06-11-2023, 07:12 PM | #1 |
Enthusiast
Posts: 40
Karma: 6042
Join Date: Nov 2011
Device: SONY PRS505
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Kindle Oasis (10th) boot loop?
I got a "Certified Refurbished" Oasis 10th/2019 that crashed into a boot-loop.
Does this model have an accessible serial port (I have ttl serial hardware), that I can mess with fastboot and restore a factory image? Any options to actually fix this - the USB device seems to show *very briefly* sometimes. |
06-11-2023, 08:52 PM | #2 |
Grand Sorcerer
Posts: 5,431
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Join Date: Apr 2011
Device: pb360
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No serial port has been found yet and there have been no reports of being able to nodestructively open the case.
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06-12-2023, 01:31 PM | #3 |
Enthusiast
Posts: 40
Karma: 6042
Join Date: Nov 2011
Device: SONY PRS505
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What in the early boot chain exposes the 'usbms' device?
Is this uboot ? This is a KOA3. It fails to completely boot (reboots during tree screen). Once the battery drains, and it is at the "Low battery" display -- so no Linux kernel running for the gadget driver? Code:
usb 1-2: new high-speed USB device number 42 using xhci_hcd usb 1-2: New USB device found, idVendor=1949, idProduct=0004, bcdDevice= 4.01 usb 1-2: New USB device strings: Mfr=0, Product=4, SerialNumber=5 usb 1-2: Product: Internal Storage usb 1-2: SerialNumber: G000WLXXXXXXXXXX usb-storage 1-2:1.0: USB Mass Storage device detected usb-storage 1-2:1.0: Quirks match for vid 1949 pid 0004: 80000000 scsi host2: usb-storage 1-2:1.0 scsi 2:0:0:0: Direct-Access Kindle Internal Storage 0401 PQ: 0 ANSI: 2 sd 2:0:0:0: Attached scsi generic sg0 type 0 sd 2:0:0:0: Power-on or device reset occurred sd 2:0:0:0: [sda] Attached SCSI removable disk 1. "1949 : DEAD", HID when it is at low charge 2. absolutely NOTHING - no USBMS gadget at all. However, released u-boot binaries don't have the "Internal Storage" string - so where is that coming from??? Last edited by erk; 06-12-2023 at 06:52 PM. Reason: Clarified why this seems strange |
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