Sony.yt - International Sony Forum

Fixed BROD You will need:
1. A2Uploader
2. USB cable
3. Back-up of YOUR unpatched phone_app.cxc or better yet a back-up of YOUR entire "boot" folder
WHAT TO DO:
1. Make a folder named "boot".
2. Inside it put the back-up of your phone_app.cxc or all the files the files that are normally in it. (phone_app, pcore, phone_acc and the other one)
3. Now zip the "boot" folder.(It must be in .zip not .rar !!!)
4. Start A2Uploader, and near the box where it says "MISC" click "...".
5. Now select the archive that you just made.
6. Click FLASH, remove and then re-insert the battery of your phone.
7. Hold "c" or "2+5" button (ON THE PHONE) and then plug in the USB cable into your phone.
8. Wait until it's done. (It may take sev?ral minutes)
9. After it's done, disconnect the phone, remove the battery for 30 seconds, insert it back and power the phone on.
YOU SHOULD NOW HAVE YOUR K850i FIXED

Thanks for this tutorial, there is also easier method - just reflash your phone Also it's worth to add that it will work only if phone has software issue. If the BROD is caused by damaged processor - that will not help.

yes, but in this way we do not lose the
file modification and important data
that have not been backed up. Reflash
will eliminate all

That is correct