Repair EROM K850i

[McBane]

Ok.
Now I found the K770i of my mom, with the same battery (fully charged) as the K850. So I tested it and it reacts the same way as with the old battery. It didn't start...
So we can be sure it isn't the battery that produces the error.

[philzfog]

and u have tryed it on the sony ericsson update service

[McBane]

Yes I tried SEUS, but it said something like it can't find anything for my phone and at the same time it said I have already the newest software.

PS: I used the buttons 2&5. Because they are the only ones that work with the PC.

[philzfog]

have a read though this then try to reflash it to see if it will take a flsh and see if u get any err when u do it
A2-DB3150 Flashing - Top Sony Forums

[McBane]

Yes I tried this already. But it didn't work. Because all these tools want you to hold the c-button. But with c-button my phone/pc doesn't react. And with 2&5 it says the following things:

ChipID:C802,EMP protocol:0401
BOOTROM MODE DETECTED
can't get NET header
can't load ACCESS CPU preloader
Can't load ID loader !
Elapsed:79 secs.

[philzfog]

can't get NET header
hardwere fault has the phone been droped or water damge
and were u plug ur cable in to ur phone are the gold pins clean

[McBane]

I don't know. I got it from eBay. But nobody said something of water damage or something else. The person only described that the phone sometimes works and somtimes can't get startet. So I thought it could be only a software damage and bought it (and hoped to repair it). The seller himself thought it could be a software damage, too.

[philzfog]

r a ebay phone what couor are the markers on the battry and in side off the phone were the battry goes

[McBane]

I don't know exactly what you mean? Do you mean the colour of the contacts? They are both (on battery and inside the phone) gold.

[philzfog]

next to the gold con there should be a white sticker that goes red when water damged