K800I - NO USB connection - GSM-Forum

comp_dad · 06-09-2007, 05:17

I have been given a W800i however it does not matter what we try, it is unable to be seen via the usb port. Other W800i's and K750I tried and are all OK

This unit must have a USB problem..

I can not upgrade as when I go via the process the unit comes up into Phone or Music mode and not upgrade as it does not see the USB connection.

How can I Trouble Shoot this further ?

Can I some how flash or run a diag tool from the mem card ?

NOTE: When being used as a phone this unit works but DRAINS battries quickly as well ? A seperate or related problem ?

Please help.

Mark

baraka42 · 06-09-2007, 06:02

check clean pcb with ipa or same. and dry it well with hotair.

check usb connection also

wbr

lamborghini · 06-09-2007, 08:31

check system connector, IC USB (below RAM (IC Nand)).

comp_dad · 06-09-2007, 09:26

Quote:

Originally Posted by baraka42

check clean pcb with ipa or same. and dry it well with hotair.

check usb connection also

wbr

Done that, cleaned and scrubbed all connectors. Had the thing appart more than I can to think.

Quote:

Originally Posted by lamborghini

check system connector, IC USB (below RAM (IC Nand)).

Have always checked that the 3 push in connectors are firm as well as the edge connector that allows the USB / Interface cable to be connected.

Pulled it all down again, connected and Battery is charging... BUT still not recognised as being connected :-( Ready to use as a BRICK.

Sorry it is a W800i not a K800i (PS. Is there any major diferences?)

Aishur · 06-09-2007, 21:11

Quote:

Originally Posted by comp_dad

...........
Sorry it is a W800i not a K800i (PS. Is there any major diferences?)

Yes, different plateforms db2010 and db2020

With w800i, for servicing, you will need a serial service cable (FTDI, rs232, ufs..)

Best regards,
Aishur

Aishur · 06-09-2007, 21:25

Quote:

Originally Posted by comp_dad

Have always checked that the 3 push in connectors are firm as well as the edge connector that allows the USB / Interface cable to be connected.

Pulled it all down again, connected and Battery is charging... BUT still not recognised as being connected :-( Ready to use as a BRICK.

Sorry it is a W800i not a K800i (PS. Is there any major diferences?)

Hi

Sorry for a second post

You need also to check or to weld the cable and/or phone connectors

Best regards,
Aishur

06-09-2007, 05:17	#1 (permalink)
comp_dad Junior Member Join Date: Feb 2007 Posts: 4 Member: 453687 Status: Offline Thanks Meter: 2	K800I - NO USB connection I have been given a W800i however it does not matter what we try, it is unable to be seen via the usb port. Other W800i's and K750I tried and are all OK This unit must have a USB problem.. I can not upgrade as when I go via the process the unit comes up into Phone or Music mode and not upgrade as it does not see the USB connection. How can I Trouble Shoot this further ? Can I some how flash or run a diag tool from the mem card ? NOTE: When being used as a phone this unit works but DRAINS battries quickly as well ? A seperate or related problem ? Please help. Mark Last edited by comp_dad; 06-09-2007 at 10:01.

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06-09-2007, 06:02	#2 (permalink)
baraka42 No Life Poster Join Date: Aug 2002 Location: india Age: 63 Posts: 1,476 Member: 14578 Status: Offline Thanks Meter: 831	check clean pcb with ipa or same. and dry it well with hotair. check usb connection also wbr

06-09-2007, 08:31	#3 (permalink)
lamborghini Freak Poster Join Date: Nov 2006 Posts: 155 Member: 388978 Status: Offline Thanks Meter: 88	check system connector, IC USB (below RAM (IC Nand)).