Jan 7, 2008
This tutorial (k790, k800, w580, & more) is not mine, it was made by pugsport over at sense.
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DISCLAIMER: If this brick"s your phone DO NOT blame me. I take NO responsibility for actions taken here, neither does anyone else.
Tutorial credits go to pugsport. Originally Posted by pugsport.
Ok, I have figured it out, took me a full day of messing around but done it and at absolutely no cost guaranteed! This is of course just patch unlock so if you re-apply firmware, you will have to follow these steps again but hey, it's a small price to pay! You will need the following:
SIMLockPatchGen 2 (free from http://simox.5gbfree.com)
First of all you need to create the unlock patch. Load up the software and then select the MAIN firmware you wish to make the unlock patch from (I presume that this can be any but I chose the K800_R8BA024_MAIN_GENERIC_WI_RED52.mbn), it should auto detect which phone it is for and the firmware version. Click on Make Patch and it should create a VKP file (this is located in VKP directory inside the directory SIMLockPatchGen 2 is installed to). Ok, now time to move on.
Load up the software and change the Phone Type to K800. In the big box on the right (Files area), click on Add and select the MAIN file and then do the same again and select the FS file (make sure this corresponds to the MAIN file you created the patch from in the previous step - NOT A DIFFERENT FIRMWARE FILE). Now, in the MISC files area, browse to the VKP file that was created before. Now click on the FLASH button. Connect the phone as per usual by taking out the SIM card, then the battery. Re-insert the battery and whilst holding down C button on the phone, connect it to the USB cable (other side of it should already be plugged into your computer). Flashing will begin. After a while, it will ask you to remove the cable, remove the battery, re-insert battery, click READY and then re-connect it to the USB cable whilst holding down the C button. Again, after another while, it will ask you about the script file, just click on the NO button to apply. After a couple of minutes, it will be completed and you can disconnect the phone from the USB cable.
Load up the software and click Connect. Remove the battery, re-insert battery, and then connect it to the USB cable whilst holding down the C button. Ignore Flash File System and Main Firmware. Instead, click on the third box (Customize File System). Select phone model to K800. Then select CDA and Region (you can look on the left hand side and see what CDA you already have), just check in the drop down list and find the one that matches. Even if not then find the one that is closest (didn't do mine any harm). When Ready, click Flash. After a minute or so, once complete, disconnect USB cable remove battery from phone, insert ANY SIM CARD from ANY PROVIDER, re-insert battery and switch on, you are unlocked! I hope this helps people as I am so impressed I figured it out, took me a while like I say. Also, don't flame me for this or be nasty, I am genuinely trying to help people do all of this that certain companies charge a fortune for for free! This worked on my Rogers k790a, it also works on k800i, w580i, etc. Here are some quick pictures.