Problem while flashing
Suitable USB device not found, waiting



and on n900 it just shows USB icon in the corner, thats it, and its perfectly charging.

please helppppppppppppppppppppppppppppppppppp

I believe help was offered yet you did not respond directly to a post id'ing your problem: installing usb-hostmode went wrong leaving your device compromised. If you disagree then reply as much. Or ask for a clarification.
Edit: (deleted bit about reflashing) doh, I now see your reflash problem. Sorry. So the retracing your steps advice holds.

so ill remove all that hostmode etc?

im confused i dnt undrstnd what to do plz tell me what and how to do?

First off: I am not entirely sure that usbmode did the damage. It could have. Whatever, either the usb drivers (installed via the kernel) are damaged or there is a connector fault on the port. Given the n900 history with the usb port your troubles could be the start of the port detaching. Ever gentle wiggling of the connector can get cracks to close and reconnect. You can more easily monitor kernel messages by using in a root terminal Wiggling is risky for obvious reasons but it can show up the problem.

You may need to reflash and need to researchj how to do that given that the usb is giving trouble. What OS on the desktop/laptop are you using? If it is Win 7 then there are known issues you can search for.

But first, try to reinstall usbmode (long shot) as root:Another thing to try is to get copies of the usb drivers for the kernel version you are running. I am offhand unsure of what ALL those drivers are given the install of usbmode. Can anyone help here? PS: looking at "cat /proc/kmsg" whilst switching between modes in usbmode will show at least some of the drivers.

PPS: thinking about Pali's response to your usbmode post, where he thought your plugged-in device was faulty suggests that there is nothing wrong with what the kernel sees as happening in the usb subsystem. That I fear points to the usb port rather than drivers.

ill checkout soon, thanks

USB port is fine, i had opened it. Its very tight at its plzce. And ill reinstall kernel power packages?, Ive tried on xp, 7-32bit, no luck

