No USB connection - phone not seen!
#15
@plainenough - I have been using the phone without the back extensively for cooling while testing.

Replaced back and:
1) held vol^ + power until RED led, eMMC UBPorts - udevadm monitor = no change.
2) held vol^ + power until GREEN led, eMMC UBPorts screen shows 'Awaiting command' - udevadm monitor responded (extract below, see https://bpa.st/MGTA):

ID_VENDOR=Pine64
ID_VENDOR_ENC=Pine64
ID_VENDOR_ID=1209
ID_MODEL=PinePhone
ID_MODEL_ENC=PinePhone
ID_MODEL_ID=4201
ID_REVISION=0506
ID_SERIAL=Pine64_PinePhone_Jumpdrive
ID_SERIAL_SHORT=Jumpdrive
ID_BUS=usb
ID_USB_INTERFACES=:0202ff:0a0000:080650:
ID_VENDOR_FROM_DATABASE=Generic
MAJOR=189
MINOR=3

Pc file system now shows various mounted partitions:

1.0 MB - boot.scr.
2.6 GB - android, bin, boot, dev, etc, home (etc).
67  MB - lost+gounf, dtb, initrd.img, vmlinux.
67  MB - lost+found, modules, config-5.6.0-pine64, dtb, initrd.img, System.map-5.6.0-pine64, vmlinuz.
8.4 MB - lost-found.
cache  - lost+found, recovery, system-image-upgrader.log.
userdata - android-data, system-data, user-data, .last_update, SWAP.img.

So it appears the usb/ethernet is probably electrically functional?

Normally booting the phone from eMMC/SD either inhibits usb starting or stops it. UBPorts direct flash mode provides apparently normal usb access leaving the phone in a state 'Awating command'. Does this imply that reflashing eMMC would solve the issue?


Messages In This Thread
No USB connection - phone not seen! - by --- - 07-28-2020, 08:51 PM
RE: No USB connection - phone not seen! - by --- - 08-11-2020, 08:40 PM
RE: No USB connection - phone not seen! - by --- - 08-12-2020, 07:34 AM
RE: No USB connection - phone not seen! - by RTP - 08-12-2020, 01:07 PM
RE: No USB connection - phone not seen! - by --- - 09-01-2020, 12:08 PM
RE: No USB connection - phone not seen! - by --- - 08-28-2020, 06:21 AM
RE: No USB connection - phone not seen! - by RTP - 08-29-2020, 11:56 AM
RE: No USB connection - phone not seen! - by --- - 09-03-2020, 09:46 AM
RE: No USB connection - phone not seen! - by --- - 09-03-2020, 06:35 PM
RE: No USB connection - phone not seen! - by --- - 09-05-2020, 08:05 AM
RE: No USB connection - phone not seen! - by --- - 09-07-2020, 07:21 AM
RE: No USB connection - phone not seen! - by --- - 09-17-2020, 06:28 AM
RE: No USB connection - phone not seen! - by --- - 09-21-2020, 06:14 AM
RE: No USB connection - phone not seen! - by --- - 12-14-2020, 08:24 PM

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