joerg_rw: x

2014-08-24T03:26:04Z

← Older revision		Revision as of 03:26, 24 August 2014
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-	this is a typical log on a linux PC, of a N900 plugged into USB in power-off state, clearly showing the three stages of boot: 1) ROM-bootloader (idProduct=0106), 2) NOLO in "update mode" (idProduct=0105), and finally maemo fremantle system in act-dead modus for charging, nevertheless obviously exporting mass "Storage Mode" (idProduct=01c7)	+	this is a typical log on a linux PC, of a N900 plugged into USB in power-off state, clearly showing the three stages of boot: 1) generic immutable Nokia OMAP ROM-bootloader living in CPU ROM (idProduct=0106), 2) NOLO in "update mode" (idProduct=0105), and finally 3) maemo fremantle system in act-dead modus for charging, nevertheless obviously exporting mass "Storage Mode" (idProduct=01c7)

	Note that particularly stage1 can't be broken unless either your device already is powered up when plugging it in to PC, or your PC does block USB access ( = you forgot to blacklist *-phonet kernel modules), or USB is broken (jack came off PCB, or cable defect, or you using a hub maybe). Stage1 USB ROM bootloader is also what does coldflashing to restore a broken NOLO (stage2 not showing up in your syslog, after stage1 did), thus establishing "unbrickability" of N900.		Note that particularly stage1 can't be broken unless either your device already is powered up when plugging it in to PC, or your PC does block USB access ( = you forgot to blacklist *-phonet kernel modules), or USB is broken (jack came off PCB, or cable defect, or you using a hub maybe). Stage1 USB ROM bootloader is also what does coldflashing to restore a broken NOLO (stage2 not showing up in your syslog, after stage1 did), thus establishing "unbrickability" of N900.

joerg_rw: syslog initial

2014-08-24T02:55:46Z

syslog initial

New page

this is a typical log on a linux PC, of a N900 plugged into USB in power-off state, clearly showing the three stages of boot: 1) ROM-bootloader (idProduct=0106), 2) NOLO in "update mode" (idProduct=0105), and finally maemo fremantle system in act-dead modus for charging, nevertheless obviously exporting mass "Storage Mode" (idProduct=01c7)

Note that particularly stage1 can't be broken unless either your device already is powered up when plugging it in to PC, or your PC does block USB access ( = you forgot to blacklist *-phonet kernel modules), or USB is broken (jack came off PCB, or cable defect, or you using a hub maybe). Stage1 USB ROM bootloader is also what does coldflashing to restore a broken NOLO (stage2 not showing up in your syslog, after stage1 did), thus establishing "unbrickability" of N900.