here is cat /proc/kmsg

<7>[43024.578796] usb 1-0:1.0: uevent
<7>[43024.578857] hub 1-0:1.0: usb_probe_interface
<7>[43024.578887] hub 1-0:1.0: usb_probe_interface - got id
<6>[43024.578887] hub 1-0:1.0: USB hub found
<6>[43024.578948] hub 1-0:1.0: 1 port detected
<7>[43024.578948] hub 1-0:1.0: standalone hub
<7>[43024.578979] hub 1-0:1.0: individual port power switching
<7>[43024.578979] hub 1-0:1.0: no over-current protection
<7>[43024.578979] hub 1-0:1.0: power on to power good time: 10ms
<7>[43024.579010] hub 1-0:1.0: local power source is good
<7>[43024.579010] hub 1-0:1.0: enabling power on all ports
<7>[43024.579254] drivers/usb/core/inode.c: creating file '001'
<6>[43024.579467] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
<6>[43024.579467] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
<6>[43024.579467] usb usb1: Product: MUSB HDRC host driver
<6>[43024.579498] usb usb1: Manufacturer: Linux 2.6.28.10-power52 musb-hcd
<6>[43024.579498] usb usb1: SerialNumber: musb_hdrc
<7>[43024.677520] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000
<7>[43029.068145] twl4030_usb twl4030_usb: HW_CONDITIONS 0xd0/208; link 2
<3>[43034.654418] Forced hostmode error: no device attached
<7>[43034.655456] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
<7>[43034.655487] hub 1-0:1.0: port 1, status 0301, change 0001, 1.5 Mb/s
<7>[43034.810363] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x301
<6>[43034.935363] usb 1-1: new low speed USB device using musb_hdrc and address 2
<7>[43038.598022] twl4030_usb twl4030_usb: HW_CONDITIONS 0x50/80; link 1
<7>[43039.935363] usb 1-1: khubd timed out on ep0in len=0/64
<7>[43041.130645] twl4030_usb twl4030_usb: HW_CONDITIONS 0xd0/208; link 2
<7>[43044.935333] usb 1-1: khubd timed out on ep0in len=0/64
<3>[43046.753814] Forced hostmode error: no device attached
<7>[43049.935333] usb 1-1: khubd timed out on ep0in len=0/64
<3>[43049.997833] Forced hostmode error: a full/low-speed device attached but high-speed mode selected
<3>[43049.997924] hub 1-0:1.0: unable to enumerate USB device on port 1
<7>[43049.997955] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
<7>[43049.997955] hub 1-0:1.0: port 1, status 0101, change 0003, 12 Mb/s
<7>[43050.154113] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x101
<3>[43050.216674] Forced hostmode error: a full/low-speed device attached but high-speed mode selected
<6>[43050.279144] usb 1-1: new full speed USB device using musb_hdrc and address 3
<7>[43050.890472] twl4030_usb twl4030_usb: HW_CONDITIONS 0x50/80; link 1
<7>[43053.443206] twl4030_usb twl4030_usb: HW_CONDITIONS 0xd0/208; link 2
<7>[43055.280029] usb 1-1: khubd timed out on ep0in len=0/64
<3>[43055.404998] usb 1-1: device descriptor read/64, error -19
<3>[43055.639526] usb 1-1: device descriptor read/64, error -19
<6>[43055.874023] usb 1-1: new full speed USB device using musb_hdrc and address 4
<3>[43055.999145] usb 1-1: device descriptor read/64, error -19
<3>[43056.233612] usb 1-1: device descriptor read/64, error -19
<6>[43056.468078] usb 1-1: new full speed USB device using musb_hdrc and address 5
<3>[43056.890319] usb 1-1: device not accepting address 5, error -19
<6>[43057.015258] usb 1-1: new full speed USB device using musb_hdrc and address 6
<3>[43057.437316] usb 1-1: device not accepting address 6, error -19
<3>[43057.437377] hub 1-0:1.0: unable to enumerate USB device on port 1
<7>[43057.437408] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
<7>[43057.437408] hub 1-0:1.0: port 1 enable change, status 00000101
<3>[43058.969696] Forced hostmode error: no device attached
<7>[43058.970764] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
<7>[43058.970825] hub 1-0:1.0: port 1, status 0101, change 0001, 12 Mb/s
<7>[43059.125671] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x101
<6>[43059.250762] usb 1-1: new full speed USB device using musb_hdrc and address 7
<7>[43064.253295] usb 1-1: khubd timed out on ep0in len=0/64
<7>[43069.255767] usb 1-1: khubd timed out on ep0in len=0/64
<7>[43074.258270] usb 1-1: khubd timed out on ep0in len=0/64
<3>[43074.383331] usb 1-1: device descriptor read/64, error -110
<7>[43079.495239] usb 1-1: khubd timed out on ep0in len=0/64
