Patching SE DB2020 [SE Modding]

Before we do a patching,  we must have QAPatch .Start Far Manager press Alt+F1 then 4 to start jdflasher plugin, in the Script section choose DB2020, in the port section choose your cable type, I’m using DCU-60 (standard USB lead that comes with the phone), in the speed section select the highest available (921600 :p) now press jump down into the large rabbit-hole, you should now see a screen that looks like this.



Connect your phone in the usual way, remove battery, sim card and memory card, insert the battery and press and hold the “C” button down on your phone and connect your USB lead to the phone, you should now see a screen that looks like this.

Now we need to enter “bflash” NOT “oflash” and you will get a message saying “you MUST flash main after connect, do you want to continue?” and select yes.

Jdflasher will now start bypassing the security, this will be done in 3 parts.
You will eventually get a message saying “unplug cable, reinsert battery and press ok (1/3), follow the instructions and jdflasher.

Jdflasher will now ask you to reconnect and then start the second phase of the bypass.
You will be prompted to disconnect and remove the battery, when you connect again you will get another prompt almost straight away to do the same (phase 3/3), once you reconnect you will then get a message saying “don’t forget to flash MAIN first”.

And we do as instructed and flash our Main firmware file (see flashing section for instructions to flash the main firmware file).

Once you have flashed the Main firmware file you are ready to apply the QAPatch (this should always be the first patch applied to DB2020), highlight “quick_access_K810_R8BA024.vkp” and press F5-Copy (or drag and drop patch into the left window) and you’ll get a screen like this.

You will then be prompted with a screen asking how you want to apply patch (as raw which is a big NO!!! NO!!! or as .vkp which is correct), press “yeah, flash it” to apply patch.

Jdflasher will now write patch to phone, if you get warning saying byte mismatch the general rule is DONT PATCH IT!!!

Once applied press “..” to exit jdflasher and you will be prompted “are you sure” select yes unless you plan on applying more patches while you’re in the flash area of your phone.
Now that you have applied the QAPatch you can enter jdflasher using qa2020 script, this is much faster than DB2020 script, and also has options “bflash” and “bfs” which allows you to apply patches like on other phones like DB2010 without needing to do the security bypass again, you will also be able to read files from the Internal FS (make back ups).

Appling/Removing Patches.

start Far Manager press Alt+F1 then 4 to start jdflasher plugin, in the Script section choose you phone model or if you have applied QAPatch then select qa2020 for patching DB2020 (if you haven’t applied QAPatch then do so now), in the port section choose your cable type, I’m using DCU-60 (standard USB lead that comes with the phone), in the speed section select the highest available (921600 :p) now press jump down into the large rabbit-hole, you should now see a screen that looks like this.

Connect your phone in the usual way, remove battery, sim card and memory card, insert the battery and press and hold the “C” button down on your phone and connect your USB lead to the phone, you should now see a screen that looks like this.

Now we need to enter “bflash” NOT “oflash” and you’ll have a screen that looks like this
(DB2010 CID49 phones will be asked to disconnect and reconnect as they require rest files and so on, so follow the on screen instructions (and make sure rest file is present although jdflasher comes with most of them present)).

To apply a patch browse to vkp file in right window of Far Manager, highlight .vkp then press F5-Copy (or drag and drop .vkp into left window) and you’ll have a screen that looks like this.

Now press copy and you’ll come to a screen like this.
(if you have applied a patch and want to remove the patch you must mark the box “remove patch”)

Then press “yeah, flash it” to apply the patch.

Once you’ve applied the patch, press “..” to exit jdflasher all done.
(if you get an error saying bytes mismatch my advice is DONT APPLY!!!

Source : http://forums.se-nse.net/topic/27775-advanced-usage-jdflasher/+make+QApatch&hl=id&client=firefox-a&gl=id&strip=0
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