<pre>
2014-08-24T04:26:38.349918+02:00 saturn kernel: [4764602.611622] usb 2-1.8: new high-speed USB device number 21 using ehci-pci
2014-08-24T04:26:38.435930+02:00 saturn kernel: [4764602.697798] usb 2-1.8: unable to get BOS descriptor
2014-08-24T04:26:38.437525+02:00 saturn kernel: [4764602.699537] usb 2-1.8: New USB device found, idVendor=0421, idProduct=0106
2014-08-24T04:26:38.437532+02:00 saturn kernel: [4764602.699539] usb 2-1.8: New USB device strings: Mfr=34, Product=38, SerialNumber=0
2014-08-24T04:26:38.437533+02:00 saturn kernel: [4764602.699541] usb 2-1.8: Product: Nokia USB ROM
2014-08-24T04:26:38.437538+02:00 saturn kernel: [4764602.699542] usb 2-1.8: Manufacturer: Nokia
2014-08-24T04:26:38.445659+02:00 saturn mtp-probe: checking bus 2, device 21: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8"
2014-08-24T04:26:38.452261+02:00 saturn mtp-probe: bus: 2, device: 21 was not an MTP device
2014-08-24T04:26:38.939937+02:00 saturn kernel: [4764603.201806] usb 2-1.8: USB disconnect, device number 21
2014-08-24T04:26:39.629931+02:00 saturn kernel: [4764603.890353] usb 2-1.8: new high-speed USB device number 22 using ehci-pci
2014-08-24T04:26:39.802919+02:00 saturn kernel: [4764604.063582] usb 2-1.8: New USB device found, idVendor=0421, idProduct=0105
2014-08-24T04:26:39.802932+02:00 saturn kernel: [4764604.063586] usb 2-1.8: New USB device strings: Mfr=1, Product=2, SerialNumber=5
2014-08-24T04:26:39.802933+02:00 saturn kernel: [4764604.063587] usb 2-1.8: Product: Nokia N900 (Update mode)
2014-08-24T04:26:39.802933+02:00 saturn kernel: [4764604.063588] usb 2-1.8: Manufacturer: Nokia
2014-08-24T04:26:39.802934+02:00 saturn kernel: [4764604.063589] usb 2-1.8: SerialNumber: 4D554D323534333135
2014-08-24T04:26:39.852602+02:00 saturn mtp-probe: checking bus 2, device 22: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8"
2014-08-24T04:26:39.855255+02:00 saturn mtp-probe: bus: 2, device: 22 was not an MTP device
2014-08-24T04:26:41.500225+02:00 saturn kernel: [4764605.759293] usb 2-1.8: USB disconnect, device number 22
2014-08-24T04:26:48.076930+02:00 saturn kernel: [4764612.329271] usb 2-1.8: new high-speed USB device number 23 using ehci-pci
2014-08-24T04:26:48.163932+02:00 saturn kernel: [4764612.416309] usb 2-1.8: New USB device found, idVendor=0421, idProduct=01c7
2014-08-24T04:26:48.163953+02:00 saturn kernel: [4764612.416314] usb 2-1.8: New USB device strings: Mfr=1, Product=2, SerialNumber=3
2014-08-24T04:26:48.163954+02:00 saturn kernel: [4764612.416317] usb 2-1.8: Product: N900 (Storage Mode)
2014-08-24T04:26:48.163955+02:00 saturn kernel: [4764612.416319] usb 2-1.8: Manufacturer: Nokia
2014-08-24T04:26:48.163955+02:00 saturn kernel: [4764612.416321] usb 2-1.8: SerialNumber: 372041756775
2014-08-24T04:26:48.164919+02:00 saturn kernel: [4764612.417675] usb-storage 2-1.8:1.0: USB Mass Storage device detected
2014-08-24T04:26:48.164925+02:00 saturn kernel: [4764612.417763] scsi7 : usb-storage 2-1.8:1.0
2014-08-24T04:26:48.167863+02:00 saturn mtp-probe: checking bus 2, device 23: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8"
2014-08-24T04:26:48.169450+02:00 saturn mtp-probe: bus: 2, device: 23 was not an MTP device
2014-08-24T04:26:49.167945+02:00 saturn kernel: [4764613.420119] scsi 7:0:0:0: Direct-Access Nokia N900 031 PQ: 0 ANSI: 2
2014-08-24T04:26:49.168918+02:00 saturn kernel: [4764613.420598] sd 7:0:0:0: Attached scsi generic sg3 type 0
2014-08-24T04:26:49.169899+02:00 saturn kernel: [4764613.421292] scsi 7:0:0:1: Direct-Access Nokia N900 031 PQ: 0 ANSI: 2
2014-08-24T04:26:49.169903+02:00 saturn kernel: [4764613.421635] sd 7:0:0:1: Attached scsi generic sg4 type 0
2014-08-24T04:26:49.174902+02:00 saturn kernel: [4764613.426662] sd 7:0:0:1: [sdd] Attached SCSI removable disk
2014-08-24T04:26:49.176908+02:00 saturn kernel: [4764613.429031] sd 7:0:0:0: [sdc] Attached SCSI removable disk
</pre>

User:Joerg rw/PC syslog of USB enum - Revision history

joerg_rw: x

joerg_rw: syslog initial