<7>[43084.497772] usb 1-1: khubd timed out on ep0in len=0/64
<7>[43089.500213] usb 1-1: khubd timed out on ep0in len=0/64
<3>[43089.625305] usb 1-1: device descriptor read/64, error -110
<6>[43089.859741] usb 1-1: new full speed USB device using musb_hdrc and address 8
<7>[43094.862274] usb 1-1: khubd timed out on ep0in len=0/64
<7>[43099.864776] usb 1-1: khubd timed out on ep0in len=0/64
<7>[43104.867279] usb 1-1: khubd timed out on ep0in len=0/64
<3>[43104.992370] usb 1-1: device descriptor read/64, error -110
<7>[43110.104309] usb 1-1: khubd timed out on ep0in len=0/64
<6>[43114.478790] musb_hdrc musb_hdrc: remove, state 1
<7>[43114.478820] musb_hdrc musb_hdrc: roothub graceful disconnect
<6>[43114.478851] usb usb1: USB disconnect, address 1
<7>[43115.106842] usb 1-1: khubd timed out on ep0in len=0/64
<3>[43115.106903] hub 1-0:1.0: cannot reset port 1 (err = -19)
<3>[43115.106933] hub 1-0:1.0: cannot disable port 1 (err = -19)
<3>[43115.106964] hub 1-0:1.0: cannot reset port 1 (err = -19)
<3>[43115.106964] hub 1-0:1.0: cannot disable port 1 (err = -19)
<3>[43115.106994] hub 1-0:1.0: cannot reset port 1 (err = -19)
<3>[43115.106994] hub 1-0:1.0: cannot disable port 1 (err = -19)
<3>[43115.107025] hub 1-0:1.0: unable to enumerate USB device on port 1
<3>[43115.107025] hub 1-0:1.0: cannot disable port 1 (err = -19)
<7>[43115.107055] hub 1-0:1.0: state 0 ports 1 chg 0000 evt 0002
<7>[43115.107086] usb usb1: unregistering device
<7>[43115.107086] usb usb1: usb_disable_device nuking all URBs
<7>[43115.107116] musb_hdrc musb_hdrc: shutdown urb ccbe9c80 ep1in-intr
<7>[43115.107116] usb usb1: unregistering interface 1-0:1.0
<7>[43115.111114] usb 1-0:1.0: uevent
<7>[43115.122222] usb usb1: uevent
<6>[43115.135955] musb_hdrc musb_hdrc: USB bus 1 deregistered
<7>[43116.377990] twl4030_usb twl4030_usb: HW_CONDITIONS 0x50/80; link 1
<6>[43119.378814] g_file_storage gadget: File-backed Storage Gadget, version: 7 August 2007
<6>[43119.378814] g_file_storage gadget: Number of LUNs=2 Number of buffers=16
<6>[43119.378845] musb_hdrc musb_hdrc: MUSB HDRC host driver
<7>[43119.382934] drivers/usb/core/inode.c: creating file 'devices'
<7>[43119.382965] drivers/usb/core/inode.c: creating file '001'
<6>[43119.446716] musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
<7>[43119.446838] usb usb1: default language 0x0409
<7>[43119.447143] usb usb1: uevent
<7>[43119.450958] usb usb1: usb_probe_device
<6>[43119.450988] usb usb1: configuration #1 chosen from 1 choice
<7>[43119.451049] usb usb1: adding 1-0:1.0 (config #1, interface 0)
<7>[43119.451141] usb 1-0:1.0: uevent
<7>[43119.454071] hub 1-0:1.0: usb_probe_interface
<7>[43119.454071] hub 1-0:1.0: usb_probe_interface - got id
<6>[43119.454101] hub 1-0:1.0: USB hub found
<6>[43119.454193] hub 1-0:1.0: 1 port detected
<7>[43119.454193] hub 1-0:1.0: standalone hub
<7>[43119.454193] hub 1-0:1.0: individual port power switching
<7>[43119.454193] hub 1-0:1.0: no over-current protection
<7>[43119.454223] hub 1-0:1.0: power on to power good time: 10ms
<7>[43119.454223] hub 1-0:1.0: local power source is good
<7>[43119.454254] hub 1-0:1.0: enabling power on all ports
<7>[43119.460998] drivers/usb/core/inode.c: creating file '001'
<6>[43119.520446] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
<6>[43119.520477] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
<6>[43119.520477] usb usb1: Product: MUSB HDRC host driver
<6>[43119.520507] usb usb1: Manufacturer: Linux 2.6.28.10-power52 musb-hcd
<6>[43119.520507] usb usb1: SerialNumber: musb_hdrc
<7>[43119.554382] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000
<7>[43121.555328] hub 1-0:1.0: hub_suspend
<7>[43121.555358] usb usb1: bus auto-suspend
<6>[43123.243988] bq2415x-charger 2-006b: driver unregistered
<7>[43127.886322] twl4030_usb twl4030_usb: HW_CONDITIONS 0xd0/208; link 2
<4>[43127.886352] rx51_update_charger_mode (mode = 2)

I have never enquired whether kernel-power is reinstallable (anyone?). You cannot simply uninstall it but reinstall.... needs a search. If possible, then yes reinstall along with usbmode.

Will look at /proc/kmsg and usb on my n900 when time permits.

Thank You Very Much