firmware update issue

[zad]

hi guys its banging head off the wall time for me!!!

i was given a 5400 with some issues mainly psu.
i have repaired this part and discovered the 5400 has no firmware on it as im getting the error code that corresponds to it so........

i have tried to upload new firmware however i have been getting the a-ut error code (firmware tx rx problem) so i have dropped the connection speed right down to the slowest possible and it starts off uploading the software but then crashes out!

any suggestions guys?
i have changed the crystal next to the com port and also went over the joints to check for drys but still the problem persists..

please help my head is going to go through the wall soon lol

[zad]

ok problem solved and what a bi*ch!!!

the surface mount rs232 controller had went down

this was on a oak 2 board

the part was as follows

ic u340
part number adm239mjr

if anyone else ever has this issue and your ok working with surface mount components you may have to go down this road, however afer all the 5400's i have repaired this is the first time i have came across this issue so it may be an idea to elimated all other possible causes before going down the route i had to.

well anyways all sorted now if voith or any other mod wants to add this perticular issue to the stickies help section and the component in question!

[voith driver]

Hi zad,
have added it to the help section, as one post
thanks
voith