors like [-EPROTO] normally indicate hardware problems such as bad devices (including firmware) or cables.Error codes like -EPROTO, -EILSEQ and -EOVERFLOW normally indicate hardware problems such as bad devices (including firmware) or cables."

So timeout expired before data transfer completed, and then the device goes away completely.